$502+ Cheap flights from St. Louis (STL) to Suvarnabhumi (BKK)
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/14. Fares are subject to change and may not be available on all flights or dates of travel.
STL — BKK
Sep 17 — Sep 241
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
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Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from St. Louis to Suvarnabhumi
Cheapest
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 August 18, 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 August 18, 2026.
This flugladen.de deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure flugladen.de is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/1212:17 pm -
3 stops34h 23m
Fri 9/181:35 am -
3 stops50h 59m
Deal found 8/13![Multiple Airlines logo]()
$1,029
This eDestinos deal was found by Cheapflights users on 8/17. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/149:04 am -
2 stops31h 31m
Mon 10/2610:25 pm -
2 stops25h 45m
Deal found 8/17![ANA logo]()
$1,034
This Etihad Airways deal was found by Cheapflights users on 8/17. 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.
Thu 9/1011:01 am -
2 stops37h 09m
Wed 9/163:15 am -
2 stops33h 12m
Deal found 8/17![Multiple Airlines logo]()
$1,038
This Etihad Airways deal was found by Cheapflights users on 8/15. 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.
Mon 10/125:00 am -
2 stops30h 55m
Wed 10/213:55 pm -
2 stops32h 40m
Deal found 8/15![Multiple Airlines logo]()
$1,039
This Etihad Airways deal was found by Cheapflights users on 8/17. 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.
Wed 10/2810:00 am -
2 stops32h 35m
Wed 11/112:40 pm -
2 stops38h 15m
Deal found 8/17![Multiple Airlines logo]()
$1,098
This FlightHub deal was found by Cheapflights users on 8/17. 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 10/1211:31 am -
2 stops32h 04m
Wed 10/213:00 am -
2 stops29h 57m
Deal found 8/17![Qatar Airways logo]()
$1,100
This Trip.com deal was found by Cheapflights users on 8/15. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/1812:12 pm -
3 stops37h 23m
Sat 10/31:30 am -
3 stops51h 04m
Deal found 8/15![Multiple Airlines logo]()
$1,102
This oojo deal was found by Cheapflights users on 8/18. 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 11/11:20 pm -
2 stops45h 15m
Sun 11/89:55 am -
2 stops43h 48m
Deal found 8/18![Japan Airlines logo]()
$1,122
This Etihad Airways deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Etihad Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/19:50 am -
2 stops31h 45m
Sun 12/202:40 pm -
2 stops38h 12m
Deal found 8/14![Multiple Airlines logo]()
$1,124
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 August 18, 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 August 18, 2026.
This Etihad Airways deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Etihad Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/39:32 am -
2 stops26h 23m
Mon 9/149:00 pm -
2 stops39h 27m
Deal found 8/14![Multiple Airlines logo]()
$1,038
This Delta deal was found by Cheapflights users on 8/17. 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 11/166:40 am -
2 stops29h 05m
Sun 11/229:30 pm -
2 stops38h 53m
Deal found 8/17![Delta logo]()
$1,149
This Korean Air deal was found by Cheapflights users on 8/17. 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.
Thu 9/106:00 am -
2 stops29h 35m
Mon 9/149:40 pm -
2 stops27h 43m
Deal found 8/17![Korean Air logo]()
$1,154
This United Airlines deal was found by Cheapflights users on 8/17. 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 11/166:00 am -
2 stops34h 10m
Sun 11/224:55 pm -
3 stops38h 10m
Deal found 8/17![United Airlines logo]()
$1,173
This Etihad Airways deal was found by Cheapflights users on 8/15. 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 9/121:49 pm -
2 stops28h 56m
Fri 9/183:15 am -
2 stops33h 12m
Deal found 8/15![Multiple Airlines logo]()
$1,038
This Etihad Airways deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Etihad Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/118:54 am -
2 stops27h 01m
Fri 9/189:00 pm -
2 stops39h 27m
Deal found 8/14![Multiple Airlines logo]()
$1,038
This Delta deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/146:40 am -
2 stops29h 05m
Sun 11/2212:55 am -
2 stops25h 28m
Deal found 8/13![Delta logo]()
$1,199
This Etihad Airways deal was found by Cheapflights users on 8/17. 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.
Mon 1/116:52 am -
2 stops27h 28m
Wed 1/272:40 pm -
2 stops40h 54m
Deal found 8/17![Multiple Airlines logo]()
$1,084
This Etihad Airways deal was found by Cheapflights users on 8/15. 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.
Wed 10/2810:00 am -
2 stops32h 35m
Wed 11/112:40 pm -
2 stops38h 15m
Deal found 8/15![Multiple Airlines logo]()
$1,098
This China Airlines deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/186:25 am -
3 stops39h 20m
Sun 10/410:50 am -
2 stops25h 50m
Deal found 8/13![Multiple Airlines logo]()
$1,194
Last-minute flights from St. Louis to SuvarnabhumiDiscover last-minute flight deals from St. Louis to Suvarnabhumi. Data last updated August 18, 2026 and is based on user searches.
