$407+ Cheap flights from St. Louis (STL) to Southeast Asia
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 4/18. Fares are subject to change and may not be available on all flights or dates of travel.
STL — BKK
Mar 15 — Mar 221
1 adult, Economy
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Find cheap flights from St. Louis to Southeast Asia with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
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 Southeast Asia
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Cheapest flights from St. Louis to Southeast AsiaExplore the most affordable flight options available from St. Louis to Southeast Asia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 13, 2026.
Explore the most affordable flight options available from St. Louis to Southeast Asia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 13, 2026.
This FlightHub deal was found by Cheapflights users on 2/11. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/39:23 am
STL
- SGN
2 stops26h 52m
ANA
Mon 9/1411:15 pm
SGN
- STL
2 stops27h 04m
ANA
Deal found 2/11![ANA logo]()
$818
This United Airlines deal was found by Cheapflights users on 2/10. 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 4/228:30 am
STL
- CEB
2 stops24h 35m
United Airlines
Thu 5/219:15 am
CEB
- STL
2 stops21h 38m
United Airlines
Deal found 2/10![United Airlines logo]()
$819
This United Airlines deal was found by Cheapflights users on 2/11. 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.
Mon 8/38:15 pm
STL
- SGN
3 stops37h 50m
United Airlines
Mon 9/1411:15 pm
SGN
- STL
2 stops30h 38m
United Airlines
Deal found 2/11![United Airlines logo]()
$821
This United Airlines deal was found by Cheapflights users on 2/10. 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.
Mon 8/176:15 am
STL
- SGN
2 stops27h 40m
United Airlines
Mon 8/3111:15 pm
SGN
- STL
2 stops46h 33m
United Airlines
Deal found 2/10![United Airlines logo]()
$823
This United Airlines deal was found by Cheapflights users on 2/11. 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.
Mon 4/208:54 am
STL
- CEB
2 stops24h 11m
United Airlines
Wed 5/209:15 am
CEB
- STL
3 stops24h 28m
United Airlines
Deal found 2/11![United Airlines logo]()
$823
This United Airlines deal was found by Cheapflights users on 2/9. 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.
Sun 9/275:18 pm
STL
- SGN
3 stops40h 47m
United Airlines
Thu 10/17:00 am
SGN
- STL
2 stops28h 43m
United Airlines
Deal found 2/9![United Airlines logo]()
$824
This United Airlines deal was found by Cheapflights users on 2/11. 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 4/510:00 am
STL
- SGN
3 stops48h 05m
United Airlines
Wed 5/67:00 am
SGN
- STL
3 stops26h 52m
United Airlines
Deal found 2/11![United Airlines logo]()
$832
This United Airlines deal was found by Cheapflights users on 2/12. 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.
Mon 4/276:00 am
STL
- CEB
2 stops27h 05m
United Airlines
Wed 5/279:15 am
CEB
- STL
2 stops45h 38m
United Airlines
Deal found 2/12![United Airlines logo]()
$833
This United Airlines deal was found by Cheapflights users on 2/9. 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.
Sun 4/194:49 pm
STL
- SGN
2 stops43h 26m
United Airlines
Thu 4/237:00 am
SGN
- STL
3 stops37h 35m
United Airlines
Deal found 2/9![United Airlines logo]()
$842
This Mytrip deal was found by Cheapflights users on 2/10. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/196:15 am
STL
- SGN
2 stops27h 40m
ANA
Mon 10/2611:05 pm
SGN
- STL
2 stops49h 15m
ANA
Deal found 2/10![ANA logo]()
$855
This FlightHub deal was found by Cheapflights users on 2/11. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/58:21 am
STL
- SGN
2 stops27h 54m
ANA
Wed 5/611:15 pm
SGN
- STL
2 stops33h 53m
ANA
Deal found 2/11![ANA logo]()
$858
This United Airlines deal was found by Cheapflights users on 2/12. 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.
