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Cheap flights from Vietnam to St. Louis from $592

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 9/8. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

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.
Cathay Pacific Logo
11:05 am - 11:42 pm
SGN
-
STL
24h 37m
2 stops
Cathay Pacific Logo
8:55 am - 12:20 am
STL
-
SGN
27h 25m
2 stops
$1,141Cathay Pacific
Wed, Aug 26 - Wed, Sep 2
Multiple Airlines Logo
9:40 am - 2:15 pm
SGN
-
STL
41h 35m
2 stops
Multiple Airlines Logo
3:24 pm - 8:20 am
STL
-
SGN
27h 56m
2 stops
$1,148Multiple Airlines
Mon, Nov 2 - Wed, Feb 3
Cathay Pacific Logo
11:35 am - 10:29 pm
SGN
-
STL
23h 54m
2 stops
Cathay Pacific Logo
11:55 am - 6:35 pm
STL
-
SGN
41h 40m
2 stops
$1,151Cathay Pacific
Wed, Nov 4 - Wed, Feb 3
Qatar Airways Logo
7:40 pm - 9:08 pm
SGN
-
STL
38h 28m
2 stops
Qatar Airways Logo
11:31 am - 7:15 am
STL
-
SGN
30h 44m
2 stops
$1,163Qatar Airways
Mon, Nov 2 - Wed, Feb 3
Cathay Pacific Logo
7:10 am - 9:59 pm
SGN
-
STL
26h 49m
2 stops
Cathay Pacific Logo
6:04 am - 6:35 pm
STL
-
SGN
48h 31m
2 stops
$1,241Cathay Pacific
Thu, Oct 22 - Mon, Oct 26
United Airlines Logo
11:05 pm - 6:06 pm
SGN
-
STL
32h 01m
2 stops
United Airlines Logo
7:04 pm - 10:55 pm
STL
-
SGN
38h 51m
3 stops
$1,376United Airlines
Mon, Nov 2 - Wed, Feb 3
United Airlines Logo
7:00 am - 8:36 pm
SGN
-
STL
25h 36m
2 stops
United Airlines Logo
5:00 am - 10:55 pm
STL
-
SGN
29h 55m
3 stops
$1,378United Airlines
Thu, Oct 22 - Mon, Oct 26
United Airlines Logo
7:00 am - 10:59 pm
SGN
-
STL
27h 59m
3 stops
United Airlines Logo
6:00 am - 10:55 pm
STL
-
SGN
28h 55m
3 stops
$1,386United Airlines
Thu, Oct 22 - Mon, Oct 26
United Airlines Logo
7:00 am - 9:17 pm
SGN
-
STL
26h 17m
3 stops
United Airlines Logo
6:00 am - 10:05 pm
STL
-
SGN
28h 05m
3 stops
$1,586United Airlines
Wed, Aug 26 - Wed, Sep 2
Multiple Airlines Logo
11:45 pm - 5:50 pm
SGN
-
STL
54h 05m
2 stops
Multiple Airlines Logo
3:30 pm - 6:25 am
STL
-
SGN
26h 55m
1 stop
$2,510Multiple Airlines
Wed, Aug 26 - Wed, Sep 2

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Cathay Pacific flights from Vietnam to St. Louis

Our best Cathay Pacific deals on Vietnam to St. Louis flight tickets
Cathay Pacific
Aug 26
SGN11:05 amHo Chi Minh City
24h 37m
2 stops
STL11:42 pmLambert-St Louis
Sep 2
STL8:55 amLambert-St Louis
27h 25m
2 stops
SGN12:20 amHo Chi Minh City
$1,141
Cathay Pacific
Nov 4
SGN11:35 amHo Chi Minh City
23h 54m
2 stops
STL10:29 pmLambert-St Louis
Feb 3
STL11:55 amLambert-St Louis
41h 40m
2 stops
SGN6:35 pmHo Chi Minh City
$1,151
Cathay Pacific
Oct 22
SGN7:10 amHo Chi Minh City
26h 49m
2 stops
STL9:59 pmLambert-St Louis
Oct 26
STL6:04 amLambert-St Louis
48h 31m
2 stops
SGN6:35 pmHo Chi Minh City
$1,241

