AirHint found the following cheapest return flights from Sacramento (SMF) to London (LHR) in May 2026 (see full year).
Return flights
| 13 May - 29 May | Air Canada | ||
| 04 May - 22 May | United | ||
| 05 May - 22 May | KLM | ||
| 08 May - 16 May | Delta | ||
| 18 May - 15 Jun | Delta | ||
| 16 May - 24 May | Lufthansa | ||
| 24 May - 31 May | Delta | ||
| 25 May - 15 Jun | Delta |
Also check the deals for one-way flights from Sacramento to London in May.
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