AirHint found the following cheapest return flights from Chicago (ORD) to Ulaanbaatar (UBN) in July 2026 (see full year).
Return flights
| 26 Jul - 16 Aug | Turkish Airlines | ||
| 09 Jul - 06 Aug | Frontier Airlines | ||
| 01 Jul - 16 Jul | MIAT Mongolian Airlines | ||
| 01 Jul - 31 Jul | Alaska Airlines | ||
| 06 Jul - 25 Jul | Delta |
Also check the deals for one-way flights from Chicago to Ulaanbaatar in July.
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