Cheapest one-way flights from San Francisco to London in March from $269

AirHint found the following cheapest one-way flights from San Francisco (SFO) to London (LHR) in March 2026 (see full year).

One-Way flights

19 Mar WestJet
17 Mar Frontier Airlines
17 Mar British Airways direct
21 Mar Scandinavian Airlines
13 Mar Scandinavian Airlines
20 Mar Scandinavian Airlines
07 Mar United
11 Mar Iberia direct
18 Mar United direct
13 Mar British Airways direct

Also check the deals for return flights from San Francisco to London in March.

Powered by

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

Book a cheap hotel in London

Cheap car rent in London

Feel free to contact us with any feedback or request another flight research.