$546+ 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 10/9. Fares are subject to change and may not be available on all flights or dates of travel.
STL — SGN
Aug 11 — Aug 181
Round-trip
1 adult, Economy
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Find cheap flights from St. Louis to Vietnam with Cheapflights
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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 July 12, 2026.
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 July 12, 2026.
This FlightHub deal was found by Cheapflights users on 7/9. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/166:29 am
STL
- SGN
2 stops43h 21m
Multiple Airlines
Wed 10/78:00 pm
SGN
- STL
2 stops39h 59m
Multiple Airlines
Deal found 7/9![Multiple Airlines logo]()
$1,086
This FlightHub deal was found by Cheapflights users on 7/8. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/76:35 am
STL
- SGN
2 stops43h 15m
Multiple Airlines
Mon 9/218:00 pm
SGN
- STL
2 stops54h 21m
Multiple Airlines
Deal found 7/8![Multiple Airlines logo]()
$1,093
This FlightHub deal was found by Cheapflights users on 7/9. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/93:11 pm
STL
- HAN
2 stops50h 44m
Multiple Airlines
Mon 11/167:10 pm
HAN
- STL
2 stops56h 05m
Multiple Airlines
Deal found 7/9![Multiple Airlines logo]()
$1,128
This Gotogate deal was found by Cheapflights users on 7/8. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/93:19 pm
STL
- SGN
2 stops30h 56m
Multiple Airlines
Wed 9/3011:30 am
SGN
- STL
2 stops38h 51m
Multiple Airlines
Deal found 7/8![Multiple Airlines logo]()
$1,138
This Delta deal was found by Cheapflights users on 7/8. 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.
Wed 11/186:45 am
STL
- SGN
2 stops41h 05m
Delta
Fri 12/42:05 pm
SGN
- STL
2 stops36h 15m
Delta
Deal found 7/8![Delta logo]()
$1,140
This United Airlines deal was found by Cheapflights users on 7/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/255:00 am
STL
- SGN
2 stops52h 50m
United Airlines
Sat 10/3111:05 pm
SGN
- STL
2 stops35h 08m
United Airlines
Deal found 7/10![United Airlines logo]()
$1,147
This United Airlines deal was found by Cheapflights users on 7/12. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/86:15 am
STL
- SGN
3 stops27h 50m
United Airlines
Mon 10/127:00 am
SGN
- STL
2 stops21h 37m
United Airlines
Deal found 7/12![United Airlines logo]()
$1,148
This United Airlines deal was found by Cheapflights users on 7/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/196:14 am
STL
- SGN
2 stops30h 01m
United Airlines
Sun 8/1611:15 pm
SGN
- STL
2 stops34h 45m
United Airlines
Deal found 7/11![United Airlines logo]()
$1,150
This Justfly.com deal was found by Cheapflights users on 7/12. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/246:00 am
STL
- HAN
2 stops42h 20m
Multiple Airlines
Sun 11/87:10 pm
HAN
- STL
2 stops41h 46m
Multiple Airlines
Deal found 7/12![Multiple Airlines logo]()
$1,151
This United Airlines deal was found by Cheapflights users on 7/8. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/76:15 am
STL
- SGN
3 stops27h 50m
United Airlines
Mon 10/1211:15 pm
SGN
- STL
2 stops31h 01m
United Airlines
Deal found 7/8![United Airlines logo]()
$1,151
This United Airlines deal was found by Cheapflights users on 7/7. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/55:10 am
STL
- SGN
3 stops28h 55m
United Airlines
Sat 10/37:00 am
SGN
- STL
3 stops25h 36m
United Airlines
Deal found 7/7![United Airlines logo]()
$1,161
This United Airlines deal was found by Cheapflights users on 7/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/169:00 am
STL
- SGN
3 stops49h 05m
United Airlines
Wed 10/711:15 pm
SGN
- STL
2 stops35h 15m
United Airlines
Deal found 7/10![United Airlines logo]()
$1,165
Best flights from St. Louis to VietnamDiscover carefully curated flight deals from St. Louis to Vietnam that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 12, 2026.
