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Cheap flights from Portland to London from £173

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 London departing on 13/1. 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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Find the cheapest flights from Portland to London

Cheap return flights

These are some of the best return flight deals from Portland to London that have been recently found on momondo from popular airlines, departing in the coming months.

Cheap one-way flights

Flying one-way? These are some of the best deals recently discovered on momondo for flights from Portland to London.

Cheap last-minute flights

Planning a quick getaway from Portland to London? These are the last-minute flight deals available now.

Cheap direct flights

If you prefer a non-stop journey, check out our latest direct flight deals to London, so you can enjoy a seamless trip without stopovers.

Cheap bus & train deals from Portland to London

Find recent round-trip train or bus tickets from Portland to London.

All round-trip flight deals to London

The cheapest plane tickets to London found on KAYAK recently.
10:16 - 10:35PDX-LGW
16h 19m1 stop
09:50 - 13:07LGW-PDX
35h 17m2 stops
Sun, 23 Feb - Sun, 4 May
15:20 - 11:45PDX-LGW
12h 25m1 stop
15:40 - 17:55LGW-PDX
34h 15m1 stop
£482Icelandair
Find Deal
Wed, 30 Apr - Tue, 6 May
15:25 - 10:10PDX-LHR
34h 45m1 stop
13:25 - 09:34LHR-PDX
28h 09m2 stops
£515Air Canada
Find Deal
Sun, 12 Jan - Tue, 28 Jan
10:10 - 10:10PDX-LHR
16h 00m1 stop
13:00 - 18:24LHR-PDX
13h 24m1 stop
£517Air Canada
Find Deal
Sun, 12 Jan - Tue, 28 Jan
18:30 - 12:10PDX-LHR
9h 40mdirect
14:20 - 17:35LHR-PDX
10h 15mdirect
£522British Airways
Find Deal
Tue, 4 Mar - Tue, 11 Mar
07:35 - 07:20PDX-LHR
15h 45m1 stop
14:20 - 16:35LHR-PDX
10h 15mdirect
£526Iberia
Find Deal
Mon, 17 Feb - Fri, 7 Mar
14:00 - 12:05PDX-LHR
15h 05m1 stop
15:40 - 17:35LHR-PDX
9h 55mdirect
£528British Airways
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Tue, 18 Mar - Tue, 15 Apr
19:25 - 13:00PDX-LHR
9h 35mdirect
15:40 - 17:35LHR-PDX
9h 55mdirect
£538Finnair
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Tue, 15 Apr - Tue, 22 Apr
14:14 - 12:04PDX-LHR
13h 50m1 stop
07:00 - 21:44LHR-PDX
22h 44m2 stops
£542Iberia
Find Deal
Sun, 16 Feb - Tue, 25 Feb
07:35 - 06:20PDX-LHR
14h 45m1 stop
14:20 - 16:35LHR-PDX
10h 15mdirect
£579Finnair
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Sun, 16 Feb - Sun, 23 Feb
11:19 - 12:50PDX-LHR
41h 31m2 stops
Mon, 13 Jan
17:30 - 12:50PDX-LHR
59h 20m2 stops
Thu, 23 Jan
15:20 - 11:55PDX-LHR
12h 35m1 stop
£284Icelandair
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Fri, 2 May
15:20 - 11:45PDX-LGW
12h 25m1 stop
£284Icelandair
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Fri, 2 May
19:25 - 13:00PDX-LHR
9h 35mdirect
£330Finnair
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Sun, 30 Mar
12:00 - 06:20PDX-LHR
34h 20m1 stop
£335Iberia
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Sat, 18 Jan
12:08 - 18:50PDX-LGW
23h 42m2 stops
£365Iberia
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Mon, 10 Mar
05:31 - 10:15PDX-LGW
44h 44m2 stops
£368British Airways
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Sun, 26 Jan
07:35 - 10:50PDX-LCY
19h 15m2 stops
