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Cheap flights from Chicago (CHI) to Ulaanbaatar (ULN)

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0 Children (2~11)
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How to find the cheapest flight from Chicago (CHI) to Ulaanbaatar (ULN)

How to find the cheapest flight from Chicago (CHI) to Ulaanbaatar (ULN)
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How to find the cheapest flight from Chicago (CHI) to Ulaanbaatar (ULN)
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How to find the cheapest flight from Chicago (CHI) to Ulaanbaatar (ULN)
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Cheap flights from Chicago to Ulaanbaatar in October , November 2026

25 Oct - 10 Nov $ 1,147.00
CHI
Chicago
Turkish Airlines
1 STOPS
ULN
Ulaanbaatar
ULN
Ulaanbaatar
Turkish Airlines
1 STOPS
CHI
Chicago
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18 Oct - 15 Nov $ 1,385.00
CHI
Chicago
Turkish Airlines
1 STOPS
ULN
Ulaanbaatar
ULN
Ulaanbaatar
Turkish Airlines
1 STOPS
CHI
Chicago
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27 Oct - 09 Nov $ 2,080.00
CHI
Chicago
All Nippon Airways
1 STOPS
ULN
Ulaanbaatar
ULN
Ulaanbaatar
All Nippon Airways
1 STOPS
CHI
Chicago
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Last minute flights from Chicago to Ulaanbaatar

27 Oct - 31 Oct $ 1,737.00
CHI
Chicago
Alaska Airlines
1 STOPS
ULN
Ulaanbaatar
ULN
Ulaanbaatar
Alaska Airlines
2 STOPS
CHI
Chicago
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25 Oct - 31 Oct $ 1,869.00
CHI
Chicago
Turkish Airlines
1 STOPS
ULN
Ulaanbaatar
ULN
Ulaanbaatar
Turkish Airlines
1 STOPS
CHI
Chicago
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27 Oct - 31 Oct $ 7,901.00
CHI
Chicago
All Nippon Airways
1 STOPS
ULN
Ulaanbaatar
ULN
Ulaanbaatar
All Nippon Airways
1 STOPS
CHI
Chicago
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One-way flights to Ulaanbaatar from Chicago

12:10 PM - 7:45 AM
Korean Air
1 Stops
33h 15m
CHI - ULN
$ 698
Kiwi
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9:15 PM - 6:15 PM
Turkish Airlines
1 Stops
21h 10m
CHI - ULN
$ 713
Kiwi
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9:15 PM - 6:15 PM
Turkish Airlines
1 Stops
21h 10m
CHI - ULN
$ 714
Kiwi
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How to find the cheapest flight from Chicago (CHI) to Ulaanbaatar (ULN)

Related info for your journey
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How to find the cheapest flight from Chicago (CHI) to Ulaanbaatar (ULN)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.
How to find the cheapest flight from Chicago (CHI) to Ulaanbaatar (ULN)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.