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

Airlines like JetBlue, Scandinavian Airlines, and United Airlines fly from United Kingdom to Portland, Maine in about 16h 23m. The time it takes to get you to your destination can typically vary by up to 6h 18m. 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 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.

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.

£410+ Cheap Flights from the United Kingdom to Portland, Maine

Cheap flight deals from United Kingdom to Portland

Enter your travel dates to find the best prices.

Cheapest

Best

Last-minute

One-way

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 31 October 2026.

Thu 12/1112:20 -

1 stop16h 23m

Mon 16/1106:30 -

1 stop10h 10m

Deal found 25/10£704

Wed 2/1206:40 -

2 stops22h 41m

Sun 6/1206:00 -

2 stops30h 40m

Deal found 28/10£738

Wed 2/1219:15 -

2 stops34h 06m

Sun 6/1206:00 -

2 stops22h 30m

Deal found 29/10£745

Wed 2/1212:05 -

2 stops16h 19m

Sun 6/1209:12 -

1 stop31h 08m

Deal found 28/10£757

Wed 25/1112:05 -

2 stops16h 16m

Wed 2/1214:15 -

2 stops13h 55m

Deal found 28/10£758

Mon 23/1112:05 -

2 stops16h 16m

Mon 30/1114:05 -

1 stop15h 45m

Deal found 26/10£762

Thu 12/1106:25 -

2 stops22h 18m

Mon 16/1106:30 -

2 stops28h 50m

Deal found 25/10£781

Thu 12/1110:45 -

2 stops41h 58m

Sun 15/1106:30 -

2 stops46h 10m

Deal found 27/10£844

Thu 10/1205:05 -

2 stops22h 43m

Thu 17/1205:30 -

2 stops24h 35m

Deal found 26/10£937

Mon 14/1206:10 -

2 stops18h 02m

Mon 21/1206:00 -

2 stops23h 20m

Deal found 29/10£937

Sun 13/1206:00 -

2 stops20h 29m

Sun 20/1219:44 -

2 stops33h 36m

Deal found 29/10£1,045

Thu 10/1214:55 -

1 stop13h 57m

Thu 17/1216:00 -

2 stops15h 45m

Deal found 26/10£1,049

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 31 October 2026.

Thu 12/1112:20 -

1 stop16h 23m

Mon 16/1106:30 -

1 stop10h 10m

Deal found 25/10£704

Wed 2/1206:40 -

2 stops22h 41m

Sun 6/1206:00 -

2 stops30h 40m

Deal found 26/10£741

Wed 2/1209:00 -

2 stops19h 24m

Sun 6/1219:55 -

1 stop19h 40m

Deal found 29/10£760

Thu 12/1106:25 -

2 stops22h 18m

Mon 16/1106:30 -

2 stops28h 50m

Deal found 25/10£781

Thu 12/1112:40 -

1 stop15h 51m

Mon 16/1106:00 -

2 stops20h 45m

Deal found 25/10£786

Thu 26/1116:45 -

2 stops24h 20m

Thu 3/1212:44 -

1 stop14h 51m

Deal found 27/10£787

Thu 10/1214:55 -

1 stop13h 57m

Thu 17/1216:00 -

2 stops15h 45m

Deal found 26/10£1,049

Thu 10/1206:10 -

3 stops20h 02m

Thu 17/1219:45 -

2 stops32h 00m

Deal found 26/10£1,340

Thu 10/1206:10 -

3 stops20h 02m

Thu 17/1207:00 -

3 stops22h 20m

Deal found 26/10£1,469

Wed 2/1219:15 -

2 stops34h 06m

Sun 6/1206:00 -

2 stops22h 30m

Deal found 29/10£745

Mon 23/1112:05 -

2 stops16h 16m

Mon 30/1114:05 -

1 stop15h 45m

Deal found 26/10£762

Thu 12/1110:45 -

2 stops41h 58m

Sun 15/1106:30 -

2 stops46h 10m

Deal found 27/10£844

Thu 26/1112:05 -

2 stops25h 55m

Thu 3/1206:00 -

1 stop10h 20m

Deal found 29/10£787

Sat 12/1212:05 -

2 stops16h 19m

Thu 17/1206:00 -

1 stop21h 25m

Deal found 30/10£804

Mon 14/1206:10 -

2 stops18h 02m

Mon 21/1206:00 -

2 stops23h 20m

Deal found 29/10£937

Sun 13/1206:00 -

2 stops20h 29m

Sun 20/1219:44 -

2 stops33h 36m

Deal found 29/10£1,045

Thu 10/1214:55 -

1 stop13h 57m

Thu 17/1206:00 -

1 stop23h 50m

Deal found 26/10£2,292

Find flight deals from United Kingdom to Portland

Round-trip from	£704
One-way from	£410
Popular in	July
Cheapest in	February
Average price	£919

JetBlue
12/11-16/11
2 total stops
26h 33m total
United Kingdom to Portland

Search Deals

8/12-31/12
2 total stops
28h 38m total
United Kingdom to Portland

Search Deals

Highest demand for flights based on searches. 12% potential increase in price (£87 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease (£23 potential savings vs. average return price).

