$510+ Cheap flights from St. Louis (STL) to Suvarnabhumi (BKK)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/30. Fares are subject to change and may not be available on all flights or dates of travel.
STL — BKK
Oct 12 — Oct 191
Round-trip
1 adult, Economy
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Find cheap flights from St. Louis to Suvarnabhumi 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 Suvarnabhumi
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Best
Last-minute
One-way
Cheapest flights from St. Louis to SuvarnabhumiExplore the most affordable flight options available from St. Louis to Suvarnabhumi. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 12, 2026.
Explore the most affordable flight options available from St. Louis to Suvarnabhumi. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 12, 2026.
This Globehunters deal was found by Cheapflights users on 9/10. 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 Globehunters is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/287:02 am -
2 stops41h 33m
Sun 11/155:40 pm -
2 stops43h 19m
Deal found 9/10![Multiple Airlines logo]()
$1,028
This Globehunters deal was found by Cheapflights users on 9/10. 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 Globehunters is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/106:02 am -
2 stops41h 58m
Tue 11/101:45 pm -
2 stops37h 40m
Deal found 9/10![Multiple Airlines logo]()
$1,035
This Etihad Airways deal was found by Cheapflights users on 9/12. 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.
Sun 9/138:54 am -
2 stops28h 01m
Sat 9/263:15 am -
2 stops29h 29m
Deal found 9/12![Multiple Airlines logo]()
$1,036
This Etihad Airways deal was found by Cheapflights users on 9/10. 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 Etihad Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/227:27 am -
2 stops28h 28m
Wed 10/73:55 pm -
2 stops41h 02m
Deal found 9/10![Multiple Airlines logo]()
$1,038
This oojo deal was found by Cheapflights users on 9/9. 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.
Tue 9/2211:01 am -
2 stops31h 19m
Tue 10/62:30 am -
2 stops30h 27m
Deal found 9/9![Qatar Airways logo]()
$1,054
This Etihad Airways deal was found by Cheapflights users on 9/10. 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 Etihad Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/107:29 am -
2 stops40h 41m
Tue 10/203:55 pm -
2 stops35h 56m
Deal found 9/10![Multiple Airlines logo]()
$1,095
This Justfly.com deal was found by Cheapflights users on 9/9. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/107:36 pm -
2 stops33h 04m
Thu 9/171:10 pm -
2 stops41h 28m
Deal found 9/9![Multiple Airlines logo]()
$1,107
This oojo deal was found by Cheapflights users on 9/8. 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.
Tue 12/111:14 am -
2 stops40h 11m
Tue 12/89:50 am -
2 stops43h 53m
Deal found 9/8![Japan Airlines logo]()
$1,110
This oojo deal was found by Cheapflights users on 9/9. 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.
Wed 10/287:02 am -
2 stops41h 33m
Wed 11/115:40 pm -
2 stops43h 19m
Deal found 9/9![STARLUX Airlines logo]()
$1,111
This oojo deal was found by Cheapflights users on 9/9. 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.
Mon 10/511:31 am -
2 stops30h 14m
Wed 10/217:55 am -
2 stops28h 04m
Deal found 9/9![Japan Airlines logo]()
$1,112
This oojo deal was found by Cheapflights users on 9/7. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/234:42 pm -
2 stops31h 53m
Tue 11/31:45 pm -
2 stops37h 40m
Deal found 9/7![STARLUX Airlines logo]()
$1,113
Best flights from St. Louis to SuvarnabhumiDiscover carefully curated flight deals from St. Louis to Suvarnabhumi that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 12, 2026.
Discover carefully curated flight deals from St. Louis to Suvarnabhumi that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 12, 2026.
This Korean Air deal was found by Cheapflights users on 9/11. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/17:03 am -
2 stops27h 02m
Sun 12/2011:15 pm -
2 stops25h 37m
Deal found 9/11![Korean Air logo]()
$1,156
This United Airlines deal was found by Cheapflights users on 9/10. 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 2/109:22 am -
3 stops37h 08m
Mon 2/227:10 am -
2 stops27h 45m
Deal found 9/10![United Airlines logo]()
$1,161
This United Airlines deal was found by Cheapflights users on 9/8. 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.
