£207 Find Cheap Flights from Portland to the United Kingdom

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Portland to the United Kingdom departing on 6/5. 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, 0 bags

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Cheap Flights from Portland to the United Kingdom

Cheapest return prices found by our users on KAYAK in the last 72 hours
London
London3 stops£580
Manchester
Manchester2 stops£580
Edinburgh
Edinburgh2 stops£596
Belfast
Belfast2 stops£886
Bristol
Bristol2 stops£818
Aberdeen
Aberdeen1 stop£732
Leeds
Leeds1 stop£855
London
London3 stops£580
Manchester
Manchester2 stops£580
Edinburgh
Edinburgh2 stops£596
Belfast
Belfast2 stops£886
Bristol
Bristol2 stops£818
Aberdeen
Aberdeen1 stop£732
Leeds
Leeds1 stop£855

Book Cheap Portland to the United Kingdom Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Portland to the United Kingdom 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 return flight deals from Portland to the United Kingdom

Tue, 18 Aug - Mon, 24 Aug
Multiple Airlines Logo
15:30 - 16:50
PDX
-
MAN
17h 20m
2 stops
Multiple Airlines Logo
07:45 - 11:45
MAN
-
PDX
36h 00m
2 stops
£580Multiple Airlines
Tue, 26 May - Tue, 2 Jun
Multiple Airlines Logo
15:30 - 08:40
PDX
-
LGW
33h 10m
3 stops
Multiple Airlines Logo
17:50 - 17:55
LGW
-
PDX
32h 05m
2 stops
£580Multiple Airlines
Sat, 5 Sep - Fri, 11 Sep
Condor Logo
15:10 - 14:40
PDX
-
LGW
15h 30m
1 stop
Condor Logo
19:45 - 13:05
LGW
-
PDX
25h 20m
1 stop
£604Condor
Wed, 30 Sep - Wed, 21 Oct
Icelandair Logo
15:30 - 13:25
PDX
-
GLA
13h 55m
1 stop
Icelandair Logo
14:20 - 17:55
GLA
-
PDX
11h 35m
1 stop
£609Icelandair
Wed, 30 Sep - Fri, 23 Oct
Icelandair Logo
15:30 - 13:25
PDX
-
GLA
13h 55m
1 stop
Icelandair Logo
14:20 - 17:55
GLA
-
PDX
11h 35m
1 stop
£610Icelandair
Sat, 19 Sep - Mon, 28 Sep
British Airways Logo
12:32 - 10:15
PDX
-
INV
37h 43m
2 stops
British Airways Logo
15:45 - 17:40
INV
-
PDX
33h 55m
1 stop
£630British Airways
Sat, 19 Sep - Mon, 28 Sep
British Airways Logo
19:30 - 21:35
PDX
-
INV
18h 05m
1 stop
British Airways Logo
15:45 - 17:40
INV
-
PDX
33h 55m
1 stop
£631British Airways
Mon, 24 Aug - Fri, 4 Sep
Condor Logo
15:30 - 14:40
PDX
-
LGW
15h 10m
1 stop
Condor Logo
19:45 - 13:05
LGW
-
PDX
25h 20m
1 stop
£633Condor
Tue, 12 May - Sat, 16 May
Virgin Atlantic Logo
13:05 - 22:30
PDX
-
INV
25h 25m
1 stop
Virgin Atlantic Logo
11:10 - 11:10
INV
-
PDX
32h 00m
1 stop
£668Virgin Atlantic
Mon, 12 Oct - Mon, 19 Oct
Virgin Atlantic Logo
13:05 - 19:45
PDX
-
LCY
22h 40m
1 stop
Virgin Atlantic Logo
17:10 - 11:10
LCY
-
PDX
26h 00m
1 stop
£668Virgin Atlantic
Booking Insights

KAYAK's insights & trends for Portland to the United Kingdom flights

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

What is the cheapest Portland to the United Kingdom flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest ticket to the United Kingdom from Portland found in the last 72 hours was to London, at £718 return. The most popular route is from Portland (PDX) to London Heathrow Airport (LHR), and the cheapest round-trip airline ticket found on this route in the last 72 hours was £718.