Discover carefully curated flight deals from St. Louis to Vietnam that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 12, 2026.
This FlightHub deal was found by Cheapflights users on 7/10. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/166:29 am
STL
- SGN
2 stops43h 21m
Multiple Airlines
Wed 10/78:00 pm
SGN
- STL
2 stops39h 59m
Multiple Airlines
Deal found 7/10![Multiple Airlines logo]()
$1,086
This Delta deal was found by Cheapflights users on 7/9. 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.
Wed 11/186:45 am
STL
- SGN
2 stops41h 05m
Delta
Fri 12/42:05 pm
SGN
- STL
2 stops36h 15m
Delta
Deal found 7/9![Delta logo]()
$1,140
This United Airlines deal was found by Cheapflights users on 7/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/255:00 am
STL
- SGN
2 stops52h 50m
United Airlines
Sat 10/3111:05 pm
SGN
- STL
2 stops35h 08m
United Airlines
Deal found 7/10![United Airlines logo]()
$1,147
This Korean Air deal was found by Cheapflights users on 7/8. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/187:20 pm
STL
- DAD
2 stops37h 45m
Korean Air
Thu 10/2210:55 pm
DAD
- STL
2 stops29h 28m
Korean Air
Deal found 7/8![Korean Air logo]()
$1,335
This Cathay Pacific deal was found by Cheapflights users on 7/7. 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.
Thu 11/127:00 am
STL
- HAN
2 stops46h 30m
Cathay Pacific
Mon 11/167:30 pm
HAN
- STL
2 stops39h 59m
Cathay Pacific
Deal found 7/7![Cathay Pacific logo]()
$1,394
This oojo deal was found by Cheapflights users on 7/8. 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.
Thu 12/103:24 pm
STL
- DAD
2 stops36h 51m
STARLUX Airlines
Thu 1/146:25 pm
DAD
- STL
2 stops57h 01m
STARLUX Airlines
Deal found 7/8![STARLUX Airlines logo]()
$1,557
This KAYAK deal was found by Cheapflights users on 7/7. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/2410:53 am
STL
- DAD
3 stops46h 57m
Emirates
Mon 8/3111:30 pm
DAD
- STL
3 stops34h 30m
Emirates
Deal found 7/7![Emirates logo]()
$1,602
This FlightHub deal was found by Cheapflights users on 7/8. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/93:11 pm
STL
- HAN
2 stops50h 44m
Multiple Airlines
Mon 11/167:10 pm
HAN
- STL
2 stops56h 05m
Multiple Airlines
Deal found 7/8![Multiple Airlines logo]()
$1,128
This United Airlines deal was found by Cheapflights users on 7/12. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/86:15 am
STL
- SGN
3 stops27h 50m
United Airlines
Mon 10/127:00 am
SGN
- STL
2 stops21h 37m
United Airlines
Deal found 7/12![United Airlines logo]()
$1,148
This Delta deal was found by Cheapflights users on 7/11. 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.
Mon 8/246:00 am
STL
- DAD
2 stops27h 05m
Delta
Mon 8/3110:55 pm
DAD
- STL
2 stops34h 05m
Delta
Deal found 7/11![Delta logo]()
$1,240
This United Airlines deal was found by Cheapflights users on 7/8. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/76:15 am
STL
- SGN
3 stops27h 50m
United Airlines
Mon 10/1211:15 pm
SGN
- STL
2 stops31h 01m
United Airlines
Deal found 7/8![United Airlines logo]()
$1,151
This Justfly.com deal was found by Cheapflights users on 7/11. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/83:24 pm
STL
- HAN
2 stops50h 31m
Multiple Airlines
Sun 1/247:10 pm
HAN
- STL
2 stops56h 16m
Multiple Airlines
Deal found 7/11![Multiple Airlines logo]()
$1,166
This United Airlines deal was found by Cheapflights users on 7/8. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/96:15 am
STL
- SGN
3 stops27h 50m
United Airlines
Wed 9/3011:15 pm
SGN
- STL
2 stops31h 28m
United Airlines
Deal found 7/8![United Airlines logo]()
$1,151
This United Airlines deal was found by Cheapflights users on 7/7. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/56:15 am
STL
- SGN
3 stops27h 50m
United Airlines
Sat 10/311:15 pm
SGN
- STL
2 stops31h 01m
United Airlines
Deal found 7/7![United Airlines logo]()
$1,151
This oojo deal was found by Cheapflights users on 7/9. 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.
