Cheapest one-way flights from San Diego to London in December from 243€

AirHint found the following cheapest one-way flights from San Diego (SAN) to London (LHR) in December 2025 (see full year).

One-Way flights

03 Dec WestJet
09 Dec Frontier Airlines
08 Dec Frontier Airlines
30 Dec Lufthansa
04 Dec Frontier Airlines
01 Dec Air Canada
07 Dec Frontier Airlines
29 Dec Lufthansa
02 Dec Frontier Airlines
12 Dec Air Canada

Also check the deals for return flights from San Diego to London in December.

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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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