Discover last-minute flight deals from St. Louis to Suvarnabhumi. Data last updated August 18, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 8/16. 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 8/175:30 pm -
3 stops28h 05m
Tue 9/19:35 am -
2 stops45h 04m
Deal found 8/16![United Airlines logo]()
$1,150
This Delta deal was found by Cheapflights users on 8/17. 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 8/1911:13 am -
2 stops25h 52m
Tue 8/252:35 am -
2 stops34h 06m
Deal found 8/17![Delta logo]()
$1,149
This United Airlines deal was found by Cheapflights users on 8/17. 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 8/206:59 pm -
3 stops26h 36m
Wed 11/189:10 am -
2 stops23h 13m
Deal found 8/17![United Airlines logo]()
$1,154
This Etihad Airways deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Etihad Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/107:27 am -
2 stops28h 28m
Mon 9/149:00 pm -
2 stops35h 44m
Deal found 8/14![Multiple Airlines logo]()
$1,038
This United Airlines deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/109:40 am -
2 stops30h 55m
Mon 9/149:35 am -
2 stops46h 25m
Deal found 8/14![United Airlines logo]()
$1,155
This Trip.com deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/1112:17 pm -
3 stops34h 23m
Fri 9/1811:45 am -
3 stops64h 49m
Deal found 8/14![Multiple Airlines logo]()
$1,151
This flugladen.de deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure flugladen.de is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/1212:17 pm -
3 stops34h 23m
Fri 9/181:35 am -
3 stops50h 59m
Deal found 8/13![Multiple Airlines logo]()
$1,029
This Trip.com deal was found by Cheapflights users on 8/15. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/1812:12 pm -
3 stops37h 23m
Sat 10/31:30 am -
3 stops51h 04m
Deal found 8/15![Multiple Airlines logo]()
$1,102
This United Airlines deal was found by Cheapflights users on 8/16. 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 9/307:08 am -
2 stops28h 47m
Wed 10/79:35 am -
2 stops40h 42m
Deal found 8/16![United Airlines logo]()
$1,158
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 August 18, 2026.
Search for one-way flight options from St. Louis to Suvarnabhumi. Find affordable one-way fares based on user searches. Data last updated August 18, 2026.
This Kiwi.com deal was found by Cheapflights users on 8/17. 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 -
3 stops51h 05m
Deal found 8/17![Multiple Airlines logo]()
$502
This Kiwi.com deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/317:58 pm -
3 stops51h 17m
Deal found 8/13![Multiple Airlines logo]()
$514
This Kiwi.com deal was found by Cheapflights users on 8/17. 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 9/168:10 pm -
3 stops51h 50m
Deal found 8/17![Multiple Airlines logo]()
$518
This oojo deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/286:35 am -
2 stops29h 00m
Deal found 8/13![Multiple Airlines logo]()
$529
This Orbitz deal was found by Cheapflights users on 8/16. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/13:54 pm -
2 stops31h 11m
Deal found 8/16![Multiple Airlines logo]()
$540
This Expedia deal was found by Cheapflights users on 8/17. 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.
Sun 9/136:29 am -
2 stops38h 26m
Deal found 8/17![Multiple Airlines logo]()
$553
This Kiwi.com deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/16:45 pm -
3 stops40h 50m
Deal found 8/13![Multiple Airlines logo]()
$561
This China Airlines deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure 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
Deal found 8/14![Multiple Airlines logo]()
$568
This Etihad Airways deal was found by Cheapflights users on 8/17. 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
Deal found 8/17![Multiple Airlines logo]()
$574
This FlightHub deal was found by Cheapflights users on 8/17. 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 10/127:28 am -
2 stops36h 07m
Deal found 8/17![Qatar Airways logo]()
$575
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 August 18, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $1,029 (flugladen.de) |
One-way from | $502 (Kiwi.com) |
Popular in | December |
Cheapest in | February |
Average price | $1,031 |
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 2,558,603 searches. Data last updated August 18, 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
St. LouisBangkok
