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Cheap flights from Portland to the United Kingdom from £155

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 10/3. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Portland to the United Kingdom

Cheap return flights

Enter your travel dates to find the best prices.
British Airways Logo
13:52 - 09:40
PDX
-
INV
36h 48m
2 stops
British Airways Logo
19:45 - 00:20
INV
-
PDX
35h 35m
2 stops
£349British Airways
Mon, 9 Mar - Mon, 16 Mar
British Airways Logo
18:45 - 09:40
PDX
-
INV
31h 55m
1 stop
British Airways Logo
19:45 - 00:20
INV
-
PDX
35h 35m
2 stops
£351British Airways
Mon, 9 Mar - Mon, 16 Mar
Icelandair Logo
15:30 - 13:25
PDX
-
GLA
13h 55m
1 stop
Icelandair Logo
14:20 - 18:00
GLA
-
PDX
11h 40m
1 stop
£373Icelandair
Thu, 2 Apr - Fri, 10 Apr
KLM Logo
13:05 - 22:30
PDX
-
INV
25h 25m
1 stop
KLM Logo
06:25 - 11:10
INV
-
PDX
12h 45m
1 stop
£374KLM
Tue, 31 Mar - Thu, 9 Apr
Icelandair Logo
15:30 - 13:20
PDX
-
EDI
13h 50m
1 stop
Icelandair Logo
14:15 - 18:00
EDI
-
PDX
11h 45m
1 stop
£375Icelandair
Thu, 9 Apr - Fri, 17 Apr
Delta Logo
07:05 - 12:45
PDX
-
INV
21h 40m
2 stops
Delta Logo
06:25 - 11:10
INV
-
PDX
12h 45m
1 stop
£377Delta
Mon, 6 Apr - Tue, 21 Apr
Delta Logo
13:25 - 12:45
PDX
-
INV
15h 20m
1 stop
Delta Logo
13:15 - 16:55
INV
-
PDX
34h 40m
2 stops
£382Delta
Sun, 1 Mar - Wed, 11 Mar
KLM Logo
14:25 - 20:05
PDX
-
MAN
22h 40m
1 stop
KLM Logo
05:50 - 12:25
MAN
-
PDX
13h 35m
1 stop
£461KLM
Mon, 9 Mar - Mon, 16 Mar
Virgin Atlantic Logo
13:27 - 17:20
PDX
-
LCY
19h 53m
2 stops
Virgin Atlantic Logo
17:50 - 12:25
LCY
-
PDX
25h 35m
1 stop
£481Virgin Atlantic
Tue, 3 Mar - Tue, 10 Mar
Virgin Atlantic Logo
13:25 - 18:25
PDX
-
LCY
21h 00m
1 stop
Virgin Atlantic Logo
20:05 - 19:05
LCY
-
PDX
30h 00m
2 stops
£484Virgin Atlantic
Mon, 2 Mar - Mon, 16 Mar

Lufthansa flights from Portland to United Kingdom

Our best Lufthansa deals on Portland to United Kingdom flight tickets
Lufthansa
2 Mar
PDX09:50Portland
18h 00m
1 stop
LHR11:50London Heathrow
18 Mar
LHR11:10London Heathrow
20h 25m
2 stops
PDX00:35Portland
£437
Lufthansa
31 Mar
PDX15:15Portland
14h 05m
1 stop
LHR13:20London Heathrow
7 Apr
LHR10:50London Heathrow
21h 54m
2 stops
PDX00:44Portland
£448
Lufthansa
4 May
PDX10:10Portland
17h 40m
2 stops
LHR11:50London Heathrow
13 May
LHR06:30London Heathrow
20h 35m
2 stops
PDX19:05Portland
£448

Virgin Atlantic flights from Portland to United Kingdom

Our best Virgin Atlantic deals on Portland to United Kingdom flight tickets
Virgin Atlantic
3 Mar
PDX13:27Portland
19h 53m
2 stops
LCY17:20London City
10 Mar
LCY17:50London City
25h 35m
1 stop
PDX12:25Portland
£481
Virgin Atlantic
2 Mar
PDX13:25Portland
21h 00m
1 stop
LCY18:25London City
16 Mar
LCY20:05London City
30h 00m
2 stops
PDX19:05Portland
£484
Virgin Atlantic
27 Apr
PDX13:05Portland
11h 45m
1 stop
LCY08:50London City
13 May
LCY19:00London City
24h 10m
1 stop
PDX11:10Portland
£488

momondo Fare Finder

 
Customise 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 279,928 searches. Data last updated 25 January 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

