How long is the flight from United Kingdom to Portland, Maine?

Airlines like American Airlines, JetBlue, and Delta fly from United Kingdom to Portland, Maine in about 15h 52m. The time it takes to get you to your destination can typically vary by up to 3h 57m. The distance between United Kingdom and Portland, Maine is about 3173 mi. This flight may include one or multiple stops.

In terms of precipitation, rainfall in Portland, Maine ranges from 73.0 - 115.0 inches per month. November is typically the wettest month, when rainfall can reach 115.0 mm. August is typically the driest time to visit Portland, Maine when rainfall is around 73.0 mm.

If weather is an important factor for your trip to Portland, Maine, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 20.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around -5.0 C).

What are the most popular routes from United Kingdom to Portland, Maine?

While some choose either Manchester - Portland or Edinburgh Turnhouse - Portland, London Heathrow - Portland is the most popular route from United Kingdom to Portland, Maine.

What are the most popular airlines that fly from United Kingdom to Portland, Maine?

The most popular airlines flying from United Kingdom to Portland, Maine are Finnair, JetBlue and Icelandair. Something to consider prior to booking your flight.

What airport do you fly into for flights to Portland from United Kingdom?

If you book a flight to Portland from United Kingdom, you will be flying to Portland, which is the city’s only airport. Portland (PWM) is located 2.9 mi from the center of Portland.

Can I find deals for flights from United Kingdom to Portland that include hotel bookings?

Yes. In addition to deals on United Kingdom to Portland flights, Cheapflights offers holiday packages that include both flights and hotel.

How can I find direct flights from United Kingdom to Portland?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from United Kingdom to Portland.

Can I find deals for business class flights from United Kingdom to Portland?

Yes. Cheapflights offers flight deals from United Kingdom to Portland by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

£433+ Flights from the United Kingdom to Portland, Maine

Cheap flight deals from United Kingdom to Portland

Round-trip from	£466
One-way from	£433
Popular in	October
Cheapest in	February
Average price	£544

American Airlines
28/2-3/3
3 total stops
26h 28m total
United Kingdom to Portland

Search Deals

28/11
1 total stop
14h 44m total
United Kingdom to Portland

Search Deals

High demand for flights, 1% potential price rise

Search Deals

Cheapest flight prices on average. 2% potential price decrease (£12 potential savings vs. average return price).

Search Deals

Average for round-trip flights in September 2025

Search Deals

Find flight deals from United Kingdom to Portland

Cheapest flights from United Kingdom to Portland
Explore the most affordable flight options available from United Kingdom to Portland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 September 2025.

