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.

$541 Cheap Flights from St. Louis to Hanoi in 2026

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.

7:24 am - 12:20 pmSTL Lambert-St Louis-HAN Hanoi Noibai

39h 56m2 stops Chicago O'Hare Intl Doha Hamad Intl

7:10 pm - 6:17 pmHAN Hanoi Noibai-STL Lambert-St Louis

36h 07m2 stops Doha Hamad Intl Chicago O'Hare Intl

$1,040Qatar Airways

Mon, Nov 9 - Mon, Nov 16

11:01 am - 7:15 amSTL Lambert-St Louis-HAN Hanoi Noibai

32h 14m2 stops Chicago O'Hare Intl Doha Hamad Intl

7:30 pm - 8:44 pmHAN Hanoi Noibai-STL Lambert-St Louis

37h 14m2 stops Doha Hamad Intl Chicago O'Hare Intl

$1,040Qatar Airways

Mon, Sep 14 - Mon, Sep 21

6:00 am - 7:15 amSTL Lambert-St Louis-HAN Hanoi Noibai

37h 15m2 stops Chicago O'Hare Intl Doha Hamad Intl

7:30 pm - 8:44 pmHAN Hanoi Noibai-STL Lambert-St Louis

37h 14m2 stops Doha Hamad Intl Chicago O'Hare Intl

$1,042Qatar Airways

Tue, Sep 8 - Tue, Sep 22

2:54 pm - 6:30 pmSTL Lambert-St Louis-HAN Hanoi Noibai

38h 36m2 stops Dallas/Fort Worth Hong Kong Intl

11:15 am - 7:22 pmHAN Hanoi Noibai-STL Lambert-St Louis

45h 07m2 stops Hong Kong Intl Chicago O'Hare Intl

$1,070Multiple Airlines

Mon, Nov 9 - Mon, Nov 16

2:54 pm - 6:30 pmSTL Lambert-St Louis-HAN Hanoi Noibai

38h 36m2 stops Dallas/Fort Worth Hong Kong Intl

7:30 pm - 4:43 pmHAN Hanoi Noibai-STL Lambert-St Louis

34h 13m2 stops Hong Kong Intl Chicago O'Hare Intl

$1,070Multiple Airlines

Mon, Nov 9 - Mon, Nov 16

3:34 pm - 6:10 pmSTL Lambert-St Louis-HAN Hanoi Noibai

38h 36m2 stops Dallas/Fort Worth Hong Kong Intl

7:10 pm - 11:42 pmHAN Hanoi Noibai-STL Lambert-St Louis

40h 32m2 stops Hong Kong Intl Dallas/Fort Worth

$1,070Multiple Airlines

Tue, Sep 29 - Tue, Oct 6

1:06 pm - 6:55 amSTL Lambert-St Louis-HAN Hanoi Noibai

28h 49m2 stops Chicago O'Hare Intl Doha Hamad Intl

7:10 pm - 11:58 pmHAN Hanoi Noibai-STL Lambert-St Louis

41h 48m2 stops Doha Hamad Intl Chicago O'Hare Intl

$1,080Qatar Airways

Sun, Jan 17 - Sun, Jan 31

6:30 am - 9:55 amSTL Lambert-St Louis-HAN Hanoi Noibai

39h 25m2 stops Los Angeles Hong Kong Intl

10:55 am - 11:59 pmHAN Hanoi Noibai-STL Lambert-St Louis

49h 04m2 stops Hong Kong Intl Seattle/Tacoma Intl

$1,160Cathay Pacific

Wed, Sep 30 - Sun, Oct 4

1:30 pm - 7:15 amSTL Lambert-St Louis-HAN Hanoi Noibai

29h 45m2 stops Chicago O'Hare Intl Doha Hamad Intl

7:30 pm - 11:59 pmHAN Hanoi Noibai-STL Lambert-St Louis

40h 29m2 stops Doha Hamad Intl Seattle/Tacoma Intl

$1,162Multiple Airlines

Sun, Oct 11 - Fri, Oct 16

7:24 am - 6:30 pmSTL Lambert-St Louis-HAN Hanoi Noibai

46h 06m2 stops Chicago O'Hare Intl Hong Kong Intl

7:30 pm - 6:22 pmHAN Hanoi Noibai-STL Lambert-St Louis

35h 52m2 stops Hong Kong Intl Chicago O'Hare Intl

$1,178Cathay Pacific

Sun, Nov 15 - Sun, Nov 29

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United Airlines flights from St. Louis to Hanoi

