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

Flying on JetBlue is currently your cheapest option to London Heathrow Airport, with prices starting at £479. Additional return tickets that might be worth considering are offered by Scandinavian Airlines and American Airlines, with the lowest prices starting at £578 and £589, respectively. Users have found that JetBlue is 38% cheaper than the other options available to this destination.

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

Flights from Portland, Maine to London Heathrow Airport lean towards being more expensive in July. Prices are generally better when you fly from Portland, Maine to London Heathrow Airport in February, with the cheapest ticket starting at £484.

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

When flying from Portland, Maine to London Heathrow Airport, 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 from for flights from Portland to London Heathrow?

For a flight from Portland to London Heathrow, you will be flying from Portland. Portland (PWM) is just 2.9 mi from the center of the city. Portland is the only Portland airport and it handles 0 outbound flights to London Heathrow per day. 0 airlines have flights to London Heathrow from Portland on a regular basis.

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

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

How can I find direct flights from Portland to Heathrow?

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

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

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

£352+ Flights from Portland, Maine to London Heathrow Airport

Cheap flight deals from Portland to Heathrow

Round-trip from	£479
One-way from	£352
Popular in	June
Cheapest in	February
Average price	£896

JetBlue
24/4-1/5
2 total stops
25h 25m total
Portland to London

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JetBlue
8/5
1 total stop
10h 40m total
Portland to London

Search Deals

High demand for flights, 20% potential price rise

Search Deals

Best time to find cheap flights, 4% potential price drop

Search Deals

Average for round-trip flights in December 2024

Search Deals

Find flight deals from Portland to Heathrow

Cheapest flights from Portland to Heathrow
Explore the most affordable flight options available from Portland to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 23 December 2024.

Sun 29/1206:00PWM - LHR

2 stops33h 35mAir Canada

Sun 5/114:30LHR - PWM

2 stops37h 50mAir Canada

Deal found 22/12£1,406

Sun 29/1206:05PWM - LHR

1 stop23h 30mVirgin Atlantic

Sun 5/114:30LHR - PWM

1 stop14h 38mVirgin Atlantic

Deal found 22/12£1,740

Mon 23/1212:15PWM - LHR

1 stop13h 10mDelta

Thu 2/114:30LHR - PWM

1 stop14h 40mDelta

Deal found 22/12£2,071

Sun 29/1206:00PWM - LHR

3 stops19h 30mMultiple Airlines

Sun 5/111:10LHR - PWM

2 stops17h 27mMultiple Airlines

Deal found 22/12£3,161

Sun 22/1216:05PWM - LHR

1 stop11h 20mUnited Airlines

Sat 28/1210:00LHR - PWM

1 stop13h 24mUnited Airlines

Deal found 22/12£3,218

Mon 23/1211:12PWM - LHR

2 stops18h 13mAustrian Airlines

Thu 2/118:00LHR - PWM

1 stop29h 24mAustrian Airlines

Deal found 22/12£4,660

Best flights from Portland to Heathrow
Discover carefully curated flight deals from Portland to Heathrow that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 23 December 2024.

Thu 24/417:35PWM - LHR

1 stop10h 55mJetBlue

Thu 1/507:25LHR - PWM

1 stop14h 30mJetBlue

Deal found 22/12£479

Wed 12/215:04PWM - LHR

2 stops13h 16mScandinavian Airlines

Wed 19/219:30LHR - PWM

2 stops33h 26mScandinavian Airlines

Deal found 23/12£578

Wed 12/212:48PWM - LHR

1 stop15h 32mAmerican Airlines

Wed 19/209:50LHR - PWM

2 stops17h 51mAmerican Airlines

Deal found 23/12£589

Tue 21/106:00PWM - LHR

2 stops20h 10mMultiple Airlines

Tue 28/119:25LHR - PWM

2 stops32h 05mMultiple Airlines

Deal found 21/12£596

Tue 21/118:05PWM - LHR

1 stop11h 10mUnited Airlines

Tue 28/115:00LHR - PWM

2 stops28h 42mUnited Airlines

Deal found 21/12£597

Tue 21/115:02PWM - LHR

1 stop11h 53mKLM

Tue 28/110:10LHR - PWM

1 stop18h 47mKLM

Deal found 21/12£615

Thu 24/410:32PWM - LHR

3 stops18h 28mAir Canada

Thu 1/508:30LHR - PWM

3 stops19h 48mAir Canada

Deal found 22/12£706

Thu 2/105:05PWM - LHR

1 stop20h 45mDelta

Tue 14/106:30LHR - PWM

2 stops22h 27mDelta

Deal found 22/12£1,071

Last-minute flights from Portland to Heathrow
Discover last-minute flight deals from Portland to Heathrow. Data last updated 23 December 2024 and is based on user searches.

