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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 July , August 2026

30 Jul - 24 Aug $ 2,550.00
STL
St Louis
Alaska Airlines
2 STOPS
ULN
Ulaanbaatar
ULN
Ulaanbaatar
Alaska Airlines
2 STOPS
STL
St Louis
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27 Jul - 21 Aug $ 2,563.00
STL
St Louis
Korean Air
2 STOPS
ULN
Ulaanbaatar
ULN
Ulaanbaatar
Korean Air
2 STOPS
STL
St Louis
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28 Jul - 20 Aug $ 2,564.00
STL
St Louis
Korean Air
2 STOPS
ULN
Ulaanbaatar
ULN
Ulaanbaatar
Korean Air
2 STOPS
STL
St Louis
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Last minute flights from St Louis to Ulaanbaatar

28 Jul - 31 Jul $ 2,856.00
STL
St Louis
Korean Air
3 STOPS
ULN
Ulaanbaatar
ULN
Ulaanbaatar
Korean Air
2 STOPS
STL
St Louis
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28 Jul - 31 Jul $ 2,888.00
STL
St Louis
Korean Air
3 STOPS
ULN
Ulaanbaatar
ULN
Ulaanbaatar
Korean Air
2 STOPS
STL
St Louis
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28 Jul - 31 Jul $ 2,924.00
STL
St Louis
Korean Air
3 STOPS
ULN
Ulaanbaatar
ULN
Ulaanbaatar
Korean Air
2 STOPS
STL
St Louis
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One-way flights to Ulaanbaatar from St Louis

5:37 PM - 8:20 PM
Asiana Airlines
3 Stops
40h 28m
STL - ULN
$ 981
Kiwi
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9:08 AM - 7:05 AM
MIAT Mongolian Airlines
3 Stops
35h 27m
STL - ULN
$ 984
Kiwi
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8:55 AM - 1:50 AM
MIAT Mongolian Airlines
2 Stops
30h 35m
STL - ULN
$ 1,092
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.