Sun 9/278:15 pm
STL
- SGN
2 stops37h 40m
United Airlines
Sat 10/317:30 am
SGN
- STL
2 stops22h 23m
United Airlines
Deal found 2/12![United Airlines logo]()
$866
Best flights from St. Louis to Southeast AsiaDiscover carefully curated flight deals from St. Louis to Southeast Asia that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated February 13, 2026.
Discover carefully curated flight deals from St. Louis to Southeast Asia that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated February 13, 2026.
This United Airlines deal was found by Cheapflights users on 2/10. 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 4/226:00 am
STL
- CEB
2 stops27h 05m
United Airlines
Thu 5/219:15 am
CEB
- STL
3 stops24h 56m
United Airlines
Deal found 2/10![United Airlines logo]()
$823
This FlightHub deal was found by Cheapflights users on 2/11. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/58:21 am
STL
- SGN
2 stops27h 54m
ANA
Wed 5/611:15 pm
SGN
- STL
2 stops33h 53m
ANA
Deal found 2/11![ANA logo]()
$858
This oojo deal was found by Cheapflights users on 2/12. 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.
Tue 4/213:50 pm
STL
- MNL
2 stops28h 40m
STARLUX Airlines
Tue 7/2110:45 am
MNL
- STL
2 stops40h 17m
STARLUX Airlines
Deal found 2/12![STARLUX Airlines logo]()
$926
This Delta deal was found by Cheapflights users on 2/12. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/25:50 pm
STL
- BKK
2 stops41h 55m
Delta
Mon 3/99:30 pm
BKK
- STL
2 stops38h 28m
Delta
Deal found 2/12![Delta logo]()
$938
This oojo deal was found by Cheapflights users on 2/13. 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.
Mon 4/137:00 am
STL
- BKK
2 stops38h 45m
China Airlines
Mon 4/2010:50 am
BKK
- STL
2 stops49h 09m
China Airlines
Deal found 2/13![China Airlines logo]()
$967
This oojo deal was found by Cheapflights users on 2/12. 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.
Wed 4/13:50 pm
STL
- MNL
2 stops42h 00m
EVA Air
Thu 4/165:45 am
MNL
- STL
2 stops55h 14m
EVA Air
Deal found 2/12![EVA Air logo]()
$968
This China Airlines deal was found by Cheapflights users on 2/11. 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 China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/137:00 am
STL
- BKK
2 stops38h 45m
Multiple Airlines
Mon 4/2010:50 am
BKK
- STL
2 stops40h 01m
Multiple Airlines
Deal found 2/11![Multiple Airlines logo]()
$970
This Gurufare deal was found by Cheapflights users on 2/12. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/166:21 am
STL
- MNL
1 stop22h 39m
Philippine Airlines
Thu 4/2310:15 pm
MNL
- STL
2 stops23h 15m
Philippine Airlines
Deal found 2/12![Philippine Airlines logo]()
$982
This HIS deal was found by Cheapflights users on 2/11. 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 HIS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/296:50 pm
STL
- BKK
2 stops27h 10m
Cathay Pacific
Sun 4/53:00 pm
BKK
- STL
2 stops38h 53m
Cathay Pacific
Deal found 2/11![Cathay Pacific logo]()
$989
This Air Canada deal was found by Cheapflights users on 2/10. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/157:30 am
STL
- SIN
2 stops32h 45m
Air Canada
Thu 5/217:00 am
SIN
- STL
2 stops26h 05m
Air Canada
Deal found 2/10![Air Canada logo]()
$1,144
This FlightHub deal was found by Cheapflights users on 2/9. 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.
Sat 5/22:33 pm
STL
- DPS
2 stops38h 02m
Qatar Airways
Sun 5/1012:15 am
DPS
- STL
2 stops36h 41m
Qatar Airways
Deal found 2/9![Qatar Airways logo]()
$1,212
This United Airlines deal was found by Cheapflights users on 2/9. 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.
