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$596+ Cheap flights from St. Louis (STL) to Thailand

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 5/12. Fares are subject to change and may not be available on all flights or dates of travel.
STL — BKK
May 4 — May 111
Sun 5/4
Sun 5/11
1 adult, Economy
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Cheap flight deals from St. Louis to Thailand

Keep the following information in mind while searching for St. Louis to Thailand flight deals. Data was last updated April 29, 2025.

Round-trip from

$1,095
(Gurufare)

One-way from

$596
(Kiwi.com)

Popular in

December

Cheapest in

October

Average price

$1,299
From Lambert-St Louis to Thailand
Search Deals
One-way flight from Lambert-St Louis to Thailand
Search Deals
Highest demand for flights based on searches. 3% potential increase in price ($47 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($47 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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Find flight deals from St. Louis to Thailand

Cheapest flights from St. Louis to Thailand
Explore the most affordable flight options available from St. Louis to Thailand. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 29, 2025.

This FlightHub deal was found by Cheapflights users on 4/28. 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.
Tue 11/187:00 amSTL - HKT
2 stops40h 55mQatar Airways
Tue 12/212:50 amHKT - STL
2 stops36h 06mQatar Airways
Deal found 4/28$1,068
This oojo deal was found by Cheapflights users on 4/27. 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 9/283:35 pmSTL - BKK
2 stops36h 45mChina Airlines
Wed 10/12:40 amBKK - STL
2 stops57h 19mChina Airlines
Deal found 4/27$1,084
This Gurufare deal was found by Cheapflights users on 4/29. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/289:17 amSTL - BKK
2 stops31h 18mANA
Wed 9/39:35 pmBKK - STL
2 stops28h 51mANA
Deal found 4/29$1,095
This Delta deal was found by Cheapflights users on 4/29. 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 8/288:55 amSTL - BKK
2 stops28h 10mDelta
Tue 9/22:35 amBKK - STL
2 stops41h 31mDelta
Deal found 4/29$1,105
This United Airlines deal was found by Cheapflights users on 4/28. 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 10/301:27 pmSTL - BKK
3 stops33h 23mUnited Airlines
Tue 11/47:10 amBKK - STL
2 stops27h 00mUnited Airlines
Deal found 4/28$1,118
This Expedia deal was found by Cheapflights users on 4/28. 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.
Thu 10/162:55 pmSTL - HKT
2 stops63h 55mMultiple Airlines
Mon 10/2712:50 amHKT - STL
2 stops35h 06mMultiple Airlines
Deal found 4/28$1,122
This FlightHub deal was found by Cheapflights users on 4/28. 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.
Fri 9/197:23 amSTL - BKK
2 stops27h 37mJapan Airlines
Fri 9/2612:25 amBKK - STL
2 stops34h 34mJapan Airlines
Deal found 4/28$1,171
This oojo deal was found by Cheapflights users on 4/28. 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 9/193:35 pmSTL - BKK
2 stops31h 45mEVA Air
Sat 9/274:45 pmBKK - STL
2 stops43h 14mEVA Air
Deal found 4/28$1,178
This Cathay Pacific deal was found by Cheapflights users on 4/28. 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.
Tue 4/295:45 amSTL - BKK
2 stops30h 05mMultiple Airlines
Tue 5/67:00 pmBKK - STL
2 stops35h 33mMultiple Airlines
Deal found 4/28$1,183
This oojo deal was found by Cheapflights users on 4/29. 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 5/43:29 pmSTL - BKK
2 stops44h 21mCathay Pacific
Thu 5/88:05 amBKK - STL
2 stops26h 40mCathay Pacific
Deal found 4/29$1,204
This Ovago deal was found by Cheapflights users on 4/28. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/266:14 amSTL - BKK
2 stops36h 41mQatar Airways
Sun 8/103:30 amBKK - STL
2 stops28h 53mQatar Airways
Deal found 4/28$1,558
This EVA Air deal was found by Cheapflights users on 4/29. 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 EVA Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/63:24 pmSTL - CNX
2 stops31h 01mMultiple Airlines
Wed 8/139:10 pmCNX - STL
3 stops31h 35mMultiple Airlines
Deal found 4/29$1,630

Cheapflights Fare Finder

Customize your flight search to find flights from St. Louis to Thailand 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 April 29, 2025.
Use the filters below to find and compare flights from St. Louis to Thailand that are best for you.

