Cheapest return flights from San Francisco to Bangkok in April from $650

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

Return flights

09 Apr - 20 Apr Asiana Airlines
16 Apr - 23 Apr Asiana Airlines
16 Apr - 24 Apr Asiana Airlines
09 Apr - 23 Apr Asiana Airlines
14 Apr - 19 May Asiana Airlines
13 Apr - 26 Apr Asiana Airlines
08 Apr - 19 Apr Korean Air
15 Apr - 15 May Asiana Airlines
01 Apr - 17 Apr Korean Air
10 Apr - 19 Apr Korean Air
09 Apr - 17 Apr Korean Air
10 Apr - 21 Apr Korean Air
25 Apr - 02 May Asiana Airlines

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

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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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