Sun 4/196:35 pm
STL
- SGN
3 stops39h 30m
United Airlines
Thu 4/237:00 am
SGN
- STL
3 stops37h 35m
United Airlines
Deal found 2/9![United Airlines logo]()
$832
This United Airlines deal was found by Cheapflights users on 2/12. 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.
Mon 4/278:54 am
STL
- CEB
2 stops24h 11m
United Airlines
Wed 5/279:15 am
CEB
- STL
2 stops45h 38m
United Airlines
Deal found 2/12![United Airlines logo]()
$833
This Etihad Airways deal was found by Cheapflights users on 2/12. 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 Etihad Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/26:05 am
STL
- BKK
2 stops29h 45m
Multiple Airlines
Sun 5/103:05 pm
BKK
- STL
2 stops40h 25m
Multiple Airlines
Deal found 2/12![Multiple Airlines logo]()
$976
This oojo deal was found by Cheapflights users on 2/11. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/16:50 pm
STL
- BKK
2 stops35h 10m
Cathay Pacific
Thu 4/307:35 am
BKK
- STL
2 stops27h 24m
Cathay Pacific
Deal found 2/11![Cathay Pacific logo]()
$1,006
This oojo deal was found by Cheapflights users on 2/12. 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.
Wed 4/16:38 am
STL
- MNL
1 stop22h 22m
Philippine Airlines
Thu 4/1611:05 am
MNL
- STL
1 stop25h 52m
Philippine Airlines
Deal found 2/12![Philippine Airlines logo]()
$1,007
This oojo deal was found by Cheapflights users on 2/10. 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.
Tue 5/54:46 pm
STL
- CNX
2 stops29h 34m
China Airlines
Thu 5/1411:20 am
CNX
- STL
2 stops43h 40m
China Airlines
Deal found 2/10![China Airlines logo]()
$1,043
This United Airlines deal was found by Cheapflights users on 2/9. 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 4/214:49 pm
STL
- CEB
3 stops40h 16m
United Airlines
Thu 5/219:15 am
CEB
- STL
3 stops24h 56m
United Airlines
Deal found 2/9![United Airlines logo]()
$873
This oojo deal was found by Cheapflights users on 2/12. 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.
Wed 4/812:27 pm
STL
- MNL
2 stops28h 03m
Philippine Airlines
Wed 4/1511:05 am
MNL
- STL
1 stop25h 52m
Philippine Airlines
Deal found 2/12![Philippine Airlines logo]()
$1,009
This SmartFares deal was found by Cheapflights users on 2/12. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/54:46 pm
STL
- CNX
2 stops29h 34m
Multiple Airlines
Thu 5/1411:20 am
CNX
- STL
2 stops43h 40m
Multiple Airlines
Deal found 2/12![Multiple Airlines logo]()
$1,010
This KAYAK deal was found by Cheapflights users on 2/12. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/46:11 pm
STL
- SIN
2 stops41h 34m
Cathay Pacific
Sat 5/98:05 pm
SIN
- STL
2 stops39h 54m
Cathay Pacific
Deal found 2/12![Cathay Pacific logo]()
$1,032
This oojo deal was found by Cheapflights users on 2/11. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/97:00 am
STL
- DPS
2 stops43h 30m
EVA Air
Tue 3/244:40 pm
DPS
- STL
2 stops44h 19m
EVA Air
Deal found 2/11![EVA Air logo]()
$1,153
This oojo deal was found by Cheapflights users on 2/11. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/213:50 pm
STL
- DPS
2 stops33h 50m
China Airlines
Tue 4/283:55 pm
DPS
- STL
2 stops45h 04m
China Airlines
Deal found 2/11![China Airlines logo]()
$1,050
This Delta deal was found by Cheapflights users on 2/9. 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 4/16:32 am
STL
- HKT
2 stops27h 38m
Delta
Thu 4/3011:25 pm
HKT
- STL
2 stops37h 00m
Delta
Deal found 2/9![Delta logo]()
$1,170
This United Airlines deal was found by Cheapflights users on 2/11. 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 4/58:30 am
STL
- SGN
2 stops25h 35m
United Airlines
Wed 5/67:00 am
SGN
- STL
3 stops26h 08m
United Airlines
Deal found 2/11![United Airlines logo]()
$881
This Philippine Airlines deal was found by Cheapflights users on 2/12. 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 Philippine Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/146:21 am
STL
- MNL
1 stop22h 39m
Multiple Airlines
Tue 5/510:15 pm
MNL
- STL
2 stops29h 35m
Multiple Airlines
Deal found 2/12![Multiple Airlines logo]()
$1,013
This oojo deal was found by Cheapflights users on 2/10. 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.