Sat 8/17:56 pm
STL
- DAD
2 stops33h 39m
STARLUX Airlines
Mon 8/316:45 pm
DAD
- STL
2 stops55h 21m
STARLUX Airlines
Deal found 7/9![STARLUX Airlines logo]()
$1,581
This Gotogate deal was found by Cheapflights users on 7/10. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 1/63:24 pm
STL
- DAD
2 stops36h 51m
Multiple Airlines
Wed 2/106:25 pm
DAD
- STL
2 stops42h 19m
Multiple Airlines
Deal found 7/10![Multiple Airlines logo]()
$1,309
This United Airlines deal was found by Cheapflights users on 7/8. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/76:00 am
STL
- SGN
3 stops28h 05m
United Airlines
Mon 9/2111:15 pm
SGN
- STL
2 stops31h 16m
United Airlines
Deal found 7/8![United Airlines logo]()
$1,151
This Delta deal was found by Cheapflights users on 7/7. 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.
Sun 12/66:59 pm
STL
- DAD
2 stops37h 31m
Delta
Mon 12/283:45 pm
DAD
- STL
2 stops44h 33m
Delta
Deal found 7/7![Delta logo]()
$1,600
This United Airlines deal was found by Cheapflights users on 7/12. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/116:15 am
STL
- SGN
3 stops27h 50m
United Airlines
Tue 8/187:00 am
SGN
- STL
3 stops39h 10m
United Airlines
Deal found 7/12![United Airlines logo]()
$1,178
This China Airlines deal was found by Cheapflights users on 7/7. 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 China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/246:25 am
STL
- DAD
3 stops38h 35m
Multiple Airlines
Mon 8/315:30 pm
DAD
- STL
2 stops32h 36m
Multiple Airlines
Deal found 7/7![Multiple Airlines logo]()
$1,515
This United Airlines deal was found by Cheapflights users on 7/8. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/106:00 am
STL
- SGN
2 stops27h 55m
United Airlines
Mon 9/1411:15 pm
SGN
- STL
2 stops31h 16m
United Airlines
Deal found 7/8![United Airlines logo]()
$1,180
This Malaysia Airlines deal was found by Cheapflights users on 7/8. 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 Malaysia Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/97:00 am
STL
- HAN
3 stops40h 00m
Malaysia Airlines
Mon 11/161:00 pm
HAN
- STL
3 stops47h 42m
Malaysia Airlines
Deal found 7/8![Malaysia Airlines logo]()
$4,591
This United Airlines deal was found by Cheapflights users on 7/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/185:36 pm
STL
- SGN
3 stops40h 29m
United Airlines
Thu 10/227:00 am
SGN
- STL
2 stops23h 43m
United Airlines
Deal found 7/11![United Airlines logo]()
$1,186
Last-minute flights from St. Louis to VietnamDiscover last-minute flight deals from St. Louis to Vietnam. Data last updated July 12, 2026 and is based on user searches.
