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Cheap flights from Vietnam to St. Louis from $586

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Vietnam to St. Louis departing on 9/30. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Vietnam to St. Louis

Recent round-trip flight deals from Vietnam to St. Louis

Enter your travel dates to find the best prices.
Delta Logo
11:50 pm - 11:39 pm
SGN
-
STL
36h 49m
2 stops
Delta Logo
6:45 am - 11:20 pm
STL
-
SGN
27h 35m
2 stops
$917Delta
Sun, Nov 1 - Tue, Mar 2
Delta Logo
8:00 am - 1:36 am
SGN
-
STL
29h 36m
2 stops
Delta Logo
6:00 am - 11:20 pm
STL
-
SGN
28h 20m
2 stops
$1,017Delta
Sun, Nov 1 - Sat, Jan 30
Korean Air Logo
8:00 am - 11:18 pm
SGN
-
STL
28h 18m
2 stops
Korean Air Logo
6:45 am - 11:20 pm
STL
-
SGN
27h 35m
2 stops
$1,031Korean Air
Mon, Nov 2 - Thu, Nov 5
United Airlines Logo
11:05 pm - 2:18 pm
SGN
-
STL
28h 13m
2 stops
United Airlines Logo
6:45 pm - 10:55 pm
STL
-
SGN
39h 10m
3 stops
$1,295United Airlines
Mon, Nov 2 - Thu, Nov 5
United Airlines Logo
6:00 am - 8:59 pm
SGN
-
STL
27h 59m
3 stops
United Airlines Logo
8:15 pm - 10:55 pm
STL
-
SGN
37h 40m
3 stops
$1,306United Airlines
Mon, Nov 2 - Thu, Nov 5
Multiple Airlines Logo
8:00 pm - 11:59 pm
SGN
-
STL
39h 59m
2 stops
Multiple Airlines Logo
8:00 am - 12:15 am
STL
-
SGN
28h 15m
2 stops
$1,392Multiple Airlines
Thu, Jul 2 - Thu, Jul 9
United Airlines Logo
6:00 am - 9:59 pm
SGN
-
STL
27h 59m
3 stops
United Airlines Logo
8:15 pm - 10:55 pm
STL
-
SGN
37h 40m
3 stops
$1,521United Airlines
Sun, Nov 1 - Tue, Mar 2
United Airlines Logo
7:00 am - 11:44 pm
SGN
-
STL
28h 44m
2 stops
United Airlines Logo
5:10 am - 10:05 pm
STL
-
SGN
28h 55m
3 stops
$1,637United Airlines
Thu, Jul 2 - Thu, Jul 9
United Airlines Logo
7:00 am - 11:57 pm
SGN
-
STL
28h 57m
3 stops
United Airlines Logo
6:00 am - 10:05 pm
STL
-
SGN
28h 05m
3 stops
$1,645United Airlines
Thu, Jul 2 - Thu, Jul 9
Vietnam Airlines Logo
6:40 pm - 5:53 pm
SGN
-
STL
36h 13m
1 stop
Vietnam Airlines Logo
7:06 pm - 4:45 am
STL
-
SGN
44h 39m
1 stop
$4,863Vietnam Airlines
Sun, Nov 1 - Tue, Mar 2

United Airlines flights from Vietnam to St. Louis

Our best United Airlines deals on Vietnam to St. Louis flight tickets
United Airlines
Nov 2
SGN11:05 pmHo Chi Minh City
28h 13m
2 stops
STL2:18 pmLambert-St Louis
Nov 5
STL6:45 pmLambert-St Louis
39h 10m
3 stops
SGN10:55 pmHo Chi Minh City
$1,295
United Airlines
Nov 2
SGN6:00 amHo Chi Minh City
27h 59m
3 stops
STL8:59 pmLambert-St Louis
Nov 5
STL8:15 pmLambert-St Louis
37h 40m
3 stops
SGN10:55 pmHo Chi Minh City
$1,306
United Airlines
Jul 2
SGN7:00 amHo Chi Minh City
28h 44m
2 stops
STL11:44 pmLambert-St Louis
Jul 9
STL5:10 amLambert-St Louis
28h 55m
3 stops
SGN10:05 pmHo Chi Minh City
$1,637

momondo Fare Finder

 
Customize your flight search to find flights from Vietnam to St. Louis that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated May 19, 2026.
Use the filters below to find and compare flights from Vietnam to St. Louis that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Ho Chi Minh CitySt. Louis

