When did momondo last update prices for flights from Lambert-St Louis Airport to Hanoi Noibai Airport?

Prices for flights from Lambert-St Louis Airport to Hanoi Noibai Airport refresh daily.

How old do you have to be to fly from Lambert-St Louis Airport to Hanoi Noibai Airport?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Lambert-St Louis Airport to Hanoi Noibai Airport.

What documentation or ID do you need to fly to Hanoi Noibai Airport?

The necessary travel and health documents for your Hanoi Noibai Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$820 Cheap Flights from St. Louis to Hanoi in 2026

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Find the cheapest flights from St. Louis to Hanoi

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

8:15 pm - 11:05 pm

STL

HAN

37h 50m

2 stops

12:25 am - 5:53 pm

HAN

STL

30h 28m

2 stops

$1,415United Airlines

Sun, Nov 1 - Wed, Nov 4

9:23 am - 10:15 pm

STL

HAN

24h 52m

2 stops

11:35 pm - 7:25 pm

HAN

STL

31h 50m

2 stops

$1,449United Airlines

Tue, Oct 20 - Fri, Oct 23

9:47 am - 1:55 pm

STL

HAN

40h 08m

2 stops

7:30 pm - 11:25 pm

HAN

STL

39h 55m

2 stops

$1,571Qatar Airways

Tue, Oct 20 - Fri, Oct 23

6:00 am - 10:15 pm

STL

HAN

28h 15m

2 stops

11:35 pm - 11:35 pm

HAN

STL

36h 00m

2 stops

$1,764United Airlines

Thu, Jun 11 - Wed, Jun 17

6:00 am - 10:15 pm

STL

HAN

28h 15m

2 stops

11:35 pm - 6:13 pm

HAN

STL

30h 38m

2 stops

$1,804United Airlines

Thu, Jun 11 - Thu, Jun 18

6:00 am - 10:15 pm

STL

HAN

28h 15m

2 stops

11:35 pm - 11:35 pm

HAN

STL

36h 00m

2 stops

$1,844United Airlines

Sat, Jun 13 - Sat, Jun 20

6:00 am - 10:15 pm

STL

HAN

28h 15m

2 stops

11:35 pm - 11:35 pm

HAN

STL

36h 00m

2 stops

$1,896ANA

Sat, Jun 13 - Sat, Jun 20

8:39 am - 6:40 am

STL

HAN

34h 01m

2 stops

8:40 pm - 12:16 am

HAN

STL

39h 36m

2 stops

$1,941Multiple Airlines

Mon, Jun 15 - Sat, Jul 4

7:41 pm - 4:50 pm

STL

HAN

33h 09m

2 stops

7:30 pm - 11:59 pm

HAN

STL

40h 29m

2 stops

$2,017Multiple Airlines

Sat, May 30 - Sun, Aug 2

1:05 pm - 9:50 am

STL

HAN

32h 45m

3 stops

6:00 pm - 2:02 pm

HAN

STL

32h 02m

3 stops

$2,335Multiple Airlines

Sat, May 30 - Sun, Aug 2

ANA flights from St. Louis to Hanoi

Our best ANA deals on St. Louis to Hanoi flight tickets

ANA

Jun 13

STL6:00 amLambert-St Louis

28h 15m

2 stops

HAN10:15 pmHanoi Noibai

Jun 20

HAN11:35 pmHanoi Noibai

36h 00m

2 stops

STL11:35 pmLambert-St Louis

$1,896

ANA

Jul 15

STL8:00 amLambert-St Louis

26h 15m

2 stops

HAN10:15 pmHanoi Noibai

Jul 31

HAN11:35 pmHanoi Noibai

30h 38m

2 stops

STL6:13 pmLambert-St Louis

$15,779

United Airlines flights from St. Louis to Hanoi

Our best United Airlines deals on St. Louis to Hanoi flight tickets

United Airlines

Nov 1

STL8:15 pmLambert-St Louis

37h 50m

2 stops

HAN11:05 pmHanoi Noibai

Nov 4

HAN12:25 amHanoi Noibai

30h 28m

2 stops

STL5:53 pmLambert-St Louis

$1,415

United Airlines

Oct 20

STL9:23 amLambert-St Louis

24h 52m

2 stops

HAN10:15 pmHanoi Noibai

Oct 23

HAN11:35 pmHanoi Noibai

31h 50m

2 stops

STL7:25 pmLambert-St Louis

$1,449

United Airlines

Jun 11

STL6:00 amLambert-St Louis

28h 15m

2 stops

HAN10:15 pmHanoi Noibai

Jun 17

HAN11:35 pmHanoi Noibai

36h 00m

2 stops

STL11:35 pmLambert-St Louis

$1,764

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

St. LouisHanoi

STL - HAN

STLHAN

Lambert-St Louis

Sun 11/1

8:15 pm-11:05 pm

2 stops37h 50m

Hanoi Noibai

Wed 11/4

12:25 am-5:53 pm

2 stops30h 28m

$1,415

Quickest round-trip

St. LouisHanoi

STL - HAN

STLHAN

Lambert-St Louis

Tue 10/20

9:23 am-10:15 pm

2 stops24h 52m

Hanoi Noibai