Fly from

St. Louis

Fly to

Thailand

Route

Depart

Return

Price

St. LouisPhuket City

STL - HKT

STLHKT

Lambert-St Louis

Thu 10/16

2:55 pm-6:50 pm

2 stops63h 55m

Phuket City

Mon 10/27

12:50 am-11:56 pm

2 stops35h 06m

$1,122

St. LouisPhuket City

STL - HKT

STLHKT

Lambert-St Louis

Thu 10/16

7:00 am-6:50 pm

2 stops47h 50m

Phuket City

Tue 10/28

8:20 am-11:56 pm

2 stops51h 36m

$1,127

St. LouisBangkok

STL - BKK

STLBKK

Lambert-St Louis

Sun 5/4

3:29 pm-11:50 pm

2 stops44h 21m

Bangkok Suvarnabhumi

Thu 5/8

8:05 am-10:45 pm

2 stops26h 40m

$1,204

St. LouisBangkok

STL - BKK

STLBKK

Lambert-St Louis

Mon 5/12

6:30 am-11:10 am

2 stops40h 40m

Bangkok Suvarnabhumi

Mon 6/9

4:45 pm-2:07 pm

2 stops33h 22m

$1,276

St. LouisBangkok

STL - BKK

STLBKK

Lambert-St Louis

Sat 5/3

3:08 pm-12:10 pm

2 stops33h 02m

Bangkok Suvarnabhumi

Fri 5/9

2:40 am-11:59 pm

2 stops57h 19m

$1,351

St. LouisBangkok

STL - BKK

STLBKK

Lambert-St Louis

Fri 5/2

9:40 am-6:00 am

2 stops32h 20m

Bangkok Suvarnabhumi

Sun 5/4

9:35 pm-12:19 pm

2 stops26h 44m

$1,399

St. LouisBangkok

STL - BKK

STLBKK

Lambert-St Louis

Sun 5/4

6:11 pm-11:10 am

2 stops28h 59m

Bangkok Suvarnabhumi

Tue 5/6

1:35 am-4:52 pm

2 stops27h 17m

$1,405

St. LouisBangkok

STL - BKK

STLBKK

Lambert-St Louis

Fri 7/11

8:00 am-4:35 am

2 stops32h 35m

Bangkok Suvarnabhumi

Thu 7/24

9:35 am-4:54 am

2 stops31h 19m

$1,426

St. LouisBangkok

STL - BKK

STLBKK

Lambert-St Louis

Sat 7/26

6:14 am-6:55 am

2 stops36h 41m

Bangkok Suvarnabhumi

Sun 8/10

3:30 am-8:23 pm

2 stops28h 53m

$1,558

St. LouisBangkok

STL - BKK

STLBKK

Lambert-St Louis

Sat 7/5

11:17 am-1:05 am

2 stops25h 48m

Bangkok Suvarnabhumi

Sun 7/20

11:30 pm-12:38 am

2 stops37h 08m

$1,647

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/29

Showing 1-10 of 19 results
1
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Best time to book a flight from St. Louis to Thailand

Have a flexible travel schedule? Discover the best time to fly to Thailand from St. Louis 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 St. Louis to Thailand

What is the cheapest month to book a flight from St. Louis to Thailand?

Currently, March is the cheapest month in which you can book a flight from St. Louis to Thailand (average of $958). Flying from St. Louis to Thailand in December is currently the most expensive (average of $1,574). 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.

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

Find hourly flight availability from St. Louis to Thailand. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 29, 2025.

When flying from St. Louis to Thailand, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Rainfall in Thailand by month

Plan your trip to Thailand by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Thailand ranges from 0.4 - 12.6 inches per month. September is typically the wettest month, when rainfall can reach 12.6 in. January is typically the driest time to visit Thailand when rainfall is around 0.4 in.

Temperature in Thailand by month

Plan your trip to Thailand by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Thailand, use this chart to help with planning. For those seeking warmer temperatures, April is the ideal time of year to visit, when temperatures reach an average of 86.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 78.8 F).

