Which stopover airport offers the lowest fares from London Heathrow Airport to Portland?

Flights via Phoenix (PHX) offer the lowest average return price of £555.

What is the cheapest airline that flies from London Heathrow to Portland?

SWISS, Icelandair, and Virgin Atlantic are the most popular carriers operating from London Heathrow to Portland

Which airline has the best punctuality record on London to Portland flights?

According to our data, Malaysia Airlines have had the fewest delays on this route over the last 12 months, with about 18% of their flights experiencing any sort of delay.

Which airport is the most popular for stopovers for flights between London Heathrow Airport and Portland?

Reykjavik (KEF) was the most common stop: 42% of momondo users choosing one-stop flights on this route connected there.

Which stopover airport has the shortest connection time from London Heathrow Airport to Portland?

Denver (DEN) has the shortest average stopover time for this route: 1h 28m.

Which stopover airport has the shortest travel time from London Heathrow Airport to Portland?

Flights connecting via Seattle (SEA) have the shortest average one-way travel time: 13h 06m.

What day of the week experiences the fewest flight delays on this route?

Saturday is statistically the day of the week that experiences the fewest delays on this flight route. Wednesday has historically seen more delays on average compared to the rest of the week.

How many flights depart from London Heathrow Airport to Portland on average per week?

42 flights are operational weekly from London Heathrow Airport to Portland as of October 2025. The most popular departure day for this route is Mon, with 17% of flights per week taking off on this day.

How many flights depart from London Heathrow Airport to Portland on average per day?

The number of flights available between London Heathrow Airport and Portland is 6 per day as of October 2025. The most frequent departure time is 15:00, with 100% of daily flights leaving in the afternoon.

How often are flights from London to Portland delayed?

Historically, on average around 22% of flights between London and Portland have experienced a delay on any given week. The average delay length over the past 12 months has been 125 minutes.

What is the most punctual flight time for London to Portland flights?

Generally, flights departing in the early afternoon tend to experience fewer delays. Flights departing in the early afternoon have, in the past, seen delays more frequently in comparison.

Which airlines fly to Portland?

British Airways, Finnair and Virgin Atlantic are the top three most popular airlines that fly to Portland from London Heathrow Airport according to our data. British Airways is the first choice among our users, with 65% of people opting to fly with this airline when travelling to Portland. Keep in mind that there are 11 different airlines that fly to Portland on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from London Heathrow Airport to Portland Airport?

Prices for flights from London Heathrow Airport to Portland Airport were last updated today.

How many operators does momondo search for flights from London Heathrow Airport to Portland Airport?

The number of operators available for flights from London Heathrow Airport to Portland Airport is 11 as of October 2025.

How old do you have to be to fly from London Heathrow Airport to Portland Airport?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from London Heathrow Airport to Portland Airport.

What documentation or ID do you need to fly to Portland Airport?

The travel and health documents required for your trip to Portland Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Portland Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