Thu 2/1910:37 am
STL
- HKT
2 stops43h 18m
Qatar Airways
Mon 3/28:20 am
HKT
- STL
2 stops48h 09m
Qatar Airways
Deal found 2/10![Qatar Airways logo]()
$1,263
This United Airlines deal was found by Cheapflights users on 2/11. 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.
Wed 5/62:35 pm
STL
- SGN
3 stops43h 30m
United Airlines
Wed 7/111:15 pm
SGN
- STL
2 stops36h 12m
United Airlines
Deal found 2/11![United Airlines logo]()
$884
This Justfly.com deal was found by Cheapflights users on 2/12. 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.
Tue 5/56:21 am
STL
- SIN
2 stops34h 09m
Cathay Pacific
Sat 5/98:05 pm
SIN
- STL
2 stops39h 54m
Cathay Pacific
Deal found 2/12![Cathay Pacific logo]()
$1,093
This Philippine Airlines deal was found by Cheapflights users on 2/11. 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 Philippine Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/226:21 am
STL
- MNL
1 stop22h 39m
Multiple Airlines
Sun 5/1010:15 pm
MNL
- STL
1 stop25h 20m
Multiple Airlines
Deal found 2/11![Multiple Airlines logo]()
$1,014
Last-minute flights from St. Louis to Southeast AsiaDiscover last-minute flight deals from St. Louis to Southeast Asia. Data last updated February 13, 2026 and is based on user searches.
Discover last-minute flight deals from St. Louis to Southeast Asia. Data last updated February 13, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 2/12. 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.
Mon 2/162:45 pm
STL
- BKK
3 stops31h 40m
United Airlines
Thu 3/54:55 pm
BKK
- STL
3 stops37h 49m
United Airlines
Deal found 2/12![United Airlines logo]()
$952
This Delta deal was found by Cheapflights users on 2/12. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/176:10 am
STL
- BKK
2 stops29h 35m
Delta
Wed 3/42:05 am
BKK
- STL
2 stops34h 18m
Delta
Deal found 2/12![Delta logo]()
$932
This oojo deal was found by Cheapflights users on 2/11. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/208:00 am
STL
- BKK
2 stops27h 15m
Cathay Pacific
Mon 3/912:45 pm
BKK
- STL
2 stops47h 13m
Cathay Pacific
Deal found 2/11![Cathay Pacific logo]()
$951
This SmartFares deal was found by Cheapflights users on 2/9. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/17:00 am
STL
- BKK
2 stops40h 35m
Multiple Airlines
Thu 3/125:40 pm
BKK
- STL
2 stops42h 19m
Multiple Airlines
Deal found 2/9![Multiple Airlines logo]()
$945
This oojo deal was found by Cheapflights users on 2/11. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/17:00 am
STL
- CEB
2 stops45h 35m
STARLUX Airlines
Tue 3/107:35 pm
CEB
- STL
2 stops55h 16m
STARLUX Airlines
Deal found 2/11![STARLUX Airlines logo]()
$945
This United Airlines deal was found by Cheapflights users on 2/11. 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 3/17:41 am
STL
- CEB
3 stops48h 29m
United Airlines
Tue 3/109:30 am
CEB
- STL
3 stops39h 57m
United Airlines
Deal found 2/11![United Airlines logo]()
$952
This Delta deal was found by Cheapflights users on 2/12. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/25:50 pm
STL
- BKK
2 stops41h 55m
Delta
Mon 3/99:30 pm
BKK
- STL
2 stops38h 28m
Delta
Deal found 2/12![Delta logo]()
$938
This oojo deal was found by Cheapflights users on 2/10. 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.
