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Cheap flights from St Louis (STL) to Chiang Mai (CNX)

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0 Children (2~11)
0 Infants (0~2)
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How to find the cheapest flight from St Louis (STL) to Chiang Mai (CNX)

How to find the cheapest flight from St Louis (STL) to Chiang Mai (CNX)
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How to find the cheapest flight from St Louis (STL) to Chiang Mai (CNX)
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How to find the cheapest flight from St Louis (STL) to Chiang Mai (CNX)
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Cheap flights from St Louis to Chiang Mai in December 2025 , January 2026

30 Dec - 22 Jan $ 1,517.00
STL
St Louis
Frontier Airlines
3 STOPS
CNX
Chiang Mai
CNX
Chiang Mai
Frontier Airlines
3 STOPS
STL
St Louis
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25 Dec - 09 Jan $ 2,816.00
STL
St Louis
Alaska Airlines
2 STOPS
CNX
Chiang Mai
CNX
Chiang Mai
Alaska Airlines
2 STOPS
STL
St Louis
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22 Dec - 02 Jan $ 6,023.00
STL
St Louis
Korean Air
2 STOPS
CNX
Chiang Mai
CNX
Chiang Mai
Korean Air
2 STOPS
STL
St Louis
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Last minute flights from St Louis to Chiang Mai

25 Dec - 01 Jan $ 2,314.00
STL
St Louis
Frontier Airlines
3 STOPS
CNX
Chiang Mai
CNX
Chiang Mai
Frontier Airlines
3 STOPS
STL
St Louis
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25 Dec - 31 Dec $ 2,357.00
STL
St Louis
Korean Air
3 STOPS
CNX
Chiang Mai
CNX
Chiang Mai
Korean Air
3 STOPS
STL
St Louis
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25 Dec - 01 Jan $ 2,422.00
STL
St Louis
Frontier Airlines
2 STOPS
CNX
Chiang Mai
CNX
Chiang Mai
Frontier Airlines
3 STOPS
STL
St Louis
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One-way flights to Chiang Mai from St Louis

10:48 AM - 7:20 AM
EVA Air
3 Stops
34h 47m
STL - CNX
$ 818
Kiwi
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5:26 PM - 2:05 PM
Starlux Airlines
2 Stops
34h 34m
STL - CNX
$ 1,074
Kiwi
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5:26 PM - 7:20 AM
China Airlines
2 Stops
27h 59m
STL - CNX
$ 1,980
Kiwi
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How to find the cheapest flight from St Louis (STL) to Chiang Mai (CNX)

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