Portland → London flights
Last observed price · Last checked: 24 Aug 2026 · Price may change
Short answer
The lowest fare our own searches returned is €736, seen on 24 Aug 2026. The average across the fares we caught is €795. September 2026 is the cheapest month in our observations, at €736. These are prices our searches returned on the dates shown, not quotes; run a live search for today's fare.
Tickets found in the last 7 days
The lowest fares our queries caught, cheapest first.
€75111 Sep 2026 → 12 Oct 2026Icelandair · 3 stops · 19:00Last checked: 24 Aug 2026 · Price may change31 nightsView ticket →€7619 Sep 2026 → 14 Oct 2026Icelandair · 3 stops · 19:00Last checked: 24 Aug 2026 · Price may change35 nightsView ticket →AC€76716 Sep 2026 → 12 Oct 2026Air Canada · 3 stops · 19:45Last checked: 24 Aug 2026 · Price may change26 nightsView ticket →
€78115 Sep 2026 → 12 Oct 2026KLM · 3 stops · 13:05Last checked: 24 Aug 2026 · Price may change27 nightsView ticket →
€8387 Sep 2026 → 12 Oct 2026Condor · 2 stops · 15:30Last checked: 24 Aug 2026 · Price may change35 nightsView ticket →€92930 Aug 2026 → 6 Sep 2026Icelandair · 3 stops · 19:00Last checked: 24 Aug 2026 · Price may change7 nightsView ticket →Starting prices by month
The lowest fare our queries observed in each month. Open a month to see its days; click a day with no price and we will search it for you.
Route facts
Frequently asked
Are there direct flights from Portland to London?+−
Our data holds no non-stop flight from Portland to London. The fares on this page include at least one stop.
How much is a flight from Portland to London?+−
The lowest fare we have observed is €736, found on 24 Aug 2026. Prices move, so read it as a floor rather than a quote.
When is the cheapest month to fly from Portland to London?+−
In our observations September 2026 is the cheapest month so far, at €736.
Similar routes
More routes from Portland
More routes to London
Last checked: 24 Aug 2026