Mon 3/22:47 pm
STL
- BKK
2 stops32h 48m
STARLUX Airlines
Mon 3/95:40 pm
BKK
- STL
2 stops56h 11m
STARLUX Airlines
Deal found 2/10![STARLUX Airlines logo]()
$946
This oojo deal was found by Cheapflights users on 2/11. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/117:00 am
STL
- BKK
2 stops47h 15m
Cathay Pacific
Wed 3/1811:40 am
BKK
- STL
2 stops23h 18m
Cathay Pacific
Deal found 2/11![Cathay Pacific logo]()
$907
This oojo deal was found by Cheapflights users on 2/11. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/116:50 pm
STL
- CEB
2 stops34h 35m
Cathay Pacific
Tue 3/2412:30 pm
CEB
- STL
2 stops48h 28m
Cathay Pacific
Deal found 2/11![Cathay Pacific logo]()
$914
This Etihad Airways deal was found by Cheapflights users on 2/9. 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 Etihad Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/229:15 am
STL
- BKK
2 stops33h 55m
Multiple Airlines
Sun 9/203:05 pm
BKK
- STL
2 stops36h 22m
Multiple Airlines
Deal found 2/9![Multiple Airlines logo]()
$955
This oojo deal was found by Cheapflights users on 2/11. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/236:50 pm
STL
- MNL
2 stops25h 50m
Cathay Pacific
Tue 3/318:20 pm
MNL
- STL
2 stops40h 38m
Cathay Pacific
Deal found 2/11![Cathay Pacific logo]()
$913
One-way flights from St. Louis to Southeast AsiaSearch for one-way flight options from St. Louis to Southeast Asia. Find affordable one-way fares based on user searches. Data last updated February 13, 2026.
Search for one-way flight options from St. Louis to Southeast Asia. Find affordable one-way fares based on user searches. Data last updated February 13, 2026.
This Kiwi.com deal was found by Cheapflights users on 2/11. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/188:12 pm
STL
- BKK
3 stops50h 28m
Multiple Airlines
Deal found 2/11![Multiple Airlines logo]()
$407
This oojo deal was found by Cheapflights users on 2/10. 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.
Sun 3/17:00 am
STL
- BKK
2 stops40h 00m
Philippine Airlines
Deal found 2/10![Philippine Airlines logo]()
$416
This oojo deal was found by Cheapflights users on 2/12. 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.
Sun 2/157:00 am
STL
- SGN
2 stops36h 25m
Philippine Airlines
Deal found 2/12![Philippine Airlines logo]()
$416
This United Airlines deal was found by Cheapflights users on 2/10. 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 2/156:55 pm
STL
- SGN
3 stops39h 00m
United Airlines
Deal found 2/10![United Airlines logo]()
$423
This United Airlines deal was found by Cheapflights users on 2/10. 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.
Mon 2/169:55 am
STL
- SGN
2 stops46h 55m
United Airlines
Deal found 2/10![United Airlines logo]()
$424
This Kiwi.com deal was found by Cheapflights users on 2/12. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/118:16 pm
STL
- MNL
3 stops37h 39m
Multiple Airlines
Deal found 2/12![Multiple Airlines logo]()
$424
This Kiwi.com deal was found by Cheapflights users on 2/10. 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 3/912:14 pm
STL
- BKK
3 stops45h 11m
Multiple Airlines
Deal found 2/10![Multiple Airlines logo]()
$426
This FlightHub deal was found by Cheapflights users on 2/10. 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.
