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St. Louis

$577+ 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 1/19. Fares are subject to change and may not be available on all flights or dates of travel.
BKK — STL
Dec 14 — Dec 211
Sun 12/14
Sun 12/21
1 adult, Economy
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Cheap 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 November 14, 2025.

Round-trip from

$1,027
(Delta)

One-way from

$577
(Kiwi.com)

Popular in

January

Cheapest in

February

Average price

$1,371
From Thailand to Lambert-St Louis
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One-way flight from Thailand to Lambert-St Louis
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Highest demand for flights based on searches. 1% potential increase in price ($18 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($24 potential savings vs. average RT price).
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Average for round-trip flights in November 2025
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Find 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 November 14, 2025.

This Delta deal was found by Cheapflights users on 11/12. 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.
Thu 11/2011:40 pmHKT - STL
2 stops34h 24mDelta
Mon 11/246:00 amSTL - HKT
2 stops27h 10mDelta
Deal found 11/12$1,027
This Air Canada deal was found by Cheapflights users on 11/13. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/118:15 amBKK - STL
2 stops45h 13mAir Canada
Sun 1/114:05 pmSTL - BKK
2 stops41h 25mAir Canada
Deal found 11/13$1,117
This oojo deal was found by Cheapflights users on 11/13. 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.
Thu 11/202:15 amBKK - STL
2 stops58h 39mEVA Air
Fri 11/287:00 amSTL - BKK
2 stops39h 30mEVA Air
Deal found 11/13$1,123
This Trip.com deal was found by Cheapflights users on 11/13. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/132:05 amBKK - STL
2 stops34h 54mMultiple Airlines
Sun 1/112:50 pmSTL - BKK
2 stops45h 05mMultiple Airlines
Deal found 11/13$1,131
This Cathay Pacific deal was found by Cheapflights users on 11/12. 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 Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/217:55 amBKK - STL
2 stops29h 07mMultiple Airlines
Fri 11/288:40 amSTL - BKK
2 stops42h 15mMultiple Airlines
Deal found 11/12$1,134
This Korean Air deal was found by Cheapflights users on 11/13. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/102:05 amBKK - STL
2 stops34h 24mKorean Air
Mon 1/126:10 amSTL - BKK
2 stops29h 45mKorean Air
Deal found 11/13$1,141
This Cathay Pacific deal was found by Cheapflights users on 11/13. 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 Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/1512:45 pmBKK - STL
2 stops24h 12mCathay Pacific
Wed 1/147:04 amSTL - BKK
2 stops40h 01mCathay Pacific
Deal found 11/13$1,154
This oojo deal was found by Cheapflights users on 11/12. 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.
Fri 12/197:55 amBKK - STL
2 stops28h 03mCathay Pacific
Wed 12/246:20 amSTL - BKK
2 stops28h 55mCathay Pacific
Deal found 11/12$1,194
This Air Canada deal was found by Cheapflights users on 11/13. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/128:15 amBKK - STL
2 stops25h 42mAir Canada
Wed 1/144:05 pmSTL - BKK
2 stops41h 25mAir Canada
Deal found 11/13$1,210
This Air Canada deal was found by Cheapflights users on 11/13. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/138:15 amBKK - STL
2 stops41h 24mAir Canada
Wed 1/144:05 pmSTL - BKK
2 stops41h 25mAir Canada
Deal found 11/13$1,220
This Korean Air deal was found by Cheapflights users on 11/13. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/2012:55 amBKK - STL
2 stops25h 56mKorean Air
Sat 11/296:40 amSTL - BKK
2 stops27h 40mKorean Air
Deal found 11/13$1,246
This oojo deal was found by Cheapflights users on 11/12. 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.
Fri 11/217:55 amBKK - STL
2 stops27h 39mCathay Pacific
Sat 11/298:04 pmSTL - BKK
2 stops49h 36mCathay Pacific
Deal found 11/12$1,253

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 November 14, 2025.
Use the filters below to find and compare flights from Thailand to St. Louis that are best for you.

