$494+ Cheap flights from St. Louis (STL) to Vietnam
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/22. Fares are subject to change and may not be available on all flights or dates of travel.
STL — SGN
ago. 19 — ago. 261
1 adult, Economy
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Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from St. Louis to Vietnam
Keep the following information in mind while searching for St. Louis to Vietnam flight deals. Data was last updated agosto 14, 2025.
Round-trip from | $917 (Trip.com) |
|---|---|
One-way from | $494 (American Airlines) |
Popular in | December |
Cheapest in | September |
Average price | $1,061 |
Find flight deals from St. Louis to Vietnam
Cheapest flights from St. Louis to VietnamExplore the most affordable flight options available from St. Louis to Vietnam. Find the lowest fares from popular airlines and budget airlines, with prices last updated on agosto 14, 2025.
Explore the most affordable flight options available from St. Louis to Vietnam. Find the lowest fares from popular airlines and budget airlines, with prices last updated on agosto 14, 2025.
This oojo deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 9/86:30 pmSTL - SGN
2 stops27h 10mChina Airlines
dom. 10/125:30 pmSGN - STL
2 stops42h 33mChina Airlines
Deal found 8/13![China Airlines logo]()
$931
This oojo deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 9/93:35 pmSTL - SGN
2 stops36h 45mChina Airlines
lun. 10/2010:50 amSGN - STL
2 stops49h 13mChina Airlines
Deal found 8/14![China Airlines logo]()
$932
This oojo deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 11/268:40 amSTL - HAN
2 stops36h 25mCathay Pacific
dom. 12/77:25 pmHAN - STL
2 stops39h 57mCathay Pacific
Deal found 8/12![Cathay Pacific logo]()
$938
This oojo deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 8/206:45 amSTL - SGN
2 stops46h 35mCathay Pacific
mié. 8/276:20 pmSGN - STL
2 stops40h 49mCathay Pacific
Deal found 8/13![Cathay Pacific logo]()
$952
This oojo deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 10/198:05 pmSTL - SGN
2 stops50h 00mCathay Pacific
lun. 11/1711:35 amSGN - STL
2 stops24h 23mCathay Pacific
Deal found 8/14![Cathay Pacific logo]()
$955
This Cathay Pacific deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 9/18:50 amSTL - SGN
2 stops37h 15mMultiple Airlines
lun. 9/1511:05 amSGN - STL
2 stops23h 45mMultiple Airlines
Deal found 8/14![Multiple Airlines logo]()
$966
This Cathay Pacific deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 8/316:45 amSTL - SGN
2 stops39h 20mMultiple Airlines
dom. 9/141:45 pmSGN - STL
2 stops45h 14mMultiple Airlines
Deal found 8/14![Multiple Airlines logo]()
$969
This Cathay Pacific deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 8/316:45 amSTL - SGN
2 stops39h 20mCathay Pacific
lun. 9/1511:05 amSGN - STL
2 stops23h 45mCathay Pacific
Deal found 8/14![Cathay Pacific logo]()
$981
This Ovago deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 9/126:20 amSTL - SGN
2 stops47h 00mCathay Pacific
lun. 10/611:05 amSGN - STL
2 stops24h 44mCathay Pacific
Deal found 8/13![Cathay Pacific logo]()
$987
This American Airlines deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 9/277:16 amSTL - HAN
2 stops26h 34mAmerican Airlines
sáb. 10/411:20 pmHAN - STL
2 stops32h 56mAmerican Airlines
Deal found 8/13![American Airlines logo]()
$988
This Delta deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 9/33:36 pmSTL - SGN
2 stops32h 59mDelta
lun. 9/157:35 amSGN - STL
2 stops27h 49mDelta
Deal found 8/14![Delta logo]()
$990
This Delta deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 8/305:11 pmSTL - SGN
2 stops31h 24mDelta
lun. 9/157:35 amSGN - STL
2 stops29h 03mDelta
Deal found 8/14![Delta logo]()
$992
Cheapflights Fare Finder
Customize your flight search to find flights from St. Louis to Vietnam 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, Cheapflights users made 2,558,603 searches. Data last updated agosto 14, 2025.
Use the filters below to find and compare flights from St. Louis to Vietnam that are best for you.
