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

Flights connecting via Seattle (SEA) have the shortest average one-way travel time: 13h 00m.

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

The number of flights available between London and Portland is 19 per week as of July 2025. The most frequent departure day is Wed, with 37% of weekly flights leaving on this day.

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

Flights via Phoenix (PHX) offer the lowest average return price of £558.

Which airlines fly to Portland?

British Airways, Finnair and Icelandair are the top three most popular airlines that fly to Portland from London according to our data. British Airways is the first choice among our users, with 58% 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.

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

Reykjavik (KEF) was the most common stop: 41% of momondo users choosing one-stop flights on this route connected there.

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

2 flights are operational daily from London to Portland as of July 2025. The most popular departure time for this route is 15:00, with 100% of flights per day taking off in the afternoon.

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

San Francisco (SFO) has the shortest average stopover time for this route: 1h 23m.

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

Prices for flights from London to Portland Airport are refreshed on a daily basis.

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

As of July 2025, there are 11 operators available to choose from for flights from London to Portland Airport.

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

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

The travel and health documents you'll need for your trip to Portland Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Portland Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

£286 Cheap Flights from London to Portland in 2025

Q: What is the typical price of a round-trip flight between London and Portland?

Prices are currently low for flights on this route. Typical prices usually range from £680 to £1,060. The lowest price recently found on this route was £460.

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Find the cheapest flights from London to Portland

