St. Louis

$638+ Cheap flights from Thailand to St. Louis (STL)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/23. Fares are subject to change and may not be available on all flights or dates of travel.
BKK — STL
Jul 5 — Jul 121
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Cheap flight deals from Thailand to St. Louis

Cheapest flights from Thailand to St. Louis
Explore the most affordable flight options available from Thailand to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 5, 2026.

This SmartFares deal was found by Cheapflights users on 6/1. 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.
Sat 7/45:50 pm
BKK
-
STL
2 stops56h 02m
Multiple Airlines
Mon 7/137:56 pm
STL
-
BKK
2 stops28h 04m
Multiple Airlines
Deal found 6/1$1,266
This Lufthansa deal was found by Cheapflights users on 6/4. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/1911:40 pm
BKK
-
STL
2 stops36h 04m
Austrian Airlines
Sun 7/261:13 pm
STL
-
BKK
2 stops37h 37m
Austrian Airlines
Deal found 6/4$1,376
This Qatar Airways deal was found by Cheapflights users on 6/3. 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 Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/148:30 pm
HKT
-
STL
2 stops39h 10m
Qatar Airways
Wed 9/166:30 am
STL
-
HKT
2 stops37h 15m
Qatar Airways
Deal found 6/3$1,431
This United Airlines deal was found by Cheapflights users on 6/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/47:00 am
BKK
-
STL
2 stops23h 17m
United Airlines
Mon 7/131:38 pm
STL
-
BKK
3 stops31h 57m
United Airlines
Deal found 6/1$1,558
This China Airlines deal was found by Cheapflights users on 6/1. 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.
Thu 8/201:20 pm
BKK
-
STL
2 stops36h 15m
Multiple Airlines
Sat 9/123:19 pm
STL
-
BKK
2 stops30h 26m
Multiple Airlines
Deal found 6/1$2,055
This China Airlines deal was found by Cheapflights users on 6/1. 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 6/151:20 pm
BKK
-
STL
2 stops40h 50m
Multiple Airlines
Mon 8/313:04 pm
STL
-
BKK
2 stops30h 41m
Multiple Airlines
Deal found 6/1$2,071
This oojo deal was found by Cheapflights users on 6/1. 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 8/49:40 am
BKK
-
STL
2 stops26h 19m
Japan Airlines
Wed 8/199:32 am
STL
-
BKK
2 stops32h 13m
Japan Airlines
Deal found 6/1$2,117
This American Airlines deal was found by Cheapflights users on 6/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/89:40 pm
BKK
-
STL
2 stops35h 57m
American Airlines
Mon 8/315:42 am
STL
-
BKK
2 stops36h 03m
American Airlines
Deal found 6/1$2,149
This American Airlines deal was found by Cheapflights users on 6/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/179:40 pm
BKK
-
STL
2 stops31h 01m
American Airlines
Wed 8/196:36 am
STL
-
BKK
2 stops35h 09m
American Airlines
Deal found 6/1$2,161
This American Airlines deal was found by Cheapflights users on 6/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/187:55 am
BKK
-
STL
2 stops24h 31m
American Airlines
Wed 8/198:36 am
STL
-
BKK
2 stops33h 09m
American Airlines
Deal found 6/1$2,164
This American Airlines deal was found by Cheapflights users on 6/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/197:55 am
BKK
-
STL
2 stops24h 31m
American Airlines
Thu 8/208:36 am
STL
-
BKK
2 stops26h 24m
American Airlines
Deal found 6/1$2,167
This Japan Airlines deal was found by Cheapflights users on 6/1. 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 Japan Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/117:55 am
BKK
-
STL
2 stops23h 02m
Multiple Airlines
Mon 8/319:32 am
STL
-
BKK
2 stops32h 13m
Multiple Airlines
Deal found 6/1$2,169

Find flight deals from Thailand to St. Louis

Keep the following information in mind while searching for Thailand to St. Louis flight deals. Data was last updated June 5, 2026.

Round-trip from

$1,266
(SmartFares)

One-way from

$638
(oojo)

Popular in

July

Cheapest in

February

Average price

$1,089
From Thailand to Lambert-St Louis
One-way flight from Thailand to Lambert-St Louis
Highest demand for flights based on searches. 8% potential increase in price ($128 potential increase over avg. RT price).
Cheapest flight prices on average. 3% potential price decrease ($54 potential savings vs. average RT price).
Average for round-trip flights in June 2026

Cheapflights Fare Finder

 
Customize your flight search to find flights from Thailand to St. Louis 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 June 5, 2026.
Use the filters below to find and compare flights from Thailand to St. Louis that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BangkokSt. Louis

