United Airlines is having a sale on flights to London, United Kingdom from San Francisco, Los Angeles and Denver. Depart between August 2019 to January 2020 with bags and meals included.
$407 Roundtrip San Francisco to London - Heathrow Flights
$427 Roundtrip Los Angeles to London - Heathrow Flights
$486 Roundtrip Denver 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.