Fly from

Thailand

Fly to

St. Louis

Route

Depart

Return

Price

BangkokSt. Louis

BKK - STL

BKKSTL

Bangkok Suvarnabhumi

Thu 12/11

8:15 am-8:57 pm

2 stops25h 42m

Lambert-St Louis

Wed 1/14

4:05 pm-10:30 pm

2 stops41h 25m

$1,117

BangkokSt. Louis

BKK - STL

BKKSTL

Bangkok Suvarnabhumi

Thu 12/11

9:30 pm-11:29 pm

2 stops38h 59m

Lambert-St Louis

Mon 1/12

6:10 am-12:55 am

2 stops29h 45m

$1,141

BangkokSt. Louis

BKK - STL

BKKSTL

Bangkok Suvarnabhumi

Mon 12/15

11:40 am-4:50 pm

2 stops42h 10m

Lambert-St Louis

Mon 1/12

7:04 am-12:15 am

2 stops28h 11m

$1,154

BangkokSt. Louis

BKK - STL

BKKSTL

Bangkok Suvarnabhumi

Sun 12/14

7:15 pm-11:57 pm

2 stops41h 42m

Lambert-St Louis

Mon 1/12

7:04 am-11:15 am

2 stops39h 11m

$1,154

BangkokSt. Louis

BKK - STL

BKKSTL

Bangkok Suvarnabhumi

Wed 12/17

7:55 am-11:57 pm

2 stops29h 02m

Lambert-St Louis

Mon 1/12

7:04 am-11:15 am

2 stops39h 11m

$1,154

BangkokSt. Louis

BKK - STL

BKKSTL

Bangkok Suvarnabhumi

Wed 12/17

1:05 pm-11:57 pm

2 stops23h 52m

Lambert-St Louis

Sun 1/11

11:05 am-2:05 pm

2 stops38h 00m

$1,154

BangkokSt. Louis

BKK - STL

BKKSTL

Bangkok Suvarnabhumi

Sat 12/13

7:15 pm-11:57 pm

2 stops41h 42m

Lambert-St Louis

Mon 1/12

7:04 am-12:15 am

2 stops28h 11m

$1,154

BangkokSt. Louis

BKK - STL

BKKSTL

Bangkok Suvarnabhumi

Sun 12/14

4:55 pm-11:57 pm

2 stops44h 02m

Lambert-St Louis

Tue 1/13

7:04 am-12:15 am

2 stops28h 11m

$1,154

BangkokSt. Louis

BKK - STL

BKKSTL

Bangkok Suvarnabhumi

Thu 3/5

5:40 pm-11:48 pm

2 stops43h 08m

Lambert-St Louis

Mon 3/9

6:30 am-12:15 am

2 stops29h 45m

$1,155

BangkokSt. Louis

BKK - STL

BKKSTL

Bangkok Suvarnabhumi

Thu 3/5

9:30 pm-4:44 pm

2 stops32h 14m

Lambert-St Louis

Mon 3/9

6:30 am-12:55 am

2 stops30h 25m

$1,183

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/12

Showing 1-10 of 20 results
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

What is the cheapest time of day to fly from TH to STL?

Find hourly flight availability from Thailand to St. Louis. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 14, 2025.

When flying from Thailand to St. Louis, the time of day you fly usually plays a role in the price. Save by searching for a flight at noon, which can drop the price by up to 73% versus a flight in the evening.

What is the cheapest day to fly from Thailand to St. Louis?

Use this chart to determine the cheapest time to fly round-trip from Thailand to St. Louis. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Thailand to St. Louis flight should consider departing on Saturday afternoons when fares are most often at their lowest. Tuesday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

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 November 14, 2025.
Get a feel of what it's like to fly with Japan Airlines, United Airlines, and Air Canada 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.
Japan Airlines
8.3
Very good
1,613 reviews

Entertainment

7.8

Comfort

8.2

Overall

8.3

Food

7.7

Boarding

8.4

Crew

8.7

Reviews

1 / 20
2.0
Mediocre

Anonymous,Aug 2025

HND - JFK

The plane was delayed due to maintenance after everybody boarded (1 hour), the inside of the plane was not air conditioned before takeoff, and the weather outside was hot. Upon arriving in JFK, there were further delays. The airline attendants were passive aggresive and not certainly were not polite.
Japan Airlines
8.3
Very good
1,613 reviews
Japan Airlines
8.3
Very good
1,613 reviews

Entertainment

7.8

Comfort

8.2

Overall

8.3

Food

7.7

Boarding

8.4

Crew

8.7

Reviews

1 / 20
2.0
Mediocre

Anonymous,Aug 2025

HND - JFK

The plane was delayed due to maintenance after everybody boarded (1 hour), the inside of the plane was not air conditioned before takeoff, and the weather outside was hot. Upon arriving in JFK, there were further delays. The airline attendants were passive aggresive and not certainly were not polite.
United Airlines
7.4
Good
9,017 reviews
Japan Airlines
8.3
Very good
1,613 reviews

Entertainment

7.8

Comfort

8.2

Overall

8.3

Food

7.7

Boarding

8.4

Crew

8.7

Reviews

1 / 20
2.0
Mediocre

Anonymous,Aug 2025

HND - JFK

The plane was delayed due to maintenance after everybody boarded (1 hour), the inside of the plane was not air conditioned before takeoff, and the weather outside was hot. Upon arriving in JFK, there were further delays. The airline attendants were passive aggresive and not certainly were not polite.
Air Canada
7.1
Good
10,448 reviews
Japan Airlines
8.3
Very good
1,613 reviews

Entertainment

7.8

Comfort

8.2

Overall

8.3

Food

7.7

Boarding

8.4

Crew

8.7

Reviews

1 / 20
2.0
Mediocre

Anonymous,Aug 2025

HND - JFK

The plane was delayed due to maintenance after everybody boarded (1 hour), the inside of the plane was not air conditioned before takeoff, and the weather outside was hot. Upon arriving in JFK, there were further delays. The airline attendants were passive aggresive and not certainly were not polite.

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 $1,117, Air Canada can have you in St. Louis from Thailand in 25h 42m. 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.

  • 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
Fairview Heights
Maryland Heights
Collinsville
Eureka
Glencoe
St. Peters
Chesterfield
Alton
Farmington
Festus

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Alternative routes for Thailand to St. Louis

See prices for flight routes from nearby airports that may be better suited for you.
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Top 3 airlines flying from Thailand to St. Louis

Discover the top 3 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 November 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
Japan AirlinesCheapest$980Average$1,211FlexibilityNo cancel feeOn-time79%
Air CanadaCheapest$1,015Average$1,207FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$1,410Average$1,415FlexibilityNo cancel feeOn-time69%

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