£300 Cheap Flights from London Heathrow Airport to Portland in 2025/26

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07:40 - 18:30LHR-PDX

18h 50m2 stops

15:55 - 07:25PDX-LHR

31h 30m1 stop

£528Lufthansa

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Tue, 9 Dec - Sun, 14 Dec

20:35 - 17:00LHR-PDX

28h 25m1 stop

14:45 - 10:50PDX-LHR

12h 05m1 stop

£533Icelandair

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Sun, 7 Dec - Mon, 15 Dec

12:15 - 17:00LHR-PDX

12h 45m1 stop

14:45 - 19:30PDX-LHR

20h 45m1 stop

£535Icelandair

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Mon, 17 Nov - Mon, 1 Dec

13:25 - 09:15LHR-PDX

27h 50m2 stops

19:00 - 10:10PDX-LHR

31h 10m2 stops

£566Air Canada

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Mon, 17 Nov - Mon, 1 Dec

13:25 - 09:15LHR-PDX

27h 50m2 stops

19:00 - 11:50PDX-LHR

32h 50m1 stop

£574Air Canada

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Mon, 17 Nov - Mon, 1 Dec

07:30 - 17:52LHR-PDX

18h 22m2 stops

23:59 - 07:55PDX-LHR

23h 56m1 stop

£575United Airlines

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Mon, 17 Nov - Mon, 24 Nov

08:30 - 22:15LHR-PDX

21h 45m2 stops

23:28 - 20:35PDX-LHR

13h 07m1 stop

£583United Airlines

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Wed, 10 Dec - Sun, 14 Dec

17:05 - 11:25LHR-PDX

26h 20m1 stop

13:45 - 10:00PDX-LHR

12h 15m1 stop

£586Virgin Atlantic

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Tue, 18 Nov - Wed, 17 Dec

13:45 - 15:55LHR-PDX

10h 10mdirect

12:02 - 11:40PDX-LHR

15h 38m1 stop

£587British Airways

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Mon, 16 Feb - Mon, 23 Feb

13:45 - 15:55LHR-PDX

10h 10mdirect

17:45 - 11:20PDX-LHR

9h 35mdirect

£594British Airways

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Mon, 24 Nov - Wed, 3 Dec

Lufthansa flights from London Heathrow Airport to Portland

Our best Lufthansa deals on London Heathrow Airport to Portland flight tickets

Lufthansa

9 Dec

LHR07:40London Heathrow

18h 50m

2 stops

PDX18:30Portland

14 Dec

PDX15:55Portland

31h 30m

1 stop

LHR07:25London Heathrow

£528

Find similar

Lufthansa

17 Nov

LHR11:35London Heathrow

14h 17m

1 stop

PDX17:52Portland

1 Dec

PDX10:05Portland

13h 20m

1 stop

LHR07:25London Heathrow

£582

Find similar

Lufthansa

26 Nov

LHR07:40London Heathrow

18h 56m

2 stops

PDX18:36Portland

21 Jan

PDX07:00Portland

18h 40m

2 stops

LHR09:40London Heathrow

£584

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Air Canada flights from London Heathrow Airport to Portland

Our best Air Canada deals on London Heathrow Airport to Portland flight tickets

Air Canada

17 Nov

LHR13:25London Heathrow

27h 50m

2 stops

PDX09:15Portland

1 Dec

PDX19:00Portland

31h 10m

2 stops

LHR10:10London Heathrow

£566

Find similar

Air Canada

17 Nov

LHR13:25London Heathrow

27h 50m

2 stops

PDX09:15Portland

1 Dec

PDX19:00Portland

32h 50m

1 stop

LHR11:50London Heathrow

£574

Find similar

Air Canada

24 Nov

LHR13:25London Heathrow

27h 50m

2 stops

PDX09:15Portland

8 Dec

PDX09:50Portland

16h 20m

2 stops

LHR10:10London Heathrow

£575

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momondo Fare Finder

Use the filters below to find and compare flights from London Heathrow Airport to Portland that are best for you.

