Cheapest return ORD–BKK flights, May

AirHint found the following cheapest return flights from Chicago (ORD) to Bangkok (BKK) in May 2026 (see full year).

Return flights

11 May - 16 May Cathay Pacific
13 May - 20 May Cathay Pacific
11 May - 24 May Cathay Pacific
17 May - 24 May Finnair
24 May - 05 Jun Finnair
25 May - 01 Jun Finnair
14 May - 24 May Finnair
28 May - 21 Jun Finnair
18 May - 25 May IndiGo
29 May - 20 Jun Finnair
13 May - 30 May Etihad Airways
29 May - 06 Jun Frontier Airlines
17 May - 31 May Qatar Airways
28 May - 02 Jun Cathay Pacific
22 May - 06 Jun Finnair
27 May - 30 May IndiGo
20 May - 17 Jun IndiGo
09 May - 18 May Air Canada

Also check the deals for one-way flights from Chicago to Bangkok in May.

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