YXU - PDX

C$ 377 Find Cheap Flights from London to Portland

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from London to Portland departing on 30/7. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to Portland

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from London to Portland, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from London to Portland, as well as popular online travel agencies
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Flights Deals

Cheap Flights from London to Portland (YXU-PDX)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from London to Portland that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from London to Portland

Wed, 30 Jul - Wed, 13 Aug
United Airlines Logo
5:45 p.m. - 9:42 a.m.YXU-PDX
18h 57m2 stops
United Airlines Logo
11:20 p.m. - 2:57 p.m.PDX-YXU
12h 37m2 stops
C$ 377United Airlines
Find Deal
Wed, 30 Jul - Wed, 13 Aug
United Airlines Logo
6:15 a.m. - 6:45 p.m.YXU-PDX
15h 30m2 stops
United Airlines Logo
10:55 p.m. - 9:27 p.m.PDX-YXU
19h 32m2 stops
C$ 379United Airlines
Find Deal
Wed, 30 Jul - Wed, 13 Aug
United Airlines Logo
5:45 p.m. - 9:42 a.m.YXU-PDX
18h 57m2 stops
United Airlines Logo
1:37 p.m. - 5:07 p.m.PDX-YXU
24h 30m3 stops
C$ 428United Airlines
Find Deal
Mon, 11 Aug - Mon, 18 Aug
 Logo
9:45 p.m. - 1:05 p.m.YXU-PDX
18h 20m2 stops
 Logo
1:45 p.m. - 5:14 a.m.PDX-YXU
12h 29m1 stop
C$ 535
Find Deal
Mon, 11 Aug - Mon, 18 Aug
WestJet Logo
6:00 a.m. - 1:05 p.m.YXU-PDX
10h 05m1 stop
WestJet Logo
1:45 p.m. - 5:14 a.m.PDX-YXU
12h 29m1 stop
C$ 556WestJet
Find Deal
Wed, 30 Jul - Wed, 13 Aug
 Logo
6:00 a.m. - 1:05 p.m.YXU-PDX
10h 05m1 stop
 Logo
1:25 p.m. - 5:14 a.m.PDX-YXU
12h 49m2 stops
C$ 727
Find Deal
Wed, 30 Jul - Wed, 13 Aug
Delta Logo
6:00 a.m. - 1:05 p.m.YXU-PDX
10h 05m1 stop
Delta Logo
5:45 p.m. - 5:14 a.m.PDX-YXU
8h 29m2 stops
C$ 786Delta
Find Deal
Wed, 30 Jul - Wed, 13 Aug
WestJet Logo
6:00 a.m. - 1:05 p.m.YXU-PDX
10h 05m1 stop
WestJet Logo
1:45 p.m. - 7:09 p.m.PDX-YXU
26h 24m1 stop
C$ 812WestJet
Find Deal
Wed, 30 Jul - Wed, 13 Aug
WestJet Logo
6:00 a.m. - 1:05 p.m.YXU-PDX
10h 05m1 stop
WestJet Logo
1:45 p.m. - 7:09 p.m.PDX-YXU
26h 24m1 stop
C$ 838WestJet
Find Deal
Mon, 11 Aug - Sun, 17 Aug
WestJet Logo
6:00 a.m. - 1:05 p.m.YXU-PDX
10h 05m1 stop
WestJet Logo
12:46 a.m. - 5:14 a.m.PDX-YXU
25h 28m2 stops
C$ 932WestJet
Find Deal
Useful Info

KAYAK's insights & trends for London to Portland flights

Get data-powered insights and trends into flights from London to Portland to help you find the cheapest flights, the best time to fly and much more.

Which airlines provide the cheapest flights from London to Portland?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 72 hours.

In the past 3 days, the cheapest round-trip tickets from London to Portland were found on United Airlines (C$ 377) and WestJet (C$ 556).


Good to know

Cheapest flightC$ 377
Flight from London to Portland

When to book flights from London to Portland

Are your dates flexible? Find out the best times to travel from London to Portland based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from London to Portland

  • What is the cheapest flight from London to Portland?

    In the last 3 days, the lowest price for a flight from London to Portland was C$ 276 for a round-trip ticket.

  • Which aircraft models fly most regularly from London to Portland?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from London to Portland?

    Star Alliance, and SkyTeam are the airline alliances operating flights between London and Portland, with SkyTeam being the most commonly used for this route.

  • How does KAYAK find such low prices on flights from London to Portland?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from London to Portland.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from London to Portland?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Portland from London is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from London to Portland?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Portland with an airline and back to London with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from London to Portland?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Portland from London up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Top airline flying from London to Portland

 
See real verified KAYAK customer reviews for airlines flying from London to Portland. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from London to Portland? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.2
WestJetOverall score based on 2868 reviews
7.4Boarding
7.1Comfort
6.1Entertainment
6.2Food
7.9Crew
Airline reviews

Not the greatest experience everything was pretty mediocre. My seat was by the washroom in the aisle and was not located well as everyone past each other people were right in my seat and space.

2.0 MediocreAnonymous, Jun 2025YYZ - YVR
Read more WestJet reviews

Not the greatest experience everything was pretty mediocre. My seat was by the washroom in the aisle and was not located well as everyone past each other people were right in my seat and space.

The small prop plane was crowded and the overhead luggage storage is a smaller than on the jets. Other than that, the crew was good, the flight was on time and the landing was smooth.

There was a medical emergency that the crew handled very well. There was no “entertainment” of any sort-no movie/music/whatever. Food was typical of airlines: mediocre.

Late departure, so I missed connection in Detroit. But Delta gave me a great hotel & breakfast. Just sorry I could not get anything from my checked baggage.

Crew was friendly. Lost our luggage and told us it’d be in later in the evening of the day we returned. It was not. Still after 5 days have not received it.

Internet on both flights was sketchy. Thus in flight entertainment was non- existent on MN - Balrimote leg.

We never had an experience they canceled the flight and they did not offer us an alternative flight. I had to book one on my own expense. They offered us food voucher and we could not use them at the airport it kept saying not attached to an existing flight. The people at the counter were rude and cold and they did not care about our situation

It took 30 minutes to check in with the Westjet rep. They didn’t have enough seats and she needed to make a call… I am always “randomly” selected to be checked at security. Their “randomly “ selection system may need some updating. They treat people like criminals. It is not appropriate behavior.

Found the seats very crowded—too close together ! And waited a long time for our luggage All staff at both ends were excellent!!!

Flight cancelled and Kayak switched our return flight to a red eye. Ridiculous.

Everything you need to know for your flight from London to Portland

Information on your arrival and departure airports

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