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Price

LondonPortland

LHR - PDX

LHRPDX

London Heathrow

Tue 9/12

07:40-18:30

2 stops18h 50m

Portland

Sun 14/12

15:55-07:25

1 stop31h 30m

£528

LondonPortland

LHR - PDX

LHRPDX

London Heathrow

Sun 7/12

20:35-17:00

1 stop28h 25m

Portland

Mon 15/12

14:45-10:50

1 stop12h 05m

£533

LondonPortland

LHR - PDX

LHRPDX

London Heathrow

Mon 17/11

12:15-17:00

1 stop12h 45m

Portland

Mon 1/12

14:45-19:30

1 stop20h 45m

£535

LondonPortland

LHR - PDX

LHRPDX

London Heathrow

Mon 17/11

13:25-09:15

2 stops27h 50m

Portland

Mon 1/12

19:00-10:10

2 stops31h 10m

£566

LondonPortland

LHR - PDX

LHRPDX

London Heathrow

Mon 17/11

13:25-09:15

2 stops27h 50m

Portland

Mon 1/12

19:00-11:50

1 stop32h 50m

£574

LondonPortland

LHR - PDX

LHRPDX

London Heathrow

Mon 17/11

07:30-17:52

2 stops18h 22m

Portland

Mon 24/11

23:59-07:55

1 stop23h 56m

£575

LondonPortland

LHR - PDX

LHRPDX

London Heathrow

Wed 10/12

08:30-22:15

2 stops21h 45m

Portland

Sun 14/12

23:28-20:35

1 stop13h 07m

£583

LondonPortland

LHR - PDX

LHRPDX

London Heathrow

Tue 18/11

17:05-11:25

1 stop26h 20m

Portland

Wed 17/12

13:45-10:00

1 stop12h 15m

£586

LondonPortland

LHR - PDX

LHRPDX

London Heathrow

Mon 16/2

13:45-15:55

Nonstop10h 10m

Portland

Mon 23/2

12:02-11:40

1 stop15h 38m

£587

LondonPortland

LHR - PDX

LHRPDX

London Heathrow

Mon 24/11

13:45-15:55

Nonstop10h 10m

Portland

Wed 3/12

17:45-11:20

Nonstop9h 35m

£594

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Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from London Heathrow Airport to Portland

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Delays

Stopovers

Other information

What is the cheapest month to fly to Portland?

The cheapest month to fly to Portland from London Heathrow Airport is in September. Flight prices, which tend to average around £561, are often lower during this time because this is during the off-season. If you don’t want to visit Portland in September, then you should wait until November to fly from London Heathrow Airport, when ticket prices are also cheap, with an average price of £580.

What is the cheapest day to depart on your flight to Portland?

The cheapest day to depart on your flight to Portland is on a Wednesday when prices can be found for as low as £667. This is often the case because there is less demand to fly during this day of the week. The most expensive day to fly to Portland is Sunday, with ticket prices averaging around £803.

What is the cheapest time of day to depart on your flight to Portland?

Flying to Portland from London Heathrow Airport in the morning is the least expensive time of day to depart. momondo users have found prices as low as £614 when looking at flights departing in the morning. Try not to purchase tickets in the afternoon because they tend to be around £732. Of course, these prices can vary depending on the time of year and what airport you fly to.

What is the cheapest London Heathrow to Portland flight route?

Fly from London Heathrow to Portland for the best London Heathrow - Portland flight prices

How far in advance should I book a flight to Portland?

You are more likely to see cheaper flights to Portland from London Heathrow Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Portland for around £659 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Portland from London Heathrow Airport for as low as £601 on momondo.

What cabin class options are available on London Heathrow to Portland flights?

There are 3 cabin classes available to choose from on London Heathrow to Portland flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on London Heathrow Airport to Portland flights?

You could potentially save up to 27% on your flight if you consider stops on a London Heathrow Airport to Portland flight.

How have London Heathrow Airport to Portland flight prices changed over time?

As of October 2025, prices for London Heathrow Airport to Portland flights are approximately 15% more expensive when compared to flights at the same time last year.

When to book flights from London Heathrow Airport to Portland

Are you open to changing your travel dates? Check out the ideal times to fly from London Heathrow Airport to Portland according to our flight data. Find out which month and days have the cheapest flights.

Estimated return price

Cheap London Heathrow Airport to Portland (LHR to PDX) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from London Heathrow Airport to Portland

Best price found	£609
Fastest flight time	9h 55m
Direct flights	Mon, Tue, Thu and Sat
Airports in Portland	1 airport

The best flight deal from London Heathrow Airport to Portland found on momondo in the last 72 hours is £609

The fastest flight from London Heathrow Airport to Portland takes 9h 55m

Direct flights go from London Heathrow Airport to Portland on Monday, Tuesday, Thursday and Saturday. There are no airlines offering direct flights..