Tue 14/1008:15LHR - PWM

1 stop19h 49mJetBlue

Tue 21/1007:09PWM - LHR

1 stop21h 21mJetBlue

Deal found 16/9£470

Wed 29/1006:30LHR - PWM

2 stops19h 49mVirgin Atlantic

Mon 10/1106:00PWM - LHR

2 stops19h 55mVirgin Atlantic

Deal found 16/9£474

Sat 1/1108:00LHR - PWM

1 stop19h 17mUnited Airlines

Sat 8/1106:00PWM - LHR

2 stops20h 55mUnited Airlines

Deal found 17/9£477

Wed 29/1011:45LHR - PWM

1 stop14h 25mMultiple Airlines

Mon 10/1115:52PWM - LHR

1 stop9h 43mMultiple Airlines

Deal found 16/9£487

Mon 6/1011:20LHR - PWM

1 stop15h 59mDelta

Mon 20/1012:45PWM - LHR

1 stop15h 10mDelta

Deal found 16/9£487

Sat 27/908:40LHR - PWM

2 stops20h 54mDelta

Mon 6/1014:38PWM - LHR

1 stop15h 47mDelta

Deal found 15/9£493

Sat 1/1108:55LHR - PWM

2 stops17h 24mVirgin Atlantic

Sat 8/1113:27PWM - LHR

2 stops14h 53mVirgin Atlantic

Deal found 17/9£517

Thu 30/1006:35LHR - PWM

2 stops21h 24mUnited Airlines

Thu 6/1119:44PWM - LHR

1 stop10h 21mUnited Airlines

Deal found 15/9£545

Sat 1/1109:20NCL - PWM

2 stops16h 59mMultiple Airlines

Sat 8/1114:38PWM - NCL

2 stops14h 42mMultiple Airlines

Deal found 17/9£595

Thu 9/1014:15MAN - PWM

1 stop14h 50mDelta

Thu 16/1014:38PWM - MAN

2 stops21h 17mDelta

Deal found 16/9£600

Thu 2/1012:35MAN - PWM

1 stop16h 36mDelta

Mon 6/1014:38PWM - MAN

2 stops17h 47mDelta

Deal found 17/9£602

Sat 1/1106:40NCL - PWM

3 stops18h 41mAmerican Airlines

Sat 8/1115:52PWM - NCL

2 stops13h 48mAmerican Airlines

Deal found 17/9£624

Best flights from United Kingdom to Portland
Discover carefully curated flight deals from United Kingdom to Portland that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 18 September 2025.

Sat 28/211:40LHR - PWM

2 stops15h 52mAmerican Airlines

Tue 3/316:14PWM - LHR

1 stop10h 36mAmerican Airlines

Deal found 15/9£466

Tue 14/1008:15LHR - PWM

1 stop19h 49mJetBlue

Tue 21/1007:09PWM - LHR

1 stop21h 21mJetBlue

Deal found 16/9£470

Mon 6/1008:40LHR - PWM

2 stops18h 39mDelta

Mon 20/1014:38PWM - LHR

1 stop14h 37mDelta

Deal found 16/9£474

Wed 29/1006:30LHR - PWM

2 stops19h 49mVirgin Atlantic

Mon 10/1106:00PWM - LHR

2 stops19h 55mVirgin Atlantic

Deal found 16/9£474

Sat 1/1108:00LHR - PWM

1 stop19h 17mUnited Airlines

Sat 8/1106:00PWM - LHR

2 stops20h 55mUnited Airlines

Deal found 17/9£477

Wed 29/1011:45LHR - PWM

1 stop14h 25mMultiple Airlines

Mon 10/1115:52PWM - LHR

1 stop9h 43mMultiple Airlines

Deal found 16/9£487

Sat 27/908:40LHR - PWM

2 stops20h 54mDelta

Mon 6/1014:38PWM - LHR

1 stop15h 47mDelta

Deal found 15/9£493

Sat 1/1109:20NCL - PWM

2 stops16h 59mMultiple Airlines

Sat 8/1114:38PWM - NCL

2 stops14h 42mMultiple Airlines

Deal found 17/9£595

Thu 9/1010:10MAN - PWM

2 stops18h 55mScandinavian Airlines

Thu 16/1014:38PWM - MAN

3 stops22h 52mScandinavian Airlines

Deal found 16/9£1,201

Sat 1/1106:40NCL - PWM

3 stops18h 41mAmerican Airlines

Sat 8/1115:52PWM - NCL

2 stops13h 48mAmerican Airlines

Deal found 17/9£624

Thu 9/1014:15MAN - PWM

1 stop14h 50mDelta

Thu 16/1014:38PWM - MAN

2 stops21h 17mDelta

Deal found 16/9£600

Sat 1/1106:05MAN - PWM

2 stops19h 45mUnited Airlines

Sat 8/1109:45PWM - MAN

2 stops26h 15mUnited Airlines

Deal found 17/9£663

Thu 2/1012:35MAN - PWM

1 stop16h 36mDelta

Mon 6/1014:38PWM - MAN

2 stops17h 47mDelta

Deal found 17/9£602

Fri 31/1013:00MAN - PWM

2 stops36h 50mUnited Airlines

Fri 7/1119:22PWM - MAN

2 stops16h 38mUnited Airlines

Deal found 16/9£669

Thu 2/1010:10MAN - PWM

2 stops19h 24mScandinavian Airlines

Mon 6/1006:50PWM - MAN

3 stops21h 40mScandinavian Airlines

Deal found 17/9£2,091

Thu 9/1018:10MAN - PWM

3 stops34h 03mMultiple Airlines

Thu 16/1012:40PWM - MAN

3 stops20h 10mMultiple Airlines

Deal found 16/9£2,063

Last-minute flights from United Kingdom to Portland
Discover last-minute flight deals from United Kingdom to Portland. Data last updated 18 September 2025 and is based on user searches.