What is the cheapest time of day to fly to the United Kingdom?

The average price for all round-trip flights from Portland to the United Kingdom depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.

The cheapest time of day to fly to the United Kingdom is generally in the evening, when retur flights cost £621 on average. Morning departures are around 100% cheaper than evening flights, on average. The most expensive time of day to fly to the United Kingdom is generally at night, which is peak travel time and where the average cost of a ticket is £735.

Can I save money by flying with a stopover from Portland to the United Kingdom?

The average return price for all direct flights, flights with one stopover, and flights with two stopovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of £511, prices are generally cheapest when you fly direct.

What is the cheapest month to fly from Portland to the United Kingdom?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Portland to the United Kingdom, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Portland to the United Kingdom is March, when tickets cost £344 (return) on average. On the other hand, the most expensive months are June and August, when the average cost of return tickets is £2,095 and £966 respectively.

What’s the cheapest day of the week to fly from Portland to United Kingdom?

The average price of all round-trip flights from Portland to the United Kingdom clicked on KAYAK for each day over the last 12 months.

When flying from Portland to United Kingdom, you should consider leaving on a Friday and avoid Thursdays if you are looking for the best rates. For your return to Portland, you’ll find the best rates on Thursdays and the most expensive ones on Sundays.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Portland to the United Kingdom, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below-average price on a flight from Portland to the United Kingdom, you should book around 5 weeks before departure, which saves you about 19% compared to booking last-minute. For the absolute cheapest price, our data suggests you should book 20 weeks before departure.

Good to know - Cheap tickets from Portland to the United Kingdom

Low seasonJanuary
Cheapest flight£198
Best time to beat the crowds (13% less expensive on average)
Most popular time to fly and prices are also 10% lower on average.
Flight from Portland to London Stansted Airport

FAQs - booking United Kingdom flights

  • How does KAYAK find such low prices on flights from Portland to the United Kingdom?

    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 Portland to the United Kingdom.

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

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

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

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly from Portland to the United Kingdom with an airline and back with another airline.

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

    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 from Portland to the United Kingdom up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Top tips for finding a cheap flight from Portland to the United Kingdom

  • Looking for a cheap flight from Portland to the United Kingdom? 25% of our users found tickets from Portland to the United Kingdom for the following prices or less: London £539 one-way - £846 round-trip

Reviews of the top 3 airlines flying from Portland to the United Kingdom

 
Need help choosing which airline to fly with from Portland to the United Kingdom? 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.
7.4
Virgin AtlanticOverall score based on 688 reviews
7.3Comfort
6.9Food
8.1Crew
7.7Boarding
7.5Entertainment
Airline reviews

Seating and zone. The minor I went with didn’t even seat close to me

4.0 OkayAnonymous, Mar 2026
BOS - LIS
Read more Virgin Atlantic reviews

Seating and zone. The minor I went with didn’t even seat close to me

My seat 3G did not go down fully and the buttons were not working properly

Food has been disappointing in both legs of flight to india

Great staff great experience, made a 2 hour delay very bearable

Great staff, great experience, made a 2 hour delay very bearable

Food was the worst I’ve had on a VA flight. Normally it’s a lot better

I was my pleasure to fly virgin on my birthday for my first solo trip ever 🫶🏼

These are one of the older seat arrangements facing away from the windows! Not particularly convenient sets. No storage spaces. NO COAT HANGING HOOKS. Inconvenient business class seat compared to any other airlines of similar class. Staff are excellent! Extremely professional, friendly. Food is good too.

Overall, flight was excellent but check in was very slow for Premium Economy. Economy queue was shorter but we weren't allowed to use it.

The staff was not very polite but the flight was very very nice and comfortable and the entertainment was great

I had no idea that my ticket only paid for my right to get on the plane. They charged me $130 for my carry-on bag because it was 1 inch too big she claimed but it wasn’t! Then they wanted another fee for everything. I had no idea that Icelandair had changed to such a bargain basement airline. I was very disappointed.