Tue 9/223:32 pm -
3 stops30h 03m
Wed 10/77:00 am -
2 stops25h 16m
Deal found 9/8![United Airlines logo]()
$1,161
This United Airlines deal was found by Cheapflights users on 9/8. 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 11/21:08 pm -
3 stops33h 22m
Thu 11/127:10 am -
2 stops23h 55m
Deal found 9/8![United Airlines logo]()
$1,161
This United Airlines deal was found by Cheapflights users on 9/7. 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.
Mon 10/59:04 am -
2 stops31h 31m
Wed 10/143:45 pm -
3 stops32h 55m
Deal found 9/7![United Airlines logo]()
$1,165
This United Airlines deal was found by Cheapflights users on 9/7. 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.
Mon 10/56:15 am -
2 stops34h 20m
Thu 10/153:45 pm -
3 stops32h 55m
Deal found 9/7![United Airlines logo]()
$1,165
This United Airlines deal was found by Cheapflights users on 9/8. 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.
Tue 10/69:04 am -
2 stops31h 31m
Tue 10/133:45 pm -
3 stops31h 37m
Deal found 9/8![United Airlines logo]()
$1,169
This United Airlines deal was found by Cheapflights users on 9/10. 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 11/251:08 pm -
3 stops33h 22m
Wed 12/24:55 pm -
3 stops32h 48m
Deal found 9/10![United Airlines logo]()
$1,169
This United Airlines deal was found by Cheapflights users on 9/12. 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.
Fri 1/87:30 am -
2 stops27h 50m
Wed 1/137:10 am -
2 stops27h 43m
Deal found 9/12![United Airlines logo]()
$1,210
This United Airlines deal was found by Cheapflights users on 9/10. 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 9/271:29 pm -
3 stops32h 06m
Wed 9/303:45 pm -
3 stops30h 25m
Deal found 9/10![United Airlines logo]()
$1,219
Last-minute flights from St. Louis to SuvarnabhumiDiscover last-minute flight deals from St. Louis to Suvarnabhumi. Data last updated September 12, 2026 and is based on user searches.
Discover last-minute flight deals from St. Louis to Suvarnabhumi. Data last updated September 12, 2026 and is based on user searches.
This Etihad Airways deal was found by Cheapflights users on 9/12. 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.
Sun 9/138:54 am -
2 stops28h 01m
Sat 9/263:15 am -
2 stops29h 29m
Deal found 9/12![Multiple Airlines logo]()
$1,036
This Etihad Airways deal was found by Cheapflights users on 9/10. 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 Etihad Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/227:27 am -
2 stops28h 28m
Wed 10/73:55 pm -
2 stops41h 02m
Deal found 9/10![Multiple Airlines logo]()
$1,038
This oojo deal was found by Cheapflights users on 9/9. 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.
Tue 9/2211:01 am -
2 stops31h 19m
Tue 10/62:30 am -
2 stops30h 27m
Deal found 9/9![Qatar Airways logo]()
$1,054
This oojo deal was found by Cheapflights users on 9/9. 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.
Mon 10/511:31 am -
2 stops30h 14m
Wed 10/217:55 am -
2 stops28h 04m
Deal found 9/9![Japan Airlines logo]()
$1,112
This oojo deal was found by Cheapflights users on 9/9. 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.
Wed 10/711:31 am -
2 stops39h 39m
Wed 10/147:55 am -
2 stops27h 51m
Deal found 9/9![Japan Airlines logo]()
$1,114
This Globehunters deal was found by Cheapflights users on 9/10. 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 Globehunters is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/106:02 am -
2 stops41h 58m
Tue 11/101:45 pm -
2 stops37h 40m
Deal found 9/10![Multiple Airlines logo]()
$1,035
This Etihad Airways deal was found by Cheapflights users on 9/10. 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 Etihad Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/107:29 am -
2 stops40h 41m
Tue 10/203:55 pm -
2 stops35h 56m
Deal found 9/10![Multiple Airlines logo]()
$1,095
This oojo deal was found by Cheapflights users on 9/9. 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.
