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

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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 November , December 2025

27 Nov - 14 Dec $ 1,029.00
CHI
Chicago
Spirit Airlines
2 STOPS
ULN
Ulaanbaatar
ULN
Ulaanbaatar
Spirit Airlines
2 STOPS
CHI
Chicago
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26 Nov - 08 Dec $ 1,319.00
CHI
Chicago
Hawaiian Airlines
2 STOPS
ULN
Ulaanbaatar
ULN
Ulaanbaatar
Hawaiian Airlines
2 STOPS
CHI
Chicago
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29 Nov - 04 Dec $ 2,516.00
CHI
Chicago
Turkish Airlines
1 STOPS
ULN
Ulaanbaatar
ULN
Ulaanbaatar
Turkish Airlines
1 STOPS
CHI
Chicago
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Last minute flights from Chicago to Ulaanbaatar

27 Nov - 01 Dec $ 1,498.00
CHI
Chicago
Frontier Airlines
2 STOPS
ULN
Ulaanbaatar
ULN
Ulaanbaatar
Frontier Airlines
3 STOPS
CHI
Chicago
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22 Nov - 01 Dec $ 2,241.00
CHI
Chicago
Hawaiian Airlines
2 STOPS
ULN
Ulaanbaatar
ULN
Ulaanbaatar
Hawaiian Airlines
2 STOPS
CHI
Chicago
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22 Nov - 30 Nov $ 6,771.00
CHI
Chicago
United Airlines
1 STOPS
ULN
Ulaanbaatar
ULN
Ulaanbaatar
United Airlines
1 STOPS
CHI
Chicago
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One-way flights to Ulaanbaatar from Chicago

8:10 AM - 8:45 PM
Asiana Airlines
2 Stops
49h 20m
CHI - ULN
$ 481
Kiwi
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6:06 PM - 8:45 PM
Asiana Airlines
2 Stops
39h 24m
CHI - ULN
$ 584
Kiwi
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6:00 AM - 11:55 PM
MIAT Mongolian Airlines
2 Stops
30h 40m
CHI - ULN
$ 685
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.