Question 1

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

Accepted Answer

Chicago (ORD) is the most affordable one-stop option, with an average return flight price of £467.

Question 2

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

Accepted Answer

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

Question 3

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

Accepted Answer

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

Question 4

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

Accepted Answer

Flights via Washington, D.C. (IAD) have the shortest average one-way travel time for one-stop routes: 12h 02m.

Question 5

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

Accepted Answer

JetBlue and Virgin Atlantic can get you from London Heathrow Airport to Portland, Maine in just under 19h 31m. Your travel time can differ by up to 18m. The distance from London Heathrow Airport to Portland, Maine is about 3173 mi. This flight may include one or multiple stops.

Question 6

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

Accepted Answer

According to our current data, Icelandair (£381), JetBlue (£395), and Virgin Atlantic (£466) offers the cheapest pricing from London Heathrow Airport to Portland, Maine. Users have found that Icelandair is 41% cheaper than the other options available to this destination.

Question 7

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

Accepted Answer

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.

Question 8

E

Accepted Answer

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.

Question 9

E

Accepted Answer

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).

Question 10

What are the most popular airlines that fly from London Heathrow Airport to Portland, Maine?

Accepted Answer

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

Question 11

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

Accepted Answer

It’s generally more expensive to depart on a Wednesday, if you have to leave on this day you can still search on Cheapflights to find great options that meet your needs.

Question 12

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

Accepted Answer

Due to multiple factors, expect to potentially pay more when booking in August. For low rates, February can be a great choice for travel to Portland, Maine. Flights to Portland, Maine from London Heathrow Airport in February are about £646 on average during February, but can be found for as low as £478.

Question 13

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

Accepted Answer

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.

Question 14

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

Accepted Answer

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.

Question 15

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

Accepted Answer

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

Question 16

How can I find direct flights from Heathrow to Portland?

Accepted Answer

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

Question 17

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

Accepted Answer

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.

Question 18

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

Accepted Answer

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!

Question 19

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

Accepted Answer

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.

Question 20

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

Accepted Answer

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.

Question 21

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

Accepted Answer

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.

Round-trip from	£460
One-way from	£460
Popular in	December
Cheapest in	February
Average price	£539

Airline	Cheapest	Average	Flexibility	On-time
Icelandair	Cheapest£381	Average£587	FlexibilityNo cancel fee	On-time76%	Search Icelandair flights
JetBlue	Cheapest£395	Average£576	FlexibilityNo cancel fee	On-time62%	Search JetBlue flights
Virgin Atlantic	Cheapest£466	Average£638	FlexibilityNo cancel fee	On-time72%	Search Virgin Atlantic flights
Finnair	Cheapest£468	Average£577	FlexibilityNo cancel fee	On-time76%	Search Finnair flights
KLM	Cheapest£479	Average£615	FlexibilityNo cancel fee	On-time75%	Search KLM flights
United Airlines	Cheapest£551	Average£731	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights

Cheap flights from London Heathrow Airport to Portland, Maine from £460

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 14/10. 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 2 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 2 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?

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 2 September 2025.