Los Angeles (LAX) to London (LON): 5,443 miles (8,760 km) great-circle, about 11h 25m nonstop by our estimate. Cheapest fare observed: $855 round-trip on Air Canada, with 1 stop, departing May 12, 2026.
$855 round-trip, Air Canada AC555, departing 2026-05-12 at 12:20, returning 2026-05-19. The recorded itinerary left on a Tuesday, returning on a Tuesday 7 nights later; the fare was observed 17 days before departure. "Book this flight" opens Kiwi.com with the same airline and dates.
At $855, it ranked 20th of the 30 round-trip fares we recorded from LAX (median $302). That is 15.7 cents per great-circle mile (round-trip price over one-way distance), close to the LAX median of 15.3 cents across 30 round-trip routes.
Routes from LAX of similar length: Tokyo (5,476 mi) at $1101 and St. Petersburg (5,718 mi) at $1348.
LAX to LON is the only one of 30 LAX routes where Air Canada priced cheapest. It is the 12th longest of the 30 routes we track from LAX.
Of 49 departure airports with a fare to London, Los Angeles (LAX) ranked 32nd at $855. Lowest: $46 from Dublin (DUB); highest: $1356 from Sydney (SYD); 14 nonstop. Cheapest-fare airlines (routes): Ryanair (7), easyJet (4), Etihad (4), Frontier (4), Air Canada (3) and WestJet (3), plus 19 more.
That depends on your passport and trip, so check the official source for United Kingdom: GOV.UK: check if you need a UK visa. Connecting elsewhere? Check that country's transit rules too.
Travelpayouts fares (cheapest per route, observed April 25, 2026); OurAirports coordinates and elevations; IANA zones America/Los_Angeles, Europe/London; flight time is our estimate.