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

United Airlines

Sep 30

STL7:08 amLambert-St Louis

27h 07m

2 stops

HAN10:15 pmHanoi Noibai

Oct 4

HAN11:35 pmHanoi Noibai

48h 38m

3 stops

STL12:13 pmLambert-St Louis

$1,202

United Airlines

Sep 30

STL9:04 amLambert-St Louis

25h 11m

2 stops

HAN10:15 pmHanoi Noibai

Oct 4

HAN11:35 pmHanoi Noibai

49h 05m

3 stops

STL12:40 pmLambert-St Louis

$1,204

United Airlines

Sep 30

STL12:20 pmLambert-St Louis

45h 55m

2 stops

HAN10:15 pmHanoi Noibai

Oct 4

HAN11:35 pmHanoi Noibai

48h 38m

3 stops

STL12:13 pmLambert-St Louis

$1,210

Qatar Airways flights from St. Louis to Hanoi

Our best Qatar Airways deals on St. Louis to Hanoi flight tickets

Qatar Airways

Nov 9

STL7:24 amLambert-St Louis

34h 31m

2 stops

HAN6:55 amHanoi Noibai

Nov 16

HAN7:10 pmHanoi Noibai

37h 12m

2 stops

STL7:22 pmLambert-St Louis

$1,040

Qatar Airways

Sep 8

STL6:00 amLambert-St Louis

37h 15m

2 stops

HAN7:15 amHanoi Noibai

Sep 22

HAN7:30 pmHanoi Noibai

37h 14m

2 stops

STL8:44 pmLambert-St Louis

$1,042

Qatar Airways

Jan 17

STL1:06 pmLambert-St Louis

28h 49m

2 stops

HAN6:55 amHanoi Noibai

Jan 31

HAN7:10 pmHanoi Noibai

41h 48m

2 stops

STL11:58 pmLambert-St Louis

$1,080

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

St. LouisHanoi

STL Lambert-St Louis - HAN Hanoi Noibai

STLHAN

Lambert-St Louis

Mon 11/9

7:24 am-12:20 pm

2 stops39h 56m

Hanoi Noibai

Mon 11/16

7:10 pm-6:17 pm

2 stops36h 07m

$1,040

Quickest round-trip

St. LouisHanoi

STL Lambert-St Louis - HAN Hanoi Noibai

STLHAN

Lambert-St Louis

Mon 9/14

11:01 am-7:15 am

2 stops32h 14m

Hanoi Noibai

Mon 9/21

7:30 pm-8:44 pm

2 stops37h 14m

$1,040

St. LouisHanoi

STL Lambert-St Louis - HAN Hanoi Noibai

STLHAN

Lambert-St Louis

Tue 9/8

6:00 am-7:15 am

2 stops37h 15m

Hanoi Noibai

Tue 9/22

7:30 pm-8:44 pm

2 stops37h 14m

$1,042

St. LouisHanoi

STL Lambert-St Louis - HAN Hanoi Noibai

STLHAN

Lambert-St Louis

Mon 11/9

2:54 pm-6:30 pm

2 stops38h 36m

Hanoi Noibai

Mon 11/16

11:15 am-7:22 pm

2 stops45h 07m

$1,070

St. LouisHanoi

STL Lambert-St Louis - HAN Hanoi Noibai

STLHAN

Lambert-St Louis

Mon 11/9

2:54 pm-6:30 pm

2 stops38h 36m

Hanoi Noibai

Mon 11/16

7:30 pm-4:43 pm

2 stops34h 13m

$1,070

St. LouisHanoi

STL Lambert-St Louis - HAN Hanoi Noibai

STLHAN

Lambert-St Louis

Tue 9/29

3:34 pm-6:10 pm

2 stops38h 36m

Hanoi Noibai

Tue 10/6

7:10 pm-11:42 pm

2 stops40h 32m

$1,070

St. LouisHanoi

STL Lambert-St Louis - HAN Hanoi Noibai

STLHAN

Lambert-St Louis

Sun 1/17

1:06 pm-6:55 am

2 stops28h 49m

Hanoi Noibai

Sun 1/31

7:10 pm-11:58 pm

2 stops41h 48m

$1,080

St. LouisHanoi

STL Lambert-St Louis - HAN Hanoi Noibai

STLHAN

Lambert-St Louis

Wed 9/30

6:30 am-9:55 am

2 stops39h 25m

Hanoi Noibai

Sun 10/4

10:55 am-11:59 pm

2 stops49h 04m

$1,160

St. LouisHanoi

STL Lambert-St Louis - HAN Hanoi Noibai

STLHAN

Lambert-St Louis

Sun 10/11

1:30 pm-7:15 am

2 stops29h 45m

Hanoi Noibai

Fri 10/16

7:30 pm-11:59 pm

2 stops40h 29m

$1,162

St. LouisHanoi

STL Lambert-St Louis - HAN Hanoi Noibai

STLHAN

Lambert-St Louis

Sun 11/15

7:24 am-6:30 pm

2 stops46h 06m

Hanoi Noibai

Sun 11/29

7:30 pm-6:22 pm

2 stops35h 52m

$1,178

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 19 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?

Qatar Airways 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

Best Price Found	$541
Fastest flight time	26h 04m
Direct flights	None

The best one-way flight to Hanoi from St. Louis in the past 72 hours is $541. The best round-trip flight deal from St. Louis to Hanoi found on momondo in the last 72 hours is $1,040.

The fastest flight from St. Louis to Hanoi takes 26h 04m

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 26h 04m.
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.