$324 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 8/19. 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 round-trip prices found by our users on KAYAK in the last 72 hours
London
London1 stop$759
Edinburgh
Edinburgh1 stop$865
Manchester
Manchester2 stops$894
London
London1 stop$759
Edinburgh
Edinburgh1 stop$865
Manchester
Manchester2 stops$894

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 round-trip 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 round-trip flight deals from Portland to the United Kingdom

Wed, Nov 11 - Fri, Nov 13
United Airlines Logo
3:15 pm - 10:25 am
PWM
-
LHR
14h 10m
1 stop
United Airlines Logo
6:50 am - 6:13 pm
LHR
-
PWM
16h 23m
2 stops
$759United Airlines
Wed, Nov 11 - Fri, Nov 13
United Airlines Logo
2:45 pm - 9:10 am
PWM
-
LHR
13h 25m
2 stops
United Airlines Logo
6:50 am - 4:09 pm
LHR
-
PWM
14h 19m
2 stops
$828United Airlines
Wed, Nov 11 - Fri, Nov 13
United Airlines Logo
2:45 pm - 9:10 am
PWM
-
LHR
13h 25m
2 stops
United Airlines Logo
6:50 am - 4:09 pm
LHR
-
PWM
14h 19m
2 stops
$829United Airlines
Tue, Nov 10 - Tue, Nov 17
Scandinavian Airlines Logo
2:35 pm - 9:20 am
PWM
-
LHR
13h 45m
2 stops
Scandinavian Airlines Logo
7:30 pm - 11:49 pm
LHR
-
PWM
33h 19m
2 stops
$831Scandinavian Airlines
Mon, Sep 14 - Tue, Sep 22
KLM Logo
2:35 pm - 9:20 am
PWM
-
EDI
13h 45m
1 stop
KLM Logo
2:05 pm - 11:59 pm
EDI
-
PWM
14h 54m
1 stop
$865KLM
Tue, Nov 10 - Tue, Nov 17
Delta Logo
6:30 am - 6:20 am
PWM
-
LHR
18h 50m
1 stop
Delta Logo
6:30 am - 10:23 pm
LHR
-
PWM
20h 53m
2 stops
$866Delta
Tue, Nov 10 - Tue, Nov 17
Delta Logo
1:35 pm - 9:00 am
PWM
-
LHR
14h 25m
1 stop
Delta Logo
6:30 am - 11:49 pm
LHR
-
PWM
22h 19m
2 stops
$867Delta
Mon, Sep 14 - Tue, Sep 22
KLM Logo
2:35 pm - 9:20 am
PWM
-
EDI
13h 45m
1 stop
KLM Logo
2:05 pm - 11:59 pm
EDI
-
PWM
14h 54m
1 stop
$867KLM
Mon, Sep 14 - Tue, Sep 22
American Airlines Logo
8:01 am - 7:30 am
PWM
-
EDI
18h 29m
1 stop
American Airlines Logo
11:25 am - 11:51 pm
EDI
-
PWM
17h 26m
1 stop
$871American Airlines
Wed, Oct 28 - Wed, Nov 4
American Airlines Logo
2:55 pm - 10:55 am
PWM
-
MAN
16h 00m
2 stops
American Airlines Logo
9:50 am - 10:47 pm
MAN
-
PWM
17h 57m
2 stops
$894American Airlines
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 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 January, when tickets cost $0 (return) on average. On the other hand, the most expensive months are June and November, when the average cost of round-trip tickets is $986 and $850 respectively.

Good to know

Cheapest flight$324
Flight from Portland to Edinburgh

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 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 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.

Reviews of the top 4 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.
7.9
DeltaOverall score based on 8452 reviews
7.2Food
7.8Comfort
7.8Entertainment
8.1Boarding
8.5Crew
Airline reviews

I continue to be satisfied with Delta’s excellent service out of LGA. The digit id works well and gets me through security in no time. Whenever possible, I choose Delta.

10.0 Excellentangela, May 2026
LGA - PBI
Read more Delta reviews

I continue to be satisfied with Delta’s excellent service out of LGA. The digit id works well and gets me through security in no time. Whenever possible, I choose Delta.

Was revoked with Jet Blue due to delay from Kenya Air

The Boarding process was great. Particularly since my wife and I require assistance. The flight attendants were amazing. We travel frequently; they honestly were a cut above. 😀

Enjoyed it very much. Especially liked the free WiFi that Delta offers.

Smooth flight. Left on time, and got in 15 minutes early. Onboard video was great

For some reason, TSA Atlanta didn’t have my bag on the flight on time and they don’t have to provide Delta a reason for that.

