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Cheap flights from St Louis (STL) to Ulaanbaatar (ULN)

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1 Adults (11+)
0 Children (2~11)
0 Infants (0~2)
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How to find the cheapest flight from St Louis (STL) to Ulaanbaatar (ULN)

How to find the cheapest flight from St Louis (STL) to Ulaanbaatar (ULN)
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How to find the cheapest flight from St Louis (STL) to Ulaanbaatar (ULN)
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How to find the cheapest flight from St Louis (STL) to Ulaanbaatar (ULN)
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Cheap flights from St Louis to Ulaanbaatar in March , April 2026

19 Mar - 08 Apr $ 1,553.00
STL
St Louis
Hawaiian Airlines
2 STOPS
ULN
Ulaanbaatar
ULN
Ulaanbaatar
Hawaiian Airlines
3 STOPS
STL
St Louis
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19 Mar - 01 Apr $ 1,563.00
STL
St Louis
Hawaiian Airlines
2 STOPS
ULN
Ulaanbaatar
ULN
Ulaanbaatar
Hawaiian Airlines
3 STOPS
STL
St Louis
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19 Mar - 21 Apr $ 1,659.00
STL
St Louis
Hawaiian Airlines
2 STOPS
ULN
Ulaanbaatar
ULN
Ulaanbaatar
Hawaiian Airlines
2 STOPS
STL
St Louis
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Last minute flights from St Louis to Ulaanbaatar

19 Mar - 01 Apr $ 1,519.00
STL
St Louis
Hawaiian Airlines
2 STOPS
ULN
Ulaanbaatar
ULN
Ulaanbaatar
Hawaiian Airlines
3 STOPS
STL
St Louis
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19 Mar - 01 Apr $ 1,528.00
STL
St Louis
Hawaiian Airlines
2 STOPS
ULN
Ulaanbaatar
ULN
Ulaanbaatar
Hawaiian Airlines
3 STOPS
STL
St Louis
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18 Mar - 01 Apr $ 1,572.00
STL
St Louis
Hawaiian Airlines
2 STOPS
ULN
Ulaanbaatar
ULN
Ulaanbaatar
Hawaiian Airlines
3 STOPS
STL
St Louis
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One-way flights to Ulaanbaatar from St Louis

7:00 AM - 7:45 AM
Korean Air
2 Stops
38h 25m
STL - ULN
$ 735
Kiwi
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7:00 AM - 11:55 PM
MIAT Mongolian Airlines
2 Stops
30h 40m
STL - ULN
$ 745
Kiwi
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6:29 AM - 12:05 AM
MIAT Mongolian Airlines
3 Stops
31h 16m
STL - ULN
$ 804
Kiwi
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How to find the cheapest flight from St Louis (STL) to Ulaanbaatar (ULN)

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