AirHint found the following cheapest return flights from Chicago (ORD) to Singapore (SIN) in May 2026 (see full year).
Return flights
| 07 May - 23 May | Etihad Airways | ||
| 07 May - 22 May | Cathay Pacific | ||
| 14 May - 30 May | Air Canada |
Also check the deals for one-way flights from Chicago to Singapore in May.
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