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

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0 Children (2~11)
0 Infants (0~2)
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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 September , October 2026

27 Sep - 13 Oct $ 1,325.00
CHI
Chicago
MIAT Mongolian Airlines
1 STOPS
ULN
Ulaanbaatar
ULN
Ulaanbaatar
MIAT Mongolian Airlines
1 STOPS
CHI
Chicago
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28 Sep - 22 Oct $ 1,355.00
CHI
Chicago
Alaska Airlines
1 STOPS
ULN
Ulaanbaatar
ULN
Ulaanbaatar
Alaska Airlines
2 STOPS
CHI
Chicago
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28 Sep - 07 Oct $ 2,373.00
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

28 Sep - 01 Oct $ 1,634.00
CHI
Chicago
EVA Air
2 STOPS
ULN
Ulaanbaatar
ULN
Ulaanbaatar
EVA Air
2 STOPS
CHI
Chicago
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28 Sep - 30 Sep $ 1,733.00
CHI
Chicago
United Airlines
1 STOPS
ULN
Ulaanbaatar
ULN
Ulaanbaatar
United Airlines
2 STOPS
CHI
Chicago
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28 Sep - 30 Sep $ 2,863.00
CHI
Chicago
Korean Air
1 STOPS
ULN
Ulaanbaatar
ULN
Ulaanbaatar
Korean Air
2 STOPS
CHI
Chicago
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One-way flights to Ulaanbaatar from Chicago

12:10 PM - 8:35 AM
Korean Air
1 Stops
34h
CHI - ULN
$ 656
Kiwi
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4:15 PM - 12:05 PM
MIAT Mongolian Airlines
1 Stops
35h 30m
CHI - ULN
$ 717
Kiwi
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11:25 AM - 6:30 PM
Turkish Airlines
1 Stops
30h 55m
CHI - ULN
$ 753
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.