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St. Louis

$645+ 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 5/8. Fares are subject to change and may not be available on all flights or dates of travel.
BKK — STL
Apr 6 — Apr 131
Sun 4/6
Sun 4/13
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 April 1, 2025.

Round-trip from

$1,070
(EaseMyTrip)

One-way from

$645
(Mytrip)

Popular in

March

Cheapest in

May

Average price

$1,485
From Thailand to Lambert-St Louis
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One-way flight from Thailand to Lambert-St Louis
Search Deals
Highest demand for flights based on searches. 15% potential increase in price ($230 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($36 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 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 April 1, 2025.

This EaseMyTrip deal was found by Cheapflights users on 4/1. 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 EaseMyTrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/232:40 amBKK - STL
2 stops47h 27mMultiple Airlines
Mon 8/117:32 pmSTL - BKK
2 stops28h 38mMultiple Airlines
Deal found 4/1$1,070
This United deal was found by Cheapflights users on 4/1. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/249:35 amBKK - STL
2 stops47h 50mUnited Airlines
Mon 8/115:41 pmSTL - BKK
3 stops46h 54mUnited Airlines
Deal found 4/1$1,396
This Finnair deal was found by Cheapflights users on 4/1. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/97:10 amBKK - STL
2 stops47h 11mFinnair
Sat 8/164:52 pmSTL - BKK
2 stops48h 38mFinnair
Deal found 4/1$1,461
This Qatar Airways deal was found by Cheapflights users on 4/1. 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 Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/102:30 amBKK - STL
2 stops29h 53mQatar Airways
Mon 8/182:39 pmSTL - BKK
2 stops28h 41mQatar Airways
Deal found 4/1$2,119
This Air Canada deal was found by Cheapflights users on 3/31. 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 8/91:20 amBKK - STL
2 stops54h 40mAir Canada
Sun 8/171:30 pmSTL - BKK
2 stops44h 25mAir Canada
Deal found 3/31$2,298

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 April 1, 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

Fri 5/23

2:40 am-2:07 pm

2 stops47h 27m

Lambert-St Louis

Mon 8/11

7:32 pm-12:10 pm

2 stops28h 38m

$1,070

BangkokSt. Louis

BKK - STL

BKKSTL

Bangkok Suvarnabhumi

Sat 5/24

9:35 am-9:25 pm

2 stops47h 50m

Lambert-St Louis

Mon 8/11

5:41 pm-4:35 am

3 stops46h 54m

$1,396

BangkokSt. Louis

BKK - STL

BKKSTL

Bangkok Suvarnabhumi

Sat 8/9

7:10 am-6:21 pm

2 stops47h 11m

Lambert-St Louis

Sat 8/16

4:52 pm-5:30 am

2 stops48h 38m

$1,461

BangkokSt. Louis

BKK - STL

BKKSTL

Bangkok Suvarnabhumi

Sun 8/10

2:30 am-8:23 pm

2 stops29h 53m

Lambert-St Louis

Mon 8/18

2:39 pm-7:20 am

2 stops28h 41m

$2,119

BangkokSt. Louis

BKK - STL

BKKSTL

Bangkok Suvarnabhumi

Sat 8/9

1:20 am-8:00 pm

2 stops54h 40m

Lambert-St Louis

Sun 8/17

1:30 pm-9:55 pm

2 stops44h 25m

$2,298

BangkokSt. Louis

BKK - STL

BKKSTL

Bangkok Suvarnabhumi

Thu 5/8

6:05 pm-12:36 pm

3 stops30h 31m

$645

BangkokSt. Louis

BKK - STL

BKKSTL

Bangkok Suvarnabhumi

Wed 5/7

6:40 pm-11:04 pm

2 stops40h 24m

$705

BangkokSt. Louis

BKK - STL

BKKSTL

Bangkok Suvarnabhumi

Mon 6/30

8:00 pm-1:37 pm

2 stops29h 37m

$855

Phuket CitySt. Louis

HKT - STL

HKTSTL

Phuket City

Mon 6/30

9:20 am-1:37 pm

2 stops40h 17m

$859

Phuket CitySt. Louis

HKT - STL

HKTSTL

Phuket City

Mon 6/30

9:40 am-7:40 pm

3 stops46h 00m

$903

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/31

Showing 1-10 of 15 results
1
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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 month to book a flight from Thailand to St. Louis?