WiFi didn’t work on two of four planes. Flight attendants were not overly friendly or welcoming. Planes were extremely slow to board and deplane.

Delta does a great job with entertainment and free wifi. I can still be in touch with my colleagues while in the air.

Aside from a completely packed plane, I really have no complaints.

Bus to plane was delayed for no apparent reason and our luggage was still on the belt when they shut it off. Took about 20 minutes to turn it back on to get our luggage.

As per usual when you Hit the UK it's a slow process through customs Not as efficient at Thailand for sure

There were no charge points for phones on the economy seats. The seats were comfortable overall. Food was okay.. flight was on time

The flight was delayed. The aircraft was unclean. Promised seat was not given due to change in Aircraft. Not one crew on ground was in a position to give any response. Amsterdam Airport is AVIODABLE Over crowded. Over Expensive. Poor Services.

The crew were unprofessional with a racist element. I was physically abused as well from one of the crew members

Crew is not the cheerful type. very slow meal service (this is their style as have flown this many times)

Empty seats next to me - wish it had been for a longer flight!!

Terrible last row seats many seats available but no offer to move to better seat

Delay and had to run between flight to get my connection due to this delay but besides that the overall experience was ok. I arrived with just an hour of delay.

They forgot to serve food and the crew was very unfriendly. Never experienced such a bad KLM flight. Usually fly from Toronto. New York was different.

The immigration hall in Amsterdam was understaffed, so passport checking was slower than it should be for a major airport. They need to get the automatic readers up and running for non EU passport holders. Waiting in line after a long flight feels a bit abusive.

We had a delay, but thankfully I made it to my connection. Overall it went smooth

The flight had a delay but I made it to my connection. Flight was smooth overall

As I wrote earlier, poor planning and/or communication. At least twice, we were told that we would be boarding in less than ten minutes, only to have the flight again delayed at least another hour.

This flight is a quick way to get to Chicago, but a bit expensive.

Very comfortable seating and the Flight staff were very attentive. The premium economy section that I was seated in was very clean, updated, and well appointed. I would highly recommend flying United Airlines as this experience was better than the Japan Airlines business class that I flew several months ago.

Our flight was canceled same day and we were never informed. Had to pay more and worse seating on another airline.

Our flight to Rome, Italy was cancelled the day of and we were never informed. We only found out because I was trying to get into my husbands account and called to get his account number. Had to pay more for worse seating on another airline.

My service dog and I were asked to deplane just before they closed the door - clearly very last minute they couldn’t find the documentation that I have filled out many many times before that is for flying service animals. I purposely purchase 3seats (a whole row) since he is large and not all passengers want to sit next to a dog on a cross country flight. The plane departed with my husband on it!!! They made me fill out a hard copy of the same form and had to reschedule me on a later flight where they could find 3 seats together!! I’ve done this so many times before - clearly the error was on their part in a technology glitch - but really people - do better!! Very traumatic - and my husband had to wait for us when he landed ….so bad. Poor pup was confused and tired.

First class ticket gets you no seat back entertainment? I have to bring my own laptop to see a movie? And most of their movies have ADS? No thank you. Worse: Tiny snacks only on a 2 hr flight?

Late- that’s what United does best. Missed my connection, rebooked to a flight 17 hours later and had to spend $500 on a hotel. What did I get? A $15 meal voucher. What can you get in an airport for $15. I hate United so much.

Premium Economy Good crew, good service, excellent food. Seat back screen just not bright enough.

Flight was delayed an no one cares, or try to help passengers to get the conexión.

Our flight was cancelled while we are on our way to the airport. So, no notice. We were rescheduled to another airline with a 2 hour later takeoff and so arrived at our destination on time. We pre-paid American Airlines $190 to upgrade our seats. No refund. So no use for AA or Kayak.

Terrible, horrible, disappointing- without telling us they changed planes and moved and separated our seats to opposite sides - said they changed seats putting us together - got to airport to find no, they did not - we sat opposing sides of plane - food overly salty to inedible, never saw stewardess but once - it was terrible

The business class layout of chairs was weired. You are sitting directly across stranger.,

We did not have enough time to make our connecting flight. As a result, we were put onto a different airline for our second leg. The different airline was NOT comparable to British Airlines, and our arrival was significantly delayed. The actual flight on BA was amazing.

Tv screens and movie selection v good. Friendly staff. They were really worried about max capacity and room for carryons. That is never fun but i had no problem finding space when I boarded.

My flight to London from Philadelphia was cancelled due to weather.

Disliked having to wait a little longer to disembark from the plan when we landed in London

Food should be better quality. Video screens have poor resolution and the library of movies is poor. The other airlines are much better.

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

Information on your arrival and departure airports