Tue 10/137:29 am -
2 stops27h 31m
Thu 10/227:55 am -
2 stops28h 04m
Deal found 9/9![Japan Airlines logo]()
$1,115
This oojo deal was found by Cheapflights users on 9/7. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/234:42 pm -
2 stops31h 53m
Tue 11/31:45 pm -
2 stops37h 40m
Deal found 9/7![STARLUX Airlines logo]()
$1,113
This Globehunters deal was found by Cheapflights users on 9/10. 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 Globehunters is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/287:02 am -
2 stops41h 33m
Sun 11/155:40 pm -
2 stops43h 19m
Deal found 9/10![Multiple Airlines logo]()
$1,028
This oojo deal was found by Cheapflights users on 9/9. 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.
Wed 10/287:02 am -
2 stops41h 33m
Wed 11/115:40 pm -
2 stops43h 19m
Deal found 9/9![STARLUX Airlines logo]()
$1,111
One-way flights from St. Louis to SuvarnabhumiSearch for one-way flight options from St. Louis to Suvarnabhumi. Find affordable one-way fares based on user searches. Data last updated September 12, 2026.
Search for one-way flight options from St. Louis to Suvarnabhumi. Find affordable one-way fares based on user searches. Data last updated September 12, 2026.
This Kiwi.com deal was found by Cheapflights users on 9/9. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/302:29 pm -
2 stops45h 26m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![Multiple Airlines logo]()
$510
This oojo deal was found by Cheapflights users on 9/11. 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 9/256:29 am -
2 stops29h 06m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/11![Multiple Airlines logo]()
$516
This Expedia deal was found by Cheapflights users on 9/10. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/256:00 am -
2 stops40h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/10![Multiple Airlines logo]()
$526
This Flightnetwork deal was found by Cheapflights users on 9/10. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/203:19 pm -
2 stops29h 36m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/10![Multiple Airlines logo]()
$536
This SmartFares deal was found by Cheapflights users on 9/11. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/17:00 am -
2 stops26h 50m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/11![Multiple Airlines logo]()
$555
This Kiwi.com deal was found by Cheapflights users on 9/7. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/146:35 pm -
2 stops53h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/7![Multiple Airlines logo]()
$558
This Etihad Airways deal was found by Cheapflights users on 9/11. 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 Etihad Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/115:00 am -
2 stops30h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/11![Multiple Airlines logo]()
$565
This BusinessClass deal was found by Cheapflights users on 9/7. 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 BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/125:00 am -
2 stops30h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/7![Etihad Airways logo]()
$578
This KAYAK deal was found by Cheapflights users on 9/8. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/106:02 am -
2 stops29h 33m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/8![Multiple Airlines logo]()
$584
This China Airlines deal was found by Cheapflights users on 9/8. 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 China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/305:50 pm -
2 stops31h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/8![Multiple Airlines logo]()
$589
Find flight deals from St. Louis to Suvarnabhumi
Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to Suvarnabhumi (BKK). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated September 12, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $1,028 (Globehunters) |
One-way from | $510 (Kiwi.com) |
Popular in | December |
Cheapest in | August |
Average price | $1,365 |
Cheapflights Fare Finder
Customize your flight search to find flights from St. Louis to Suvarnabhumi 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 7,457,451 searches. Data last updated September 12, 2026.
