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

Return flights

07 Apr - 27 Apr	China Southern
08 Apr - 27 Apr	China Southern
02 Apr - 13 Apr	Air India
17 Apr - 25 Apr	Air India
03 Apr - 10 Apr	Air India
10 Apr - 24 Apr	Air India
02 Apr - 11 Apr	Air India
13 Apr - 20 Apr	Air India
07 Apr - 14 Apr	Air India
14 Apr - 21 Apr	Air India
14 Apr - 19 May	Air India
21 Apr - 05 May	Air India
22 Apr - 06 May	Air India
28 Apr - 19 May	Air India
29 Apr - 20 May	Air India
21 Apr - 03 May	Air India
22 Apr - 20 May	Air India
24 Apr - 01 May	Air India

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.

Book a cheap hotel in Bangkok

Cheap car rent in Bangkok

Cheapest return flights from San Francisco to Bangkok in April from $466

Return flights