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Cheap flights from Portland to the United Kingdom from £221

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Portland to the United Kingdom departing on 4/6. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Portland to the United Kingdom

Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
15:30 - 23:45
PDX
-
LTN
24h 15m
3 stops
Multiple Airlines Logo
08:15 - 09:30
LTN
-
PDX
33h 15m
3 stops
£549Multiple Airlines
Tue, 21 Apr - Mon, 4 May
Icelandair Logo
15:30 - 20:20
PDX
-
LHR
20h 50m
1 stop
Icelandair Logo
21:25 - 17:55
LHR
-
PDX
28h 30m
1 stop
£562Icelandair
Mon, 28 Sep - Mon, 5 Oct
Scandinavian Airlines Logo
13:00 - 18:25
PDX
-
EDI
21h 25m
2 stops
Scandinavian Airlines Logo
19:10 - 22:26
EDI
-
PDX
35h 16m
2 stops
£657Scandinavian Airlines
Thu, 1 Oct - Mon, 12 Oct
Scandinavian Airlines Logo
13:00 - 18:25
PDX
-
EDI
21h 25m
2 stops
Scandinavian Airlines Logo
19:40 - 16:33
EDI
-
PDX
28h 53m
3 stops
£660Scandinavian Airlines
Thu, 3 Sep - Fri, 11 Sep
Finnair Logo
19:30 - 16:10
PDX
-
GLA
12h 40m
1 stop
Finnair Logo
09:40 - 23:22
GLA
-
PDX
21h 42m
2 stops
£666Finnair
Mon, 17 Aug - Thu, 20 Aug
Virgin Atlantic Logo
13:05 - 17:20
PDX
-
LCY
20h 15m
1 stop
Virgin Atlantic Logo
17:50 - 11:10
LCY
-
PDX
25h 20m
1 stop
£667Virgin Atlantic
Mon, 11 May - Mon, 18 May
Finnair Logo
19:30 - 18:40
PDX
-
GLA
15h 10m
1 stop
Finnair Logo
09:40 - 23:22
GLA
-
PDX
21h 42m
2 stops
£669Finnair
Mon, 17 Aug - Thu, 20 Aug
British Airways Logo
19:30 - 22:30
PDX
-
MAN
19h 00m
1 stop
British Airways Logo
10:50 - 17:40
MAN
-
PDX
14h 50m
1 stop
£671British Airways
Mon, 24 Aug - Thu, 3 Sep
British Airways Logo
19:30 - 22:30
PDX
-
MAN
19h 00m
1 stop
British Airways Logo
10:50 - 17:40
MAN
-
PDX
14h 50m
1 stop
£672British Airways
Mon, 24 Aug - Thu, 3 Sep
Virgin Atlantic Logo
13:05 - 19:45
PDX
-
LCY
22h 40m
1 stop
Virgin Atlantic Logo
19:00 - 11:10
LCY
-
PDX
24h 10m
1 stop
£674Virgin Atlantic
Mon, 4 May - Mon, 11 May

Icelandair flights from Portland to United Kingdom

Our best Icelandair deals on Portland to United Kingdom flight tickets
Icelandair
28 Sept
PDX15:30Portland
20h 50m
1 stop
LHR20:20London Heathrow
5 Oct
LHR21:25London Heathrow
28h 30m
1 stop
PDX17:55Portland
£562
Icelandair
21 Apr
PDX15:30Portland
20h 50m
1 stop
LHR20:20London Heathrow
29 Apr
LHR13:05London Heathrow
12h 55m
1 stop
PDX18:00Portland
£566
Icelandair
21 Apr
PDX15:30Portland
12h 25m
1 stop
LHR11:55London Heathrow
29 Apr
LHR13:05London Heathrow
12h 55m
1 stop
PDX18:00Portland
£567

Scandinavian Airlines flights from Portland to United Kingdom

Our best Scandinavian Airlines deals on Portland to United Kingdom flight tickets
Scandinavian Airlines
1 Sept
PDX13:00Portland
21h 30m
2 stops
LHR18:30London Heathrow
28 Oct
LHR06:40London Heathrow
22h 46m
2 stops
PDX22:26Portland
£611
Scandinavian Airlines
14 Sept
PDX10:00Portland
24h 30m
2 stops
LHR18:30London Heathrow
28 Sept
LHR19:30London Heathrow
29h 03m
2 stops
PDX16:33Portland
£612
Scandinavian Airlines
14 Sept
PDX13:00Portland
21h 30m
2 stops
LHR18:30London Heathrow
28 Sept
LHR19:30London Heathrow
29h 03m
2 stops
PDX16:33Portland
£614

momondo Fare Finder

 
Customise your flight search to find flights from Portland to United Kingdom that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 279,928 searches. Data last updated 11 April 2026.
Use the filters below to find and compare flights from Portland to the United Kingdom that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

