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Find cheap flights from Portland to the United Kingdom from $271

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 9/24. 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
0 bags
Wed 7/10
Wed 7/17

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Best United Kingdom Flight Deals

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours

London
London1 stop$526
Edinburgh
Edinburgh1 stop$680
Manchester
Manchester2 stops$605
Birmingham
Birmingham2 stops$607
Belfast
Belfast2 stops$658
Inverness
Inverness2 stops$493
Bristol
Bristol2 stops$1,145
Aberdeen
Aberdeen1 stop$590
Leeds
Leeds1 stop$672

Good to know

Low season

January

High season

September

Cheapest flight

$271
Best time to beat the crowds with an average 20% drop in price.
Most popular time to fly and prices are also 15% 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 to the United Kingdom from Portland 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 Portland to the United Kingdom?

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

See more FAQs

Top tips for finding cheap flights to the United Kingdom

  • Looking for a cheap flight? 25% of our users found tickets from Portland to the following destinations at these prices or less: London $694 one-way - $781 round-trip
  • Morning departure is around 6% cheaper than an evening flight, on average*.
*Average of the lowest prices shown in KAYAK’s search results for departures within the next 30 days

Top 5 airlines serving 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.
8.0
DeltaOverall score based on 10295 reviews
8.2Boarding
8.6Crew
7.4Food
8.0Entertainment
7.9Comfort
Airline reviews

3 hours late and all they have is was a $12 meal voucher. That’s not even enough to cover fast food.

2.0 MediocreCraig, Jun 2024CVG - LGA
Read more about Delta reviews

3 hours late and all they have is was a $12 meal voucher. That’s not even enough to cover fast food.

Among the poorest flights I’ve had with Delta in a while. Entertainment system failed completely on a 7.5 hr flight. Crew seemed distracted and not the normal friendly crew. Flight overbooked it seemed… very crowded.

If I can, I always fly Delta. I’ve found their service to always be reliable and pleasant.

You could have not cancelled the flight (AA, which I will be flying from now on) left for BOS despite the fictitious weather issues (that no one in my Boston family could see). You could have rebooked my direct flight to another direct flight instead of sending me though JFK, the worst US airport after O’Hara You could have rebooked me on a Main Cabin seat (like the one I paid for in my original ticket instead of putting me a the last row on JFK->BOS leg, pocketing the difference in ticket price But I do not really care whether you will ever do that in a future because in a future neither I nor anyone from my company (unless they pay out of pocket) nor an of my clients and partners (if they heed my advice) will ever be caught dead on any of Delta flights

Really bad baggage handling. Had my Rimowa bag badly damaged at the latches.

It was pretty good I was worried with the short Layover that I might not catch my connection but the gate was there

It was good until there was a 3 hour delay because there was not any pilots to fly the plane.

There was plenty of overhead room but half of the passengers were told they had to check their carryon bags. My partner and I checked in as early as possible and our seats were split across the aisle.

Friendly flight attendants. Comfort plus seats were very comfortable and had lots of leg room. 10A and 10 B.

I've flown many many times on Northwest and then Delta. The crew on this flight were absolutely the best I've had the pleasure of being looked after by.

Information when booking said the flight would be with American Airlines but the flight was actualy with British Airways. Check in from Orlando was nice and quick. I agreed to put my cabin case in the checked luggage as it was a full flight. Case came back damaged (unable to put the handle down) so will have to dispose of it. Seats were quite cramped with very little leg room, even for economy. This was the experience of both the outgoing and return flight. Cabin crew were ok and flight time was punctual.

Missed this flight due to the first AA flight delay

Missed connection from Philadelphia to London because flight from DC was seriously delayed. Was re-routed the next day (had to pay for hotel) to Zurich and was given a main cabin middle seat while I had paid for premium. Great job AA!!!

Original flight delayed several times and finally canceled at 2:30 in the morning. Staff at the gate was not very helpful in resolving problems or communicating why there were delays. I spent 34 hours at the airport before I could leave, they couldn't book me on another early flight even after canceling my original flight. Next flight available after my original flight was canceled was 22 hours later. I will never fly American Airlines again.

very very tight seats unfriendly crew who do not seem to care about the comfort of their passengers and do not know how to smile poor ground staff support at LHR and PHX

So uncomfortable to sit in the tiny space on a long, international. Food was rough. Please, less white flour and processed food.

Our flight was delayed 2.5 hrs due to plane being too hot! After 1.5 hrs, airline decided to use another plane but had to wait for gate, baggage transfer & beverage transfer. Anyone could tell after first half hour that another plane was required and although did not affect us many would miss connecting flights at Heathrow. I have found the stewards are not the friendliest in the industry and the food is questionable, even as I like airplane food normally, the best of the 2 flights was the yogurt & granola for breakfast.

Terrible boarding , Business class seats are sub standard. As usual crew will miss your food too

Just get Economy Plus for international flights, so worth it the extra room, bigger seats…

Flight boarded without pilots. Sat on plane for 3 hrs. after over an hour late boarding. Plane never took off. Had to deplane near midnight. Line for rebooking was 3 hours + long. I had to leave.

