Cheap flights from London Heathrow Airport to Portland from £467
This is the cheapest return flight price found by a momondo user in the last 72 hours by searching for a flight from London Heathrow Airport to Portland departing on 27/8. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Icelandair flights from London Heathrow Airport to Portland, Maine
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How to get the cheapest flight ticket from London Heathrow Airport to Portland, Maine
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the typical price of a round-trip flight between London Heathrow Airport and Portland, Maine?
What is the cheapest month to fly to Portland, Maine?
The cheapest month to fly to Portland, Maine from London Heathrow Airport is in February. Flight prices, which tend to average around £498, are often lower during this time because this is during the off-season. The month of January is another great option to travel to Portland, Maine, with average flight prices from London Heathrow Airport averaging around £524.
What is the cheapest day to depart on your flight to Portland, Maine?
According to our data, Monday is the cheapest day to fly to Portland, Maine from London Heathrow Airport. The lowest ticket price found for a Monday departure recently was £630. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. Be sure to avoid booking your departure on a Friday as prices are generally higher than usual. According to our data, the average ticket price to Portland, Maine on Friday is £768.
What is the cheapest time of day to depart on your flight to Portland, Maine?
Our data shows that the cheapest London Heathrow Airport to Portland, Maine flights are usually those with departure times in the evening. Our users have found flights to Portland, Maine in the evening for as low as £590. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are £775 on average. Flights to Portland, Maine from London Heathrow Airport in the afternoon are generally more expensive because this time of day is more convenient for travellers’ schedules.
Can stopping save me money on London Heathrow Airport to Portland, Maine flights?
You could potentially save up to 23% on your flight if you consider stops on a London Heathrow Airport to Portland, Maine flight.
What is the cheapest airline that flies from London Heathrow to Portland?
JetBlue, WestJet, and Austrian Airlines are the most popular carriers operating from London Heathrow to Portland
Which airlines fly to Portland, Maine?
British Airways, Virgin Atlantic and KLM are the top three most popular airlines that fly to Portland, Maine from London Heathrow Airport according to our data. British Airways is the first choice among our users, with 44% of people opting to fly with this airline when travelling to Portland, Maine. Keep in mind that there are 17 different airlines that fly to Portland, Maine on a routine basis, so you have a few additional options to choose from.
When to book flights from London Heathrow Airport to Portland, Maine
Cheap London Heathrow Airport to Portland, Maine (LHR to PWM) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from London Heathrow Airport to Portland, Maine
Best price found | £610 |
|---|---|
Fastest flight time | 12h 17m |
Direct flights | None |
Airports in Portland, Maine | 1 airport |
How far is London Heathrow to Portland by plane?
A flight from London Heathrow to Portland will travel around 3170.3 mi. Flights usually cover this in 12h 17m, depending on flying conditions and air traffic around both airports.
When did momondo last update prices for flights from London Heathrow Airport to Portland Airport?
Prices for flights from London Heathrow Airport to Portland Airport are updated daily.
How many operators does momondo search for flights from London Heathrow Airport to Portland Airport?
As of June 2025, there are 7 operators available to choose from for flights from London Heathrow Airport to Portland Airport.
How old do you have to be to fly from London Heathrow Airport to Portland Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from London Heathrow Airport to Portland Airport.
What documentation or ID do you need to fly to Portland Airport?
The travel and health documents required for your trip to Portland Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Portland Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular airline from London Heathrow Airport to Portland, Maine?
momondo data reveals that the most frequently booked airline on the route from London Heathrow Airport to Portland, Maine is Finnair, representing 21% of all bookings. The subsequent popular airlines are United Airlines at 21%, JetBlue at 17%, and Icelandair at 11%.
Best airlines flying from London Heathrow Airport to Portland, Maine
Compare and see reviews for airlines that fly from London Heathrow Airport to Portland, Maine with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom £379 | Free Cancellation | Rating 7.0 499 reviews | |||
| PriceFrom £395 | Free Cancellation | Rating 7.3 2,925 reviews | |||
| PriceFrom £464 | Free Cancellation | Rating 7.4 652 reviews | |||
| PriceFrom £466 | Free Cancellation | Rating 7.6 1,290 reviews | |||
| PriceFrom £477 | Free Cancellation | Rating 7.8 1,358 reviews | |||
| PriceFrom £506 | Free Cancellation | Rating 6.7 7,139 reviews | |||
| PriceFrom £549 | Free Cancellation | Rating 7.4 8,790 reviews |
Travelling to a place near Portland?
Book flights to Portland if you plan to visit one of these locationsWhy use momondo?
Why should I use momondo to find a flight deal from London to Portland?
To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Portland from London.
Can I find flights from London to Portland with flexible booking policies on momondo?
All flight searches from London to Portland on momondo can be filtered to show those which offer flexible booking policies.
How can momondo help me find flights from London to Portland?
momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from London to Portland.
I’m not ready to book a flight from London to Portland right now. Can momondo alert me if prices change?
Price alerts on flights to Portland from London are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.