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Cheap flights from Portland to the United Kingdom from $271

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 the United Kingdom departing on 11/3. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Portland to the United Kingdom

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
3:30 pm - 12:25 am
PDX
-
EDI
24h 55m
3 stops
Multiple Airlines Logo
8:00 pm - 7:10 pm
EDI
-
PDX
31h 10m
3 stops
$753Multiple Airlines
Sun, Jun 7 - Sat, Jun 13
Icelandair Logo
7:05 pm - 11:40 am
PDX
-
MAN
32h 35m
1 stop
Icelandair Logo
1:05 pm - 5:55 pm
MAN
-
PDX
12h 50m
1 stop
$837Icelandair
Wed, Aug 19 - Wed, Aug 26
United Airlines Logo
10:56 am - 10:10 am
PDX
-
GLA
15h 14m
1 stop
United Airlines Logo
2:00 pm - 9:59 pm
GLA
-
PDX
15h 59m
1 stop
$902United Airlines
Mon, Aug 17 - Thu, Aug 20
American Airlines Logo
7:30 pm - 7:40 pm
PDX
-
GLA
16h 10m
1 stop
American Airlines Logo
7:00 am - 6:59 pm
GLA
-
PDX
19h 59m
2 stops
$903American Airlines
Mon, Aug 17 - Thu, Aug 20
American Airlines Logo
7:30 pm - 7:40 pm
PDX
-
GLA
16h 10m
1 stop
American Airlines Logo
7:00 am - 5:21 pm
GLA
-
PDX
18h 21m
2 stops
$904American Airlines
Mon, Aug 17 - Thu, Aug 20
Delta Logo
7:00 am - 8:25 am
PDX
-
GLA
17h 25m
2 stops
Delta Logo
6:00 am - 11:10 am
GLA
-
PDX
13h 10m
1 stop
$906Delta
Wed, Sep 16 - Wed, Sep 30
United Airlines Logo
8:25 am - 10:10 am
PDX
-
GLA
17h 45m
2 stops
United Airlines Logo
2:00 pm - 11:40 pm
GLA
-
PDX
17h 40m
2 stops
$907United Airlines
Mon, Aug 17 - Thu, Aug 20
British Airways Logo
7:30 pm - 10:30 pm
PDX
-
MAN
19h 00m
1 stop
British Airways Logo
10:50 am - 5:40 pm
MAN
-
PDX
14h 50m
1 stop
$908British Airways
Mon, Aug 24 - Thu, Sep 3
British Airways Logo
7:30 pm - 10:30 pm
PDX
-
MAN
19h 00m
1 stop
British Airways Logo
8:50 am - 5:40 pm
MAN
-
PDX
16h 50m
1 stop
$909British Airways
Mon, Aug 24 - Thu, Sep 3
Delta Logo
7:00 am - 10:00 am
PDX
-
MAN
19h 00m
2 stops
Delta Logo
5:55 am - 11:10 am
MAN
-
PDX
13h 15m
1 stop
$926Delta
Tue, Sep 22 - Thu, Oct 1

Virgin Atlantic flights from Portland to United Kingdom

Our best Virgin Atlantic deals on Portland to United Kingdom flight tickets
Virgin Atlantic
Aug 7
PDX5:54 pmPortland
13h 41m
1 stop
LHR3:35 pmLondon Heathrow
Aug 18
LHR8:55 pmLondon Heathrow
22h 15m
1 stop
PDX11:10 amPortland
$929
Virgin Atlantic
Sep 9
PDX1:05 pmPortland
20h 15m
1 stop
LCY5:20 pmLondon City
Sep 14
LCY8:15 pmLondon City
22h 55m
1 stop
PDX11:10 amPortland
$947
Virgin Atlantic
Sep 20
PDX1:05 pmPortland
26h 05m
1 stop
GLA11:10 pmGlasgow Intl
Oct 3
GLA6:00 amGlasgow Intl
13h 10m
1 stop
PDX11:10 amPortland
$951