Use the filters below to find and compare flights from St. Louis to Bangkok Suvarnabhumi Airport that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Quickest round-trip
St. LouisBangkok
STL Lambert-St Louis - BKK Bangkok Suvarnabhumi
STLBKK
Lambert-St Louis
Sun 11/1
7:00 am-10:50 pm
2 stops26h 50m
Bangkok Suvarnabhumi
Wed 12/31
12:00 am-11:00 am
Nonstop0h 00m
$555
St. LouisBangkok
STL Lambert-St Louis - BKK Bangkok Suvarnabhumi
STLBKK
Lambert-St Louis
Sun 10/11
5:00 am-11:55 pm
2 stops30h 55m
Bangkok Suvarnabhumi
Wed 12/31
12:00 am-11:00 am
Nonstop0h 00m
$565
St. LouisBangkok
STL Lambert-St Louis - BKK Bangkok Suvarnabhumi
STLBKK
Lambert-St Louis
Sat 2/6
7:25 am-6:15 am
2 stops33h 50m
Bangkok Suvarnabhumi
Wed 12/31
12:00 am-11:00 am
Nonstop0h 00m
$589
St. LouisBangkok
STL Lambert-St Louis - BKK Bangkok Suvarnabhumi
STLBKK
Lambert-St Louis
Sat 10/10
7:29 am-12:10 pm
2 stops40h 41m
Bangkok Suvarnabhumi
Wed 12/31
12:00 am-11:00 am
Nonstop0h 00m
$614
St. LouisBangkok
STL Lambert-St Louis - BKK Bangkok Suvarnabhumi
STLBKK
Lambert-St Louis
Tue 10/13
3:11 pm-9:35 am
3 stops30h 24m
Bangkok Suvarnabhumi
Wed 12/31
12:00 am-11:00 am
Nonstop0h 00m
$632
St. LouisBangkok
STL Lambert-St Louis - BKK Bangkok Suvarnabhumi
STLBKK
Lambert-St Louis
Wed 1/6
3:00 pm-11:30 am
3 stops31h 30m
Bangkok Suvarnabhumi
Wed 12/31
12:00 am-11:00 am
Nonstop0h 00m
$632
St. LouisBangkok
STL Lambert-St Louis - BKK Bangkok Suvarnabhumi
STLBKK
Lambert-St Louis
Thu 2/4
9:22 am-11:30 am
3 stops37h 08m
Bangkok Suvarnabhumi
Wed 12/31
12:00 am-11:00 am
Nonstop0h 00m
$638
St. LouisBangkok
STL Lambert-St Louis - BKK Bangkok Suvarnabhumi
STLBKK
Lambert-St Louis
Tue 12/1
7:03 am-11:05 pm
2 stops27h 02m
Bangkok Suvarnabhumi
Sun 12/20
11:15 pm-11:52 am
2 stops25h 37m
$1,156
St. LouisBangkok
STL Lambert-St Louis - BKK Bangkok Suvarnabhumi
STLBKK
Lambert-St Louis
Wed 2/10
9:22 am-11:30 am
3 stops37h 08m
Bangkok Suvarnabhumi
Mon 2/22
7:10 am-9:55 pm
2 stops27h 45m
$1,161
St. LouisBangkok
STL Lambert-St Louis - BKK Bangkok Suvarnabhumi
STLBKK
Lambert-St Louis
Tue 9/22
3:32 pm-9:35 am
3 stops30h 03m
Bangkok Suvarnabhumi
Wed 10/7
7:00 am-8:16 pm
2 stops25h 16m
$1,161
Showing 1-10 of 17 resultsSorted by cheapest first
Compare providers for flights from St. Louis to Suvarnabhumi
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from St. Louis to Suvarnabhumi in September.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on St. Louis-Bangkok Suvarnabhumi Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on St. Louis-Bangkok Suvarnabhumi Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from St. Louis-Bangkok Suvarnabhumi Airport flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on St. Louis-Bangkok Suvarnabhumi Airport flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for St. Louis-Bangkok Suvarnabhumi Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from St. Louis to Suvarnabhumi
Have a flexible travel schedule? Discover the best time to fly to Suvarnabhumi from St. Louis with our price prediction graph.
STL-BKK
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 Bangkok Suvarnabhumi Airport
How far ahead should I book a flight from St. Louis to Bangkok Suvarnabhumi Airport?
