Cheapest return flights from Philadelphia to Bangkok in April from $698

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

Return flights

21 Apr - 12 May Korean Air
22 Apr - 13 May Korean Air
21 Apr - 05 May Korean Air
21 Apr - 06 May Korean Air
21 Apr - 08 May Korean Air
22 Apr - 05 May Korean Air
22 Apr - 06 May Korean Air
22 Apr - 08 May Korean Air
15 Apr - 29 Apr Qatar Airways
07 Apr - 14 Apr Korean Air
11 Apr - 17 Apr Korean Air
14 Apr - 28 Apr Korean Air
11 Apr - 21 Apr Korean Air
20 Apr - 28 Apr Qatar Airways
01 Apr - 15 Apr Delta
08 Apr - 25 Apr Qatar Airways
06 Apr - 13 Apr Korean Air
08 Apr - 15 Apr Korean Air

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

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