SGN - STL

SGNSTL

Ho Chi Minh City

Sun 11/1

11:50 pm-11:39 pm

2 stops36h 49m

Lambert-St Louis

Tue 3/2

6:45 am-11:20 pm

2 stops27h 35m

$917

Ho Chi Minh CitySt. Louis

SGN - STL

SGNSTL

Ho Chi Minh City

Sun 11/1

8:00 am-1:36 am

2 stops29h 36m

Lambert-St Louis

Sat 1/30

6:00 am-11:20 pm

2 stops28h 20m

$1,017
Quickest round-trip

Ho Chi Minh CitySt. Louis

SGN - STL

SGNSTL

Ho Chi Minh City

Mon 11/2

8:00 am-11:18 pm

2 stops28h 18m

Lambert-St Louis

Thu 11/5

6:45 am-11:20 pm

2 stops27h 35m

$1,031

Ho Chi Minh CitySt. Louis

SGN - STL

SGNSTL

Ho Chi Minh City

Mon 11/2

11:05 pm-2:18 pm

2 stops28h 13m

Lambert-St Louis

Thu 11/5

6:45 pm-10:55 pm

3 stops39h 10m

$1,295

Ho Chi Minh CitySt. Louis

SGN - STL

SGNSTL

Ho Chi Minh City

Mon 11/2

6:00 am-8:59 pm

3 stops27h 59m

Lambert-St Louis

Thu 11/5

8:15 pm-10:55 pm

3 stops37h 40m

$1,306

Ho Chi Minh CitySt. Louis

SGN - STL

SGNSTL

Ho Chi Minh City

Thu 7/2

8:00 pm-11:59 pm

2 stops39h 59m

Lambert-St Louis

Thu 7/9

8:00 am-12:15 am

2 stops28h 15m

$1,392

Ho Chi Minh CitySt. Louis

SGN - STL

SGNSTL

Ho Chi Minh City

Sun 11/1

6:00 am-9:59 pm

3 stops27h 59m

Lambert-St Louis

Tue 3/2

8:15 pm-10:55 pm

3 stops37h 40m

$1,521

Ho Chi Minh CitySt. Louis

SGN - STL

SGNSTL

Ho Chi Minh City

Thu 7/2

7:00 am-11:44 pm

2 stops28h 44m

Lambert-St Louis

Thu 7/9

5:10 am-10:05 pm

3 stops28h 55m

$1,637

Ho Chi Minh CitySt. Louis

SGN - STL

SGNSTL

Ho Chi Minh City

Thu 7/2

7:00 am-11:57 pm

3 stops28h 57m

Lambert-St Louis

Thu 7/9

6:00 am-10:05 pm

3 stops28h 05m

$1,645

Ho Chi Minh CitySt. Louis

SGN - STL

SGNSTL

Ho Chi Minh City

Sun 11/1

6:40 pm-5:53 pm

1 stop36h 13m

Lambert-St Louis

Tue 3/2

7:06 pm-4:45 am

1 stop44h 39m

$4,863

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to St. Louis from

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

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 Vietnam to Lambert-St Louis?

Delta is the most popular carrier operating from Vietnam to Lambert-St Louis

Cheap Vietnam to St. Louis flight deals and tips

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

Fastest flight time

39h 59m

Direct flights

None
The fastest flight from Vietnam to St. Louis takes 39h 59m
There are no direct flights from Vietnam to St. Louis. There are no popular flight routes from Vietnam to St. Louis.
Search flight deals

Frequently asked questions about flying from Vietnam to St. Louis

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

    Prices for flights from Vietnam to Lambert-St Louis Airport were last updated today.

  • How many operators does momondo search for flights from Vietnam to Lambert-St Louis Airport?

  • How old do you have to be to fly from Vietnam to Lambert-St Louis 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 Vietnam to Lambert-St Louis Airport.

  • What documentation or ID do you need to fly to Lambert-St Louis Airport?

    The necessary travel and health documents for your Lambert-St Louis 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.

Best airlines flying from Vietnam to St. Louis

Compare and see reviews for airlines that fly from Vietnam to St. Louis with momondo
Airline
Rating
Free Cancellation
Price
Japan AirlinesPriceFrom $899Free CancellationRating
8.3
1,826 reviews
Search Japan Airlines flights

Traveling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
St. Charles
Chesterfield
Hermann
Fairview Heights
Maryland Heights
Florissant
O'Fallon
St. Peters
Collinsville
Alton
Wentzville
Fenton
Farmington
Festus
Eureka
Clayton
Litchfield
Edwardsville
Shrewsbury
Grafton

Why use momondo?

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

It is quick and easy to find Vietnam to St. Louis flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to St. Louis that suits you.

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

Yes. All flights to St. Louis from Vietnam on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

Once all potential Vietnam to St. Louis flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

Yes momondo offers price alerts on flights to St. Louis from Vietnam. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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