£394British Airways
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Sun, 26 Jan
19:25 - 13:00PDX-LHR
9h 35mdirect
£1,342Finnair
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Sun, 20 Apr
10:46 - 10:35PDX-LGW
15h 49m1 stop
12:00 - 23:34LGW-PDX
19h 34m1 stop
Thu, 19 Dec - Sun, 22 Dec
16:31 - 21:00PDX-LHR
20h 29m2 stops
10:00 - 22:33LHR-PDX
20h 33m2 stops
£1,331
Find Deal
Sun, 22 Dec - Fri, 10 Jan
23:59 - 14:35PDX-LHR
30h 36m3 stops
14:50 - 18:24LHR-PDX
35h 34m3 stops
£1,408
Find Deal
Sun, 22 Dec - Fri, 10 Jan
10:10 - 10:10PDX-LHR
16h 00m1 stop
13:00 - 18:24LHR-PDX
13h 24m1 stop
£1,426Air Canada
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Sun, 22 Dec - Fri, 10 Jan
19:05 - 10:10PDX-LHR
31h 05m1 stop
13:00 - 22:09LHR-PDX
17h 09m1 stop
£1,566Air Canada
Find Deal
Mon, 23 Dec - Thu, 2 Jan
18:30 - 12:10PDX-LHR
9h 40mdirect
14:20 - 16:35LHR-PDX
10h 15mdirect
£1,801Iberia
Find Deal
Sun, 22 Dec - Fri, 10 Jan
23:59 - 10:50PDX-LCY
26h 51m2 stops
17:00 - 21:50LCY-PDX
36h 50m2 stops
£1,806British Airways
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Sun, 22 Dec - Fri, 10 Jan
00:59 - 12:15PDX-LHR
27h 16m2 stops
13:50 - 22:57LHR-PDX
17h 07m1 stop
£2,034British Airways
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Fri, 20 Dec - Sat, 28 Dec
05:40 - 08:25PDX-LHR
42h 45m2 stops
08:20 - 21:15LHR-PDX
20h 55m1 stop
£2,356Iberia
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Thu, 19 Dec - Sun, 22 Dec
18:30 - 12:10PDX-LHR
9h 40mdirect
12:10 - 21:42LHR-PDX
17h 32m1 stop
£4,413Finnair
Find Deal
Fri, 20 Dec - Sat, 28 Dec
19:25 - 13:00PDX-LHR
9h 35mdirect
15:40 - 17:35LHR-PDX
9h 55mdirect
£517British Airways
Find Deal
Mon, 21 Apr - Thu, 8 May
18:30 - 12:10PDX-LHR
9h 40mdirect
14:20 - 17:35LHR-PDX
10h 15mdirect
£522British Airways
Find Deal
Tue, 4 Mar - Tue, 11 Mar
19:25 - 13:00PDX-LHR
9h 35mdirect
15:40 - 17:35LHR-PDX
9h 55mdirect
£524Iberia
Find Deal
Sun, 30 Mar - Thu, 10 Apr
19:25 - 13:00PDX-LHR
9h 35mdirect
15:40 - 17:35LHR-PDX
9h 55mdirect
£525Iberia
Find Deal
Sun, 27 Apr - Tue, 6 May
19:25 - 13:00PDX-LHR
9h 35mdirect
15:40 - 17:35LHR-PDX
9h 55mdirect
£533British Airways
Find Deal
Sun, 4 May - Thu, 22 May
18:30 - 12:10PDX-LHR
9h 40mdirect
14:20 - 16:35LHR-PDX
10h 15mdirect
£536Finnair
Find Deal
Sun, 16 Feb - Tue, 25 Feb
19:25 - 13:00PDX-LHR
9h 35mdirect
15:40 - 17:35LHR-PDX
9h 55mdirect
£538Finnair
Find Deal
Tue, 15 Apr - Tue, 22 Apr
18:30 - 12:10PDX-LHR
9h 40mdirect
14:20 - 16:35LHR-PDX
10h 15mdirect
£543American Airlines
Find Deal
Tue, 14 Jan - Tue, 21 Jan
18:30 - 12:10PDX-LHR
9h 40mdirect
14:20 - 17:35LHR-PDX
10h 15mdirect
£584American Airlines
Find Deal
Sun, 2 Mar - Sun, 16 Mar
18:30 - 12:10PDX-LHR
9h 40mdirect
14:20 - 16:35LHR-PDX
10h 15mdirect
£701Alaska Airlines
Find Deal
Sun, 26 Jan - Tue, 11 Feb

Virgin Atlantic flights from Portland to London

Our best Virgin Atlantic deals on Portland to London flight tickets
Virgin Atlantic
26 Jan
PDX06:05Portland
17h 00m
1 stop
LHR07:05London Heathrow
11 Feb
LHR06:30London Heathrow
12h 55m
1 stop
PDX11:25Portland
Virgin Atlantic
16 Mar
PDX17:09Portland
20h 01m
2 stops
LHR20:10London Heathrow
24 Mar
LHR20:25London Heathrow
28h 54m
2 stops
PDX18:19Portland
Virgin Atlantic
19 Jan
PDX17:15Portland
11h 25m
1 stop
LHR12:40London Heathrow
26 Jan
LHR06:30London Heathrow
12h 55m
1 stop
PDX11:25Portland

