Cheapest one-way flights from San Jose to London in September from $299

AirHint found the following cheapest one-way flights from San Jose (SJC) to London (LGW) in September 2025 (see full year).

One-Way flights

28 Sep Frontier Airlines
27 Sep Alaska Airlines
21 Sep Frontier Airlines
17 Sep Spirit Airlines
24 Sep Icelandair
20 Sep Icelandair
25 Sep Icelandair
26 Sep Icelandair
15 Sep Icelandair
16 Sep Icelandair

Also check the deals for return flights from San Jose to London in September.

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.

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