There is 1 airport near Portland: Portland (PDX)

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How far is London Heathrow to Portland by plane?
The straight-line distance from London Heathrow to Portland is 4902.4 mi. Typically, this will take 10h 10m by plane in normal conditions.
When did momondo last update prices for flights from London Heathrow Airport to Portland Airport?
Prices for flights from London Heathrow Airport to Portland Airport were last updated today.
How many operators does momondo search for flights from London Heathrow Airport to Portland Airport?
The number of operators available for flights from London Heathrow Airport to Portland Airport is 11 as of October 2025.
How old do you have to be to fly from London Heathrow Airport to Portland Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from London Heathrow Airport to Portland Airport.
What documentation or ID do you need to fly to Portland Airport?
The travel and health documents required for your trip to Portland Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Portland Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular plane model from London Heathrow Airport to Portland?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from London Heathrow Airport to Portland is Boeing 787-8 Dreamliner (41.85% of total bookings). The next most popular plane models are Boeing 787-10 Dreamliner (37.58%), Boeing 787-9 Dreamliner (14.75%), and Boeing 777 (2.07%).
What is the most popular airline from London Heathrow Airport to Portland?
Based on momondo bookings for flights between London Heathrow Airport and Portland, the leading airline is British Airways, making up 51% of the total bookings. Other popular airlines include Finnair with 10%, Virgin Atlantic with 10%, and Icelandair with 8%.

Best airlines flying from London Heathrow Airport to Portland

Compare and see reviews for airlines that fly from London Heathrow Airport to Portland with momondo

Airline	Rating	Free Cancellation	Price
Icelandair	PriceFrom £426	Free Cancellation	Rating 7.1 561 reviews	Search Icelandair flights
Air Canada	PriceFrom £498	Free Cancellation	Rating 7.1 10,345 reviews	Search Air Canada flights
Finnair	PriceFrom £503	Free Cancellation	Rating 7.6 1,333 reviews	Search Finnair flights
Lufthansa	PriceFrom £506	Free Cancellation	Rating 6.8 7,511 reviews	Search Lufthansa flights
British Airways	PriceFrom £508	Free Cancellation	Rating 6.7 7,467 reviews	Search British Airways flights
Virgin Atlantic	PriceFrom £513	Free Cancellation	Rating 7.5 670 reviews	Search Virgin Atlantic flights
United Airlines	PriceFrom £515	Free Cancellation	Rating 7.4 8,990 reviews	Search United Airlines flights
KLM	PriceFrom £523	Free Cancellation	Rating 7.7 1,404 reviews	Search KLM flights
American Airlines	PriceFrom £542	Free Cancellation	Rating 7.2 11,028 reviews	Search American Airlines flights
Iberia	PriceFrom £574	Free Cancellation	Rating 7.0 2,997 reviews	Search Iberia flights

Finnair Flights From London Heathrow Airport to Portland
The lowest priced Finnair flight from London Heathrow Airport to Portland from the last 72 hours was £503. Generally, Finnair has 6 flights on this route every week with an average price of £604. Finnair is rated 7.6/10 by our users.
American Airlines Flights From London Heathrow Airport to Portland
American Airlines (7.2/10 from 11,028 reviews) operates around 6 flights from London Heathrow Airport to Portland in any given week. The average American Airlines airfare for this route is around £693, with deals from around £542 rare but found on momondo. Referenced prices are for round-trip London Heathrow Airport to Portland flight searches in the last 72 hours.

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Why use momondo?

Why should I use momondo to find a flight deal from London to Portland?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Portland from London.

Can I find flights from London to Portland with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Portland from London with this policy.

How can momondo help me find flights from London to Portland?

momondo helps you find the best flight between London and Portland by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from London to Portland right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Portland, momondo offers a useful price alert feature which will track prices for flights to Portland from London and alert you when they change.

An easier way to manage your Portland trip

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Cheap flights from London Heathrow Airport to Portland from £300

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Use the filters below to find and compare flights from London Heathrow Airport to Portland that are best for you.

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How to get the cheapest flight ticket from London Heathrow Airport to Portland

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Portland?