Round-trip

One-way

Last minute

Direct

Cheap return flights

10:55 - 09:26LGW-PDX

30h 31m1 stop

17:35 - 10:55PDX-LGW

33h 20m1 stop

£460

Find Deal

Fri, 26 Sep - Tue, 30 Sep

09:50 - 22:47LGW-PDX

20h 57m2 stops

07:00 - 10:55PDX-LGW

19h 55m1 stop

£469

Find Deal

Mon, 29 Sep - Sun, 5 Oct

13:00 - 17:55LGW-PDX

12h 55m1 stop

15:20 - 14:35PDX-LGW

15h 15m1 stop

£481Icelandair

Find Deal

Tue, 9 Sep - Mon, 15 Sep

21:25 - 17:55LHR-PDX

28h 30m1 stop

15:20 - 20:20PDX-LHR

21h 00m1 stop

£481Icelandair

Find Deal

Mon, 1 Sep - Mon, 15 Sep

15:40 - 17:35LHR-PDX

9h 55mdirect

10:28 - 07:20PDX-LHR

12h 52m1 stop

£532British Airways

Find Deal

Tue, 9 Sep - Mon, 15 Sep

06:30 - 23:01LHR-PDX

24h 31m2 stops

12:53 - 12:20PDX-LHR

15h 27m1 stop

£541Lufthansa

Find Deal

Mon, 6 Oct - Thu, 16 Oct

09:30 - 20:50LHR-PDX

19h 20m2 stops

12:53 - 09:40PDX-LHR

12h 47m1 stop

£546Lufthansa

Find Deal

Thu, 2 Oct - Wed, 15 Oct

15:40 - 17:35LHR-PDX

9h 55mdirect

11:18 - 09:05PDX-LHR

13h 47m1 stop

£548British Airways

Find Deal

Tue, 2 Sep - Tue, 16 Sep

19:05 - 11:20LCY-PDX

24h 15m1 stop

06:00 - 08:10PDX-LCY

18h 10m2 stops

£655Virgin Atlantic

Find Deal

Sun, 5 Oct - Tue, 14 Oct

20:10 - 11:20LCY-PDX

23h 10m1 stop

12:55 - 08:10PDX-LCY

11h 15m1 stop

£667Virgin Atlantic

Find Deal

Tue, 23 Sep - Sun, 19 Oct

Air Canada flights from London to Portland

Our best Air Canada deals on London to Portland flight tickets

Air Canada

17 Sept

LHR08:40London Heathrow

18h 06m

2 stops

PDX18:46Portland

21 Sept

PDX06:15Portland

19h 20m

2 stops

LHR09:35London Heathrow

£535

Find similar

Air Canada

25 Sept

LHR08:40London Heathrow

18h 06m

2 stops

PDX18:46Portland

2 Oct

PDX15:25Portland

13h 55m

1 stop

LHR13:20London Heathrow

£538

Find similar

Air Canada

21 Sept

LHR14:10London Heathrow

12h 36m

1 stop

PDX18:46Portland

11 Oct

PDX06:15Portland

23h 05m

1 stop

LHR13:20London Heathrow

£557

Find similar

American Airlines flights from London to Portland

Our best American Airlines deals on London to Portland flight tickets

American Airlines

25 Aug

LHR15:40London Heathrow

9h 55m

PDX17:35Portland

9 Sept

PDX19:25Portland

9h 35m

LHR13:00London Heathrow

£556

Find similar

American Airlines

9 Sept

LHR15:40London Heathrow

9h 55m

PDX17:35Portland

18 Sept

PDX19:25Portland

9h 35m

LHR13:00London Heathrow

£561

Find similar

American Airlines

25 Aug

LHR15:40London Heathrow

9h 55m

PDX17:35Portland

9 Sept

PDX19:25Portland

9h 35m

LHR13:00London Heathrow

£562

Find similar

Fly from

Fly to

Route

Depart

Return

Price

LondonPortland

LGW - PDX

LGWPDX

London Gatwick

Fri 26/9

10:55-09:26

1 stop30h 31m

Portland

Tue 30/9

17:35-10:55

1 stop33h 20m

£460

LondonPortland

LGW - PDX

LGWPDX

London Gatwick

Mon 29/9

09:50-22:47

2 stops20h 57m

Portland

Sun 5/10

07:00-10:55

1 stop19h 55m

£469

LondonPortland

LGW - PDX

LGWPDX

London Gatwick

Tue 9/9

13:00-17:55

1 stop12h 55m

Portland

Mon 15/9

15:20-14:35

1 stop15h 15m

£481

LondonPortland

LHR - PDX

LHRPDX

London Heathrow

Mon 1/9

21:25-17:55

1 stop28h 30m

Portland

Mon 15/9

15:20-20:20

1 stop21h 00m

£481

LondonPortland

LHR - PDX

LHRPDX

London Heathrow

Tue 9/9

15:40-17:35

Nonstop9h 55m

Portland

Mon 15/9

10:28-07:20

1 stop12h 52m

£532

LondonPortland

LHR - PDX

LHRPDX

London Heathrow

Mon 6/10

06:30-23:01

2 stops24h 31m

Portland

Thu 16/10

12:53-12:20

1 stop15h 27m

£541

LondonPortland

LHR - PDX

LHRPDX

London Heathrow

Thu 2/10

09:30-20:50

2 stops19h 20m

Portland

Wed 15/10

12:53-09:40

1 stop12h 47m

£546

LondonPortland

LHR - PDX

LHRPDX

London Heathrow

Tue 2/9

15:40-17:35

Nonstop9h 55m

Portland

Tue 16/9

11:18-09:05

1 stop13h 47m

£548

LondonPortland

LCY - PDX

LCYPDX

London City

Sun 5/10

19:05-11:20

1 stop24h 15m

Portland

Tue 14/10

06:00-08:10

2 stops18h 10m

£655

LondonPortland

LCY - PDX

LCYPDX

London City

Tue 23/9

20:10-11:20

1 stop23h 10m

Portland

Sun 19/10

12:55-08:10

1 stop11h 15m

£667

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from London 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

Stopovers

Other information

What is the typical price of a round-trip flight between London and Portland?

What is the cheapest month to fly to Portland?

The cheapest month to fly to Portland from London is in February. Flight prices, which tend to average around £575, are often lower during this time because this is during the off-season. If you don’t want to visit Portland in February, then you should wait until March to fly from London, when ticket prices are also cheap, with an average price of £575.

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 Tuesday when prices can be found for as low as £662. 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 £798.

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

Flying to Portland from London in the morning is the least expensive time of day to depart. momondo users have found prices as low as £617 when looking at flights departing in the morning. Try not to purchase tickets in the afternoon because they tend to be around £755. Of course, these prices can vary depending on the time of year and what airport you fly to.

What is the cheapest London to Portland flight route?

Fly from London Heathrow to Portland for the best London - 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 when booking weeks ahead of your departure date. In general, you can expect to find flights to Portland for around £668 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 for as low as £606 on momondo.

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

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

How have London to Portland flight prices changed over time?

As of July 2025, prices for London to Portland flights are approximately 3% cheaper when compared to flights at the same time last year.

When to book flights from London to Portland

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

Estimated return price

Cheap London to Portland (LON to PDX) flight deals and tips

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

Best price found	£286
Fastest flight time	9h 55m
Direct flights	Every day
Airports in Portland	1 airport

The best one-way flight to Portland from London in the past 72 hours is £286. The best return flight deal from London to Portland found on momondo in the last 72 hours is £460.

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

Direct flights go from London to Portland every day.

There is 1 airport near Portland: Portland (PDX)

Search flight deals

How far is London to Portland by plane?
The straight-line distance from London to Portland is 4909.8 mi. Flights usually cover this in 9h 55m, depending on flying conditions and air traffic around both airports.
When did momondo last update prices for flights from London to Portland Airport?
Prices for flights from London to Portland Airport are refreshed on a daily basis.
How many operators does momondo search for flights from London to Portland Airport?
As of July 2025, there are 11 operators available to choose from for flights from London to Portland Airport.
How old do you have to be to fly from London 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 to Portland Airport.
What documentation or ID do you need to fly to Portland Airport?
The travel and health documents you'll need for your trip to Portland Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Portland Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from London to Portland?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from London to Portland is Boeing 787-10 Dreamliner (53.46% of total bookings). The next most popular plane models are Boeing 787-8 Dreamliner (26.43%), Boeing 787-9 Dreamliner (14.34%), and Boeing 777 (1.59%).
What is the most popular airline from London to Portland?
momondo data reveals that the most frequently booked airline on the route from London to Portland is British Airways, representing 45% of all bookings. The subsequent popular airlines are Finnair at 14%, Icelandair at 12%, and Virgin Atlantic at 8%.

