St. Louis

$605+ 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 7/22. Fares are subject to change and may not be available on all flights or dates of travel.
BKK — STL
Jun 15 — Jun 221
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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 May 16, 2026.

This Air Canada deal was found by Cheapflights users on 5/15. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/248:15 am
BKK
-
STL
2 stops44h 15m
Air Canada
Sun 2/71:30 pm
STL
-
BKK
2 stops28h 00m
Air Canada
Deal found 5/15$1,110
This SmartFares deal was found by Cheapflights users on 5/15. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/91:45 pm
BKK
-
STL
2 stops23h 14m
Multiple Airlines
Wed 1/63:24 pm
STL
-
BKK
2 stops32h 11m
Multiple Airlines
Deal found 5/15$1,127
This Air Canada deal was found by Cheapflights users on 5/15. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/248:15 am
BKK
-
STL
2 stops44h 15m
Air Canada
Sat 2/1310:23 am
STL
-
BKK
2 stops31h 07m
Air Canada
Deal found 5/15$1,132
This Air Canada deal was found by Cheapflights users on 5/15. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/248:15 am
BKK
-
STL
2 stops44h 15m
Air Canada
Mon 2/810:23 am
STL
-
BKK
2 stops31h 07m
Air Canada
Deal found 5/15$1,133
This Qatar Airways deal was found by Cheapflights users on 5/15. 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 Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/248:30 pm
BKK
-
STL
2 stops40h 29m
Qatar Airways
Thu 2/117:00 am
STL
-
BKK
2 stops34h 40m
Qatar Airways
Deal found 5/15$1,155
This Air Canada deal was found by Cheapflights users on 5/15. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/248:15 am
BKK
-
STL
2 stops44h 15m
Air Canada
Fri 2/124:15 pm
STL
-
BKK
2 stops49h 15m
Air Canada
Deal found 5/15$1,158
This Expedia deal was found by Cheapflights users on 5/15. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/218:15 am
BKK
-
STL
2 stops44h 15m
Air Canada
Wed 2/1010:23 am
STL
-
BKK
2 stops31h 07m
Air Canada
Deal found 5/15$1,203
This Air Canada deal was found by Cheapflights users on 5/11. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/297:45 am
BKK
-
STL
2 stops40h 36m
Air Canada
Tue 8/2512:10 pm
STL
-
BKK
2 stops52h 55m
Air Canada
Deal found 5/11$1,204
This SmartFares deal was found by Cheapflights users on 5/11. 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.
Tue 6/303:00 am
BKK
-
STL
2 stops32h 59m
Multiple Airlines
Wed 8/2610:16 am
STL
-
BKK
2 stops38h 39m
Multiple Airlines
Deal found 5/11$1,212
This Air Canada deal was found by Cheapflights users on 5/11. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/37:05 am
BKK
-
STL
2 stops42h 57m
Air Canada
Mon 8/2412:10 pm
STL
-
BKK
2 stops28h 55m
Air Canada
Deal found 5/11$1,213
This Air Canada deal was found by Cheapflights users on 5/11. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/297:45 am
BKK
-
STL
2 stops40h 36m
Air Canada
Thu 8/278:55 am
STL
-
BKK
2 stops26h 25m
Air Canada
Deal found 5/11$1,216
This Air Canada deal was found by Cheapflights users on 5/15. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/108:15 am
BKK
-
STL
2 stops44h 15m
Air Canada
Sat 1/91:30 pm
STL
-
BKK
2 stops52h 00m
Air Canada
Deal found 5/15$1,217

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 May 16, 2026.

Round-trip from

$1,204
(Air Canada)

One-way from

$605
(SmartFares)

Popular in

March

Cheapest in

February

Average price

$1,331
From Thailand to Lambert-St Louis
One-way flight from Thailand to Lambert-St Louis
High demand for flights, 7% potential price rise
Cheapest flight prices on average. 3% potential price decrease ($45 potential savings vs. average RT price).
Average for round-trip flights in May 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 May 16, 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