STL Lambert-St Louis - BKK Bangkok Suvarnabhumi
STLBKK
Lambert-St Louis
Thu 9/3
9:32 am-11:55 pm
2 stops26h 23m
Bangkok Suvarnabhumi
Mon 9/14
9:00 pm-12:27 am
2 stops39h 27m
$1,038
St. LouisBangkok
STL Lambert-St Louis - BKK Bangkok Suvarnabhumi
STLBKK
Lambert-St Louis
Sat 9/12
1:49 pm-6:45 am
2 stops28h 56m
Bangkok Suvarnabhumi
Fri 9/18
3:15 am-12:27 am
2 stops33h 12m
$1,038
St. LouisBangkok
STL Lambert-St Louis - BKK Bangkok Suvarnabhumi
STLBKK
Lambert-St Louis
Fri 9/11
8:54 am-11:55 pm
2 stops27h 01m
Bangkok Suvarnabhumi
Fri 9/18
9:00 pm-12:27 am
2 stops39h 27m
$1,038
St. LouisBangkok
STL Lambert-St Louis - BKK Bangkok Suvarnabhumi
STLBKK
Lambert-St Louis
Mon 1/11
6:52 am-11:20 pm
2 stops27h 28m
Bangkok Suvarnabhumi
Wed 1/27
2:40 pm-6:34 pm
2 stops40h 54m
$1,084
St. LouisBangkok
STL Lambert-St Louis - BKK Bangkok Suvarnabhumi
STLBKK
Lambert-St Louis
Wed 10/28
10:00 am-6:35 am
2 stops32h 35m
Bangkok Suvarnabhumi
Wed 11/11
2:40 pm-3:55 pm
2 stops38h 15m
$1,098
St. LouisBangkok
STL Lambert-St Louis - BKK Bangkok Suvarnabhumi
STLBKK
Lambert-St Louis
Mon 11/16
6:40 am-12:45 am
2 stops29h 05m
Bangkok Suvarnabhumi
Sun 11/22
9:30 pm-11:23 pm
2 stops38h 53m
$1,149
St. LouisBangkok
STL Lambert-St Louis - BKK Bangkok Suvarnabhumi
STLBKK
Lambert-St Louis
Thu 9/10
6:00 am-11:35 pm
2 stops29h 35m
Bangkok Suvarnabhumi
Mon 9/14
9:40 pm-1:23 pm
2 stops27h 43m
$1,154
St. LouisBangkok
STL Lambert-St Louis - BKK Bangkok Suvarnabhumi
STLBKK
Lambert-St Louis
Mon 11/16
6:00 am-5:10 am
2 stops34h 10m
Bangkok Suvarnabhumi
Sun 11/22
4:55 pm-6:05 pm
3 stops38h 10m
$1,173
St. LouisBangkok
STL Lambert-St Louis - BKK Bangkok Suvarnabhumi
STLBKK
Lambert-St Louis
Fri 9/18
6:25 am-9:45 am
3 stops39h 20m
Bangkok Suvarnabhumi
Sun 10/4
10:50 am-12:40 am
2 stops25h 50m
$1,194
Quickest round-trip
St. LouisBangkok
STL Lambert-St Louis - BKK Bangkok Suvarnabhumi
STLBKK
Lambert-St Louis
Sat 11/14
6:40 am-12:45 am
2 stops29h 05m
Bangkok Suvarnabhumi
Sun 11/22
12:55 am-1:23 pm
2 stops25h 28m
$1,199
Showing 1-10 of 18 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 August.
| 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, February is the cheapest month in which you can book a flight from St. Louis to Bangkok Suvarnabhumi Airport (average of $1,023). Flying from St. Louis to Bangkok Suvarnabhumi Airport in December is currently the most expensive (average of $1,735). 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 typical for this route at the moment.
St. Louis to Bangkok Suvarnabhumi Airport flights typically cost between $946 and $1,377 in September.The cheapest round-trip price found within the last 5 days was $1,029 on Multiple Airlines (Sep 12-Sep 18).
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 August 18, 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.
Overall
8.3
Food
7.7
Boarding
8.4
Comfort
8.2
Crew
8.7
Entertainment
7.8
Reviews
1 / 20
10.0
ExcellentNymo,Nov 2025
NRT - BKK
Overall
8.3
Food
7.7
Boarding
8.4
Comfort
8.2
Crew
8.7
Entertainment
7.8
Reviews
1 / 20
10.0
ExcellentNymo,Nov 2025
NRT - BKK
Overall
8.3
Food
7.7
Boarding
8.4
Comfort
8.2
Crew
8.7
Entertainment
7.8
Reviews
1 / 20
10.0
ExcellentNymo,Nov 2025
NRT - BKK
Overall
8.3
Food
7.7
Boarding
8.4
Comfort
8.2
Crew
8.7
Entertainment
7.8
Reviews
1 / 20
10.0
ExcellentNymo,Nov 2025
NRT - BKK
Overall
8.3
Food
7.7
Boarding
8.4
Comfort
8.2
Crew
8.7
Entertainment
7.8
Reviews
1 / 20
10.0
ExcellentNymo,Nov 2025
NRT - BKK
Overall
8.3
Food
7.7
Boarding
8.4
Comfort
8.2
Crew
8.7
Entertainment
7.8
Reviews
1 / 20
10.0
ExcellentNymo,Nov 2025
NRT - BKK
Related info for your journey
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St. Louis and Suvarnabhumi flights
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Top 8 airlines flying from St. Louis to Suvarnabhumi
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| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$881 | Average$1,259 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$929 | Average$1,045 | FlexibilityNo cancel fee | On-time79% | |
| Cheapest$946 | Average$1,204 | FlexibilityNo cancel fee | On-time68% | |
| Cheapest$948 | Average$1,242 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$974 | Average$1,351 | FlexibilityNo cancel fee | On-time72% | |
| Cheapest$982 | Average$1,244 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$990 | Average$1,411 | FlexibilityNo cancel fee | On-time80% | |
| Cheapest$1,048 | Average$1,456 | FlexibilityNo cancel fee | On-time74% |