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Cheap flights from the United Kingdom to Portland from £347

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

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Find the cheapest flights from the United Kingdom to Portland

Recent return flight deals from the United Kingdom to Portland

Enter your travel dates to find the best prices.
JetBlue Logo
11:55 - 23:03
LHR
-
PWM
16h 08m
1 stop
JetBlue Logo
06:00 - 20:45
PWM
-
LHR
9h 45m
1 stop
£509JetBlue
Fri, 15 May - Fri, 22 May
JetBlue Logo
08:15 - 23:03
LHR
-
PWM
19h 48m
1 stop
JetBlue Logo
07:20 - 09:30
PWM
-
LHR
21h 10m
1 stop
£520JetBlue
Tue, 12 May - Tue, 19 May
JetBlue Logo
08:15 - 23:03
LHR
-
PWM
19h 48m
1 stop
JetBlue Logo
06:00 - 09:30
PWM
-
LHR
22h 30m
1 stop
£533JetBlue
Thu, 14 May - Fri, 22 May
JetBlue Logo
08:15 - 23:02
LHR
-
PWM
19h 47m
1 stop
JetBlue Logo
07:20 - 09:30
PWM
-
LHR
21h 10m
1 stop
£542JetBlue
Sun, 10 May - Sun, 17 May
Multiple Airlines Logo
13:05 - 23:03
LHR
-
PWM
14h 58m
2 stops
Multiple Airlines Logo
07:20 - 11:55
PWM
-
LHR
23h 35m
2 stops
£616Multiple Airlines
Tue, 12 May - Tue, 19 May
United Airlines Logo
12:10 - 23:29
LHR
-
PWM
16h 19m
2 stops
United Airlines Logo
06:00 - 21:25
PWM
-
LHR
10h 25m
1 stop
£669United Airlines
Tue, 12 May - Tue, 19 May
United Airlines Logo
06:55 - 18:58
LHR
-
PWM
17h 03m
2 stops
United Airlines Logo
11:34 - 06:55
PWM
-
LHR
14h 21m
2 stops
£670United Airlines
Mon, 27 Apr - Mon, 4 May
American Airlines Logo
10:30 - 23:54
EDI
-
PWM
18h 24m
2 stops
American Airlines Logo
06:00 - 07:40
PWM
-
EDI
20h 40m
1 stop
£853American Airlines
Thu, 14 May - Thu, 21 May
Multiple Airlines Logo
13:05 - 12:17
MAN
-
PWM
28h 12m
2 stops
Multiple Airlines Logo
14:35 - 10:05
PWM
-
MAN
14h 30m
2 stops
£1,115Multiple Airlines
Mon, 3 Aug - Mon, 17 Aug
Virgin Atlantic Logo
13:00 - 23:14
MAN
-
PWM
15h 14m
1 stop
Virgin Atlantic Logo
13:35 - 08:50
PWM
-
MAN
14h 15m
1 stop
£1,404Virgin Atlantic
Mon, 3 Aug - Mon, 17 Aug

JetBlue flights from United Kingdom to Portland, Maine

Our best JetBlue deals on United Kingdom to Portland, Maine flight tickets
JetBlue
15 May
LHR11:55London Heathrow
16h 08m
1 stop
PWM23:03Portland
22 May
PWM06:00Portland
9h 45m
1 stop
LHR20:45London Heathrow
£509
JetBlue
12 May
LHR08:15London Heathrow
19h 48m
1 stop
PWM23:03Portland
19 May
PWM07:20Portland
21h 10m
1 stop
LHR09:30London Heathrow
£520
JetBlue
14 May
LHR08:15London Heathrow
19h 48m
1 stop
PWM23:03Portland
22 May
PWM06:00Portland
22h 30m
1 stop
LHR09:30London Heathrow
£533

American Airlines flights from United Kingdom to Portland, Maine

Our best American Airlines deals on United Kingdom to Portland, Maine flight tickets
American Airlines
15 Apr
LHR18:05London Heathrow
20h 49m
1 stop
PWM09:54Portland
19 Apr
PWM16:53Portland
23h 47m
1 stop
LHR21:40London Heathrow
£765
American Airlines
14 May
EDI10:30Edinburgh Turnhouse
18h 24m
2 stops
PWM23:54Portland
21 May
PWM06:00Portland
20h 40m
1 stop
EDI07:40Edinburgh Turnhouse
£853

momondo Fare Finder

 
Customise your flight search to find flights from United Kingdom to Portland, Maine 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 31 March 2026.
Use the filters below to find and compare flights from the United Kingdom to Portland, Maine that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight
Fastest return journey