BKK - STL

BKKSTL

Bangkok Suvarnabhumi

Sun 7/19

11:40 pm-11:44 pm

2 stops36h 04m

Lambert-St Louis

Sun 7/26

1:13 pm-2:50 pm

2 stops37h 37m

$1,376

Phuket CitySt. Louis

HKT - STL

HKTSTL

Phuket City

Mon 9/14

8:30 pm-11:40 pm

2 stops39h 10m

Lambert-St Louis

Wed 9/16

6:30 am-7:45 am

2 stops37h 15m

$1,431

BangkokSt. Louis

BKK - STL

BKKSTL

Bangkok Suvarnabhumi

Tue 8/4

5:15 pm-7:30 pm

2 stops38h 15m

Lambert-St Louis

Wed 8/19

9:35 pm-4:05 pm

1 stop30h 30m

$4,293

BangkokSt. Louis

BKK - STL

BKKSTL

Bangkok Suvarnabhumi

Thu 8/20

4:45 pm-2:06 pm

2 stops33h 21m

Lambert-St Louis

Sat 9/12

4:40 pm-11:10 am

3 stops30h 30m

$4,816

BangkokSt. Louis

BKK - STL

BKKSTL

Bangkok Suvarnabhumi

Tue 8/4

3:45 pm-10:27 am

3 stops30h 42m

Lambert-St Louis

Wed 8/19

7:00 am-11:55 pm

2 stops28h 55m

$5,101

BangkokSt. Louis

BKK - STL

BKKSTL

Bangkok Suvarnabhumi

Mon 6/15

3:45 pm-10:39 am

3 stops30h 54m

Lambert-St Louis

Mon 8/31

9:30 am-4:35 am

2 stops31h 05m

$5,473

BangkokSt. Louis

BKK - STL

BKKSTL

Bangkok Suvarnabhumi

Thu 8/20

3:45 pm-10:12 am

3 stops30h 27m

Lambert-St Louis

Sat 9/12

8:00 am-9:35 am

3 stops37h 35m

$5,926
Quickest round-trip

BangkokSt. Louis

BKK - STL

BKKSTL

Bangkok Suvarnabhumi

Sun 7/19

11:45 pm-1:25 pm

1 stop25h 40m

Lambert-St Louis

Sun 7/26

3:30 pm-6:25 am

1 stop26h 55m

$12,906
Cheapest one-way

BangkokSt. Louis

BKK - STL

BKKSTL

Bangkok Suvarnabhumi

Fri 10/23

3:00 am-11:59 pm

2 stops32h 59m

$638

BangkokSt. Louis

BKK - STL

BKKSTL

Bangkok Suvarnabhumi

Wed 6/24

10:50 am-2:06 pm

3 stops39h 16m

$767

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/1

Showing 1-10 of 16 resultsSorted by cheapest first
1
2

Best time to book a flight from Thailand to St. Louis

Have a flexible travel schedule? Discover the best time to fly to St. Louis from Thailand with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Thailand to St. Louis
No data available for this route at this time. Please check back soon.

Reviews of airlines servicing St. Louis

Get insights into the airlines that provide service to St. Louis. 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 St. Louis. Reviews last updated June 5, 2026.
Get a feel of what it's like to fly with Japan Airlines and United Airlines from Thailand to St. Louis by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Crew

8.7

Entertainment

7.8

Food

7.7

Comfort

8.2

Boarding

8.4

Overall

8.3

Reviews

1 / 20
10.0
Excellent

Makoto,May 2026

KIX - LAX

Everyone was so attentive and helpful. Food was tasty and the drink selection was great! I few economy but was treated like 1st class!

Crew

8.7

Entertainment

7.8

Food

7.7

Comfort

8.2

Boarding

8.4

Overall

8.3

Reviews

1 / 20
10.0
Excellent

Makoto,May 2026

KIX - LAX

Everyone was so attentive and helpful. Food was tasty and the drink selection was great! I few economy but was treated like 1st class!

Crew

8.7

Entertainment

7.8

Food

7.7

Comfort

8.2

Boarding

8.4

Overall

8.3

Reviews

1 / 20
10.0
Excellent

Makoto,May 2026

KIX - LAX

Everyone was so attentive and helpful. Food was tasty and the drink selection was great! I few economy but was treated like 1st class!

Related info for your journey

Find useful and relevant information for your journey from Thailand to St. Louis. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • What airport do you fly into for flights to St. Louis from Thailand?

    If you book a flight to St. Louis from Thailand, you will be flying to Lambert-St Louis, which is the city’s only airport. Lambert-St Louis (STL) is located 12.7 mi from the center of St. Louis.

  • How long is the flight from Thailand to St. Louis?

    For as low as $1,558, Austrian Airlines can have you in St. Louis from Thailand in 23h 17m. The distance from Thailand to St. Louis is about 8737 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines to fly from Thailand to St. Louis one-way?

    The cheapest airlines for a one-way flight from Thailand to St. Louis are Air Canada ($524), Delta ($608), and Cathay Pacific ($680).

  • Can I find deals for flights from Thailand to St. Louis that include hotel bookings?

    Yes. In addition to deals on Thailand to St. Louis flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Thailand to St. Louis?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Thailand to St. Louis.

  • Can I find deals for business class flights from Thailand to St. Louis?

    Yes. Cheapflights offers flight deals from Thailand to St. Louis by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Traveling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
O'Fallon
Edwardsville
Fenton
Swansea
Fairview Heights
Maryland Heights
Collinsville
Eureka
Wentzville
Glencoe
Chesterfield
Alton
Farmington
Festus

Browse thousands of different options on Cheapflights for your next trip

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Top 2 airlines flying from Thailand to St. Louis

Discover the top 2 airlines that operate flights from Thailand to St. Louis. 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 June 5, 2026.
AirlineCheapestAverageFlexibilityOn-time
Japan AirlinesCheapest$952Average$1,237FlexibilityNo cancel feeOn-time79%
United AirlinesCheapest$1,410Average$1,415FlexibilityNo cancel feeOn-time69%

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