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Cheap flights from St Louis (STL) to Hanoi (HAN)

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0 Children (2~11)
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How to find the cheapest flight from St Louis (STL) to Hanoi (HAN)

How to find the cheapest flight from St Louis (STL) to Hanoi (HAN)
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How to find the cheapest flight from St Louis (STL) to Hanoi (HAN)
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How to find the cheapest flight from St Louis (STL) to Hanoi (HAN)
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Cheap flights from St Louis to Hanoi in May , June 2026

25 May - 18 Jun $ 1,718.00
STL
St Louis
Alaska Airlines
3 STOPS
HAN
Hanoi
HAN
Hanoi
Alaska Airlines
2 STOPS
STL
St Louis
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24 May - 02 Jun $ 1,994.00
STL
St Louis
Cathay Pacific
2 STOPS
HAN
Hanoi
HAN
Hanoi
Cathay Pacific
2 STOPS
STL
St Louis
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25 May - 06 Jun $ 3,294.00
STL
St Louis
Korean Air
2 STOPS
HAN
Hanoi
HAN
Hanoi
Korean Air
2 STOPS
STL
St Louis
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Last minute flights from St Louis to Hanoi

25 May - 01 Jun $ 1,719.00
STL
St Louis
Alaska Airlines
3 STOPS
HAN
Hanoi
HAN
Hanoi
Alaska Airlines
2 STOPS
STL
St Louis
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24 May - 01 Jun $ 2,582.00
STL
St Louis
Korean Air
2 STOPS
HAN
Hanoi
HAN
Hanoi
Korean Air
2 STOPS
STL
St Louis
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25 May - 01 Jun $ 3,295.00
STL
St Louis
Korean Air
2 STOPS
HAN
Hanoi
HAN
Hanoi
Korean Air
2 STOPS
STL
St Louis
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One-way flights to Hanoi from St Louis

5:33 PM - 1:10 PM
Xiamen Airlines
3 Stops
33h 7m
STL - HAN
$ 828
Kiwi
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7:06 PM - 6:30 PM
United Airlines
2 Stops
39h 29m
STL - HAN
$ 877
Kiwi
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8:53 AM - 6:55 PM
Korean Air
2 Stops
24h 42m
STL - HAN
$ 1,981
Kiwi
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How to find the cheapest flight from St Louis (STL) to Hanoi (HAN)

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