£399 Find Cheap Flights from London to Portland – Compare and Save

In the last 5 days, the lowest price for a flight from London to Portland was £399 for a one-way ticket and £612 for a return.

There are 4 airports in London (London Gatwick, London Heathrow, London Luton, and London Stansted.) and only 1 airport in Portland (Portland). The cheapest flights are generally found on the London Heathrow Airport to Portland flight route.

We unfortunately don’t have that data for this specific route.

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from London to Portland.

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Portland from London is likely to change within 7 days, so travelers know whether to wait or book now.

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly to Portland with an airline and back to London with another airline.

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Portland from London up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.