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Cheap flights from Portland to London from £188

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 3/2. 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 return train or bus tickets from Portland to London.

All return flight deals from Portland to London

The cheapest plane tickets from Portland to London found on KAYAK recently.
15:20 - 11:45PDX-LGW
12h 25m1 stop
13:00 - 17:55LGW-PDX
12h 55m1 stop
£406Icelandair
Find Deal
Mon, 5 May - Thu, 15 May
15:20 - 20:20PDX-LHR
21h 00m1 stop
13:05 - 17:55LHR-PDX
12h 50m1 stop
£410Icelandair
Find Deal
Mon, 5 May - Thu, 15 May
17:30 - 10:35PDX-LGW
33h 05m1 stop
12:00 - 09:21LGW-PDX
29h 21m1 stop
Mon, 10 Feb - Tue, 18 Feb
10:16 - 10:35PDX-LGW
16h 19m1 stop
12:00 - 19:31LGW-PDX
15h 31m1 stop
Sun, 16 Feb - Tue, 4 Mar
19:30 - 12:10PDX-LHR
9h 40mdirect
14:20 - 17:35LHR-PDX
10h 15mdirect
£488Iberia
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Tue, 11 Mar - Wed, 19 Mar
19:25 - 13:00PDX-LHR
9h 35mdirect
15:40 - 17:35LHR-PDX
9h 55mdirect
£491Iberia
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Tue, 8 Apr - Wed, 16 Apr
19:30 - 12:10PDX-LHR
9h 40mdirect
14:20 - 17:35LHR-PDX
10h 15mdirect
£514British Airways
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Sun, 9 Mar - Tue, 18 Mar
19:30 - 12:10PDX-LHR
9h 40mdirect
08:20 - 17:40LHR-PDX
16h 20m1 stop
£522British Airways
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Tue, 11 Mar - Tue, 25 Mar
19:30 - 12:10PDX-LHR
9h 40mdirect
14:20 - 17:35LHR-PDX
10h 15mdirect
£525Finnair
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Tue, 11 Mar - Tue, 18 Mar
18:30 - 12:10PDX-LHR
9h 40mdirect
14:20 - 16:35LHR-PDX
10h 15mdirect
£526Finnair
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Sun, 16 Feb - Tue, 4 Mar
17:30 - 10:35PDX-LGW
33h 05m1 stop
Mon, 3 Feb
10:16 - 12:50PDX-LHR
42h 34m2 stops
Sun, 16 Feb
10:10 - 09:20PDX-LHR
15h 10m2 stops
£246Lufthansa
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Tue, 11 Feb
10:10 - 10:10PDX-LHR
16h 00m1 stop
£323Lufthansa
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Sat, 8 Feb
19:25 - 13:00PDX-LHR
9h 35mdirect
£328Iberia
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Sun, 30 Mar
05:31 - 09:00PDX-LHR
19h 29m1 stop
£332Iberia
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Sun, 30 Mar
18:30 - 12:10PDX-LHR
9h 40mdirect
£341American Airlines
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Tue, 11 Feb
18:30 - 12:10PDX-LHR
9h 40mdirect
£353British Airways
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Sun, 16 Feb
19:25 - 13:00PDX-LHR
9h 35mdirect
£361British Airways
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Wed, 30 Apr
19:30 - 12:10PDX-LHR
9h 40mdirect
£366American Airlines
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Sun, 16 Mar
09:45 - 16:00PDX-LHR
22h 15m2 stops
06:40 - 23:29LHR-PDX
24h 49m2 stops
£617Scandinavian Airlines
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Wed, 22 Jan - Wed, 29 Jan
15:39 - 21:40PDX-LHR
22h 01m2 stops
19:50 - 23:20LHR-PDX
35h 30m3 stops
Thu, 23 Jan - Sun, 2 Feb
09:45 - 21:40PDX-LHR
27h 55m2 stops
06:40 - 23:29LHR-PDX
24h 49m2 stops
£625Scandinavian Airlines
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Thu, 23 Jan - Thu, 30 Jan
06:00 - 10:10PDX-LHR
20h 10m1 stop
15:00 - 18:43LHR-PDX
35h 43m2 stops
£639United Airlines
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Tue, 21 Jan - Tue, 28 Jan
12:45 - 10:35PDX-LHR
13h 50m1 stop
06:30 - 11:25LHR-PDX
12h 55m1 stop
£643KLM
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Tue, 21 Jan - Tue, 28 Jan
13:38 - 13:30PDX-LHR
15h 52m2 stops
15:00 - 13:50LHR-PDX
30h 50m2 stops
£646United Airlines
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Tue, 21 Jan - Tue, 28 Jan
18:30 - 12:10PDX-LHR
9h 40mdirect
09:25 - 17:53LHR-PDX
16h 28m1 stop
£692British Airways
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Fri, 24 Jan - Tue, 4 Feb
12:45 - 10:35PDX-LHR
13h 50m1 stop
06:30 - 11:25LHR-PDX
12h 55m1 stop
£724KLM
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Thu, 23 Jan - Sun, 2 Feb
05:31 - 10:50PDX-LCY
21h 19m2 stops
14:45 - 21:50LCY-PDX
39h 05m2 stops
£748British Airways
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Wed, 22 Jan - Tue, 28 Jan
18:30 - 12:10PDX-LHR
9h 40mdirect
12:35 - 23:36LHR-PDX
19h 01m1 stop
£853Finnair
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Tue, 21 Jan - Tue, 28 Jan
19:30 - 12:10PDX-LHR
9h 40mdirect
14:20 - 17:35LHR-PDX
10h 15mdirect
£488Iberia
Find Deal
Tue, 11 Mar - Wed, 19 Mar
19:25 - 13:00PDX-LHR
9h 35mdirect
15:40 - 17:35LHR-PDX
9h 55mdirect
£491Iberia
Find Deal
Tue, 8 Apr - Wed, 16 Apr
19:30 - 12:10PDX-LHR
9h 40mdirect
14:20 - 17:35LHR-PDX
10h 15mdirect
£514British Airways
Find Deal
Sun, 9 Mar - Tue, 18 Mar
19:30 - 12:10PDX-LHR
9h 40mdirect
15:40 - 17:35LHR-PDX
9h 55mdirect
£515British Airways
Find Deal
Tue, 18 Mar - Tue, 15 Apr
19:30 - 12:10PDX-LHR
9h 40mdirect
14:20 - 17:35LHR-PDX
10h 15mdirect
£525Finnair
Find Deal
Tue, 11 Mar - Tue, 18 Mar
18:30 - 12:10PDX-LHR
9h 40mdirect
14:20 - 16:35LHR-PDX
10h 15mdirect
£526Finnair
Find Deal
Sun, 16 Feb - Tue, 4 Mar
18:30 - 12:10PDX-LHR
9h 40mdirect
14:20 - 16:35LHR-PDX
10h 15mdirect
£559American Airlines
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Sun, 16 Feb - Tue, 4 Mar
18:30 - 12:10PDX-LHR
9h 40mdirect
14:20 - 17:35LHR-PDX
10h 15mdirect
£576American Airlines
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Fri, 7 Mar - Tue, 11 Mar
18:30 - 12:10PDX-LHR
9h 40mdirect
14:20 - 16:35LHR-PDX
10h 15mdirect
Sun, 16 Feb - Wed, 19 Feb
19:25 - 13:00PDX-LHR
9h 35mdirect
15:40 - 17:35LHR-PDX
9h 55mdirect
£1,074
Find Deal
Wed, 23 Apr - Thu, 1 May

