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 February , March 2026

28 Feb - 13 Mar $ 1,081.00
STL
St Louis
Hawaiian Airlines
2 STOPS
HAN
Hanoi
HAN
Hanoi
Hawaiian Airlines
2 STOPS
STL
St Louis
Pick dates
05 Feb - 02 Mar $ 3,576.00
STL
St Louis
Alaska Airlines
2 STOPS
HAN
Hanoi
HAN
Hanoi
Alaska Airlines
2 STOPS
STL
St Louis
Pick dates
05 Feb - 02 Mar $ 6,536.00
STL
St Louis
Hawaiian Airlines
2 STOPS
HAN
Hanoi
HAN
Hanoi
Hawaiian Airlines
2 STOPS
STL
St Louis
Pick dates

Last minute flights from St Louis to Hanoi

18 Feb - 01 Mar $ 1,387.00
STL
St Louis
Hawaiian Airlines
2 STOPS
HAN
Hanoi
HAN
Hanoi
Hawaiian Airlines
3 STOPS
STL
St Louis
Pick dates
18 Feb - 01 Mar $ 1,417.00
STL
St Louis
Hawaiian Airlines
2 STOPS
HAN
Hanoi
HAN
Hanoi
Hawaiian Airlines
3 STOPS
STL
St Louis
Pick dates
18 Feb - 01 Mar $ 1,468.00
STL
St Louis
Hawaiian Airlines
2 STOPS
HAN
Hanoi
HAN
Hanoi
Hawaiian Airlines
3 STOPS
STL
St Louis
Pick dates

One-way flights to Hanoi from St Louis

8:17 AM - 6:20 PM
United Airlines
2 Stops
25h 48m
STL - HAN
$ 481
Kiwi
Pick dates
6:00 AM - 6:20 PM
United Airlines
2 Stops
28h 5m
STL - HAN
$ 1,271
Kiwi
Pick dates
3:11 PM - 11:00 AM
Vietnam Airlines
2 Stops
25h 9m
STL - HAN
$ 6,645
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.