Fri 10/23

11:35 pm-7:25 pm

2 stops31h 50m

$1,449

St. LouisHanoi

STL - HAN

STLHAN

Lambert-St Louis

Tue 10/20

9:47 am-1:55 pm

2 stops40h 08m

Hanoi Noibai

Fri 10/23

7:30 pm-11:25 pm

2 stops39h 55m

$1,571

St. LouisHanoi

STL - HAN

STLHAN

Lambert-St Louis

Thu 6/11

6:00 am-10:15 pm

2 stops28h 15m

Hanoi Noibai

Wed 6/17

11:35 pm-11:35 pm

2 stops36h 00m

$1,764

St. LouisHanoi

STL - HAN

STLHAN

Lambert-St Louis

Thu 6/11

6:00 am-10:15 pm

2 stops28h 15m

Hanoi Noibai

Thu 6/18

11:35 pm-6:13 pm

2 stops30h 38m

$1,804

St. LouisHanoi

STL - HAN

STLHAN

Lambert-St Louis

Sat 6/13

6:00 am-10:15 pm

2 stops28h 15m

Hanoi Noibai

Sat 6/20

11:35 pm-11:35 pm

2 stops36h 00m

$1,844

St. LouisHanoi

STL - HAN

STLHAN

Lambert-St Louis

Sat 6/13

6:00 am-10:15 pm

2 stops28h 15m

Hanoi Noibai

Sat 6/20

11:35 pm-11:35 pm

2 stops36h 00m

$1,896

St. LouisHanoi

STL - HAN

STLHAN

Lambert-St Louis

Mon 6/15

8:39 am-6:40 am

2 stops34h 01m

Hanoi Noibai

Sat 7/4

8:40 pm-12:16 am

2 stops39h 36m

$1,941

St. LouisHanoi

STL - HAN

STLHAN

Lambert-St Louis

Sat 5/30

7:41 pm-4:50 pm

2 stops33h 09m

Hanoi Noibai

Sun 8/2

7:30 pm-11:59 pm

2 stops40h 29m

$2,017

St. LouisHanoi

STL - HAN

STLHAN

Lambert-St Louis

Sat 5/30

1:05 pm-9:50 am

3 stops32h 45m

Hanoi Noibai

Sun 8/2

6:00 pm-2:02 pm

3 stops32h 02m

$2,335

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from St. Louis to Hanoi

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest airline that flies from Lambert-St Louis to Hanoi Noibai?

ANA is the most popular carrier operating from Lambert-St Louis to Hanoi Noibai

When to book flights from St. Louis to Hanoi

Are you open to changing your travel dates? Check out the ideal times to fly from St. Louis to Hanoi according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap St. Louis to Hanoi (STL to HAN) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from St. Louis to Hanoi

Fastest flight time	27h 15m
Direct flights	None

The fastest flight from St. Louis to Hanoi takes 27h 15m

There are no direct flights from St. Louis to Hanoi. There are no popular flight routes from St. Louis to Hanoi.

Search flight deals

Frequently asked questions about flying from St. Louis to Hanoi

How far is Lambert-St Louis to Hanoi Noibai by plane?
There are 8181.5 mi between Lambert-St Louis and Hanoi Noibai. By plane, this route typically takes 27h 15m.
When did momondo last update prices for flights from Lambert-St Louis Airport to Hanoi Noibai Airport?
Prices for flights from Lambert-St Louis Airport to Hanoi Noibai Airport refresh daily.
How old do you have to be to fly from Lambert-St Louis Airport to Hanoi Noibai Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Lambert-St Louis Airport to Hanoi Noibai Airport.
What documentation or ID do you need to fly to Hanoi Noibai Airport?
The necessary travel and health documents for your Hanoi Noibai Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Why use momondo?

Why should I use momondo to find a flight deal from St. Louis to Hanoi?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from St. Louis to Hanoi. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from St. Louis to Hanoi with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Hanoi from St. Louis with this policy.

How can momondo help me find flights from St. Louis to Hanoi?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from St. Louis to Hanoi.

I’m not ready to book a flight from St. Louis to Hanoi right now. Can momondo alert me if prices change?

Yes. momondo can track prices for St. Louis to Hanoi flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.