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
32h 01m
2 stops
STL6:06 pmLambert-St Louis
Feb 3
STL7:04 pmLambert-St Louis
38h 51m
3 stops
SGN10:55 pmHo Chi Minh City
$1,376
United Airlines
Oct 22
SGN7:00 amHo Chi Minh City
25h 36m
2 stops
STL8:36 pmLambert-St Louis
Oct 26
STL5:00 amLambert-St Louis
29h 55m
3 stops
SGN10:55 pmHo Chi Minh City
$1,378
United Airlines
Oct 22
SGN7:00 amHo Chi Minh City
27h 59m
3 stops
STL10:59 pmLambert-St Louis
Oct 26
STL6:00 amLambert-St Louis
28h 55m
3 stops
SGN10:55 pmHo Chi Minh City
$1,386

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 July 14, 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
Quickest round-trip

Ho Chi Minh CitySt. Louis

SGN - STL

SGNSTL

Ho Chi Minh City

Wed 8/26

11:05 am-11:42 pm

2 stops24h 37m

Lambert-St Louis

Wed 9/2

8:55 am-12:20 am

2 stops27h 25m

$1,141

Ho Chi Minh CitySt. Louis

SGN - STL

SGNSTL

Ho Chi Minh City

Mon 11/2

9:40 am-2:15 pm

2 stops41h 35m

Lambert-St Louis

Wed 2/3

3:24 pm-8:20 am

2 stops27h 56m

$1,148

Ho Chi Minh CitySt. Louis

SGN - STL

SGNSTL

Ho Chi Minh City

Wed 11/4

11:35 am-10:29 pm

2 stops23h 54m

Lambert-St Louis

Wed 2/3

11:55 am-6:35 pm

2 stops41h 40m

$1,151

Ho Chi Minh CitySt. Louis

SGN - STL

SGNSTL

Ho Chi Minh City

Mon 11/2

7:40 pm-9:08 pm

2 stops38h 28m

Lambert-St Louis

Wed 2/3

11:31 am-7:15 am

2 stops30h 44m

$1,163

Ho Chi Minh CitySt. Louis

SGN - STL

SGNSTL

Ho Chi Minh City

Thu 10/22

7:10 am-9:59 pm

2 stops26h 49m

Lambert-St Louis

Mon 10/26

6:04 am-6:35 pm

2 stops48h 31m

$1,241

Ho Chi Minh CitySt. Louis

SGN - STL

SGNSTL

Ho Chi Minh City

Mon 11/2

11:05 pm-6:06 pm

2 stops32h 01m

Lambert-St Louis

Wed 2/3

7:04 pm-10:55 pm

3 stops38h 51m

$1,376

Ho Chi Minh CitySt. Louis

SGN - STL

SGNSTL

Ho Chi Minh City

Thu 10/22

7:00 am-8:36 pm

2 stops25h 36m

Lambert-St Louis

Mon 10/26

5:00 am-10:55 pm

3 stops29h 55m

$1,378

Ho Chi Minh CitySt. Louis

SGN - STL

SGNSTL

Ho Chi Minh City

Thu 10/22

7:00 am-10:59 pm

3 stops27h 59m

Lambert-St Louis

Mon 10/26

6:00 am-10:55 pm

3 stops28h 55m

$1,386

Ho Chi Minh CitySt. Louis

SGN - STL

SGNSTL

Ho Chi Minh City

Wed 8/26

7:00 am-9:17 pm

3 stops26h 17m

Lambert-St Louis

Wed 9/2

6:00 am-10:05 pm

3 stops28h 05m

$1,586

Ho Chi Minh CitySt. Louis

SGN - STL

SGNSTL

Ho Chi Minh City

Wed 8/26

11:45 pm-5:50 pm

2 stops54h 05m

Lambert-St Louis

Wed 9/2

3:30 pm-6:25 am

1 stop26h 55m

$2,510

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?

Qatar Airways 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

23h 54m

Direct flights

None
The fastest flight from Vietnam to St. Louis takes 23h 54m
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 $1,222Free CancellationRating
8.3
1,871 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
Fairview Heights
Hermann
Collinsville
Florissant
St. Peters
Maryland Heights
O'Fallon
Alton
Farmington
Wentzville
Clayton
Fenton
Festus
Eureka
Edwardsville
Litchfield
Grafton
Shrewsbury

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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