Cheap flights from London to Portland from £244
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from London to Portland departing on 22/9. 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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British Airways flights from London to Portland
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American Airlines flights from London to Portland
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How to get the cheapest flight ticket from London to Portland
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 and Portland?
What is the cheapest month to fly to Portland?
The cheapest month to fly to Portland from London is in March. Flight prices, which tend to average around £559, are often lower during this time because this is during the off-season. If you don’t want to visit Portland in March, then you should wait until February to fly from London, when ticket prices are also cheap, with an average price of £564.
What is the cheapest day to depart on your flight to Portland?
The cheapest day to depart on your flight to Portland is on a Tuesday when prices can be found for as low as £664. This is often the case because there is less demand to fly during this day of the week. The most expensive day to fly to Portland is Sunday, with ticket prices averaging around £780.
What is the cheapest time of day to depart on your flight to Portland?
Flying to Portland from London in the morning is the least expensive time of day to depart. momondo users have found prices as low as £605 when looking at flights departing in the morning. Try not to purchase tickets in the afternoon because they tend to be around £758. Of course, these prices can vary depending on the time of year and what airport you fly to.
What is the cheapest London to Portland flight route?
Fly from London Heathrow to Portland for the best London - Portland flight prices
How far in advance should I book a flight to Portland?
You are more likely to see cheaper flights to Portland from London when booking 8 weeks ahead of your departure date. In general, you can expect to find flights to Portland for around £662 when searching 8 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Portland from London for as low as £595 on momondo.
What cabin class options are available on London to Portland flights?
There are 3 cabin classes available to choose from on London to Portland flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.
What is the cheapest airline that flies from London to Portland?
WestJet is the most popular carrier operating from London to Portland
Which airlines fly to Portland?
British Airways, Finnair and Virgin Atlantic are the top three most popular airlines that fly to Portland from London according to our data. British Airways is the first choice among our users, with 57% of people opting to fly with this airline when travelling to Portland. Keep in mind that there are 9 different airlines that fly to Portland on a routine basis, so you have a few additional options to choose from.
How many flights depart from London to Portland on average per day?
7 flights are operational daily from London to Portland as of June 2025. The most popular departure time for this route is 15:00, with 100% of flights per day taking off in the afternoon.
How many flights depart from London to Portland on average per week?
The number of flights available between London and Portland is 49 per week as of June 2025. The most frequent departure day is Mon, with 14% of weekly flights leaving on this day.
When to book flights from London to Portland
Cheap London to Portland (LON to PDX) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from London to Portland
How far is London to Portland by plane?
The straight-line distance from London to Portland is 4909.8 mi. Flights usually cover this in 9h 55m, depending on flying conditions and air traffic around both airports.
When did momondo last update prices for flights from London to Portland Airport?
Prices for flights from London to Portland Airport are refreshed on a daily basis.
How many operators does momondo search for flights from London to Portland Airport?
As of June 2025, there are 9 operators available to choose from for flights from London to Portland Airport.
How old do you have to be to fly from London 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 to Portland Airport.
What documentation or ID do you need to fly to Portland Airport?
The travel and health documents you'll need for your trip to Portland Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Portland Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from London to Portland?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from London to Portland is Boeing 787-10 Dreamliner (68.37% of total bookings). The next most popular plane models are Boeing 787-8 Dreamliner (13.01%), Boeing 787-9 Dreamliner (12.30%), and Airbus A330-900neo (1.29%).
What is the most popular airline from London to Portland?
momondo data reveals that the most frequently booked airline on the route from London to Portland is British Airways, representing 43% of all bookings. The subsequent popular airlines are Finnair at 18%, Icelandair at 11%, and Virgin Atlantic at 8%.
Best airlines flying from London to Portland
Compare and see reviews for airlines that fly from London to Portland with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom £433 | Free Cancellation | Rating 7.0 499 reviews | |||
| PriceFrom £481 | Free Cancellation | Rating 7.6 1,290 reviews | |||
| PriceFrom £483 | Free Cancellation | Rating 7.4 8,790 reviews | |||
| PriceFrom £491 | Free Cancellation | Rating 7.1 9,531 reviews | |||
| PriceFrom £501 | Free Cancellation | Rating 7.4 652 reviews | |||
| PriceFrom £503 | Free Cancellation | Rating 6.6 7,011 reviews | |||
| PriceFrom £511 | Free Cancellation | Rating 6.7 7,136 reviews | |||
| PriceFrom £549 | Free Cancellation | Rating 7.8 1,358 reviews | |||
| PriceFrom £566 | Free Cancellation | Rating 7.0 2,776 reviews |
Finnair Flights From London to Portland
Across 7 Finnair flights from London to Portland this week, the average price was £801, with the best Finnair deals starting from £653 round-trip. 1,290 users have rated Finnair on momondo, with an average score of 7.6/10.
Iberia Flights From London to Portland
£769 is the best Iberia flight deal from London to Portland found on momondo over the last 72 hours. The average Iberia ticket price found was closer to £1,022, however, with flight time and availability significantly affecting the price. Iberia (7.0/10 from 2,776 user reviews) flies into Portland from London 7 times in an average week so prices can vary.
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?
We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from London to Portland for you.
Can I find flights from London to Portland with flexible booking policies on momondo?
Yes. momondo allows you to filter the results for London to Portland flights to just show those with flexible booking policies.
How can momondo help me find flights from London to Portland?
momondo provides multiple filters to help you find the best flight to Portland from London. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.
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.