Mon 23/1211:12PWM - LHR

2 stops18h 13mAustrian Airlines

Thu 2/118:00LHR - PWM

1 stop29h 24mAustrian Airlines

Deal found 22/12£4,660

Sun 29/1206:00PWM - LHR

2 stops33h 35mAir Canada

Sun 5/114:30LHR - PWM

2 stops37h 50mAir Canada

Deal found 22/12£1,406

Sun 29/1206:05PWM - LHR

1 stop23h 30mVirgin Atlantic

Sun 5/114:30LHR - PWM

1 stop14h 38mVirgin Atlantic

Deal found 22/12£1,740

Sun 29/1206:00PWM - LHR

3 stops19h 30mMultiple Airlines

Sun 5/111:10LHR - PWM

2 stops17h 27mMultiple Airlines

Deal found 22/12£3,161

Thu 2/105:05PWM - LHR

1 stop20h 45mDelta

Tue 14/106:30LHR - PWM

2 stops22h 27mDelta

Deal found 22/12£1,071

Thu 2/112:15PWM - LHR

3 stops21h 20mScandinavian Airlines

Tue 14/106:40LHR - PWM

2 stops22h 17mScandinavian Airlines

Deal found 22/12£1,188

Tue 21/106:00PWM - LHR

2 stops20h 10mMultiple Airlines

Tue 28/119:25LHR - PWM

2 stops32h 05mMultiple Airlines

Deal found 21/12£596

Tue 21/118:05PWM - LHR

1 stop11h 10mUnited Airlines

Tue 28/115:00LHR - PWM

2 stops28h 42mUnited Airlines

Deal found 21/12£597

Tue 21/115:02PWM - LHR

1 stop11h 53mKLM

Tue 28/110:10LHR - PWM

1 stop18h 47mKLM

Deal found 21/12£615

Tue 21/111:36PWM - LHR

3 stops17h 44mAir Canada

Tue 28/109:00LHR - PWM

3 stops30h 32mAir Canada

Deal found 21/12£790

Find flights from Portland to Heathrow within your budget

Fly from

Fly to

Route

Depart

Return

Price

PortlandLondon

PWM - LHR

PWMLHR

Portland

Thu 24/4

17:35-09:30

1 stop10h 55m

London Heathrow

Thu 1/5

07:25-16:55

1 stop14h 30m

£479

PortlandLondon

PWM - LHR

PWMLHR

Portland

Wed 12/2

15:04-09:20

2 stops13h 16m

London Heathrow

Wed 19/2

19:30-23:56

2 stops33h 26m

£578

PortlandLondon

PWM - LHR

PWMLHR

Portland

Wed 12/2

12:48-09:20

1 stop15h 32m

London Heathrow

Wed 19/2

09:50-22:41

2 stops17h 51m

£589

PortlandLondon

PWM - LHR

PWMLHR

Portland

Tue 21/1

06:00-07:10

2 stops20h 10m

London Heathrow

Tue 28/1

19:25-22:30

2 stops32h 05m

£596

PortlandLondon

PWM - LHR

PWMLHR

Portland

Tue 21/1

18:05-10:15

1 stop11h 10m

London Heathrow

Tue 28/1

15:00-14:42

2 stops28h 42m

£597

PortlandLondon

PWM - LHR

PWMLHR

Portland

Tue 21/1

15:02-07:55

1 stop11h 53m

London Heathrow

Tue 28/1

10:10-23:57

1 stop18h 47m

£615

PortlandLondon

PWM - LHR

PWMLHR

Portland

Thu 24/4

10:32-10:00

3 stops18h 28m

London Heathrow

Thu 1/5

08:30-23:18

3 stops19h 48m

£706

PortlandLondon

PWM - LHR

PWMLHR

Portland

Thu 2/1

05:05-06:50

1 stop20h 45m

London Heathrow

Tue 14/1

06:30-23:57

2 stops22h 27m

£1,071

PortlandLondon

PWM - LHR

PWMLHR

Portland

Thu 8/5

17:50-09:30

1 stop10h 40m

£352

PortlandLondon

PWM - LHR

PWMLHR

Portland

Thu 8/5

06:00-21:00

2 stops34h 00m

£463

Flights are sorted by cheapest return flights first.

Deals found on 23/12

Best time to book a flight from Portland to Heathrow

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

Travel insights for flights from Portland to Heathrow

Get recent, data-driven insights about flights from Portland to Heathrow including ideal travel times, pricing trends, and more.

