AirHint found the following cheapest one-way flights from Chicago (ORD) to Singapore (SIN) in March 2026 (see full year).
One-Way flights
| 02 Mar | Air India | ||
| 20 Mar | Air India | ||
| 27 Mar | Air India | ||
| 10 Mar | Frontier Airlines | ||
| 24 Mar | Korean Air | ||
| 15 Mar | Air India | ||
| 14 Mar | IndiGo | ||
| 30 Mar | United | ||
| 28 Mar | United |
Also check the deals for return flights from Chicago to Singapore in March.
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