LondonPortland

LHR - PWM

LHRPWM

London Heathrow

Fri 15/5

11:55-23:03

1 stop16h 08m

Portland

Fri 22/5

06:00-20:45

1 stop9h 45m

£509

LondonPortland

LHR - PWM

LHRPWM

London Heathrow

Tue 12/5

08:15-23:03

1 stop19h 48m

Portland

Tue 19/5

07:20-09:30

1 stop21h 10m

£520

LondonPortland

LHR - PWM

LHRPWM

London Heathrow

Thu 14/5

08:15-23:03

1 stop19h 48m

Portland

Fri 22/5

06:00-09:30

1 stop22h 30m

£533

LondonPortland

LHR - PWM

LHRPWM

London Heathrow

Sun 10/5

08:15-23:02

1 stop19h 47m

Portland

Sun 17/5

07:20-09:30

1 stop21h 10m

£542

LondonPortland

LHR - PWM

LHRPWM

London Heathrow

Tue 12/5

13:05-23:03

2 stops14h 58m

Portland

Tue 19/5

07:20-11:55

2 stops23h 35m

£616

LondonPortland

LHR - PWM

LHRPWM

London Heathrow

Tue 12/5

12:10-23:29

2 stops16h 19m

Portland

Tue 19/5

06:00-21:25

1 stop10h 25m

£669

LondonPortland

LHR - PWM

LHRPWM

London Heathrow

Mon 27/4

06:55-18:58

2 stops17h 03m

Portland

Mon 4/5

11:34-06:55

2 stops14h 21m

£670

EdinburghPortland

EDI - PWM

EDIPWM

Edinburgh Turnhouse

Thu 14/5

10:30-23:54

2 stops18h 24m

Portland

Thu 21/5

06:00-07:40

1 stop20h 40m

£853

ManchesterPortland

MAN - PWM

MANPWM

Manchester

Mon 3/8

13:05-12:17

2 stops28h 12m

Portland

Mon 17/8

14:35-10:05

2 stops14h 30m

£1,115

ManchesterPortland

MAN - PWM

MANPWM

Manchester

Mon 3/8

13:00-23:14

1 stop15h 14m

Portland

Mon 17/8

13:35-08:50

1 stop14h 15m

£1,404

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
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See travel insights to Portland from

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

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 Portland, Maine?

The cheapest month to fly to Portland, Maine from United Kingdom is in October. Flight prices, which tend to average around £525, are often lower during this time because this is during the off-season. The month of February is another great option to travel to Portland, Maine, with average flight prices from United Kingdom averaging around £526.

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

You could potentially save up to 4% on your flight if you consider stops on a United Kingdom to Portland, Maine flight.

Cheap United Kingdom to Portland, Maine flight deals and tips

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

Fastest flight time

11h 54m

Direct flights

None
The fastest flight from United Kingdom to Portland, Maine takes 11h 54m
There are no direct flights from United Kingdom to Portland, Maine. There are no popular flight routes from United Kingdom to Portland, Maine.
Search flight deals

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

    Prices for flights from United Kingdom to Portland Airport are refreshed on a daily basis.

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

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

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from United Kingdom to Portland Airport.

  • What documentation or ID do you need to fly to Portland Airport?

    The travel and health documents you'll need for your trip to Portland Airport 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 Portland Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best airlines flying from United Kingdom to Portland, Maine

Compare and see reviews for airlines that fly from United Kingdom to Portland, Maine with momondo
Airline
Rating
Free Cancellation
Price
Virgin AtlanticPriceFrom £479Free CancellationRating
7.5
685 reviews
Search Virgin Atlantic flights
KLMPriceFrom £508Free CancellationRating
7.8
1,480 reviews
Search KLM flights
United AirlinesPriceFrom £551Free CancellationRating
7.4
9,519 reviews
Search United Airlines flights

Travelling to a place near Portland?

Book flights to Portland if you plan to visit one of these locations
Bath

Why use momondo?

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

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 Portland from United Kingdom.

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

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

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

Once all potential United Kingdom to Portland flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

If you are not ready to book a flight from United Kingdom to Portland now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Portland and let you know when they change.

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Airports servicing Maine

Bangor Airport