What is the cheapest month to book a flight from Portland, Maine to London Heathrow Airport?

Currently, January is the cheapest month in which you can book a flight from Portland, Maine to London Heathrow Airport (average of £112). Flying from Portland, Maine to London Heathrow Airport in July is currently the most expensive (average of £160). 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.

Rainfall in Heathrow by month

In terms of precipitation, rainfall in London Heathrow Airport ranges from 40.0 - 70.0 inches per month. January is typically the wettest month, when rainfall can reach 70.0 mm. July is typically the driest time to visit London Heathrow Airport when rainfall is around 40.0 mm.

Temperature in Heathrow by month

If weather is an important factor for your trip to London Heathrow Airport, 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 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 4.0 C).

Reviews of airlines servicing Heathrow

See what other customers who have flown with Scandinavian Airlines and Air Canada from Portland to London have to say. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very Good

8,588 reviews

Check prices

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Delta

8.0

Very Good

8,588 reviews

Delta

8.0

Very Good

8,588 reviews

Check prices

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

KLM

7.8

Good

1,345 reviews

Delta

8.0

Very Good

8,588 reviews

Check prices

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

JetBlue

7.4

Good

3,263 reviews

Delta

8.0

Very Good

8,588 reviews

Check prices

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

United Airlines

7.4

Good

9,020 reviews

Delta

8.0

Very Good

8,588 reviews

Check prices

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Scandinavian Airlines

7.3

Good

1,309 reviews

Delta

8.0

Very Good

8,588 reviews

Check prices

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Related info for your journey

What airport do you fly from for flights from Portland to London Heathrow?
For a flight from Portland to London Heathrow, you will be flying from Portland. Portland (PWM) is just 2.9 mi from the center of the city. Portland is the only Portland airport and it handles 0 outbound flights to London Heathrow per day. 0 airlines have flights to London Heathrow from Portland on a regular basis.
What are the cheapest airlines flying from Portland, Maine to London Heathrow Airport round-trip?
Flying on JetBlue is currently your cheapest option to London Heathrow Airport, with prices starting at £479. Additional return tickets that might be worth considering are offered by Scandinavian Airlines and American Airlines, with the lowest prices starting at £578 and £589, respectively. Users have found that JetBlue is 38% cheaper than the other options available to this destination.
Can I find deals for flights from Portland to Heathrow that include hotel bookings?
Yes. In addition to deals on Portland to Heathrow flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Portland to Heathrow?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Portland to Heathrow.
Can I find deals for business class flights from Portland to Heathrow?
Yes. Cheapflights offers flight deals from Portland to Heathrow 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 Portland, Maine to London Heathrow Airport?
Currently, January is the cheapest month in which you can book a flight from Portland, Maine to London Heathrow Airport (average of £112). Flying from Portland, Maine to London Heathrow Airport in July is currently the most expensive (average of £160). 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.

See more FAQs

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

Deals for Portland to Heathrow flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

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

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 Portland to Heathrow.

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

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

Can Cheapflights notify me if prices for flights from Portland to Heathrow 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 Portland, Maine to London Heathrow Airport from £352

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 8/5. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Portland to Heathrow

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Portland to Heathrow

Cheapest flights from Portland to HeathrowExplore the most affordable flight options available from Portland to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 23 December 2024.

Explore the most affordable flight options available from Portland to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 23 December 2024.

Find flights from Portland to Heathrow within your budget

Best time to book a flight from Portland to Heathrow

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

Travel insights for flights from Portland to Heathrow

Get recent, data-driven insights about flights from Portland to Heathrow including ideal travel times, pricing trends, and more.

What is the cheapest month to book a flight from Portland, Maine to London Heathrow Airport?

Rainfall in Heathrow by month

Plan your trip to Heathrow by taking into account the average rainfall totals by month.

Temperature in Heathrow by month

Plan your trip to Heathrow by taking into account the average temperature totals by month.

Reviews of airlines servicing Heathrow

See what other customers who have flown with Scandinavian Airlines and Air Canada from Portland to London have to say. 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 Portland to Heathrow. 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 from for flights from Portland to London Heathrow?

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

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

How can I find direct flights from Portland to Heathrow?

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

What is the cheapest month to book a flight from Portland, Maine to London Heathrow Airport?

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 Portland to Heathrow

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

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 Portland to Heathrow?

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

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

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

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Cheapest flights from Portland to Heathrow
Explore the most affordable flight options available from Portland to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 23 December 2024.