Scandinavian Airlines flights from Portland to United Kingdom

Our best Scandinavian Airlines deals on Portland to United Kingdom flight tickets
Scandinavian Airlines
Sep 18
PDX1:38 pmPortland
20h 47m
2 stops
EDI6:25 pmEdinburgh Turnhouse
Sep 28
EDI7:10 pmEdinburgh Turnhouse
31h 31m
2 stops
PDX6:41 pmPortland
$949
Scandinavian Airlines
May 26
PDX11:20 amPortland
20h 40m
2 stops
LHR4:00 pmLondon Heathrow
Jun 10
LHR5:00 pmLondon Heathrow
37h 22m
2 stops
PDX10:22 pmPortland
$988
Scandinavian Airlines
May 24
PDX11:20 amPortland
20h 40m
2 stops
LHR4:00 pmLondon Heathrow
May 27
LHR7:50 pmLondon Heathrow
33h 10m
2 stops
PDX9:00 pmPortland
$1,038

momondo Fare Finder

 
Customize your flight search to find flights from Portland to United Kingdom that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated May 11, 2026.
Use the filters below to find and compare flights from Portland to the United Kingdom that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PortlandEdinburgh

PDX - EDI

PDXEDI

Portland

Sun 6/7

3:30 pm-12:25 am

3 stops24h 55m

Edinburgh Turnhouse

Sat 6/13

8:00 pm-7:10 pm

3 stops31h 10m

$753

PortlandManchester

PDX - MAN

PDXMAN

Portland

Wed 8/19

7:05 pm-11:40 am

1 stop32h 35m

Manchester

Wed 8/26

1:05 pm-5:55 pm

1 stop12h 50m

$837

PortlandGlasgow

PDX - GLA

PDXGLA

Portland

Mon 8/17

10:56 am-10:10 am

1 stop15h 14m

Glasgow Intl

Thu 8/20

2:00 pm-9:59 pm

1 stop15h 59m

$902

PortlandGlasgow

PDX - GLA

PDXGLA

Portland

Mon 8/17

7:30 pm-7:40 pm

1 stop16h 10m

Glasgow Intl

Thu 8/20

7:00 am-6:59 pm

2 stops19h 59m

$903

PortlandGlasgow

PDX - GLA

PDXGLA

Portland

Mon 8/17

7:30 pm-7:40 pm

1 stop16h 10m

Glasgow Intl

Thu 8/20

7:00 am-5:21 pm

2 stops18h 21m

$904
Quickest round-trip

PortlandGlasgow

PDX - GLA

PDXGLA

Portland

Wed 9/16

7:00 am-8:25 am

2 stops17h 25m

Glasgow Intl

Wed 9/30

6:00 am-11:10 am

1 stop13h 10m

$906

PortlandGlasgow

PDX - GLA

PDXGLA

Portland

Mon 8/17

8:25 am-10:10 am

2 stops17h 45m

Glasgow Intl

Thu 8/20

2:00 pm-11:40 pm

2 stops17h 40m

$907

PortlandManchester

PDX - MAN

PDXMAN

Portland

Mon 8/24

7:30 pm-10:30 pm

1 stop19h 00m

Manchester

Thu 9/3

10:50 am-5:40 pm

1 stop14h 50m

$908

PortlandManchester

PDX - MAN

PDXMAN

Portland

Mon 8/24

7:30 pm-10:30 pm

1 stop19h 00m

Manchester

Thu 9/3

8:50 am-5:40 pm

1 stop16h 50m

$909

PortlandManchester

PDX - MAN

PDXMAN

Portland

Tue 9/22

7:00 am-10:00 am

2 stops19h 00m

Manchester

Thu 10/1

5:55 am-11:10 am

1 stop13h 15m

$926

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to the United Kingdom from

How to get the cheapest flight ticket from Portland to United Kingdom

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 United Kingdom?

In general, April is the cheapest month to fly from Portland to United Kingdom. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $465. If you aren’t able to travel to United Kingdom during the month of April, then flying in March is also cheap. Prices for this month can be found on momondo for an average of $465.

What is the cheapest day to depart on your flight to United Kingdom?

The cheapest day to depart from Portland to United Kingdom is on a Monday when prices can be found for as low as $857. The most expensive day to fly to United Kingdom is Saturday, with ticket prices averaging around $1,016.