Sat 27/908:40LHR - PWM

2 stops20h 54mDelta

Mon 6/1014:38PWM - LHR

1 stop15h 47mDelta

Deal found 15/9£493

Thu 2/1012:35MAN - PWM

1 stop16h 36mDelta

Mon 6/1014:38PWM - MAN

2 stops17h 47mDelta

Deal found 17/9£602

Mon 6/1011:20LHR - PWM

1 stop15h 59mDelta

Mon 20/1012:45PWM - LHR

1 stop15h 10mDelta

Deal found 16/9£487

Thu 9/1014:15MAN - PWM

1 stop14h 50mDelta

Thu 16/1014:38PWM - MAN

2 stops21h 17mDelta

Deal found 16/9£600

Thu 9/1010:10MAN - PWM

2 stops18h 55mScandinavian Airlines

Thu 16/1014:38PWM - MAN

3 stops22h 52mScandinavian Airlines

Deal found 16/9£1,201

Thu 9/1018:10MAN - PWM

3 stops34h 03mMultiple Airlines

Thu 16/1012:40PWM - MAN

3 stops20h 10mMultiple Airlines

Deal found 16/9£2,063

Tue 14/1008:15LHR - PWM

1 stop19h 49mJetBlue

Tue 21/1007:09PWM - LHR

1 stop21h 21mJetBlue

Deal found 16/9£470

Wed 29/1006:30LHR - PWM

2 stops19h 49mDelta

Mon 10/1114:30PWM - LHR

1 stop11h 25mDelta

Deal found 16/9£474

Wed 29/1011:45LHR - PWM

1 stop14h 25mMultiple Airlines

Mon 10/1115:52PWM - LHR

1 stop9h 43mMultiple Airlines

Deal found 16/9£487

Thu 30/1006:35LHR - PWM

2 stops21h 24mUnited Airlines

Thu 6/1119:44PWM - LHR

1 stop10h 21mUnited Airlines

Deal found 15/9£545

Fri 31/1006:35LHR - PWM

2 stops21h 24mUnited Airlines

Fri 7/1115:00PWM - LHR

1 stop12h 25mUnited Airlines

Deal found 16/9£547

Fri 31/1013:00MAN - PWM

2 stops36h 50mUnited Airlines

Fri 7/1119:22PWM - MAN

2 stops16h 38mUnited Airlines

Deal found 16/9£669

One-way flights from United Kingdom to Portland
Search for one-way flight options from United Kingdom to Portland. Find affordable one-way fares based on user searches. Data last updated 18 September 2025.

Fri 28/1113:10LHR - PWM

1 stop14h 44mMultiple Airlines

Deal found 14/9£433

Fri 28/1111:45LHR - PWM

2 stops17h 09mDelta

Deal found 14/9£441

Fri 26/914:10LHR - PWM

3 stops53h 42mMultiple Airlines

Deal found 16/9£454

Fri 26/914:10LHR - PWM

2 stops51h 50mWestJet

Deal found 16/9£623

Fri 26/911:55LHR - PWM

1 stop15h 12mJetBlue

Deal found 16/9£639

Fri 21/1109:10LHR - PWM

1 stop13h 38mUnited Airlines

Deal found 16/9£1,323

Fri 10/1021:25LHR - PWM

3 stops44h 41mMultiple Airlines

Deal found 15/9£1,518

Fri 10/1008:15LHR - PWM

1 stop19h 49mJetBlue

Deal found 15/9£1,982

Cheapflights Fare Finder

Use the filters below to find and compare flights from the United Kingdom to Portland that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