Phuket CitySt. Louis

HKT - STL

HKTSTL

Phuket City

Wed 11/4

12:50 am-11:56 pm

2 stops36h 06m

Lambert-St Louis

Sun 11/8

8:40 am-5:50 am

2 stops32h 10m

$1,240

BangkokSt. Louis

BKK - STL

BKKSTL

Bangkok Suvarnabhumi

Thu 7/2

2:40 am-9:35 pm

2 stops30h 55m

Lambert-St Louis

Sun 7/12

7:56 pm-4:20 pm

2 stops32h 24m

$1,301

BangkokSt. Louis

BKK - STL

BKKSTL

Bangkok Suvarnabhumi

Thu 9/17

9:05 pm-4:42 pm

2 stops55h 37m

Lambert-St Louis

Mon 9/21

10:14 am-6:20 am

2 stops32h 06m

$1,327

BangkokSt. Louis

BKK - STL

BKKSTL

Bangkok Suvarnabhumi

Tue 6/30

9:55 am-7:21 pm

2 stops45h 26m

Lambert-St Louis

Fri 8/28

8:36 am-12:55 pm

2 stops40h 19m

$1,363

BangkokSt. Louis

BKK - STL

BKKSTL

Bangkok Suvarnabhumi

Sat 7/4

9:55 am-12:16 am

2 stops50h 21m

Lambert-St Louis

Tue 8/25

6:00 am-6:20 am

2 stops36h 20m

$1,461

Phuket CitySt. Louis

HKT - STL

HKTSTL

Phuket City

Thu 11/5

12:20 pm-7:27 pm

2 stops44h 07m

Lambert-St Louis

Sun 11/8

7:00 am-11:20 am

2 stops39h 20m

$1,463
Quickest round-trip

BangkokSt. Louis

BKK - STL

BKKSTL

Bangkok Suvarnabhumi

Thu 9/17

7:00 am-9:36 pm

2 stops26h 36m

Lambert-St Louis

Mon 9/21

12:59 pm-4:35 am

2 stops27h 36m

$1,468

BangkokSt. Louis

BKK - STL

BKKSTL

Bangkok Suvarnabhumi

Sun 6/28

7:00 am-11:44 pm

2 stops28h 44m

Lambert-St Louis

Mon 8/24

9:55 am-9:35 am

3 stops35h 40m

$1,487

BangkokSt. Louis

BKK - STL

BKKSTL

Bangkok Suvarnabhumi

Sat 7/4

9:55 am-12:16 am

2 stops50h 21m

Lambert-St Louis

Mon 8/24

10:16 am-6:20 am

2 stops32h 04m

$1,502

Phuket CitySt. Louis

HKT - STL

HKTSTL

Phuket City

Mon 5/25

9:00 pm-11:59 pm

2 stops38h 59m

Lambert-St Louis

Wed 6/10

9:42 am-2:10 pm

2 stops40h 28m

$1,825

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/11

Showing 1-10 of 27 resultsSorted by cheapest first
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3

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 May 16, 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.

Entertainment

7.8

Crew

8.7

Overall

8.3

Food

7.7

Comfort

8.2

Boarding

8.4

Reviews

1 / 20
8.0
Excellent

Evan,Feb 2026

NRT - ORD

They didn't get my order for vegetarian meals, and the non-veggie options were mediocre. But the crew was very nice an tried to help as well as they could.

Entertainment

7.8

Crew

8.7

Overall

8.3

Food

7.7

Comfort

8.2

Boarding

8.4

Reviews

1 / 20
8.0
Excellent

Evan,Feb 2026

NRT - ORD

They didn't get my order for vegetarian meals, and the non-veggie options were mediocre. But the crew was very nice an tried to help as well as they could.

Entertainment

7.8

Crew

8.7

Overall

8.3

Food

7.7

Comfort

8.2

Boarding

8.4

Reviews

1 / 20
8.0
Excellent

Evan,Feb 2026

NRT - ORD

They didn't get my order for vegetarian meals, and the non-veggie options were mediocre. But the crew was very nice an tried to help as well as they could.

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 $1,240, Qatar Airways can have you in St. Louis from Thailand in 36h 06m. The distance from Thailand to St. Louis is about 9145 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
Edwardsville
O'Fallon
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 May 16, 2026.
AirlineCheapestAverageFlexibilityOn-time
Japan AirlinesCheapest$952Average$1,236FlexibilityNo cancel feeOn-time79%
United AirlinesCheapest$1,410Average$1,415FlexibilityNo cancel feeOn-time69%

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