Mon 2/167:41 am
STL
- SGN
2 stops27h 34m
ANA
Deal found 2/10![ANA logo]()
$426
This KAYAK deal was found by Cheapflights users on 2/11. 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 3/17:00 am
STL
- BKK
2 stops40h 00m
Multiple Airlines
Deal found 2/11![Multiple Airlines logo]()
$432
This KAYAK deal was found by Cheapflights users on 2/12. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/157:00 am
STL
- SGN
2 stops36h 25m
Multiple Airlines
Deal found 2/12![Multiple Airlines logo]()
$432
This Kiwi.com deal was found by Cheapflights users on 2/11. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/138:16 pm
STL
- BKK
3 stops51h 54m
Multiple Airlines
Deal found 2/11![Multiple Airlines logo]()
$436
This Kiwi.com deal was found by Cheapflights users on 2/10. 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 4/74:54 pm
STL
- SGN
3 stops54h 11m
Multiple Airlines
Deal found 2/10![Multiple Airlines logo]()
$437
Find flight deals from St. Louis to Southeast Asia
Keep the following information in mind while searching for St. Louis to Southeast Asia flight deals. Data was last updated February 13, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $819 (United Airlines) |
One-way from | $407 (Kiwi.com) |
Popular in | December |
Cheapest in | October |
Average price | $1,278 |
Cheapflights Fare Finder
Customize your flight search to find flights from St. Louis to Southeast Asia 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 February 13, 2026.
Use the filters below to find and compare flights from St. Louis to Southeast Asia that are best for you.
Fly from
St. Louis
Fly to
Southeast Asia
Route
Depart
Return
Price
St. LouisCebu City
STL - CEB
STLCEB
Lambert-St Louis
Wed 4/22
6:00 am-10:05 pm
2 stops27h 05m
Cebu City Mactan Intl
Thu 5/21
9:15 am-9:11 pm
3 stops24h 56m
$823
St. LouisHo Chi Minh City
STL - SGN
STLSGN
Lambert-St Louis
Sun 4/19
6:35 pm-10:05 pm
3 stops39h 30m
Ho Chi Minh City
Thu 4/23
7:00 am-8:35 am
3 stops37h 35m
$832
St. LouisCebu City
STL - CEB
STLCEB
Lambert-St Louis
Mon 4/27
8:54 am-10:05 pm
2 stops24h 11m
Cebu City Mactan Intl
Wed 5/27
9:15 am-5:53 pm
2 stops45h 38m
$833
St. LouisHo Chi Minh City
STL - SGN
STLSGN
Lambert-St Louis
Sun 4/5
8:21 am-12:15 am
2 stops27h 54m
Ho Chi Minh City
Wed 5/6
11:15 pm-9:08 pm
2 stops33h 53m
$858
St. LouisCebu City
STL - CEB
STLCEB
Lambert-St Louis
Tue 4/21
4:49 pm-10:05 pm
3 stops40h 16m
Cebu City Mactan Intl
Thu 5/21
9:15 am-9:11 pm
3 stops24h 56m
$873
St. LouisHo Chi Minh City
STL - SGN
STLSGN
Lambert-St Louis
Sun 4/5
8:30 am-10:05 pm
2 stops25h 35m
Ho Chi Minh City
Wed 5/6
7:00 am-9:08 pm
3 stops26h 08m
$881
St. LouisHo Chi Minh City
STL - SGN
STLSGN
Lambert-St Louis
Wed 5/6
2:35 pm-10:05 pm
3 stops43h 30m
Ho Chi Minh City
Wed 7/1
11:15 pm-11:27 pm
2 stops36h 12m
$884
St. LouisManila
STL - MNL
STLMNL
Lambert-St Louis
Tue 4/21
3:50 pm-9:30 am
2 stops28h 40m
Manila Ninoy Aquino Intl
Tue 7/21
10:45 am-2:02 pm
2 stops40h 17m
$926
St. LouisBangkok
STL - BKK
STLBKK
Lambert-St Louis
Mon 3/2
5:50 pm-12:45 am
2 stops41h 55m
Bangkok Suvarnabhumi
Mon 3/9
9:30 pm-11:58 pm
2 stops38h 28m
$938
St. LouisBangkok
STL - BKK
STLBKK
Lambert-St Louis
Mon 4/13
7:00 am-9:45 am
2 stops38h 45m
Bangkok Suvarnabhumi
Mon 4/20
10:50 am-11:59 pm
2 stops49h 09m
$967
Showing 1-10 of 60 results
Best time to book a flight from St. Louis to Southeast Asia
Have a flexible travel schedule? Discover the best time to fly to Southeast Asia from St. Louis with our price prediction graph.
