Cheap flights from London to Portland from $296
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 5/14. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
Discover deals from 900+ travel sites with momondo.
Save money when you book flights with momondo
Big names and deals
Big names and deals
Search 100s of travel sites to compare prices.Filter for what you want
Filter for what you want
Free Wi-Fi? Stopover? Instantly customize your results.Trusted and free
Trusted and free
We’re completely free to use - no hidden charges or fees.Price Alerts
Price Alerts
Not ready to book? to track prices.Find the cheapest flights from London to Portland
Cheap round-trip flights
Cheap one-way flights
Cheap last minute flights
Cheap direct flights
Lufthansa flights from London to Portland
Our best Lufthansa deals on London to Portland flight tickets
Scandinavian Airlines flights from London to Portland
Our best Scandinavian Airlines deals on London to Portland flight tickets
See travel insights to Portland from
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 $757, 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 $768.
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 Friday when prices can be found for as low as $949. 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 Saturday, with ticket prices averaging around $1,278.
What is the cheapest time of day to depart on your flight to Portland?
The cheapest time of day to fly to Portland is in the afternoon when flights can be purchased for as low as $1,068. In the morning is when there is more demand to fly to Portland, so prices are often more expensive at around $1,188 per ticket.
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 $911 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 $818 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, Icelandair, and Lufthansa are the most popular carriers operating from London to Portland
What airlines fly to Portland?
British Airways, American Airlines and Iberia 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 48% of people opting to fly with this airline when traveling to Portland. Keep in mind that there are 4 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?
As of April 2025, there are 7 flights per day flying from London to Portland. The most common time of day flights depart is 3:00PM, with 100% of flights 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 April 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 distance between London and Portland is about 4909.8 mi. Typically, this will take 9h 55m by plane in normal conditions.
When did momondo last update prices for flights from London to Portland Airport?
Prices for flights from London to Portland Airport are updated daily.
How many operators does momondo search for flights from London to Portland Airport?
There are 4 operators available for flights from London to Portland Airport as of April 2025.
How old do you have to be to fly from London to Portland Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for 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 (67.50% of total bookings). The next most popular plane models are Boeing 787-8 Dreamliner (15.46%), Boeing 787-9 Dreamliner (10.82%), and Boeing 777 (1.20%).
What is the most popular airline from London to Portland?
Based on momondo bookings for this flight route, the most popular airline on flight routes from London to Portland is British Airways (45% of total bookings). The next most popular airlines are Icelandair (15%), American Airlines (14%), and Delta (14%).
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 $701 | Free Cancellation | Rating 7.4 8,667 reviews | |||
| PriceFrom $733 | Free Cancellation | Rating 6.6 6,767 reviews | |||
| PriceFrom $801 | Free Cancellation | Rating 7.0 2,676 reviews | |||
| PriceFrom $818 | Free Cancellation | Rating 7.2 10,000 reviews |
American Airlines Flights From London to Portland
American Airlines is one of the most popular airlines flying from London to Portland, operating 7 flights/week on average for this route. A good American Airlines flight deal for London to Portland starts from $818 round-trip, up to an average price of $1,067. Our users have rated American Airlines at 7.2/10.
Iberia Flights From London to Portland
Across 2,676 Iberia reviews on momondo, the average score is 7.0/10. Iberia flies from London to Portland about 7 times each week, with ticket deals ranging from $801 to $1,256. Price data is based on momondo searches in the last 72 hours.
Traveling 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?
If you are not ready to book a flight from London to Portland now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Portland and let you know when they change.