San Diego International (SAN) to Heathrow (LHR).
| Departure | Return | Price |
|---|---|---|
| 08/05/2026 | 08/12/2026 | $1001 |
| 08/05/2026 | 08/13/2026 | $1001 |
| 08/05/2026 | 08/14/2026 | $1022 |
| 08/05/2026 | 08/11/2026 | $1040 |
| 08/04/2026 | 08/12/2026 | $1131 |
| 08/03/2026 | 08/12/2026 | $1136 |
| 08/04/2026 | 08/13/2026 | $1154 |
| 06/11/2026 | 06/16/2026 | $1201 |
| 08/02/2026 | 08/11/2026 | $1204 |
| 08/03/2026 | 08/11/2026 | $1204 |
Based on current fares, August is the cheapest month to fly from San Diego to London, with average fares around $1155 round trip (as low as $1001).
See the full month-by-month and day-of-week price analysis
Best Time to Fly SAN → LHRDeparture date prices (economy, round trip). Green = cheap, red = expensive.
The cheapest month to fly from San Diego to London is August, with average round-trip fares around $1155. Fares in August start as low as $1001. The most expensive month is June, averaging $1368.
A nonstop flight from San Diego to London takes approximately 10h 30m.
The cheapest flight from San Diego to London currently starts at $1001 round trip in economy class.
The average round-trip flight price from San Diego to London is $1358 in economy class.
The distance is 5407 miles (8700 km). with a nonstop flight time of about 10h 30m. The lowest fare currently available is $1001 departing in August. The average round-trip fare is $1358.
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