STL-CEB
STL-SGN
STL-MNL
STL-BKK
STL-SIN
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 Southeast Asia
STL-zzYJX
STL-CEB
STL-SGN
STL-MNL
STL-BKK
What is the cheapest month to book a flight from St. Louis to Southeast Asia?
Currently, July is the cheapest month in which you can book a flight from St. Louis to Southeast Asia (average of $625). Flying from St. Louis to Southeast Asia in June is currently the most expensive (average of $1,227). 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.
Reviews of airlines servicing Southeast Asia
Get insights into the airlines that provide service to Southeast Asia. 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 Southeast Asia. Reviews last updated February 13, 2026.
Read through reviews of airlines operating flights from St. Louis to Southeast Asia, such as ANA, Japan Airlines, and Delta. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
7.9
Overall
8.4
Boarding
8.6
Comfort
8.2
Crew
8.7
Food
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,Feb 2026
BKK - NRT
Entertainment
7.9
Overall
8.4
Boarding
8.6
Comfort
8.2
Crew
8.7
Food
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,Feb 2026
BKK - NRT
Entertainment
7.9
Overall
8.4
Boarding
8.6
Comfort
8.2
Crew
8.7
Food
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,Feb 2026
BKK - NRT
Entertainment
7.9
Overall
8.4
Boarding
8.6
Comfort
8.2
Crew
8.7
Food
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,Feb 2026
BKK - NRT
Entertainment
7.9
Overall
8.4
Boarding
8.6
Comfort
8.2
Crew
8.7
Food
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,Feb 2026
BKK - NRT
Entertainment
7.9
Overall
8.4
Boarding
8.6
Comfort
8.2
Crew
8.7
Food
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,Feb 2026
BKK - NRT
Related info for your journey
Find useful and relevant information for your journey from St. Louis to Southeast Asia. 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 Southeast Asia
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Complete your trip
Complete your trip to Southeast Asia by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from St. Louis to Southeast Asia by cabin class
Find flights from St. Louis to Southeast Asia, based on your preferred cabin class, be it economy, premium economy, business, or first class.
St. Louis and Southeast Asia flights
Browse other St. Louis and Southeast Asia flight options. Last updated on February 13, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
St. Louis to Southeast Asia flights
Consider these flights traveling from St. Louis to Southeast Asia.
Top 10 airlines flying from St. Louis to Southeast Asia
Discover the top 10 airlines that operate flights from St. Louis to Southeast Asia. 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 February 13, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$881 | Average$1,457 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$903 | Average$994 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$907 | Average$1,432 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$915 | Average$1,281 | FlexibilityNo cancel fee | On-time72% | |
| Cheapest$923 | Average$1,310 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$946 | Average$1,126 | FlexibilityNo cancel fee | On-time79% | |
| Cheapest$954 | Average$1,219 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$985 | Average$1,146 | FlexibilityNo cancel fee | On-time80% | |
| Cheapest$1,008 | Average$1,362 | FlexibilityNo cancel fee | On-time74% | |
| Cheapest$1,017 | Average$1,372 | FlexibilityNo cancel fee | On-time68% |