Screen didn't work, and neither did the button to tilt the seat even though the seat was comfortable

Second time with Saga Premium, everything was fab, but the entertainment centre on both my flights didn't work, plus the seat on the NY to Rek flight (Airbus) was so solid and so uncomfortable. The 737Max flight's seat was much, much better.

The most uncomfortable seat i’ve ever had on a flight

Waiting area on top of stairs before Boarding the bus wasn’t great. Took a long time to load the bus to gate.

The real reason why the flying experience with Icelandair ---was mediocre was because of not being able to enter DC airspace yesterday evening. This obviously was out of your control and do realize this is a safety issue. I did notice---that everything was being done to get us to Washington Dulles and we did arrive at Dulles SAFELY with just a 4 hour delay. Thank you!

The staff was kind and helpful. There was no food, and you needed to bring your own earphones to use the entertainment, which I didn’t know.

They wouldn’t check in my luggage even though I had one checked bag prepaid. So I took my bag to the gate and tried to check it in there and two employees scolded me for bringing a large bag to the gate. I told them I was trying to check it in and that it was prepaid, and they said they couldn’t guarantee that it would arrive at my destination but they finally let me drop it off when boarding the plane and pick it up right after exiting the plane. There was no food, and there was no entertainment.

The customer service was unbeatable from the wheelchair assist team to the flight attendants. The pilot also did an excellent job managing the turbulence.

Delays at check-in, seemed like they were short ground staff at the time and some passengers needed extra processing.

Boarding was orderly, pilot and flight attendants were nice, entertainment options were good, and low sodium meals were quite tasty.

The whole experience was excellent, O can say out from Miami the best airline to travel with for any European destination. Since the ground staff to the inflight crew attention was great, service on board 10 of 10. Finally the 380 is very confortable and nice to travel.

All crew except 1 were excellent. When I asked assistance with business class seat conversion to a bed (not being familiar as never used before but have numerous times with other airlines) crew member helped very reluctantly. I should have told her that business class seat conversion is totally different in each airline such as Delta, New Zealand Air and United. Sorry it was my 1st time with America Airlines. Now I know, I won't bother asking assistance in future.

The seats in Premier Economy were very comfortable. The food was better than average. The way British Airways handled our seating was atrocious.

Flight delayed, connection was not at gate listed and so missed, staff were rude at Heathrow, phone tree stupid and difficult, took me 21 actual hours to reach my destination. Almost lost my hotel reservation after walking in a strange city alone after midnight because they would not put me up in a hotel at sfo or heathrow. I will never fly BA again and will tell all people and Instagram followers never to fly BA.

Overall ok. Best part has always been the sundae dessert.

I’ve never been on a trans-Atlantic (or Pacific) flight where the seats don’t recline—not even a little. I asked my seat mate when BA starting doing this and he said “Oh, a few years ago.” I couldn’t sleep, with my head falling forward waking me continuously, and came off the plane incredibly stiff. I booked a Premium Economy seat to get a more comfortable seat, which was worse than most basic Economy seats I’ve ever booked.

Nice aircraft. Good crew. Delayed departure from Houston, but arrived on time in London. Main thing I don’t like about flying BA is having to transit through security in London Heathrow. A major pain!

The gate agent made me check my carry-on in Denver, even though I've traveled all over taking this case on the plane. Beware folks. Food in Premium Economy was quite good - excellent blanket! Flight attendants on the Heathrow-to-Budapest flight on 3-27-2026 were quite snappy. I got a frown when asked to unscrew the water bottle cap for me (I had a cast on my right arm). Also woke up right when they were handing out biscuits. She had given my rowmates one and was in the process of giving water when I asked for a biscuit. She scolded me and said, "You snooze, you lose". She did give me one, but I thought that comment was uncalled for.

Wish the food and overall service was better. They treat Business class passengers same as economy

Everything you need to know for your flight from Portland to the United Kingdom

Information on your arrival and departure airports