Cheapest return flights from Chicago to Singapore in December from 916€

AirHint found the following cheapest return flights from Chicago (ORD) to Singapore (SIN) in December 2025 (see full year).

Return flights

08 Dec - 20 Dec Air India
06 Dec - 13 Dec IndiGo
01 Dec - 05 Dec Delta
24 Dec - 27 Dec United
24 Dec - 28 Dec United
23 Dec - 28 Dec United
11 Dec - 31 Dec United
18 Dec - 25 Jan Alaska Airlines
17 Dec - 09 Jan Frontier Airlines
11 Dec - 30 Dec Air Canada
20 Dec - 27 Dec Air Serbia
25 Dec - 03 Jan Hawaiian Airlines
11 Dec - 01 Jan Delta
20 Dec - 10 Jan IndiGo

Also check the deals for one-way flights from Chicago to Singapore in December.

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