Search Deals

Average for round-trip flights in October 2026

Search Deals

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

Cheapest return flight

LondonPortland

LHR London Heathrow - PWM Portland

LHRPWM

London Heathrow

Tue 8/12

09:30-09:08

2 stops28h 38m

Portland

Wed 31/12

00:00-06:00

Nonstop0h 00m

£410

LondonPortland

LHR London Heathrow - PWM Portland

LHRPWM

London Heathrow

Tue 8/12

12:50-13:38

1 stop29h 48m

Portland

Wed 31/12

00:00-06:00

Nonstop0h 00m

£581

LondonPortland

LHR London Heathrow - PWM Portland

LHRPWM

London Heathrow

Thu 12/11

12:20-23:43

1 stop16h 23m

Portland

Mon 16/11

06:30-21:40

1 stop10h 10m

£704

LondonPortland

LHR London Heathrow - PWM Portland

LHRPWM

London Heathrow

Wed 2/12

06:40-00:21

2 stops22h 41m

Portland

Sun 6/12

06:00-17:40

2 stops30h 40m

£741

ManchesterPortland

MAN Manchester - PWM Portland

MANPWM

Manchester

Wed 2/12

19:15-00:21

2 stops34h 06m

Portland

Sun 6/12

06:00-09:30

2 stops22h 30m

£745

LondonPortland

LHR London Heathrow - PWM Portland

LHRPWM

London Heathrow

Wed 2/12

09:00-23:24

2 stops19h 24m

Portland

Sun 6/12

19:55-20:35

1 stop19h 40m

£760

LondonPortland

LHR London Heathrow - PWM Portland

LHRPWM

London Heathrow

Mon 23/11

12:05-23:21

2 stops16h 16m

Portland

Mon 30/11

14:05-10:50

1 stop15h 45m

£762

LondonPortland

LHR London Heathrow - PWM Portland

LHRPWM

London Heathrow

Thu 12/11

06:25-23:43

2 stops22h 18m

Portland

Mon 16/11

06:30-16:20

2 stops28h 50m

£781

LondonPortland

LHR London Heathrow - PWM Portland

LHRPWM

London Heathrow

Thu 12/11

12:40-23:31

1 stop15h 51m

Portland

Mon 16/11

06:00-07:45

2 stops20h 45m

£786

LondonPortland

LHR London Heathrow - PWM Portland

LHRPWM

London Heathrow

Thu 26/11

16:45-12:05

2 stops24h 20m

Portland

Thu 3/12

12:44-08:35

1 stop14h 51m

£787

Flights are sorted by cheapest return flights first.

Deals found on 28/10

Showing 1-10 of 21 resultsSorted by cheapest first

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.

LHR-PWM

MAN-PWM

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

GB0-PWM

LHR-PWM

MAN-PWM

What is the cheapest month to book a flight from United Kingdom to Portland, Maine?

Currently, January is the cheapest month in which you can book a flight from United Kingdom to Portland, Maine (average of £600). Flying from United Kingdom to Portland, Maine in July is currently the most expensive (average of £998). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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 JetBlue, Scandinavian Airlines, and United Airlines fly from United Kingdom to Portland, Maine in about 16h 23m. The time it takes to get you to your destination can typically vary by up to 6h 18m. 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.
What is the cheapest month to book a flight from United Kingdom to Portland, Maine?
Currently, January is the cheapest month in which you can book a flight from United Kingdom to Portland, Maine (average of £600). Flying from United Kingdom to Portland, Maine in July is currently the most expensive (average of £998). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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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.

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Cheap flights from the United Kingdom to Portland, Maine from £410

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/12. 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

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 31 October 2026.

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 31 October 2026.

Best flights from United Kingdom to PortlandDiscover 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 31 October 2026.

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 31 October 2026.

Last-minute flights from United Kingdom to PortlandDiscover last-minute flight deals from United Kingdom to Portland. Data last updated 31 October 2026 and is based on user searches.

Discover last-minute flight deals from United Kingdom to Portland. Data last updated 31 October 2026 and is based on user searches.

One-way flights from United Kingdom to PortlandSearch for one-way flight options from United Kingdom to Portland. Find affordable one-way fares based on user searches. Data last updated 31 October 2026.

Search for one-way flight options from United Kingdom to Portland. Find affordable one-way fares based on user searches. Data last updated 31 October 2026.

Find flight deals from United Kingdom to Portland

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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

What is the cheapest month to book a flight from United Kingdom to Portland, Maine?

Related info for your journey

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?

What is the cheapest month to book a flight from United Kingdom to Portland, Maine?

Browse thousands of different options on Cheapflights for your next trip

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United Kingdom and Portland flights

Browse other United Kingdom and Portland flight options. Last updated on 31 October 2026.

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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 31 October 2026.

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 31 October 2026.

Last-minute flights from United Kingdom to Portland
Discover last-minute flight deals from United Kingdom to Portland. Data last updated 31 October 2026 and is based on user searches.

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 31 October 2026.