LondonPortland

LHR - PWM

LHRPWM

London Heathrow

Sat 28/2

11:40-22:32

2 stops15h 52m

Portland

Tue 3/3

16:14-07:50

1 stop10h 36m

£466

LondonPortland

LHR - PWM

LHRPWM

London Heathrow

Tue 14/10

08:15-23:04

1 stop19h 49m

Portland

Tue 21/10

07:09-09:30

1 stop21h 21m

£470

LondonPortland

LHR - PWM

LHRPWM

London Heathrow

Mon 6/10

08:40-22:19

2 stops18h 39m

Portland

Mon 20/10

14:38-10:15

1 stop14h 37m

£474

LondonPortland

LHR - PWM

LHRPWM

London Heathrow

Wed 29/10

06:30-22:19

2 stops19h 49m

Portland

Mon 10/11

06:00-06:55

2 stops19h 55m

£474

LondonPortland

LHR - PWM

LHRPWM

London Heathrow

Sat 1/11

08:00-23:17

1 stop19h 17m

Portland

Sat 8/11

06:00-07:55

2 stops20h 55m

£477

LondonPortland

LHR - PWM

LHRPWM

London Heathrow

Wed 29/10

11:45-22:10

1 stop14h 25m

Portland

Mon 10/11

15:52-06:35

1 stop9h 43m

£487

LondonPortland

LHR - PWM

LHRPWM

London Heathrow

Sat 27/9

08:40-00:34

2 stops20h 54m

Portland

Mon 6/10

14:38-11:25

1 stop15h 47m

£493

Newcastle upon TynePortland

NCL - PWM

NCLPWM

Newcastle upon Tyne

Sat 1/11

09:20-22:19

2 stops16h 59m

Portland

Sat 8/11

14:38-10:20

2 stops14h 42m

£595

ManchesterPortland

MAN - PWM

MANPWM

Manchester

Thu 9/10

14:15-00:05

1 stop14h 50m

Portland

Thu 16/10

14:38-16:55

2 stops21h 17m

£600

ManchesterPortland

MAN - PWM

MANPWM

Manchester

Thu 2/10

12:35-00:11

1 stop16h 36m

Portland

Mon 6/10

14:38-13:25

2 stops17h 47m

£602

Flights are sorted by cheapest return flights first.

Deals found on 14/9

Showing 1-10 of 24 results

Best time to book a flight from United Kingdom to Portland

Have a flexible travel schedule? Discover the best time to fly to Portland from United Kingdom with our price prediction graph.

Estimated return price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

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

What is the cheapest time of day to fly from GB to PWM?

When flying from United Kingdom to Portland, Maine, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Reviews of airlines servicing Portland

Get a feel of what it's like to fly with KLM, Finnair, andUnited Airlines from the United Kingdom to Portland by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

KLM

7.8

Good

1,386 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Mark,Sept 2025

AMS - BHX

Crew and snacks were good, boarding wasn't great as busses were used rather than boarding tunnels. Also endured a one hour delay.

KLM

7.8

Good

1,386 reviews

KLM

7.8

Good

1,386 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Mark,Sept 2025

AMS - BHX

Crew and snacks were good, boarding wasn't great as busses were used rather than boarding tunnels. Also endured a one hour delay.

Finnair

7.6

Good

1,324 reviews

KLM

7.8

Good

1,386 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Mark,Sept 2025

AMS - BHX

Crew and snacks were good, boarding wasn't great as busses were used rather than boarding tunnels. Also endured a one hour delay.

United Airlines

7.4

Good

8,926 reviews

KLM

7.8

Good

1,386 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Mark,Sept 2025

AMS - BHX

Crew and snacks were good, boarding wasn't great as busses were used rather than boarding tunnels. Also endured a one hour delay.

Virgin Atlantic

7.4

Good

664 reviews

KLM

7.8

Good

1,386 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Mark,Sept 2025

AMS - BHX

Crew and snacks were good, boarding wasn't great as busses were used rather than boarding tunnels. Also endured a one hour delay.

JetBlue

7.2

Good

2,914 reviews

KLM

7.8

Good

1,386 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Mark,Sept 2025

AMS - BHX

Crew and snacks were good, boarding wasn't great as busses were used rather than boarding tunnels. Also endured a one hour delay.

Related info for your journey

What airport do you fly into for flights to Portland from United Kingdom?
If you book a flight to Portland from United Kingdom, you will be flying to Portland, which is the city’s only airport. Portland (PWM) is located 2.9 mi from the center of Portland.
How long is the flight from United Kingdom to Portland, Maine?
Airlines like American Airlines, JetBlue, and Delta fly from United Kingdom to Portland, Maine in about 15h 52m. The time it takes to get you to your destination can typically vary by up to 3h 57m. The distance between United Kingdom and Portland, Maine is about 3173 mi. This flight may include one or multiple stops.
What are the most popular routes from United Kingdom to Portland, Maine?
While some choose either Manchester - Portland or Edinburgh Turnhouse - Portland, London Heathrow - Portland is the most popular route from United Kingdom to Portland, Maine.
Can I find deals for flights from United Kingdom to Portland that include hotel bookings?
Yes. In addition to deals on United Kingdom to Portland flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from United Kingdom to Portland?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from United Kingdom to Portland.
Can I find deals for business class flights from United Kingdom to Portland?
Yes. Cheapflights offers flight deals from United Kingdom to Portland by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Bath