Iberia flights from Portland to London

Our best Iberia deals on Portland to London flight tickets
Iberia
17 Feb
PDX07:35Portland
15h 45m
1 stop
LHR07:20London Heathrow
7 Mar
LHR14:20London Heathrow
10h 15m
PDX16:35Portland
Iberia
16 Feb
PDX14:14Portland
13h 50m
1 stop
LHR12:04London Heathrow
25 Feb
LHR07:00London Heathrow
22h 44m
2 stops
PDX21:44Portland
Iberia
28 Apr
PDX08:01Portland
14h 24m
1 stop
LHR06:25London Heathrow
13 May
LHR15:40London Heathrow
9h 55m
PDX17:35Portland

See travel insights to London from

How to get the cheapest flight ticket from Portland to London

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 London?

The cheapest month to fly to London from Portland is in November. Flight prices, which tend to average around £547, are often lower during this time because this is during the off-season. The month of October is another great option to travel to London, with average flight prices from Portland averaging around £562.

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

Our data shows that Wednesday is the least expensive day to fly to London. Tickets to fly out on this day can be as low as £576. When flying out on a Saturday, the most expensive travel day of the week, you can expect to see flight prices from Portland to London for around £854.

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

The cheapest time of day to fly to London is in the afternoon when flights can be purchased for as low as £674. Flights at midday are often more expensive, with an average ticket price of £731.

What is the cheapest Portland to London flight route?

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

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

In general, most travellers find the cheapest time to book a flight to London is about 49 days prior to their departure date, when tickets on average are £709. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London from Portland for as low as £465 on momondo.

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

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

You could potentially save up to 47% on your flight if you consider stops on a Portland to London flight.

How have Portland to London flight prices changed over time?

As of December 2024, prices for Portland to London flights are approximately 26% cheaper when compared to flights at the same time last year.

When to book flights from Portland to London

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

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

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

Best price found

£173

Fastest flight time

9h 30m

Direct flights

Every day

Airports in London

5 airports
The best one-way flight to London from Portland in the past 72 hours is £173. The best return flight deal from Portland to London found on momondo in the last 72 hours is £474.
The fastest flight from Portland to London takes 9h 30m
Direct flights go from Portland to London every day.
There are 5 airports near London: London City (LCY), London Heathrow (LHR), London Luton (LTN), London Stansted (STN), London Gatwick (LGW)

  • How far is Portland to London by plane?

    The straight-line distance from Portland to London is 4909.8 mi. A reasonable flight in good conditions will take 9h 35m.

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

    Prices for flights from Portland Airport to London refresh daily.

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

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

    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 London.

  • What documentation or ID do you need to fly to London?

    The necessary travel and health documents for your London trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

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

  • What is the most popular airline from Portland to London?


Best airlines flying from Portland to London

Compare and see reviews for airlines that fly from Portland to London with momondo
Airline
Rating
Free Cancellation
Price
IcelandairPriceFrom £463Free CancellationRating
7.1
509 reviews
Search Icelandair flights
Virgin AtlanticPriceFrom £464Free CancellationRating
7.5
668 reviews
Search Virgin Atlantic flights
American AirlinesPriceFrom £507Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
IberiaPriceFrom £549Free CancellationRating
7.0
2,655 reviews
Search Iberia flights
British AirwaysPriceFrom £554Free CancellationRating
6.6
6,817 reviews
Search British Airways flights
  • American Airlines Flights From Portland to London

    American Airlines is one of the most popular airlines flying from Portland to London, operating 4 flights/week on average for this route. A good American Airlines flight deal for Portland to London starts from £642 round-trip, up to an average price of £942. Our users have rated American Airlines at 7.2/10.

  • Iberia Flights From Portland to London

    The best Iberia deal for Portland to London flight tickets found on momondo in the last 72 hours was £696, round-trip. It should be noted that an average Iberia flight deal for this route in this time was higher, at £1,055 round-trip. Iberia operates 2 flights out of Portland into London in an average week, so prices vary by time and availability. 2,655 Iberia reviews by users on momondo have scored the airline at 7.0/10.


Why use momondo?

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

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 London from Portland.

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

Flights from Portland to London with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

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 London.

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

Yes momondo offers price alerts on flights to London from Portland. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.


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Fly into one of these airports located in London

Airports listed have a maximum distance of 35.6 mi from London