Earn point on your loyalty program!arrow arc left

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

Know your dates, get live prices in seconds
airplane logo

pin logo

calendar
Departure
calendar backward
Return
airplane logo
1 Adults (11+)
0 Children (2~11)
0 Infants (0~2)
Save up to 31%
Book Flight + Hotel at the same time

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)
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.
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.

Cheap flights from St Louis to Hanoi in December 2025 , January 2026

30 Dec - 30 Jan $ 1,315.00
STL
St Louis
Frontier Airlines
2 STOPS
HAN
Hanoi
HAN
Hanoi
Frontier Airlines
3 STOPS
STL
St Louis
Pick dates
15 Dec - 02 Jan $ 3,551.00
STL
St Louis
Qatar Airways
2 STOPS
HAN
Hanoi
HAN
Hanoi
Qatar Airways
2 STOPS
STL
St Louis
Pick dates
22 Dec - 02 Jan $ 6,565.00
STL
St Louis
Alaska Airlines
2 STOPS
HAN
Hanoi
HAN
Hanoi
Alaska Airlines
2 STOPS
STL
St Louis
Pick dates

Last minute flights from St Louis to Hanoi

26 Dec - 01 Jan $ 1,862.00
STL
St Louis
Frontier Airlines
3 STOPS
HAN
Hanoi
HAN
Hanoi
Frontier Airlines
3 STOPS
STL
St Louis
Pick dates
15 Dec - 01 Jan $ 4,022.00
STL
St Louis
Qatar Airways
2 STOPS
HAN
Hanoi
HAN
Hanoi
Qatar Airways
2 STOPS
STL
St Louis
Pick dates
22 Dec - 31 Dec $ 6,211.00
STL
St Louis
Alaska Airlines
2 STOPS
HAN
Hanoi
HAN
Hanoi
Alaska Airlines
2 STOPS
STL
St Louis
Pick dates

One-way flights to Hanoi from St Louis

6:05 AM - 9:20 PM
Jeju Air
2 Stops
29h 35m
STL - HAN
$ 835
Kiwi
Pick dates
5:30 PM - 9:15 AM
EVA Air
2 Stops
29h 5m
STL - HAN
$ 1,264
Kiwi
Pick dates
5:27 PM - 6:20 PM
Turkish Airlines
2 Stops
24h 53m
STL - HAN
$ 2,035
Kiwi
Pick dates

How to find the cheapest flight from St Louis (STL) to Hanoi (HAN)

Related info for your journey
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.
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.