What is the cheapest time of day to depart on your flight to United Kingdom?

According to our data, the cheapest time of day to fly to United Kingdom is in the afternoon. momondo users have found flights departing from Portland to United Kingdom in the afternoon for as low as $735. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights to United Kingdom are more costly in the evening, with an average ticket price of $938. Departure times in the evening fall within the peak daily travel times, which is why tickets can be more expensive.

What is the cheapest Portland to United Kingdom flight route?

Fly from Portland to London Heathrow for the best Portland - United Kingdom flight prices

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

You are more likely to see cheaper flights to United Kingdom from Portland when booking weeks ahead of your departure date. In general, you can expect to find flights to United Kingdom for around $872 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to United Kingdom from Portland for as low as $745 on momondo.

Can stopping save me money on Portland to United Kingdom flights?

You could potentially save up to 48% on your flight if you consider stops on a Portland to United Kingdom flight.

Cheap Portland to United Kingdom flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Portland to United Kingdom

Best Price Found

$397

Fastest flight time

9h 30m

Direct flights

Every day

Airports in United Kingdom

1,286 airports
The best one-way flight to United Kingdom from Portland in the past 72 hours is $397. The best round-trip flight deal from Portland to United Kingdom found on momondo in the last 72 hours is $991.
The fastest flight from Portland to United Kingdom takes 9h 30m
Direct flights go from Portland to United Kingdom every day.
There are 1,286 airports in United Kingdom. From Portland there are direct flights to London Heathrow (LHR).
Search flight deals

Frequently asked questions about flying from Portland to the United Kingdom

  • When did momondo last update prices for flights from Portland Airport to United Kingdom?

    Prices for flights from Portland Airport to United Kingdom refresh daily.

  • How many operators does momondo search for flights from Portland Airport to United Kingdom?

  • How old do you have to be to fly from Portland Airport to United Kingdom?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Portland Airport to United Kingdom.

  • What documentation or ID do you need to fly to United Kingdom?

    The required travel and health documents for your United Kingdom trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at United Kingdom. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular plane model from Portland to United Kingdom?

Best airlines flying from Portland to United Kingdom

Compare and see reviews for airlines that fly from Portland to United Kingdom with momondo
Airline
Rating
Free Cancellation
Price
IcelandairPriceFrom $472Free CancellationRating
7.0
652 reviews
Search Icelandair flights
IberiaPriceFrom $525Free CancellationRating
7.0
3,214 reviews
Search Iberia flights
DeltaPriceFrom $552Free CancellationRating
7.9
8,451 reviews
Search Delta flights
Virgin AtlanticPriceFrom $558Free CancellationRating
7.4
688 reviews
Search Virgin Atlantic flights
KLMPriceFrom $561Free CancellationRating
7.8
1,513 reviews
Search KLM flights
British AirwaysPriceFrom $575Free CancellationRating
6.7
7,969 reviews
Search British Airways flights
Alaska AirlinesPriceFrom $600Free CancellationRating
7.9
12,352 reviews
Search Alaska Airlines flights
United AirlinesPriceFrom $607Free CancellationRating
7.4
9,699 reviews
Search United Airlines flights
Air CanadaPriceFrom $630Free CancellationRating
7.1
11,017 reviews
Search Air Canada flights
FinnairPriceFrom $664Free CancellationRating
7.6
1,393 reviews
Search Finnair flights

Why use momondo?

Why should I use momondo to find a flight deal from Portland to United Kingdom?

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 United Kingdom from Portland.

Can I find flights from Portland to United Kingdom with flexible booking policies on momondo?

Yes. All flights to United Kingdom from Portland on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Portland to United Kingdom?

momondo provides multiple filters to help you find the best flight to United Kingdom from Portland. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Portland to United Kingdom right now. Can momondo alert me if prices change?

Price alerts on flights to United Kingdom from Portland are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

An easier way to manage your United Kingdom trip

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Find better results for your trip to the United Kingdom

Popular cities in the United Kingdom

Popular flights according to clicks in the last 7 days on momondo
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