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 October , November 2026

29 Oct - 09 Nov $ 1,236.00
STL
St Louis
Alaska Airlines
2 STOPS
HAN
Hanoi
HAN
Hanoi
Alaska Airlines
2 STOPS
STL
St Louis
Pick dates
26 Oct - 19 Nov $ 1,338.00
STL
St Louis
Alaska Airlines
2 STOPS
HAN
Hanoi
HAN
Hanoi
Alaska Airlines
2 STOPS
STL
St Louis
Pick dates
24 Oct - 06 Nov $ 3,809.00
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 Oct - 31 Oct $ 1,360.00
STL
St Louis
Cathay Pacific
2 STOPS
HAN
Hanoi
HAN
Hanoi
Cathay Pacific
2 STOPS
STL
St Louis
Pick dates
26 Oct - 31 Oct $ 1,374.00
STL
St Louis
Cathay Pacific
2 STOPS
HAN
Hanoi
HAN
Hanoi
Cathay Pacific
2 STOPS
STL
St Louis
Pick dates
24 Oct - 31 Oct $ 3,915.00
STL
St Louis
Cathay Pacific
2 STOPS
HAN
Hanoi
HAN
Hanoi
Cathay Pacific
2 STOPS
STL
St Louis
Pick dates

One-way flights to Hanoi from St Louis

6:04 AM - 8:50 AM
Cathay Pacific
2 Stops
40h 1m
STL - HAN
$ 582
Kiwi
Pick dates
7:30 AM - 6:40 PM
All Nippon Airways
2 Stops
27h 35m
STL - HAN
$ 647
Kiwi
Pick dates
8:30 AM - 6:40 PM
All Nippon Airways
2 Stops
26h 35m
STL - HAN
$ 657
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.