Virgin Atlantic flights from Portland to London

Our best Virgin Atlantic deals on Portland to London flight tickets
Virgin Atlantic
11 Mar
PDX07:05Portland
17h 10m
1 stop
LHR07:15London Heathrow
18 Mar
LHR06:30London Heathrow
12h 55m
1 stop
PDX12:25Portland
Virgin Atlantic
4 Mar
PDX07:05Portland
20h 05m
1 stop
LHR11:10London Heathrow
11 Mar
LHR06:30London Heathrow
12h 55m
1 stop
PDX12:25Portland
Virgin Atlantic
5 Mar
PDX13:36Portland
13h 34m
1 stop
LHR11:10London Heathrow
12 Mar
LHR15:50London Heathrow
15h 09m
1 stop
PDX23:59Portland

Finnair flights from Portland to London

Our best Finnair deals on Portland to London flight tickets
Finnair
11 Mar
PDX19:30Portland
9h 40m
LHR12:10London Heathrow
18 Mar
LHR14:20London Heathrow
10h 15m
PDX17:35Portland
Finnair
16 Feb
PDX18:30Portland
9h 40m
LHR12:10London Heathrow
4 Mar
LHR14:20London Heathrow
10h 15m
PDX16:35Portland
Finnair
16 Feb
PDX18:30Portland
9h 40m
LHR12:10London Heathrow
4 Mar
LHR14:20London Heathrow
10h 15m
PDX16:35Portland

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 January. Flight prices, which tend to average around £567, are often lower during this time because this is during the off-season. The month of November is another great option to travel to London, with average flight prices from Portland averaging around £571.

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

Our data shows that Tuesday is the least expensive day to fly to London. Tickets to fly out on this day can be as low as £584. 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 £1,589.

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 £698. Flights at midday are often more expensive, with an average ticket price of £757.

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?

You are more likely to see cheaper flights to London from Portland when booking 16 weeks ahead of your departure date. In general, you can expect to find flights to London for around £729 when searching 16 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London from Portland for as low as £700 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.

How have Portland to London flight prices changed over time?

As of January 2025, prices for Portland to London flights are approximately 6% more expensive 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

£188

Fastest flight time

9h 35m

Direct flights

Every day

Airports in London

4 airports
The best one-way flight to London from Portland in the past 72 hours is £188. The best return flight deal from Portland to London found on momondo in the last 72 hours is £406.
The fastest flight from Portland to London takes 9h 35m
Direct flights go from Portland to London every day.
There are 4 airports near London: London City (LCY), London Heathrow (LHR), London Luton (LTN), 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 £479Free CancellationRating
7.1
502 reviews
Search Icelandair flights
Virgin AtlanticPriceFrom £480Free CancellationRating
7.5
665 reviews
Search Virgin Atlantic flights
American AirlinesPriceFrom £525Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
IberiaPriceFrom £550Free CancellationRating
7.0
2,646 reviews
Search Iberia flights
British AirwaysPriceFrom £574Free CancellationRating
6.6
6,834 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 £674, 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 1 flight out of Portland into London in an average week, so prices vary by time and availability. 2,646 Iberia reviews by users on momondo have scored the airline at 7.0/10.


Travelling to a place near London?

Book flights to London if you plan to visit one of these locations
Eastbourne
Milton Keynes
Luton
Slough
Southend-on-Sea
Ipswich
Gatwick
Maidstone
Margate
Hounslow
Canterbury
Ilford
Colchester
Dartford
Winchester
Chichester
Bishop's Stortford
Guildford
Hayes
Crawley

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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Find better results for your trip to the United Kingdom

Fly into one of these airports located in London

Airports listed have a maximum distance of 35.6 mi from London