What’s the cheapest stopover airport for flights from London Heathrow Airport to Portland, Maine?

Chicago (ORD) is the most affordable one-stop option, with an average return flight price of £464.

What’s the fastest stopover option from London Heathrow Airport to Portland, Maine?

Flights via Newark (EWR) have the shortest average one-way travel time for one-stop routes: 12h 02m.

Which airport typically offers the quickest stopover for flights from London Heathrow Airport to Portland, Maine?

Flights via Chicago (ORD) offer the fastest connection on this route, with an average stopover time of 1h 10m.

What’s the top stopover airport for flights from London Heathrow Airport to Portland, Maine?

New York (JFK) – chosen by Cheapflights users on 48% of one-stop itineraries from London Heathrow Airport to Portland, Maine on Cheapflights.

How long is the flight from London Heathrow Airport to Portland, Maine?

American Airlines, JetBlue, and Delta can get you from London Heathrow Airport to Portland, Maine in just under 15h 52m. Your travel time can differ by up to 3h 57m. The distance from London Heathrow Airport to Portland, Maine is about 3173 mi. This flight may include one or multiple stops.

What are the cheapest airlines flying from London Heathrow Airport to Portland, Maine round-trip?

According to our current data, Icelandair (£378), JetBlue (£392), and Virgin Atlantic (£464) offers the cheapest pricing from London Heathrow Airport to Portland, Maine. Users have found that Icelandair is 40% cheaper than the other options available to this destination.

What is the cheapest day to fly from London Heathrow Airport to Portland, Maine?

Travellers seeking maximum savings on their London Heathrow Airport to Portland, Maine flight should consider departing on Tuesday afternoons when fares are most often at their lowest. Friday at midday flights should be avoided if possible as fares are typically the most expensive at this time.

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 airlines that fly from London Heathrow Airport to Portland, Maine?

Finnair, JetBlue and Icelandair are the most popular airlines when flying from London Heathrow Airport to Portland, Maine.

What airport do you fly into for flights to Portland from London Heathrow?

Located just 2.9 mi from the city center, Portland is the airport most travelers will use when flying to Portland from London Heathrow. Booking flights from London Heathrow to Portland (PWM) should be relatively easy as there are 0 daily inbound flights from London Heathrow from 6 different airlines.

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

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

How can I find direct flights from Heathrow to Portland?

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

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

Yes. Cheapflights offers flight deals from Heathrow 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 London Heathrow Airport to Portland, Maine

Q: How much does it cost for a return flight from London Heathrow Airport to Portland, Maine?

Airfare is below average for this route at the moment. London Heathrow Airport to Portland, Maine flights typically cost between £513 and £579 in February. The cheapest return flight price found within the last 3 days was £466 on American Airlines (28 Feb-3 Mar).

Cheap flight deals from Heathrow to Portland

Round-trip from	£466
One-way from	£433
Popular in	December
Cheapest in	February
Average price	£541

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

Search Deals

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

Search Deals

Highest demand for flights based on searches. 4% potential increase in price (£20 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 4% potential price decrease (£20 potential savings vs. average return price).

Search Deals

Average for round-trip flights in September 2025

Search Deals

Find flight deals from Heathrow to Portland

Cheapest flights from Heathrow to Portland
Explore the most affordable flight options available from Heathrow to Portland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 17 September 2025.

Tue 14/1008:15LHR - PWM

1 stop19h 49mJetBlue

Tue 21/1007:09PWM - LHR

1 stop21h 21mJetBlue

Deal found 17/9£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

Mon 6/1011:20LHR - PWM

1 stop15h 59mDelta

Mon 20/1012:45PWM - LHR

1 stop15h 10mDelta

Deal found 16/9£488

Sat 27/908:40LHR - PWM

2 stops20h 54mDelta

Mon 6/1014:38PWM - LHR

1 stop15h 47mDelta

Deal found 15/9£493

Thu 30/1006:35LHR - PWM

2 stops21h 24mUnited Airlines

Thu 6/1119:44PWM - LHR

1 stop10h 21mUnited Airlines

Deal found 15/9£546

Fri 31/1006:35LHR - PWM

2 stops21h 24mUnited Airlines

Fri 7/1115:00PWM - LHR

1 stop12h 25mUnited Airlines

Deal found 16/9£547

Best flights from Heathrow to Portland
Discover carefully curated flight deals from Heathrow to Portland that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 17 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 29/1011:45LHR - 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

Last-minute flights from Heathrow to Portland
Discover last-minute flight deals from Heathrow to Portland. Data last updated 17 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

Mon 6/1011:20LHR - PWM

1 stop15h 59mDelta

Mon 20/1012:45PWM - LHR

1 stop15h 10mDelta

Deal found 16/9£488

Tue 14/1008:15LHR - PWM

1 stop19h 49mJetBlue

Tue 21/1007:09PWM - LHR

1 stop21h 21mJetBlue

Deal found 17/9£470

Wed 29/1006:30LHR - PWM

2 stops19h 49mVirgin Atlantic

Mon 10/1106:00PWM - LHR

2 stops19h 55mVirgin Atlantic

Deal found 16/9£474

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£546

Fri 31/1006:35LHR - PWM

2 stops21h 24mUnited Airlines

Fri 7/1115:00PWM - LHR

1 stop12h 25mUnited Airlines

Deal found 16/9£547

One-way flights from Heathrow to Portland
Search for one-way flight options from Heathrow to Portland. Find affordable one-way fares based on user searches. Data last updated 17 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£1,324

Fri 10/1021:25LHR - PWM

3 stops44h 41mMultiple Airlines

Deal found 15/9£1,519

Fri 10/1008:15LHR - PWM

1 stop19h 49mJetBlue

Deal found 15/9£1,983

Cheapflights Fare Finder

Use the filters below to find and compare flights from London Heathrow Airport 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