Discover last-minute flight deals from St. Louis to Vietnam. Data last updated July 12, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 7/8. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/136:01 am
STL
- SGN
2 stops30h 14m
United Airlines
Mon 9/1411:15 pm
SGN
- STL
2 stops31h 16m
United Airlines
Deal found 7/8![United Airlines logo]()
$1,183
This United Airlines deal was found by Cheapflights users on 7/9. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/144:48 pm
STL
- SGN
3 stops41h 17m
United Airlines
Tue 8/187:00 am
SGN
- STL
3 stops41h 40m
United Airlines
Deal found 7/9![United Airlines logo]()
$1,194
This United Airlines deal was found by Cheapflights users on 7/7. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/145:10 am
STL
- SGN
2 stops31h 05m
United Airlines
Thu 8/67:00 am
SGN
- STL
3 stops39h 07m
United Airlines
Deal found 7/7![United Airlines logo]()
$1,231
This United Airlines deal was found by Cheapflights users on 7/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/146:01 am
STL
- SGN
2 stops30h 14m
United Airlines
Thu 7/237:00 am
SGN
- STL
2 stops28h 44m
United Airlines
Deal found 7/11![United Airlines logo]()
$1,234
This United Airlines deal was found by Cheapflights users on 7/9. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/166:30 pm
STL
- SGN
3 stops39h 35m
United Airlines
Fri 8/77:00 am
SGN
- STL
3 stops39h 07m
United Airlines
Deal found 7/9![United Airlines logo]()
$1,228
This United Airlines deal was found by Cheapflights users on 7/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/196:14 am
STL
- SGN
2 stops30h 01m
United Airlines
Sun 8/1611:15 pm
SGN
- STL
2 stops34h 45m
United Airlines
Deal found 7/11![United Airlines logo]()
$1,150
This KAYAK deal was found by Cheapflights users on 7/11. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/196:14 am
STL
- SGN
2 stops30h 01m
ANA
Sun 8/1611:15 pm
SGN
- STL
2 stops31h 24m
ANA
Deal found 7/11![ANA logo]()
$1,199
This oojo deal was found by Cheapflights users on 7/9. 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.
Sat 8/17:56 pm
STL
- DAD
2 stops33h 39m
STARLUX Airlines
Mon 8/316:45 pm
DAD
- STL
2 stops55h 21m
STARLUX Airlines
Deal found 7/9![STARLUX Airlines logo]()
$1,581
This Air Canada deal was found by Cheapflights users on 7/9. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/88:55 am
STL
- DAD
2 stops27h 35m
Multiple Airlines
Thu 8/131:30 am
DAD
- STL
2 stops48h 34m
Multiple Airlines
Deal found 7/9![Multiple Airlines logo]()
$1,385
This United Airlines deal was found by Cheapflights users on 7/12. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/116:15 am
STL
- SGN
3 stops27h 50m
United Airlines
Tue 8/187:00 am
SGN
- STL
3 stops39h 10m
United Airlines
Deal found 7/12![United Airlines logo]()
$1,178
This Delta deal was found by Cheapflights users on 7/11. 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.
Mon 8/246:00 am
STL
- DAD
2 stops27h 05m
Delta
Mon 8/3110:55 pm
DAD
- STL
2 stops34h 05m
Delta
Deal found 7/11![Delta logo]()
$1,240
This Air Canada deal was found by Cheapflights users on 7/9. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/2412:10 pm
STL
- DAD
2 stops48h 20m
Multiple Airlines
Sun 8/301:30 am
DAD
- STL
2 stops48h 32m
Multiple Airlines
Deal found 7/9![Multiple Airlines logo]()
$1,286
One-way flights from St. Louis to VietnamSearch for one-way flight options from St. Louis to Vietnam. Find affordable one-way fares based on user searches. Data last updated July 12, 2026.
Search for one-way flight options from St. Louis to Vietnam. Find affordable one-way fares based on user searches. Data last updated July 12, 2026.
This oojo deal was found by Cheapflights users on 7/9. 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.
Fri 10/97:00 am
STL
- HAN
2 stops27h 00m
Multiple Airlines
Deal found 7/9![Multiple Airlines logo]()
$546
This oojo deal was found by Cheapflights users on 7/10. 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.