The flight from Amsterdam to Dallas was great, ok food, good service, great entertainment. But Dallas to SF was very tiring because of two hour delay inside the airplane waiting for AA paper work in 99 degrees in the sun. We had no oxygen and the pilot had to ask everyone to blast the AC because it was getting too hot inside the cabin.

We left our child’s tablet on our seat 12 B on the plane and we can’t get a hold of anyone to try to get help locating the tablet.

My flight was cancelled after a 7 hour delay. I am awaiting a refund.

Ability to select seating would be nice. We were family of three and they had us seated back to back and one of us on the other side of the plane??? That is pretty goofy. Especially when tickets were placed two months in advance.

We had a seat that would not function. No Wifi or inflight entertainment was available. Food was very poor. Attendants were very accommodating and apologized for the problems.

My son and I are 193 cm tall. We had reserved and paid for seats with extra leg room towards the front of the cabin. The day of the flight, we learned that Iberia had changed aircraft. We were assigned regular seats way back in the cabin. When we landed from our first leg we spoke with agents at the gate and we were told that they couldn’t improve our seats because the flight was full.

I am quite satisfied. The flight was on time and landed early. Staff was friendly.

Needed more info on connecting flight. Late flight made very short connection. Lost luggage that we still do not have!

Seats comfortable on economy plus and attendants very helpful. Food was ok. Bathrooms needed servicing.

Good food, prompt and timely flight, good on-board personnel

My experience with Icelandair was just ok, nothing special. Requested wheelchair service for my wife and none was offered at checking in Baltimore or available for her upon arrival at Gatwick airport in London.

Decent service - nice seats. Crew were not overly attentive but can’t complain overall for the money

Very nice flight, easy connections in Keflavík, and friendly crew.

I will never fly this airline again. Checking in was poor , we had to go back to the check in counter at Raleigh - Durham international airport three times because they didn’t issue my boarding pass but rather duplicated my husband’s twice which caused a big headache at the passport control at the airport which triggered security alert and wouldn’t let us pass through we we had to wait for long time to be able to explain and clear everything after talking to the supervisor.. No food on the plane , not even crackers. No food was offered to buy ether . No ear phone was provided . Very little time to make from one plane to another and nobody to assist with smooth transition. Flight itself , we felt safe so thank you to the pilots . But customer service was terrible . We spent $ 2500 on 2 tickets, so I cannot say that service was consistent with the price .

Seats are way too much now with these new airplanes especially long flights like we had. I was 7 month pregnant and in a lot of discomfort due to small seats.

Food was horrible. This wasn’t business class. No leg space, can’t sleep in row position, huge delay

I liked how easy my transfers between flights in Keflavik were. I would have appreciated more food options in Keflavik.

The plane was flaming hot! Could not breathe. Everyone coughing from heat. Awful.

My biggest problem was the flight from KEF to DUB was delayed, which caused me to miss my connecting flight in DUB and we were forced into an unplanned 10-hour layover in DUB. Crew and boarding staff were all very friendly but this was a real inconvenience and especially uncomfortable for my disabled wife.

Not much! This was my first flight with Iceland air and unfortunately it wasn’t what I have expected. My luggage is lost nothing as of yet where it was left. Not a good service at all!!

Economy class has no legroom so if you have the money worth to upgrade! Food was absolutely horrible! The crew was super nice!!!!!

The flight was provided by Aer Lingus and our seats were in a poor condition (15A & 15C). They looked like they needed repairing/replacing and were uncomfortable for such a long flight. Also the arm rests on Aer Lingus planes do not lift more than around 45 degrees, instead of the usual 90 degrees upright, meaning you cannot maximum the space between you & your travel companion so as to be more comfortable for such a long flight.

Very bed boarding, there was overbooked and make a lot of problems and noises

On my way from Chicago to London, I was seated next to a quite heavy passenger. I could barely move. BA should have ensured that overweight customers are placed in comfortable seats and not to penalize also other passengers because BA is not willing to accommodate these passengers and their needs. No respect at all.

The flight as far as timings go was excellent. Unfortunately we ended up sat with someone on a night flight who had been drinking alcohol before boarding and BA staff were happily serving him more alcohol. He was very drunk which made our flight uncomfortable and awkward. My partner had this person lying on him whilst asleep. Alcohol should be served minimally. If there had been an emergency this person would not have been in a fit state to act accordingly.

First time flying with BA and I will do it again. Staff at airport and on board were very nice and helpful

Wonderful service and very comfy in the bulkhead in Economy Plus! Delicious food.

