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.

$542 Cheap Flights from St. Louis to Hanoi in 2026/27

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.

7:29 am - 12:20 pmSTL Lambert-St Louis-HAN Hanoi Noibai

39h 51m2 stops Chicago O'Hare Intl Doha Hamad Intl

7:10 pm - 9:08 pmHAN Hanoi Noibai-STL Lambert-St Louis

38h 58m2 stops Doha Hamad Intl Chicago O'Hare Intl

$1,047Qatar Airways

Sun, Feb 21 - Tue, Mar 2

5:05 am - 10:05 amSTL Lambert-St Louis-HAN Hanoi Noibai

40h 00m2 stops Chicago O'Hare Intl Hong Kong Intl

11:15 am - 4:43 pmHAN Hanoi Noibai-STL Lambert-St Louis

42h 28m2 stops Hong Kong Intl Chicago O'Hare Intl

$1,084Multiple Airlines

Mon, Nov 9 - Mon, Nov 16

5:05 am - 10:05 amSTL Lambert-St Louis-HAN Hanoi Noibai

40h 00m2 stops Chicago O'Hare Intl Hong Kong Intl

11:15 am - 4:43 pmHAN Hanoi Noibai-STL Lambert-St Louis

42h 28m2 stops Hong Kong Intl Chicago O'Hare Intl

$1,085Multiple Airlines

Mon, Nov 9 - Mon, Nov 16

7:13 am - 11:10 amSTL Lambert-St Louis-HAN Hanoi Noibai

38h 57m2 stops Atlanta Hartsfield-Jackson Incheon Intl

12:20 pm - 4:43 pmHAN Hanoi Noibai-STL Lambert-St Louis

41h 23m2 stops Incheon Intl Atlanta Hartsfield-Jackson

$1,122Korean Air

Thu, Nov 12 - Mon, Nov 16

6:00 am - 11:10 amSTL Lambert-St Louis-HAN Hanoi Noibai

40h 10m2 stops Atlanta Hartsfield-Jackson Incheon Intl

11:05 pm - 6:29 pmHAN Hanoi Noibai-STL Lambert-St Louis

32h 24m2 stops Incheon Intl Atlanta Hartsfield-Jackson

$2,369Delta

Fri, Dec 18 - Thu, Dec 31

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Korean Air flights from St. Louis to Hanoi

Our best Korean Air deals on St. Louis to Hanoi flight tickets

Korean Air

Nov 12

STL7:13 amLambert-St Louis

38h 57m

2 stops

HAN11:10 amHanoi Noibai

Nov 16

HAN12:20 pmHanoi Noibai

41h 23m

2 stops

STL4:43 pmLambert-St Louis

$1,122

Korean Air

Nov 12

STL7:13 amLambert-St Louis

38h 57m

2 stops

HAN11:10 amHanoi Noibai

Nov 16

HAN12:20 pmHanoi Noibai

41h 23m

2 stops

STL4:43 pmLambert-St Louis

$1,123

Malaysia Airlines flights from St. Louis to Hanoi

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

Malaysia Airlines

Jan 20

STL6:01 amLambert-St Louis

40h 59m

3 stops

HAN12:00 pmHanoi Noibai

Feb 12

HAN1:00 pmHanoi Noibai

47h 48m

3 stops

STL11:48 pmLambert-St Louis

$2,589

Malaysia Airlines

Feb 11

STL6:30 amLambert-St Louis

64h 30m

3 stops

HAN12:00 pmHanoi Noibai

Mar 11

HAN1:00 pmHanoi Noibai

47h 59m

3 stops

STL11:59 pmLambert-St Louis

$3,190

Malaysia Airlines

Dec 18

STL6:01 amLambert-St Louis

40h 59m

3 stops

HAN12:00 pmHanoi Noibai

Dec 31

HAN1:00 pmHanoi Noibai

47h 44m

3 stops

STL11:44 pmLambert-St Louis

$4,376

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

St. LouisHanoi

STL Lambert-St Louis - HAN Hanoi Noibai

STLHAN

Lambert-St Louis

Sun 2/21

7:29 am-12:20 pm

2 stops39h 51m

Hanoi Noibai

Tue 3/2

7:10 pm-9:08 pm

2 stops38h 58m

$1,047

St. LouisHanoi

STL Lambert-St Louis - HAN Hanoi Noibai

STLHAN

Lambert-St Louis

Mon 11/9

5:05 am-10:05 am

2 stops40h 00m

Hanoi Noibai

Mon 11/16

11:15 am-4:43 pm

2 stops42h 28m

$1,084

St. LouisHanoi

STL Lambert-St Louis - HAN Hanoi Noibai

STLHAN

Lambert-St Louis

Mon 11/9

5:05 am-10:05 am

2 stops40h 00m

Hanoi Noibai

Mon 11/16

11:15 am-4:43 pm

2 stops42h 28m

$1,085

St. LouisHanoi

STL Lambert-St Louis - HAN Hanoi Noibai

STLHAN

Lambert-St Louis

Thu 11/12

7:13 am-11:10 am

2 stops38h 57m

Hanoi Noibai

Mon 11/16

12:20 pm-4:43 pm

2 stops41h 23m

$1,122

Quickest round-trip

St. LouisHanoi

STL Lambert-St Louis - HAN Hanoi Noibai

STLHAN

Lambert-St Louis

Fri 12/18

6:00 am-11:10 am

2 stops40h 10m

Hanoi Noibai

Thu 12/31

11:05 pm-6:29 pm

2 stops32h 24m

$2,369

Cheapest one-way

St. LouisHanoi

STL Lambert-St Louis - HAN Hanoi Noibai

STLHAN

Lambert-St Louis

Tue 2/23

1:06 pm-12:20 pm

2 stops34h 14m

$542

St. LouisHanoi

STL Lambert-St Louis - HAN Hanoi Noibai

STLHAN

Lambert-St Louis

Tue 2/23

3:04 pm-10:05 am

2 stops54h 01m

$546

St. LouisHanoi

STL Lambert-St Louis - HAN Hanoi Noibai

STLHAN

Lambert-St Louis

Tue 2/23

1:06 pm-12:20 pm

2 stops34h 14m

$547

St. LouisHanoi

STL Lambert-St Louis - HAN Hanoi Noibai

STLHAN

Lambert-St Louis

Tue 2/23

1:06 pm-12:20 pm

2 stops34h 14m

$549

St. LouisHanoi

STL Lambert-St Louis - HAN Hanoi Noibai

STLHAN

Lambert-St Louis

Tue 2/23

1:06 pm-12:20 pm

2 stops34h 14m

$550

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 14 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?

Delta, Cathay Pacific, and EVA Air 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

Best Price Found	$542
Fastest flight time	38h 57m
Direct flights	None

The best one-way flight to Hanoi from St. Louis in the past 72 hours is $542. The best round-trip flight deal from St. Louis to Hanoi found on momondo in the last 72 hours is $1,047.

The fastest flight from St. Louis to Hanoi takes 38h 57m

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 38h 57m.
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.