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

LondonPortland

LHR - PWM

LHRPWM

London Heathrow

Fri 28/11

13:10-22:54

1 stop14h 44m

£433

LondonPortland

LHR - PWM

LHRPWM

London Heathrow

Fri 28/11

11:45-23:54

2 stops17h 09m

£441

LondonPortland

LHR - PWM

LHRPWM

London Heathrow

Fri 26/9

14:10-14:52

3 stops53h 42m

£454

LondonPortland

LHR - PWM

LHRPWM

London Heathrow

Fri 26/9

14:10-13:00

2 stops51h 50m

£623

LondonPortland

LHR - PWM

LHRPWM

London Heathrow

Fri 26/9

11:55-22:07

1 stop15h 12m

£639

Flights are sorted by cheapest return flights first.

Deals found on 14/9

Showing 1-10 of 13 results

Best time to book a flight from Heathrow to Portland

Have a flexible travel schedule? Discover the best time to fly to Portland from Heathrow 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 London Heathrow Airport to Portland

Prices

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

When flying from London Heathrow Airport to Portland, Maine, the time of day you fly usually plays a role in the price. Save by searching for a flight in the afternoon, which can drop the price by up to 34% versus a flight at midday.

How much does it cost for a return flight from London Heathrow Airport to Portland, Maine?

Reviews of airlines servicing Portland

Check out reviews from past customers who have flown with KLM, Finnair, andUnited Airlines from London Heathrow Airport to Portland to help guide your decision. You can also see how each airline stacks up 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 London Heathrow?
Located just 2.9 mi from the city center, Portland is the airport most travelers will use when flying to Portland from London Heathrow. Booking flights from London Heathrow to Portland (PWM) should be relatively easy as there are 0 daily inbound flights from London Heathrow from 6 different airlines.
How long is the flight from London Heathrow Airport to Portland, Maine?
American Airlines, JetBlue, and Delta can get you from London Heathrow Airport to Portland, Maine in just under 15h 52m. Your travel time can differ by up to 3h 57m. The distance from London Heathrow Airport to Portland, Maine is about 3173 mi. This flight may include one or multiple stops.
What are the cheapest airlines flying from London Heathrow Airport to Portland, Maine round-trip?
According to our current data, Icelandair (£378), JetBlue (£392), and Virgin Atlantic (£464) offers the cheapest pricing from London Heathrow Airport to Portland, Maine. Users have found that Icelandair is 40% cheaper than the other options available to this destination.
Can I find deals for flights from Heathrow to Portland that include hotel bookings?
Yes. In addition to deals on Heathrow to Portland flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Heathrow to Portland?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Heathrow to Portland.
Can I find deals for business class flights from Heathrow to Portland?
Yes. Cheapflights offers flight deals from Heathrow 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 Heathrow to Portland

Heathrow to Boston flights

London City to Boston flights

Gatwick to Boston flights

Luton to Boston flights

Stansted to Boston flights

Southend to Boston flights

Heathrow to Bangor flights

Direct flights to United States

Top 6 airlines flying from Heathrow to Portland

Airline	Cheapest	Average	Flexibility	On-time
Icelandair	Cheapest£378	Average£582	FlexibilityNo cancel fee	On-time76%	Search Icelandair flights
JetBlue	Cheapest£392	Average£572	FlexibilityNo cancel fee	On-time62%	Search JetBlue flights
Virgin Atlantic	Cheapest£464	Average£633	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£610	FlexibilityNo cancel fee	On-time75%	Search KLM flights
United Airlines	Cheapest£547	Average£724	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights

Fly with Cheapflights

How does Cheapflights help users find flights from Heathrow to Portland?

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Portland from Heathrow today with Cheapflights!

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

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Portland from Heathrow.

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

Certainly. Search results for flights to Portland from Heathrow shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

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

Not ready to book yet? You can track prices for flights from Heathrow to Portland on Cheapflights with our Price Alert feature and get notified when better prices are available.

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Cheap flights from London Heathrow Airport 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 Heathrow to Portland

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Heathrow to Portland

Cheapest flights from Heathrow to PortlandExplore the most affordable flight options available from Heathrow to Portland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 17 September 2025.

Explore the most affordable flight options available from Heathrow to Portland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 17 September 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from London Heathrow Airport to Portland that are best for you.

Best time to book a flight from Heathrow to Portland

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

Cheapflights Insights

Everything you need to know about your flight from London Heathrow Airport to Portland

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

How much does it cost for a return flight from London Heathrow Airport to Portland, Maine?

What’s the top stopover airport for flights from London Heathrow Airport to Portland, Maine?

What’s the fastest stopover option from London Heathrow Airport to Portland, Maine?

What’s the fastest stopover option from London Heathrow Airport to Portland, Maine?

Which airport typically offers the quickest stopover for flights from London Heathrow Airport to Portland, Maine?

Reviews of airlines servicing Portland

Check out reviews from past customers who have flown with KLM, Finnair, andUnited Airlines from London Heathrow Airport to Portland to help guide your decision. You can also see how each airline stacks up 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 Heathrow 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 London Heathrow?

How long is the flight from London Heathrow Airport to Portland, Maine?

What are the cheapest airlines flying from London Heathrow Airport to Portland, Maine round-trip?

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

How can I find direct flights from Heathrow to Portland?

Can I find deals for business class flights from Heathrow 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 Heathrow to Portland

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

Top 6 airlines flying from Heathrow 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 Heathrow to Portland?

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

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

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

100% Free

Book with Flexibility

Travel Smart

Cheapest flights from Heathrow to Portland
Explore the most affordable flight options available from Heathrow to Portland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 17 September 2025.