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

Return flights

08 Apr - 23 Apr	Philippine Airlines
09 Apr - 16 Apr	Philippine Airlines
06 Apr - 12 May	Philippine Airlines
01 Apr - 15 Apr	Philippine Airlines
14 Apr - 21 Apr	Philippine Airlines
18 Apr - 25 Apr	Philippine Airlines
05 Apr - 13 Apr	United
04 Apr - 11 Apr	United

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

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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Cheapest return flights from San Francisco to Bangkok in April from 637€

Return flights