Cheapest return flights from San Francisco to London in April from 526€

AirHint found the following cheapest return flights from San Francisco (SFO) to London (LHR) in April 2026 (see full year).

Return flights

13 Apr - 24 Apr Aer Lingus
12 Apr - 24 Apr Aer Lingus
14 Apr - 28 Apr Aer Lingus
25 Apr - 11 May Scandinavian Airlines
15 Apr - 26 Apr Aer Lingus
11 Apr - 24 Apr Aer Lingus
11 Apr - 23 Apr Aer Lingus
13 Apr - 24 Apr British Airways direct
12 Apr - 24 Apr British Airways direct
14 Apr - 28 Apr British Airways direct
03 Apr - 09 Apr United
25 Apr - 11 May British Airways direct

Also check the deals for one-way flights from San Francisco to London in April.

Skyscanner

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.