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Alternative routes for United Kingdom to Portland

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Bristol to Boston flights

Newcastle upon Tyne to Boston flights

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Belfast City to Boston flights

Southend to Boston flights

Southampton to Boston flights

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Heathrow to Bangor flights

Cardiff to Boston flights

Leeds to Boston flights

Norwich to Boston flights

Inverness to Boston flights

East Midlands to Boston flights

Newcastle upon Tyne to Portland flights

Aberdeen to Boston flights

Amsterdam to Boston flights

Dublin to Boston flights

Darlington to Boston flights

Newquay to Boston flights

Vicenza to Boston flights

Edinburgh to Portland flights

Munich to Boston flights

Charles de Gaulle to Boston flights

Madrid to Boston flights

Istanbul to Boston flights

Doncaster to Boston flights

Barcelona-El Prat to Boston flights

Athens to Boston flights

Direct flights to United States

Top 7 airlines flying from United Kingdom to Portland

Airline	Cheapest	Average	Flexibility	On-time
Icelandair	Cheapest£377	Average£582	FlexibilityNo cancel fee	On-time76%	Search Icelandair flights
JetBlue	Cheapest£392	Average£571	FlexibilityNo cancel fee	On-time62%	Search JetBlue flights
Virgin Atlantic	Cheapest£463	Average£687	FlexibilityNo cancel fee	On-time72%	Search Virgin Atlantic flights
Finnair	Cheapest£464	Average£572	FlexibilityNo cancel fee	On-time76%	Search Finnair flights
KLM	Cheapest£475	Average£742	FlexibilityNo cancel fee	On-time75%	Search KLM flights
United Airlines	Cheapest£547	Average£803	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights
Aer Lingus	Cheapest£608	Average£878	FlexibilityNo cancel fee	On-timeN/A	Search Aer Lingus flights

Fly with Cheapflights

How does Cheapflights help users find flights from United Kingdom to Portland?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from United Kingdom to Portland. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from United Kingdom to Portland?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from United Kingdom to Portland.

Can Cheapflights find flights from United Kingdom to Portland with no change fees?

Yes! Cheapflights helps users easily find flights from United Kingdom to Portland with no change fees.

Can Cheapflights notify me if prices for flights from United Kingdom to Portland become cheaper?

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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Cheap flights from the United Kingdom to Portland, Maine from £433

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 28/11. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from United Kingdom to Portland

Keep the following information in mind while searching for United Kingdom to Portland flight deals. Data was last updated 18 September 2025.

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from United Kingdom to Portland

Cheapest flights from United Kingdom to PortlandExplore the most affordable flight options available from United Kingdom to Portland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 September 2025.

Explore the most affordable flight options available from United Kingdom to Portland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 September 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from the United Kingdom to Portland that are best for you.

Best time to book a flight from United Kingdom to Portland

Have a flexible travel schedule? Discover the best time to fly to Portland from United Kingdom with our price prediction graph.

Cheapflights Insights

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

What is the cheapest time of day to fly from GB to PWM?

Find hourly flight availability from United Kingdom to Portland. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 18 September 2025.

Reviews of airlines servicing Portland

Get a feel of what it's like to fly with KLM, Finnair, andUnited Airlines from the United Kingdom to Portland by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from United Kingdom to Portland. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What airport do you fly into for flights to Portland from United Kingdom?

How long is the flight from United Kingdom to Portland, Maine?

What are the most popular routes from United Kingdom to Portland, Maine?

Can I find deals for flights from United Kingdom to Portland that include hotel bookings?

How can I find direct flights from United Kingdom to Portland?

Can I find deals for business class flights from United Kingdom to Portland?

Travelling to a place near Portland?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for United Kingdom to Portland

See prices for flight routes from nearby airports that may be better suited for you.

Top 7 airlines flying from United Kingdom to Portland

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from United Kingdom to Portland?

Why should you use Cheapflights to find cheap flight tickets from United Kingdom to Portland?

Can Cheapflights find flights from United Kingdom to Portland with no change fees?

Can Cheapflights notify me if prices for flights from United Kingdom to Portland become cheaper?

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Cheapest flights from United Kingdom to Portland
Explore the most affordable flight options available from United Kingdom to Portland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 September 2025.