Cheapest return flights from Chicago to Singapore in December from $911

Best time to book flights for Chicago (ORD) to Singapore (SIN) flights at AirHint

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

Return flights

01 Dec - 10 Dec Cathay Pacific
02 Dec - 01 Jan Cathay Pacific
01 Dec - 01 Jan Cathay Pacific
28 Dec - 17 Jan Air India
28 Dec - 06 Jan Korean Air
25 Dec - 08 Jan Alaska Airlines
12 Dec - 04 Jan Finnair

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

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 Singapore

Cheap car rent in Singapore