Cheap Flights from London to Portland

Compare London to Portland flight deals

Find the cheapest month or even day of the year to fly to Portland

Book the best Portland fare with no extra fees

Flight deals from London to Portland

Looking for a cheap last-minute deal or the best return flight from London to Portland? Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from London to Portland

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like London to Portland flights are currently cheapest in January.

Direct flights from London to Portland

London to Portland: Alternative routes

Compare routes from London to Portland below. You may find an airport to fly into that's cheaper, faster, or easier than Portland.

London to Portland: Flight information

The things to know before you go.
Cheapest flight foundج.م.‏ 15,967
Cheapest month to flyJanuary
Average flight time10 hrs, 9 mins
Most popular airlineAer Lingus
Average flights per week48

Finding cheap flights from London to Portland: Frequently asked questions

The best price we found for a return flight from London to Portland is ج.م.‏ 29,684. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
10 hours and 9 minutes is the average flight time from London to Portland.
Aer Lingus, Alaska Airlines and American Airlines fly direct from London to Portland.
As of October 2024, there are 48 flights per week flying from London to Portland.
The cheapest month to fly from London to Portland is usually October 2024.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from London to Portland Airport on Sunday, 2 February 2025.
Yes – the average flight time is 10 hours and 9 minutes.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Portland but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Portland is around 40 days in advance, so don’t leave your flight to the last minute.

How to find cheap flights to Portland from London

Looking for cheap tickets from London to Portland? Here are a few tips on how to secure the best flight price and make your journey as smooth as possible.

  • Simply hit 'search'. From British Airways to international carriers like Emirates, we compare all major airlines along with the most popular online travel agents to find the cheapest plane tickets from London to Portland. And with us there are no hidden fees - what you see is what you pay.
  • Compare flight deals to Portland from London from over 1,000 providers. Then choose the cheapest or fastest plane tickets.
  • Flex your dates to find the best London-Portland ticket prices. If you are flexible when it comes to your travel dates, use Skyscanner's 'Whole month' tool to find the cheapest month, and even day to fly to Portland from London.
  • Set up a Price Alert. You can easily track the fare of your cheap London-Portland flights by creating an alert. Whenever prices go down or up, you'll get an email or push notification to help make sure you get the best possible flight deal.
  • Fly without stops. Only interested in direct flights between London and Portland? Make sure to tick 'Direct flights only' when performing a search. If there are direct flights available on the route, these will appear in the results.
  • Find the cheapest Business class flights from London and Portland. We scour the internet for the best Business, Premium Economy and First Class flight fares to Portland, too. Check the difference in price as you search – you might just chance upon a last-minute low fare. Note that not all cabin classes are available for every destination or airline.
  • Include nearby airports in your search. Widen your search for London to Portland flight deals by selecting the "add nearby airports" option. This will allow you to see flight prices for all the nearest airports at your departure point and your destination and could help you save next time you travel.
  • Combine your flight to Portland from London with hotels and car hire

    Once you've secured your cheap flight ticket from London to Portland, discover the best prices and exclusive rates for hotels in Portland or nearby. You can also compare hundreds of car hire companies in one go so that you get the best car hire price for your trip.


Prices shown on this page are estimated lowest prices only. Found in the last 45 days.