Fri 9/186:29 am
STL
- SGN
2 stops28h 21m
Multiple Airlines
Deal found 7/10![Multiple Airlines logo]()
$546
This Kiwi.com deal was found by Cheapflights users on 7/8. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/58:08 pm
STL
- SGN
3 stops48h 22m
Multiple Airlines
Deal found 7/8![Multiple Airlines logo]()
$554
This Kiwi.com deal was found by Cheapflights users on 7/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/148:10 pm
STL
- SGN
3 stops48h 20m
Multiple Airlines
Deal found 7/10![Multiple Airlines logo]()
$562
This FlightHub deal was found by Cheapflights users on 7/10. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/156:29 am
STL
- HAN
2 stops36h 46m
Qatar Airways
Deal found 7/10![Qatar Airways logo]()
$566
This Kiwi.com deal was found by Cheapflights users on 7/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/1510:35 am
STL
- HAN
3 stops40h 05m
Multiple Airlines
Deal found 7/10![Multiple Airlines logo]()
$581
This Kiwi.com deal was found by Cheapflights users on 7/8. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/97:10 pm
STL
- SGN
3 stops49h 20m
Multiple Airlines
Deal found 7/8![Multiple Airlines logo]()
$587
This Kiwi.com deal was found by Cheapflights users on 7/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/1510:35 am
STL
- SGN
3 stops36h 50m
Multiple Airlines
Deal found 7/10![Multiple Airlines logo]()
$588
This Kiwi.com deal was found by Cheapflights users on 7/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/1212:46 pm
STL
- SGN
3 stops55h 44m
Multiple Airlines
Deal found 7/10![Multiple Airlines logo]()
$594
This Kiwi.com deal was found by Cheapflights users on 7/8. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/48:08 pm
STL
- SGN
3 stops54h 17m
Multiple Airlines
Deal found 7/8![Multiple Airlines logo]()
$596
This Kiwi.com deal was found by Cheapflights users on 7/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/1312:46 pm
STL
- HAN
3 stops37h 54m
Multiple Airlines
Deal found 7/10![Multiple Airlines logo]()
$598
This oojo deal was found by Cheapflights users on 7/8. 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.
Fri 10/97:00 am
STL
- HAN
2 stops36h 15m
Qatar Airways
Deal found 7/8![Qatar Airways logo]()
$599
Find 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 July 12, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $1,086 (FlightHub) |
One-way from | $546 (oojo) |
Popular in | July |
Cheapest in | November |
Average price | $1,466 |
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 July 12, 2026.
Use the filters below to find and compare flights from St. Louis to Vietnam that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
St. LouisHo Chi Minh City
STL - SGN
STLSGN
Lambert-St Louis
Wed 9/16
6:29 am-1:50 pm
2 stops43h 21m
Ho Chi Minh City
Wed 10/7
8:00 pm-11:59 pm
2 stops39h 59m
$1,086
St. LouisHanoi
STL - HAN
STLHAN
Lambert-St Louis
Mon 11/9
3:11 pm-6:55 am
2 stops50h 44m
Hanoi Noibai
Mon 11/16
7:10 pm-2:15 pm
2 stops56h 05m
$1,128
St. LouisHo Chi Minh City
STL - SGN
STLSGN
Lambert-St Louis
Wed 11/18
6:45 am-12:50 pm
2 stops41h 05m
Ho Chi Minh City
Fri 12/4
2:05 pm-1:20 pm
2 stops36h 15m
$1,140
St. LouisHo Chi Minh City
STL - SGN
STLSGN
Lambert-St Louis
Sun 10/25
5:00 am-9:50 pm
2 stops52h 50m
Ho Chi Minh City
Sat 10/31
11:05 pm-10:13 pm
2 stops35h 08m
$1,147
Quickest round-trip
St. LouisHo Chi Minh City
STL - SGN
STLSGN
Lambert-St Louis
Tue 9/8
6:15 am-10:05 pm
3 stops27h 50m
Ho Chi Minh City
Mon 10/12
7:00 am-4:37 pm
2 stops21h 37m
$1,148
St. LouisHo Chi Minh City
STL - SGN
STLSGN
Lambert-St Louis
Mon 9/7
6:15 am-10:05 pm
3 stops27h 50m
Ho Chi Minh City
Mon 10/12
11:15 pm-6:16 pm
2 stops31h 01m
$1,151
St. LouisHo Chi Minh City
STL - SGN
STLSGN
Lambert-St Louis
Wed 9/9
6:15 am-10:05 pm
3 stops27h 50m
Ho Chi Minh City
Wed 9/30
11:15 pm-6:43 pm
2 stops31h 28m
$1,151
St. LouisHo Chi Minh City
STL - SGN
STLSGN
Lambert-St Louis
Sat 9/5
6:15 am-10:05 pm
3 stops27h 50m
Ho Chi Minh City
Sat 10/3
11:15 pm-6:16 pm
2 stops31h 01m
$1,151
St. LouisHo Chi Minh City
STL - SGN
STLSGN
Lambert-St Louis
Mon 9/7
6:00 am-10:05 pm
3 stops28h 05m
Ho Chi Minh City
Mon 9/21
11:15 pm-6:31 pm
2 stops31h 16m
$1,151
St. LouisHanoi
STL - HAN
STLHAN
Lambert-St Louis
Fri 1/8
3:24 pm-6:55 am
2 stops50h 31m
Hanoi Noibai
Sun 1/24
7:10 pm-2:26 pm
2 stops56h 16m
$1,166
Showing 1-10 of 39 resultsSorted by cheapest first
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.