Currently, August is the cheapest month in which you can book a flight from Thailand to St. Louis (average of $311). Flying from Thailand to St. Louis in March is currently the most expensive (average of $356). 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 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 April 1, 2025.

When flying from Thailand to St. Louis, 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 St. Louis by month

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

In terms of precipitation, rainfall in St. Louis ranges from 2.2 - 4.7 inches per month. May is typically the wettest month, when rainfall can reach 4.7 in. February is typically the driest time to visit St. Louis when rainfall is around 2.2 in.

Temperature in St. Louis by month

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

If weather is an important factor for your trip to St. Louis, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 32.0 F).

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 April 1, 2025.
Japan Airlines
8.3
Very good
1,440 reviews

Entertainment

7.8

Boarding

8.4

Overall

8.3

Crew

8.7

Food

7.7

Comfort

8.2

Reviews

1 / 20
10.0
Excellent

L,Nov 2024

SNA - SEA

Excellent crew, great food and decent audio selection. Seats are wide and have plenty of leg room but could use some more padding.
Japan Airlines
8.3
Very good
1,440 reviews
Japan Airlines
8.3
Very good
1,440 reviews

Entertainment

7.8

Boarding

8.4

Overall

8.3

Crew

8.7

Food

7.7

Comfort

8.2

Reviews

1 / 20
10.0
Excellent

L,Nov 2024

SNA - SEA

Excellent crew, great food and decent audio selection. Seats are wide and have plenty of leg room but could use some more padding.
Emirates
8.0
Very good
3,192 reviews
Japan Airlines
8.3
Very good
1,440 reviews

Entertainment

7.8

Boarding

8.4

Overall

8.3

Crew

8.7

Food

7.7

Comfort

8.2

Reviews

1 / 20
10.0
Excellent

L,Nov 2024

SNA - SEA

Excellent crew, great food and decent audio selection. Seats are wide and have plenty of leg room but could use some more padding.
Delta
8.0
Very good
7,899 reviews
Japan Airlines
8.3
Very good
1,440 reviews

Entertainment

7.8

Boarding

8.4

Overall

8.3

Crew

8.7

Food

7.7

Comfort

8.2

Reviews

1 / 20
10.0
Excellent

L,Nov 2024

SNA - SEA

Excellent crew, great food and decent audio selection. Seats are wide and have plenty of leg room but could use some more padding.
Finnair
7.6
Good
1,267 reviews
Japan Airlines
8.3
Very good
1,440 reviews

Entertainment

7.8

Boarding

8.4

Overall

8.3

Crew

8.7

Food

7.7

Comfort

8.2

Reviews

1 / 20
10.0
Excellent

L,Nov 2024

SNA - SEA

Excellent crew, great food and decent audio selection. Seats are wide and have plenty of leg room but could use some more padding.
Qatar Airways
7.4
Good
3,541 reviews
Japan Airlines
8.3
Very good
1,440 reviews

Entertainment

7.8

Boarding

8.4

Overall

8.3

Crew

8.7

Food

7.7

Comfort

8.2

Reviews

1 / 20
10.0
Excellent

L,Nov 2024

SNA - SEA

Excellent crew, great food and decent audio selection. Seats are wide and have plenty of leg room but could use some more padding.

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.

  • 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 Philippine Airlines ($705), Qatar Airways ($855), and Japan Airlines ($974).

  • 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.

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

    Currently, August is the cheapest month in which you can book a flight from Thailand to St. Louis (average of $311). Flying from Thailand to St. Louis in March is currently the most expensive (average of $356). 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

Traveling to a place near Thailand?

Book flights to Thailand if you plan to visit one of these locations
Fenton
Maryland Heights
Fairview Heights
Collinsville
Wentzville
Eureka
St. Peters
Festus
Glencoe
Alton
Farmington
Chesterfield

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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 April 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
Japan AirlinesCheapest$995Average$1,160FlexibilityNo cancel feeOn-time79%
American AirlinesCheapest$1,222Average$1,263FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$1,294Average$1,455FlexibilityNo cancel feeOn-time69%

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