To ensure you get the cheapest price possible for a flight from St. Louis to Bangkok Suvarnabhumi Airport, you should look to book at least 9 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
What is the cheapest month to book a flight from St. Louis to Bangkok Suvarnabhumi Airport?
Currently, August is the cheapest month in which you can book a flight from St. Louis to Bangkok Suvarnabhumi Airport (average of $979). Flying from St. Louis to Bangkok Suvarnabhumi Airport in December is currently the most expensive (average of $1,804). 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 much does it cost to fly round-trip from St. Louis to Bangkok Suvarnabhumi Airport?
Airfare is below average for this route at the moment.
St. Louis to Bangkok Suvarnabhumi Airport flights typically cost between $1,115 and $1,434 in October.The cheapest round-trip price found within the last 5 days was $1,028 on Multiple Airlines (Oct 28-Nov 15).
Reviews of airlines servicing Suvarnabhumi
Get insights into the airlines that provide service to Suvarnabhumi. 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 Suvarnabhumi. Reviews last updated September 12, 2026.
Peruse reviews from past customers who have flown with Japan Airlines,Delta, andCathay Pacific from St. Louis to Bangkok Suvarnabhumi Airport to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Food
7.7
Overall
8.3
Crew
8.7
Entertainment
7.8
Comfort
8.2
Boarding
8.4
Reviews
1 / 20
4.0
OkayClark,Aug 2026
BDL - ORD
Food
7.7
Overall
8.3
Crew
8.7
Entertainment
7.8
Comfort
8.2
Boarding
8.4
Reviews
1 / 20
4.0
OkayClark,Aug 2026
BDL - ORD
Food
7.7
Overall
8.3
Crew
8.7
Entertainment
7.8
Comfort
8.2
Boarding
8.4
Reviews
1 / 20
4.0
OkayClark,Aug 2026
BDL - ORD
Food
7.7
Overall
8.3
Crew
8.7
Entertainment
7.8
Comfort
8.2
Boarding
8.4
Reviews
1 / 20
4.0
OkayClark,Aug 2026
BDL - ORD
Food
7.7
Overall
8.3
Crew
8.7
Entertainment
7.8
Comfort
8.2
Boarding
8.4
Reviews
1 / 20
4.0
OkayClark,Aug 2026
BDL - ORD
Food
7.7
Overall
8.3
Crew
8.7
Entertainment
7.8
Comfort
8.2
Boarding
8.4
Reviews
1 / 20
4.0
OkayClark,Aug 2026
BDL - ORD
Related info for your journey
Find useful and relevant information for your journey from St. Louis to Suvarnabhumi. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Bangkok Suvarnabhumi Airport?
Book flights to Bangkok Suvarnabhumi Airport if you plan to visit one of these locationsKo Samet
Chonburi
Cha-am
Sattahip
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St. Louis and Suvarnabhumi flights
Browse other St. Louis and Suvarnabhumi flight options. Last updated on September 12, 2026.
Other flights from St. Louis
Browse through other flights departing from St. Louis. Flights are based on user searches made on Cheapflights and were last updated on September 12, 2026.
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Other flights to Suvarnabhumi
Explore flights to Suvarnabhumi departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on September 12, 2026.
Top 8 airlines flying from St. Louis to Suvarnabhumi
Discover the top 8 airlines that operate flights from St. Louis to Suvarnabhumi. 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 7,457,451 searches. Data last updated September 12, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$881 | Average$1,260 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$929 | Average$1,017 | FlexibilityNo cancel fee | On-time79% | |
| Cheapest$946 | Average$1,226 | FlexibilityNo cancel fee | On-time68% | |
| Cheapest$948 | Average$1,196 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$974 | Average$1,386 | FlexibilityNo cancel fee | On-time72% | |
| Cheapest$982 | Average$1,282 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$1,007 | Average$1,411 | FlexibilityNo cancel fee | On-time80% | |
| Cheapest$1,048 | Average$1,456 | FlexibilityNo cancel fee | On-time74% |