STL-SGN
STL-HAN
STL-DAD
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
STL-VN0
STL-SGN
STL-HAN
STL-DAD
What is the cheapest month to book a flight from St. Louis to Vietnam?
Currently, July is the cheapest month in which you can book a flight from St. Louis to Vietnam (average of $561). Flying from St. Louis to Vietnam in December is currently the most expensive (average of $984). 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.
How far ahead should I book a flight from St. Louis to Vietnam?
Booking 86 days in advance of your planned departure date is, on average, the best time to get cheap flights from St. Louis to Vietnam. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
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 July 12, 2026.
Read through reviews of airlines operating flights from St. Louis to Vietnam, such as Japan Airlines,ANA, andDelta. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Boarding
8.4
Overall
8.3
Comfort
8.2
Entertainment
7.8
Food
7.7
Crew
8.7
Reviews
1 / 20
10.0
ExcellentAnonymous,Sep 2025
HNL - KIX
Boarding
8.4
Overall
8.3
Comfort
8.2
Entertainment
7.8
Food
7.7
Crew
8.7
Reviews
1 / 20
10.0
ExcellentAnonymous,Sep 2025
HNL - KIX
Boarding
8.4
Overall
8.3
Comfort
8.2
Entertainment
7.8
Food
7.7
Crew
8.7
Reviews
1 / 20
10.0
ExcellentAnonymous,Sep 2025
HNL - KIX
Boarding
8.4
Overall
8.3
Comfort
8.2
Entertainment
7.8
Food
7.7
Crew
8.7
Reviews
1 / 20
10.0
ExcellentAnonymous,Sep 2025
HNL - KIX
Boarding
8.4
Overall
8.3
Comfort
8.2
Entertainment
7.8
Food
7.7
Crew
8.7
Reviews
1 / 20
10.0
ExcellentAnonymous,Sep 2025
HNL - KIX
Boarding
8.4
Overall
8.3
Comfort
8.2
Entertainment
7.8
Food
7.7
Crew
8.7
Reviews
1 / 20
10.0
ExcellentAnonymous,Sep 2025
HNL - KIX
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.
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Alternative routes for St. Louis to Vietnam
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Complete your trip
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St. Louis and Vietnam flights
Browse other St. Louis and Vietnam flight options. Last updated on July 12, 2026.
Popular flight searches
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Fly to Vietnam regions
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Top 6 airlines flying from St. Louis to Vietnam
Discover the top 6 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 July 12, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$878 | Average$1,194 | FlexibilityNo cancel fee | On-time72% | |
| Cheapest$903 | Average$1,079 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$942 | Average$1,070 | FlexibilityNo cancel fee | On-time79% | |
| Cheapest$943 | Average$1,136 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$986 | Average$1,159 | FlexibilityNo cancel fee | On-time80% | |
| Cheapest$1,110 | Average$1,639 | FlexibilityNo cancel fee | On-timeN/A |