Fly to London, United Kingdom with these cheap flights from British Airways & American Airlines. Depart from Los Angeles, Seattle & San Francisco between January to March 2020.
$342 Roundtrip Los Angeles to London - Heathrow Flights
$372 Roundtrip San Francisco to London - Heathrow Flights
$403 Roundtrip Seattle to London - Heathrow Flights
Flights from Other Cities Your departure city wasn't included? Click to see the prices we have found from your city to London - Heathrow
London - Heathrow Hotels Get a great deal on a room in London - Heathrow
Can I use my own dates? Yes - just click the link closest to your preferred dates and then change the dates once the search has completed.
These prices won’t last long. Usually a few days but sometimes much shorter. If you click the sample dates and the prices have gone up it unfortunately means the sale has ended.