Cheapest return flights from Boston to Bangkok in April from $914

Best time to book flights for Boston (BOS) to Bangkok (BKK) flights at AirHint

AirHint found the following cheapest return flights from Boston (BOS) to Bangkok (BKK) in April 2025 (see full year).

Return flights

23 Apr - 13 May Korean Air
30 Apr - 25 May Qatar Airways
27 Apr - 18 May Qatar Airways
23 Apr - 04 May Qatar Airways
22 Apr - 04 May Qatar Airways
21 Apr - 04 May Qatar Airways
21 Apr - 09 May Qatar Airways
21 Apr - 07 May Cathay Pacific
22 Apr - 07 May Cathay Pacific
20 Apr - 08 May Qatar Airways
22 Apr - 30 Apr Cathay Pacific
23 Apr - 30 Apr Cathay Pacific
22 Apr - 29 Apr Cathay Pacific

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

Skyscanner

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