The BA team at Sky Harbor is deplorable, full of unnecessary attitude and poor communication. It seems like every member of the team was looking at another to solve the problem, instead of taking agency to do so themselves. I saw no less than 6 altercations with the same gate agent where he threatened to revoke the passengers boarding pass for asking a wildly reasonable question, something as simple as where the cue to board was. I’ve complained to BA before but it seems this isn’t an issue for them, which is very disappointing

Boarding poor in London,ok in Chicago. Don’t like Heatrow/terminal5

It was very good. We got a late start by about an hour and a half. However I worked rather have that than crash. It was purely mechanical. They had our tickets ready when we came off the plane in London for the next leg. The only mishap was when we got to Lisbon my husbands luggage made or bit mine didn't. All was not lost because I did finally get it 2 days later. I was really pleased that they c made the effort.

Book cheap flights from Portland to the United Kingdom

Recent round-trip flight deals

10/2Wed
1 stopIcelandair
21h 00mPDX-LHR
10/16Wed
1 stopIcelandair
28h 30mLHR-PDX
$526
10/23Wed
1 stopIcelandair
12h 25mPDX-LGW
11/1Fri
1 stopIcelandair
12h 50mLGW-PDX
$535
10/2Wed
1 stopDelta
19h 05mPDX-LGW
10/10Thu
1 stopDelta
18h 44mLGW-PDX
$578
10/2Wed
1 stopDelta
19h 05mPDX-LGW
10/10Thu
2 stopsDelta
17h 42mLGW-PDX
$582
10/2Wed
1 stopBritish Airways
12h 42mPDX-LHR
10/16Wed
nonstopBritish Airways
9h 55mLHR-PDX
$604
11/25Mon
2 stopsAmerican Airlines
22h 39mPDX-MAN
11/27Wed
1 stopAmerican Airlines
18h 10mMAN-PDX
$605
10/14Mon
1 stopBritish Airways
12h 00mPDX-MAN
10/21Mon
1 stopBritish Airways
29h 45mMAN-PDX
$606
10/14Mon
2 stopsAmerican Airlines
20h 20mPDX-MAN
10/21Mon
1 stopAmerican Airlines
14h 15mMAN-PDX
$631
10/2Wed
nonstopIberia
9h 30mPDX-LHR
10/16Wed
nonstopIberia
9h 55mLHR-PDX
$638
11/26Tue
1 stopIberia
15h 24mPDX-LHR
12/4Wed
nonstopIberia
10h 10mLHR-PDX
$715

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Recent one-way flight deals

9/24Tue
3 stops
34h 28mPDX-STN
$271
9/24Tue
3 stops
35h 38mPDX-LTN
$290
10/13Sun
1 stopDelta
22h 25mPDX-LHR
$439
10/14Mon
nonstopIberia
9h 30mPDX-LHR
$456
10/30Wed
nonstopAmerican Airlines
9h 40mPDX-LHR
$470
10/18Fri
1 stopDelta
19h 05mPDX-LGW
$489
8/4Sun
2 stopsBritish Airways
28h 56mPDX-MAN
$520
10/18Fri
nonstopIberia
9h 30mPDX-LHR
$557
7/28Sun
2 stopsAmerican Airlines
29h 41mPDX-GLA
$561
8/8Thu
1 stopBritish Airways
13h 50mPDX-GLA
$612

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Last minute flights from Portland to the United Kingdom

Last minute flight, train and bus deals

6/11Tue
multi-stopSWISS
32h 52mPDX-EDI
6/17Mon
multi-stopSWISS
34h 46mEDI-PDX
$1,007
6/11Tue
multi-stopAir Canada
16h 50mPDX-EDI
6/17Mon
multi-stopAir Canada
21h 39mEDI-PDX
$1,009
6/13Thu
multi-stopDelta
19h 50mPDX-EDI
7/4Thu
multi-stopDelta
18h 16mEDI-PDX
$1,272
6/13Thu
multi-stopDelta
19h 50mPDX-EDI
7/9Tue
multi-stopDelta
18h 17mEDI-PDX
$1,277
6/15Sat
multi-stopAmerican Airlines
29h 14mPDX-LHR
6/30Sun
multi-stopAmerican Airlines
19h 27mLHR-PDX
$1,406
6/15Sat
multi-stopAmerican Airlines
25h 46mPDX-LHR
6/23Sun
multi-stopAmerican Airlines
19h 45mLHR-PDX
$1,464
6/15Sat
multi-stopBritish Airways
27h 06mPDX-LHR
6/23Sun
multi-stopBritish Airways
34h 13mLHR-PDX
$2,023
6/15Sat
multi-stopBritish Airways
13h 30mPDX-EDI
7/5Fri
multi-stopBritish Airways
13h 45mEDI-PDX
$3,304
6/14Fri
nonstopIberia
9h 30mPDX-LHR
2/8Sat
multi-stopIberia
16h 53mLHR-PDX
$4,014
6/14Fri
multi-stopIberia
17h 00mPDX-LHR
6/27Thu
nonstopIberia
9h 55mLHR-PDX
$4,414

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Portland - United Kingdom Flights

Departure:

Portland (PDX)United States

Return flight deals:

United Kingdom - Portland

Cabin classes:

$1,129
$1,427
$1,657
$518