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.

$511 Cheap Flights from St. Louis to Hanoi in 2026

Find the cheapest flights from St. Louis to Hanoi

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

4:40 pm - 1:55 pm

STL

HAN

57h 15m

2 stops

7:30 pm - 11:59 pm

HAN

STL

40h 29m

2 stops

$1,078Multiple Airlines

Sun, Oct 11 - Thu, Oct 22

3:11 pm - 6:55 am

STL

HAN

50h 44m

2 stops

7:10 pm - 2:15 pm

HAN

STL

56h 05m

2 stops

$1,086Multiple Airlines

Mon, Nov 9 - Mon, Nov 16

7:29 am - 12:20 pm

STL

HAN

39h 51m

2 stops

7:10 pm - 2:15 pm

HAN

STL

56h 05m

2 stops

$1,111Multiple Airlines

Mon, Nov 9 - Mon, Nov 16

11:31 am - 6:55 am

STL

HAN

30h 24m

2 stops

8:55 am - 2:15 pm

HAN

STL

66h 20m

2 stops

$1,114Multiple Airlines

Tue, Nov 3 - Tue, Nov 17

10:12 am - 7:15 am

STL

HAN

57h 03m

2 stops

7:30 pm - 11:59 pm

HAN

STL

40h 29m

2 stops

$1,195Multiple Airlines

Wed, Oct 14 - Fri, Oct 23

11:01 am - 7:15 am

STL

HAN

32h 14m

2 stops

7:30 pm - 12:27 am

HAN

STL

40h 57m

2 stops

$1,213Qatar Airways

Thu, Sep 10 - Mon, Sep 14

11:31 am - 6:55 am

STL

HAN

30h 24m

2 stops

7:10 pm - 11:58 pm

HAN

STL

41h 48m

2 stops

$1,221Qatar Airways

Tue, Nov 3 - Tue, Nov 17

10:16 am - 3:35 pm

STL

HAN

41h 19m

2 stops

10:55 am - 10:59 pm

HAN

STL

48h 04m

2 stops

$1,292Cathay Pacific

Wed, Aug 12 - Wed, Aug 19

6:00 am - 10:15 pm

STL

HAN

28h 15m

2 stops

11:35 pm - 12:40 pm

HAN

STL

49h 05m

3 stops

$1,371United Airlines

Sun, Oct 11 - Thu, Oct 22

4:40 pm - 4:50 pm

STL

HAN

36h 10m

2 stops

5:30 pm - 2:20 pm

HAN

STL

32h 50m

3 stops

$1,466Multiple Airlines

Sat, Oct 17 - Tue, Oct 27

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Malaysia Airlines flights from St. Louis to Hanoi

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

Malaysia Airlines

Nov 9

STL7:00 amLambert-St Louis

40h 00m

3 stops

HAN12:00 pmHanoi Noibai

Nov 16

HAN1:00 pmHanoi Noibai

47h 42m

3 stops

STL11:42 pmLambert-St Louis

$4,591

Malaysia Airlines

Nov 2

STL7:00 amLambert-St Louis

40h 00m

3 stops

HAN12:00 pmHanoi Noibai

Nov 13

HAN1:00 pmHanoi Noibai

47h 42m

3 stops

STL11:42 pmLambert-St Louis

$21,453

Malaysia Airlines

Nov 9

STL7:00 amLambert-St Louis

40h 00m

3 stops

HAN12:00 pmHanoi Noibai

Nov 16

HAN1:00 pmHanoi Noibai

47h 42m

3 stops

STL11:42 pmLambert-St Louis

$22,495

United Airlines flights from St. Louis to Hanoi

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

United Airlines

Oct 11

STL6:00 amLambert-St Louis

28h 15m

2 stops

HAN10:15 pmHanoi Noibai

Oct 22

HAN11:35 pmHanoi Noibai

49h 05m

3 stops

STL12:40 pmLambert-St Louis

$1,371

United Airlines

Aug 12

STL8:00 amLambert-St Louis

26h 15m

2 stops

HAN10:15 pmHanoi Noibai

Aug 19

HAN11:35 pmHanoi Noibai

52h 03m

3 stops

STL3:38 pmLambert-St Louis

$1,573

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

St. LouisHanoi

STL - HAN

STLHAN

Lambert-St Louis

Sun 10/11

4:40 pm-1:55 pm

2 stops57h 15m

Hanoi Noibai

Thu 10/22

7:30 pm-11:59 pm

2 stops40h 29m

$1,078

St. LouisHanoi

STL - HAN

STLHAN

Lambert-St Louis

Mon 11/9

3:11 pm-6:55 am

2 stops50h 44m

Hanoi Noibai

Mon 11/16

7:10 pm-2:15 pm

2 stops56h 05m

$1,086

St. LouisHanoi

STL - HAN

STLHAN

Lambert-St Louis

Mon 11/9

7:29 am-12:20 pm

2 stops39h 51m

Hanoi Noibai

Mon 11/16

7:10 pm-2:15 pm

2 stops56h 05m

$1,111

St. LouisHanoi

STL - HAN

STLHAN

Lambert-St Louis

Tue 11/3

11:31 am-6:55 am

2 stops30h 24m

Hanoi Noibai

Tue 11/17

8:55 am-2:15 pm

2 stops66h 20m

$1,114

St. LouisHanoi

STL - HAN

STLHAN

Lambert-St Louis

Wed 10/14

10:12 am-7:15 am

2 stops57h 03m

Hanoi Noibai

Fri 10/23

7:30 pm-11:59 pm

2 stops40h 29m

$1,195

St. LouisHanoi

STL - HAN

STLHAN

Lambert-St Louis

Thu 9/10

11:01 am-7:15 am

2 stops32h 14m

Hanoi Noibai

Mon 9/14

7:30 pm-12:27 am

2 stops40h 57m

$1,213

St. LouisHanoi

STL - HAN

STLHAN

Lambert-St Louis

Tue 11/3

11:31 am-6:55 am

2 stops30h 24m

Hanoi Noibai

Tue 11/17

7:10 pm-11:58 pm

2 stops41h 48m

$1,221

St. LouisHanoi

STL - HAN

STLHAN

Lambert-St Louis

Wed 8/12

10:16 am-3:35 pm

2 stops41h 19m

Hanoi Noibai

Wed 8/19

10:55 am-10:59 pm

2 stops48h 04m

$1,292

St. LouisHanoi

STL - HAN

STLHAN

Lambert-St Louis

Sun 10/11

6:00 am-10:15 pm

2 stops28h 15m

Hanoi Noibai

Thu 10/22

11:35 pm-12:40 pm

3 stops49h 05m

$1,371

Quickest round-trip

St. LouisHanoi

STL - HAN

STLHAN

Lambert-St Louis

Sat 10/17

4:40 pm-4:50 pm

2 stops36h 10m

Hanoi Noibai

Tue 10/27

5:30 pm-2:20 pm

3 stops32h 50m

$1,466

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 15 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?

Korean Air and United Airlines are the most popular carriers 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 35m
Direct flights	None

The fastest flight from St. Louis to Hanoi takes 27h 35m

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 35m.
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.