Best airlines flying from London to Portland

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

Airline	Rating	Free Cancellation	Price
Icelandair	PriceFrom £444	Free Cancellation	Rating 7.0 519 reviews	Search Icelandair flights
United Airlines	PriceFrom £493	Free Cancellation	Rating 7.4 8,896 reviews	Search United Airlines flights
Air Canada	PriceFrom £500	Free Cancellation	Rating 7.1 9,837 reviews	Search Air Canada flights
Finnair	PriceFrom £506	Free Cancellation	Rating 7.6 1,316 reviews	Search Finnair flights
Lufthansa	PriceFrom £509	Free Cancellation	Rating 6.8 7,269 reviews	Search Lufthansa flights
Virgin Atlantic	PriceFrom £510	Free Cancellation	Rating 7.4 655 reviews	Search Virgin Atlantic flights
British Airways	PriceFrom £510	Free Cancellation	Rating 6.6 7,217 reviews	Search British Airways flights
KLM	PriceFrom £557	Free Cancellation	Rating 7.8 1,383 reviews	Search KLM flights
American Airlines	PriceFrom £561	Free Cancellation	Rating 7.2 10,000 reviews	Search American Airlines flights
Iberia	PriceFrom £576	Free Cancellation	Rating 7.0 2,859 reviews	Search Iberia flights

Finnair Flights From London to Portland
Across 8 Finnair flights from London to Portland this week, the average price was £810, with the best Finnair deals starting from £673 round-trip. 1,316 users have rated Finnair on momondo, with an average score of 7.6/10.
American Airlines Flights From London to Portland
£747 is the best American Airlines flight deal from London to Portland found on momondo over the last 72 hours. The average American Airlines ticket price found was closer to £895, however, with flight time and availability significantly affecting the price. American Airlines (7.2/10 from 10,000 user reviews) flies into Portland from London 8 times in an average week so prices can vary.

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Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from London to Portland for you.

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

Yes. momondo allows you to filter the results for London to Portland flights to just show those with flexible booking policies.

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

momondo provides multiple filters to help you find the best flight to Portland from London. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Price alerts on flights to Portland from London are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

An easier way to manage your Portland trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.

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Cheap flights from London to Portland from £286

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from London to Portland departing on 2/10. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names, great deals

Big names, great deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

Find the cheapest flights from London to Portland

Cheap return flights

Cheap one-way flights

Cheap last-minute flights

Cheap direct flights

Air Canada flights from London to Portland

Our best Air Canada deals on London to Portland flight tickets

American Airlines flights from London to Portland

Our best American Airlines deals on London to Portland flight tickets

momondo Fare Finder

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

See travel insights to Portland from

How to get the cheapest flight ticket from London 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 typical price of a round-trip flight between London and Portland?

What is the cheapest month to fly to Portland?

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 Tuesday when prices can be found for as low as £662. 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 £798.

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

What is the cheapest London to Portland flight route?

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

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

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

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

How have London to Portland flight prices changed over time?

As of July 2025, prices for London to Portland flights are approximately 3% cheaper when compared to flights at the same time last year.

Which airlines fly to Portland?

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

Reykjavik (KEF) was the most common stop: 41% of momondo users choosing one-stop flights on this route connected there.

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

Flights via Phoenix (PHX) offer the lowest average return price of £558.

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

Flights connecting via Seattle (SEA) have the shortest average one-way travel time: 13h 00m.

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

San Francisco (SFO) has the shortest average stopover time for this route: 1h 23m.

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

2 flights are operational daily from London to Portland as of July 2025. The most popular departure time for this route is 15:00, with 100% of flights per day taking off in the afternoon.

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

The number of flights available between London and Portland is 19 per week as of July 2025. The most frequent departure day is Wed, with 37% of weekly flights leaving on this day.

When to book flights from London to Portland

Cheap London to Portland (LON to PDX) flight deals and tips

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

Best price found

Fastest flight time

Direct flights

Airports in Portland

How far is London to Portland by plane?

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

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

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

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

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

What is the most popular airline from London to Portland?

Best airlines flying from London to Portland

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

Finnair Flights From London to Portland

American Airlines Flights From London 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?

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

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

An easier way to manage your Portland trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to the United States

Airports servicing Oregon