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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 July , August 2026

28 Jul - 28 Aug $ 1,420.00
STL
St Louis
Frontier Airlines
3 STOPS
CNX
Chiang Mai
CNX
Chiang Mai
Frontier Airlines
3 STOPS
STL
St Louis
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05 Jul - 05 Aug $ 2,504.00
STL
St Louis
Alaska Airlines
2 STOPS
CNX
Chiang Mai
CNX
Chiang Mai
Alaska Airlines
2 STOPS
STL
St Louis
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05 Jul - 05 Aug $ 3,617.00
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

18 Jul - 31 Jul $ 1,923.00
STL
St Louis
Alaska Airlines
3 STOPS
CNX
Chiang Mai
CNX
Chiang Mai
Alaska Airlines
3 STOPS
STL
St Louis
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28 Jul - 31 Jul $ 1,937.00
STL
St Louis
Alaska Airlines
3 STOPS
CNX
Chiang Mai
CNX
Chiang Mai
Alaska Airlines
3 STOPS
STL
St Louis
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28 Jul - 31 Jul $ 2,039.00
STL
St Louis
Alaska Airlines
2 STOPS
CNX
Chiang Mai
CNX
Chiang Mai
Alaska Airlines
3 STOPS
STL
St Louis
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One-way flights to Chiang Mai from St Louis

7:03 PM - 8:05 PM
China Eastern Airlines
3 Stops
40h 17m
STL - CNX
$ 688
Kiwi
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7:56 PM - 7:30 AM
China Airlines
2 Stops
26h 24m
STL - CNX
$ 952
Kiwi
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7:56 PM - 7:30 AM
China Airlines
2 Stops
26h 24m
STL - CNX
$ 1,527
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.