PortlandLondon

PDX - LTN

PDXLTN

Portland

Tue 21/4

15:30-23:45

3 stops24h 15m

London Luton

Mon 4/5

08:15-09:30

3 stops33h 15m

£549

PortlandLondon

PDX - LHR

PDXLHR

Portland

Mon 28/9

15:30-20:20

1 stop20h 50m

London Heathrow

Mon 5/10

21:25-17:55

1 stop28h 30m

£562

PortlandEdinburgh

PDX - EDI

PDXEDI

Portland

Thu 1/10

13:00-18:25

2 stops21h 25m

Edinburgh Turnhouse

Mon 12/10

19:10-22:26

2 stops35h 16m

£657

PortlandEdinburgh

PDX - EDI

PDXEDI

Portland

Thu 3/9

13:00-18:25

2 stops21h 25m

Edinburgh Turnhouse

Fri 11/9

19:40-16:33

3 stops28h 53m

£660

PortlandGlasgow

PDX - GLA

PDXGLA

Portland

Mon 17/8

19:30-16:10

1 stop12h 40m

Glasgow Intl

Thu 20/8

09:40-23:22

2 stops21h 42m

£666

PortlandLondon

PDX - LCY

PDXLCY

Portland

Mon 11/5

13:05-17:20

1 stop20h 15m

London City

Mon 18/5

17:50-11:10

1 stop25h 20m

£667

PortlandGlasgow

PDX - GLA

PDXGLA

Portland

Mon 17/8

19:30-18:40

1 stop15h 10m

Glasgow Intl

Thu 20/8

09:40-23:22

2 stops21h 42m

£669
Fastest return journey

PortlandManchester

PDX - MAN

PDXMAN

Portland

Mon 24/8

19:30-22:30

1 stop19h 00m

Manchester

Thu 3/9

10:50-17:40

1 stop14h 50m

£671

PortlandManchester

PDX - MAN

PDXMAN

Portland

Mon 24/8

19:30-22:30

1 stop19h 00m

Manchester

Thu 3/9

10:50-17:40

1 stop14h 50m

£672

PortlandLondon

PDX - LCY

PDXLCY

Portland

Mon 4/5

13:05-19:45

1 stop22h 40m

London City

Mon 11/5

19:00-11:10

1 stop24h 10m

£674

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to the United Kingdom from

How to get the cheapest flight ticket from Portland to United Kingdom

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 United Kingdom?

The cheapest month to fly to United Kingdom from Portland is in October. Flight prices, which tend to average around £483, are often lower during this time because this is during the off-season. If you are unable to visit United Kingdom during the month of October, then departing from Portland during the month November is also very affordable. Most momondo users find prices during this month for around £490.

What is the cheapest day to depart on your flight to United Kingdom?

The cheapest day to depart from Portland to United Kingdom is on a Friday. Travellers who choose to depart for United Kingdom on a Friday will often find tickets for as low as £501. When flying out on a Thursday, the most expensive travel day of the week, you can expect to see flight prices from Portland to United Kingdom for around £987.

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

The cheapest time of day to fly to United Kingdom is in the evening when flights can be purchased for as low as £538. Try not to purchase tickets in the afternoon because they tend to be around £624. Of course, these prices can vary depending on the time of year and what airport you fly to.

What is the cheapest Portland to United Kingdom flight route?

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

How far in advance should I book a flight to United Kingdom?

You are more likely to see cheaper flights to United Kingdom from Portland when booking weeks ahead of your departure date. In general, you can expect to find flights to United Kingdom for around £642 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to United Kingdom from Portland for as low as £564 on momondo.

What cabin class options are available on Portland to United Kingdom flights?

There are 2 cabin classes available to choose from on Portland to United Kingdom 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 Portland to United Kingdom flights?

You could potentially save up to 24% on your flight if you consider stops on a Portland to United Kingdom flight.

Cheap Portland to United Kingdom flight deals and tips

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

Best price found

£542

Fastest flight time

9h 30m

Direct flights

Every day

Airports in United Kingdom

1,286 airports
The best one-way flight to United Kingdom from Portland in the past 72 hours is £542. The best return flight deal from Portland to United Kingdom found on momondo in the last 72 hours is £985.
The fastest flight from Portland to United Kingdom takes 9h 30m
Direct flights go from Portland to United Kingdom every day.
There are 1,286 airports in United Kingdom. From Portland there are direct flights to London Heathrow (LHR).
Search flight deals

Frequently asked questions about flying from Portland to the United Kingdom

  • When did momondo last update prices for flights from Portland Airport to United Kingdom?

    Prices for flights from Portland Airport to United Kingdom are updated daily.

  • How many operators does momondo search for flights from Portland Airport to United Kingdom?

  • How old do you have to be to fly from Portland Airport to United Kingdom?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Portland Airport to United Kingdom.

  • What documentation or ID do you need to fly to United Kingdom?

    The travel and health documents you'll need for your trip to United Kingdom 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 United Kingdom. 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 Portland to United Kingdom?

Best airlines flying from Portland to United Kingdom

Compare and see reviews for airlines that fly from Portland to United Kingdom with momondo
Airline
Rating
Free Cancellation
Price
IcelandairPriceFrom £439Free CancellationRating
7.0
632 reviews
Search Icelandair flights
British AirwaysPriceFrom £440Free CancellationRating
6.7
7,871 reviews
Search British Airways flights

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Portland to United Kingdom . Millions of users trust and use momondo every year so you are in good hands.

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

All flight searches from Portland to United Kingdom on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Portland to United Kingdom?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Portland to United Kingdom.

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

Of course. momondo tracks the price of Portland to United Kingdom flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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Find better results for your trip to the United Kingdom

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Popular flights according to clicks in the last 7 days on momondo
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