Fly from
St. Louis
Fly to
Vietnam
Route
Depart
Return
Price
St. LouisHo Chi Minh City
STL - SGN
STLSGN
Lambert-St Louis
lun. 9/8
6:30 pm-4:20 pm
2 stops33h 50m
Ho Chi Minh City
dom. 10/12
10:50 am-12:03 am
2 stops49h 13m
$931
St. LouisHanoi
STL - HAN
STLHAN
Lambert-St Louis
mié. 11/26
8:40 am-10:05 am
2 stops36h 25m
Hanoi Noibai
dom. 12/7
7:25 pm-10:22 pm
2 stops39h 57m
$938
St. LouisHo Chi Minh City
STL - SGN
STLSGN
Lambert-St Louis
lun. 9/1
8:50 am-10:05 am
2 stops37h 15m
Ho Chi Minh City
lun. 9/15
11:05 am-10:50 pm
2 stops23h 45m
$966
St. LouisHo Chi Minh City
STL - SGN
STLSGN
Lambert-St Louis
dom. 8/31
6:45 am-10:05 am
2 stops39h 20m
Ho Chi Minh City
dom. 9/14
1:45 pm-10:59 pm
2 stops45h 14m
$969
St. LouisHo Chi Minh City
STL - SGN
STLSGN
Lambert-St Louis
jue. 9/4
3:59 pm-8:25 pm
2 stops40h 26m
Ho Chi Minh City
lun. 9/15
11:05 am-10:50 pm
2 stops23h 45m
$981
St. LouisHo Chi Minh City
STL - SGN
STLSGN
Lambert-St Louis
dom. 8/31
6:45 am-10:05 am
2 stops39h 20m
Ho Chi Minh City
lun. 9/15
11:05 am-10:50 pm
2 stops23h 45m
$981
St. LouisHo Chi Minh City
STL - SGN
STLSGN
Lambert-St Louis
mar. 11/25
8:40 am-10:35 am
2 stops36h 55m
Ho Chi Minh City
vie. 12/12
7:35 pm-12:12 am
2 stops41h 37m
$987
St. LouisHanoi
STL - HAN
STLHAN
Lambert-St Louis
sáb. 9/27
7:16 am-9:50 pm
2 stops26h 34m
Hanoi Noibai
sáb. 10/4
11:20 pm-8:16 pm
2 stops32h 56m
$988
St. LouisHo Chi Minh City
STL - SGN
STLSGN
Lambert-St Louis
mié. 9/3
3:36 pm-12:35 pm
2 stops32h 59m
Ho Chi Minh City
lun. 9/15
7:35 am-11:24 pm
2 stops27h 49m
$990
St. LouisHo Chi Minh City
STL - SGN
STLSGN
Lambert-St Louis
jue. 1/29
7:30 am-12:50 pm
2 stops40h 20m
Ho Chi Minh City
mié. 3/18
11:40 pm-4:55 pm
2 stops29h 15m
$991
Showing 1-10 of 42 results
Best time to book a flight from St. Louis to Vietnam
Have a flexible travel schedule? Discover the best time to fly to Vietnam from St. Louis with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from St. Louis to Vietnam
What is the cheapest month to book a flight from St. Louis to Vietnam?
Currently, August is the cheapest month in which you can book a flight from St. Louis to Vietnam (average of $910). Flying from St. Louis to Vietnam in June is currently the most expensive (average of $1,430). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
What is the cheapest time of day to fly from STL to VN?
Find hourly flight availability from St. Louis to Vietnam. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated agosto 14, 2025.
When flying from St. Louis to Vietnam, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.
Reviews of airlines servicing Vietnam
Get insights into the airlines that provide service to Vietnam. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Vietnam. Reviews last updated agosto 14, 2025.
Read through reviews of airlines operating flights from St. Louis to Vietnam, such as ANA, Japan Airlines, and Delta. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Crew
8.7
Boarding
8.6
Food
7.7
Comfort
8.2
Entertainment
7.9
Overall
8.4
Reviews
1 / 20
2.0
MediocreAnonymous,Jul 2025
MNL - NRT
Crew
8.7
Boarding
8.6
Food
7.7
Comfort
8.2
Entertainment
7.9
Overall
8.4
Reviews
1 / 20
2.0
MediocreAnonymous,Jul 2025
MNL - NRT
Crew
8.7
Boarding
8.6
Food
7.7
Comfort
8.2
Entertainment
7.9
Overall
8.4
Reviews
1 / 20
2.0
MediocreAnonymous,Jul 2025
MNL - NRT
Crew
8.7
Boarding
8.6
Food
7.7
Comfort
8.2
Entertainment
7.9
Overall
8.4
Reviews
1 / 20
2.0
MediocreAnonymous,Jul 2025
MNL - NRT
Crew
8.7
Boarding
8.6
Food
7.7
Comfort
8.2
Entertainment
7.9
Overall
8.4
Reviews
1 / 20
2.0
MediocreAnonymous,Jul 2025
MNL - NRT
Crew
8.7
Boarding
8.6
Food
7.7
Comfort
8.2
Entertainment
7.9
Overall
8.4
Reviews
1 / 20
2.0
MediocreAnonymous,Jul 2025
MNL - NRT
Related info for your journey
Find useful and relevant information for your journey from St. Louis to Vietnam. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Browse thousands of different options on Cheapflights for your next trip
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Alternative routes for St. Louis to Vietnam
See prices for flight routes from nearby airports that may be better suited for you.
Top 10 airlines flying from St. Louis to Vietnam
Discover the top 10 airlines that operate flights from St. Louis to Vietnam. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated agosto 14, 2025.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$761 | Average$1,703 | FlexibilityNo cancel fee | On-time81% | |
| Cheapest$920 | Average$1,465 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$976 | Average$1,189 | FlexibilityNo cancel fee | On-time79% | |
| Cheapest$988 | Average$1,206 | FlexibilityNo cancel fee | On-time80% | |
| Cheapest$995 | Average$1,284 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$1,005 | Average$1,166 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$1,065 | Average$1,076 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$1,193 | Average$1,362 | FlexibilityNo cancel fee | On-time74% | |
| Cheapest$1,246 | Average$1,404 | FlexibilityNo cancel fee | On-time72% | |
| Cheapest$1,437 | Average$1,761 | FlexibilityNo cancel fee | On-time67% |