What is the cheapest day to depart on your flight to Portland?

What is the cheapest time of day to depart on your flight to Portland?

What is the cheapest London Heathrow to Portland flight route?

Fly from London Heathrow to Portland for the best London Heathrow - Portland flight prices

How far in advance should I book a flight to Portland?

What cabin class options are available on London Heathrow to Portland flights?

There are 3 cabin classes available to choose from on London Heathrow to Portland flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on London Heathrow Airport to Portland flights?

You could potentially save up to 27% on your flight if you consider stops on a London Heathrow Airport to Portland flight.

How have London Heathrow Airport to Portland flight prices changed over time?

As of October 2025, prices for London Heathrow Airport to Portland flights are approximately 15% more expensive when compared to flights at the same time last year.

What is the cheapest airline that flies from London Heathrow to Portland?

SWISS, Icelandair, and Virgin Atlantic are the most popular carriers operating from London Heathrow to Portland

Which airlines fly to Portland?

How often are flights from London to Portland delayed?

Historically, on average around 22% of flights between London and Portland have experienced a delay on any given week. The average delay length over the past 12 months has been 125 minutes.

What is the most punctual flight time for London to Portland flights?

Generally, flights departing in the early afternoon tend to experience fewer delays. Flights departing in the early afternoon have, in the past, seen delays more frequently in comparison.

What day of the week experiences the fewest flight delays on this route?

Saturday is statistically the day of the week that experiences the fewest delays on this flight route. Wednesday has historically seen more delays on average compared to the rest of the week.

Which airline has the best punctuality record on London to Portland flights?

According to our data, Malaysia Airlines have had the fewest delays on this route over the last 12 months, with about 18% of their flights experiencing any sort of delay.

Which airport is the most popular for stopovers for flights between London Heathrow Airport and Portland?

Reykjavik (KEF) was the most common stop: 42% of momondo users choosing one-stop flights on this route connected there.

Which stopover airport offers the lowest fares from London Heathrow Airport to Portland?

Flights via Phoenix (PHX) offer the lowest average return price of £555.

Which stopover airport has the shortest travel time from London Heathrow Airport to Portland?

Flights connecting via Seattle (SEA) have the shortest average one-way travel time: 13h 06m.

Which stopover airport has the shortest connection time from London Heathrow Airport to Portland?

Denver (DEN) has the shortest average stopover time for this route: 1h 28m.

How many flights depart from London Heathrow Airport to Portland on average per day?

The number of flights available between London Heathrow Airport and Portland is 6 per day as of October 2025. The most frequent departure time is 15:00, with 100% of daily flights leaving in the afternoon.

How many flights depart from London Heathrow Airport to Portland on average per week?

42 flights are operational weekly from London Heathrow Airport to Portland as of October 2025. The most popular departure day for this route is Mon, with 17% of flights per week taking off on this day.

When to book flights from London Heathrow Airport to Portland

Cheap London Heathrow Airport to Portland (LHR to PDX) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from London Heathrow Airport to Portland

Best price found

Fastest flight time

Direct flights

Airports in Portland

How far is London Heathrow to Portland by plane?

When did momondo last update prices for flights from London Heathrow Airport to Portland Airport?

How many operators does momondo search for flights from London Heathrow Airport to Portland Airport?

How old do you have to be to fly from London Heathrow Airport to Portland Airport?

What documentation or ID do you need to fly to Portland Airport?

What is the most popular plane model from London Heathrow Airport to Portland?

What is the most popular airline from London Heathrow Airport to Portland?

Best airlines flying from London Heathrow Airport to Portland

Compare and see reviews for airlines that fly from London Heathrow Airport to Portland with momondo

Finnair Flights From London Heathrow Airport to Portland

American Airlines Flights From London Heathrow Airport to Portland

Travelling to a place near Portland?

Why use momondo?

Why should I use momondo to find a flight deal from London to Portland?

Can I find flights from London to Portland with flexible booking policies on momondo?