PortlandInverness

PDX - INV

PDXINV

Portland

Mon 9/3

13:52-09:40

2 stops36h 48m

Inverness

Mon 16/3

19:45-00:20

2 stops35h 35m

£349

PortlandInverness

PDX - INV

PDXINV

Portland

Mon 9/3

18:45-09:40

1 stop31h 55m

Inverness

Mon 16/3

19:45-00:20

2 stops35h 35m

£351

PortlandGlasgow

PDX - GLA

PDXGLA

Portland

Thu 2/4

15:30-13:25

1 stop13h 55m

Glasgow Intl

Fri 10/4

14:20-18:00

1 stop11h 40m

£373

PortlandInverness

PDX - INV

PDXINV

Portland

Tue 31/3

13:05-22:30

1 stop25h 25m

Inverness

Thu 9/4

06:25-11:10

1 stop12h 45m

£374

PortlandEdinburgh

PDX - EDI

PDXEDI

Portland

Thu 9/4

15:30-13:20

1 stop13h 50m

Edinburgh Turnhouse

Fri 17/4

14:15-18:00

1 stop11h 45m

£375

PortlandInverness

PDX - INV

PDXINV

Portland

Mon 6/4

07:05-12:45

2 stops21h 40m

Inverness

Tue 21/4

06:25-11:10

1 stop12h 45m

£377

PortlandInverness

PDX - INV

PDXINV

Portland

Sun 1/3

13:25-12:45

1 stop15h 20m

Inverness

Wed 11/3

13:15-16:55

2 stops34h 40m

£382

PortlandManchester

PDX - MAN

PDXMAN

Portland

Mon 9/3

14:25-20:05

1 stop22h 40m

Manchester

Mon 16/3

05:50-12:25

1 stop13h 35m

£461

PortlandLondon

PDX - LCY

PDXLCY

Portland

Tue 3/3

13:27-17:20

2 stops19h 53m

London City

Tue 10/3

17:50-12:25

1 stop25h 35m

£481

PortlandLondon

PDX - LCY

PDXLCY

Portland

Mon 2/3

13:25-18:25

1 stop21h 00m

London City

Mon 16/3

20:05-19:05

2 stops30h 00m

£484

Flights are sorted by cheapest return 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?

The cheapest month to fly to United Kingdom from Portland is in October. Flight prices, which tend to average around £473, are often lower during this time because this is during the off-season. If you are unable to visit United Kingdom during the month of October, then departing from Portland during the month November is also very affordable. Most momondo users find prices during this month for around £483.

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 Sunday. Travellers who choose to depart for United Kingdom on a Sunday will often find tickets for as low as £458. When flying out on a Thursday, the most expensive travel day of the week, you can expect to see flight prices from Portland to United Kingdom for around £545.

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

The cheapest time of day to fly to United Kingdom is in the evening when flights can be purchased for as low as £513. Try not to purchase tickets in the afternoon because they tend to be around £521. Of course, these prices can vary depending on the time of year and what airport you fly to.

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 to 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 £611 when searching weeks before you fly. 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 £545 on momondo.

What cabin class options are available on Portland to United Kingdom flights?

There are 3 cabin classes available to choose from on Portland to United Kingdom flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

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

You could potentially save up to 9% 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

£291

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 £291. The best return flight deal from Portland to United Kingdom found on momondo in the last 72 hours is £1,338.
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

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

    Prices for flights from Portland Airport to United Kingdom are updated 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?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check 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 travel and health documents you'll need for your trip to United Kingdom may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at United Kingdom. It is always advisable to seek advice from your airline or a trusted 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
British AirwaysPriceFrom £377Free CancellationRating
6.7
7,699 reviews
Search British Airways flights
IberiaPriceFrom £425Free CancellationRating
7.0
3,098 reviews
Search Iberia flights
IcelandairPriceFrom £432Free CancellationRating
7.1
603 reviews
Search Icelandair flights

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Portland to United Kingdom . Millions of users trust and use momondo every year so you are in good hands.

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

All flight searches from Portland to United Kingdom on momondo can be filtered to show those which offer flexible booking policies.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Portland to United Kingdom.

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

Of course. momondo tracks the price of Portland to United Kingdom flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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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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