Reviews of airlines servicing Thailand

Get insights into the airlines that provide service to Thailand. 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 Thailand. Reviews last updated April 29, 2025.
Get a feel of what it's like to fly with EVA Air, Japan Airlines and China Airlines from St. Louis to Thailand by reading reviews from past customers. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
EVA Air
8.4
Very good
1,186 reviews

Entertainment

8.0

Boarding

8.4

Food

8.1

Crew

8.6

Overall

8.4

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Dale,Apr 2025

SFO - TPE

Great experience. Check in process was excellent - both online and bag drop
EVA Air
8.4
Very good
1,186 reviews
EVA Air
8.4
Very good
1,186 reviews

Entertainment

8.0

Boarding

8.4

Food

8.1

Crew

8.6

Overall

8.4

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Dale,Apr 2025

SFO - TPE

Great experience. Check in process was excellent - both online and bag drop
Japan Airlines
8.3
Very good
1,459 reviews
EVA Air
8.4
Very good
1,186 reviews

Entertainment

8.0

Boarding

8.4

Food

8.1

Crew

8.6

Overall

8.4

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Dale,Apr 2025

SFO - TPE

Great experience. Check in process was excellent - both online and bag drop
China Airlines
8.3
Very good
732 reviews
EVA Air
8.4
Very good
1,186 reviews

Entertainment

8.0

Boarding

8.4

Food

8.1

Crew

8.6

Overall

8.4

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Dale,Apr 2025

SFO - TPE

Great experience. Check in process was excellent - both online and bag drop
ANA
8.3
Very good
852 reviews
EVA Air
8.4
Very good
1,186 reviews

Entertainment

8.0

Boarding

8.4

Food

8.1

Crew

8.6

Overall

8.4

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Dale,Apr 2025

SFO - TPE

Great experience. Check in process was excellent - both online and bag drop
Delta
8.0
Very good
7,936 reviews
EVA Air
8.4
Very good
1,186 reviews

Entertainment

8.0

Boarding

8.4

Food

8.1

Crew

8.6

Overall

8.4

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Dale,Apr 2025

SFO - TPE

Great experience. Check in process was excellent - both online and bag drop

Related info for your journey

Find useful and relevant information for your journey from St. Louis to Thailand. 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 from for flights from St. Louis to Thailand?

    Most people fly from Lambert-St Louis (STL) if they book a flight from St. Louis to Thailand. Lambert-St Louis is conveniently located just 12.7 mi from St. Louis’s city center.

  • What are the most popular routes from St. Louis to Thailand?

    The most popular flight routes from St. Louis to Thailand are Lambert-St Louis - Bangkok Suvarnabhumi, Lambert-St Louis - Phuket City and Lambert-St Louis - Chiang Mai.

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

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

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

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

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

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

  • What is the cheapest month to book a flight from St. Louis to Thailand?

    Currently, March is the cheapest month in which you can book a flight from St. Louis to Thailand (average of $958). Flying from St. Louis to Thailand in December is currently the most expensive (average of $1,574). 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.

See more FAQs

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Alternative routes for St. Louis to Thailand

See prices for flight routes from nearby airports that may be better suited for you.
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Top 10 airlines flying from St. Louis to Thailand

Discover the top 10 airlines that operate flights from St. Louis to Thailand. 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 April 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
Japan AirlinesCheapest$1,080Average$1,164FlexibilityNo cancel feeOn-time79%
United AirlinesCheapest$1,113Average$1,160FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$1,114Average$1,195FlexibilityNo cancel feeOn-time71%
Turkish AirlinesCheapest$1,116Average$1,320FlexibilityNo cancel feeOn-time77%
ANACheapest$1,128Average$1,243FlexibilityNo cancel feeOn-time80%
DeltaCheapest$1,144Average$1,687FlexibilityNo cancel feeOn-timeN/A
Qatar AirwaysCheapest$1,148Average$1,649FlexibilityNo cancel feeOn-time68%
Air CanadaCheapest$1,176Average$1,747FlexibilityNo cancel feeOn-time67%
Cathay PacificCheapest$1,234Average$1,401FlexibilityNo cancel feeOn-time72%
Korean AirCheapest$1,259Average$1,339FlexibilityNo cancel feeOn-time81%

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