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Suvarnabhumi

$497+ Cheap flights from St. Louis (STL) to Suvarnabhumi (BKK)

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 3/30. Fares are subject to change and may not be available on all flights or dates of travel.
STL — BKK
Feb 25 — Mar 41
Tue 2/25
Tue 3/4
1 adult, Economy
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The best prices from Lambert-St Louis to Bangkok Suvarnabhumi are usually found in February or January, booked 76 days in advance, depart on a Monday or Saturday and return on a Thursday

Cheap flight deals from St. Louis to Suvarnabhumi

Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to Suvarnabhumi (BKK). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated February 20, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$1,104
(Delta)

One-way from

$497
(oojo)

Popular in

December

Cheapest in

February

Average price

$1,184
Provider with most accurate pricing for Lambert-St Louis-Bangkok Suvarnabhumi flight deals.
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Provider most trusted by Cheapflights users for Lambert-St Louis-Bangkok Suvarnabhumi flights.
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From Lambert-St Louis to Bangkok Suvarnabhumi
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One-way flight from Lambert-St Louis to Bangkok Suvarnabhumi
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Highest demand for flights based on searches. 0% potential increase in price ($13 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($43 potential savings vs. average RT price).
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Average for round-trip flights in February 2025
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Find flight deals from St. Louis to Suvarnabhumi

Cheapest flights from St. Louis to Suvarnabhumi
Explore the most affordable flight options available from St. Louis to Suvarnabhumi. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 20, 2025.

This Ovago deal was found by Cheapflights users on 2/19. 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.
Wed 9/247:00 amSTL - BKK
2 stops48h 20mQatar Airways
Tue 12/93:00 amBKK - STL
2 stops33h 56mQatar Airways
Deal found 2/19$1,068
This Gurufare deal was found by Cheapflights users on 2/19. 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 8/281:27 pmSTL - BKK
2 stops27h 08mANA
Wed 9/39:35 pmBKK - STL
2 stops31h 00mANA
Deal found 2/19$1,090
This Gurufare deal was found by Cheapflights users on 2/19. 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.
Tue 9/309:50 amSTL - BKK
2 stops25h 10mJapan Airlines
Mon 10/612:25 amBKK - STL
2 stops34h 28mJapan Airlines
Deal found 2/19$1,100
This Delta deal was found by Cheapflights users on 2/19. 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.
Wed 3/266:50 amSTL - BKK
2 stops26h 40mDelta
Wed 4/99:40 pmBKK - STL
2 stops37h 24mDelta
Deal found 2/19$1,104
This United Airlines deal was found by Cheapflights users on 2/18. 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 12/410:30 amSTL - BKK
2 stops29h 40mUnited Airlines
Thu 12/189:25 amBKK - STL
2 stops24h 45mUnited Airlines
Deal found 2/18$1,110
This American Airlines deal was found by Cheapflights users on 2/19. 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 2/267:04 amSTL - BKK
2 stops27h 31mAmerican Airlines
Wed 3/58:05 amBKK - STL
2 stops28h 03mAmerican Airlines
Deal found 2/19$1,116
This Fareboom deal was found by Cheapflights users on 2/19. 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 Fareboom is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/196:15 amSTL - BKK
2 stops29h 55mCathay Pacific
Wed 3/2611:40 amBKK - STL
2 stops23h 29mCathay Pacific
Deal found 2/19$1,137
This Travelocity deal was found by Cheapflights users on 2/20. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/273:21 pmSTL - BKK
2 stops29h 29mMultiple Airlines
Thu 3/65:50 pmBKK - STL
2 stops33h 35mMultiple Airlines
Deal found 2/20$1,199
This Expedia deal was found by Cheapflights users on 2/19. 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.
Wed 3/196:00 amSTL - BKK
2 stops30h 45mKorean Air
Tue 3/251:00 amBKK - STL
2 stops34h 26mKorean Air
Deal found 2/19$1,260
This Air Canada deal was found by Cheapflights users on 2/19. 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.
Sun 4/133:30 pmSTL - BKK
2 stops49h 45mAir Canada
Wed 4/238:10 amBKK - STL
2 stops42h 39mAir Canada
Deal found 2/19$1,269

Find flights from St. Louis to Suvarnabhumi within your budget

Customize your flight search to find flights from St. Louis to Suvarnabhumi 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 February 20, 2025.

Fly from

St. Louis

Fly to

Suvarnabhumi

Route

Depart

Return

Price

St. LouisBangkok

STL - BKK

STLBKK

Lambert-St Louis

Wed 3/26

6:50 am-9:30 pm

2 stops26h 40m

Bangkok Suvarnabhumi

Wed 4/9

9:40 pm-11:04 pm

2 stops37h 24m

$1,104

St. LouisBangkok

STL - BKK

STLBKK

Lambert-St Louis

Wed 2/26

7:04 am-11:35 pm

2 stops27h 31m

Bangkok Suvarnabhumi

Wed 3/5

8:05 am-11:08 pm

2 stops28h 03m

$1,116

St. LouisBangkok

STL - BKK

STLBKK

Lambert-St Louis

Tue 2/25

7:00 am-11:35 pm

2 stops27h 35m

Bangkok Suvarnabhumi

Sun 3/2

12:55 am-11:08 pm

2 stops35h 13m

$1,124

St. LouisBangkok

STL - BKK

STLBKK

Lambert-St Louis

Wed 3/19

6:15 am-12:10 am

2 stops29h 55m

Bangkok Suvarnabhumi

Wed 3/26

11:40 am-11:09 pm

2 stops23h 29m

$1,137

St. LouisBangkok

STL - BKK

STLBKK

Lambert-St Louis

Thu 2/27

3:21 pm-9:50 am

2 stops29h 29m

Bangkok Suvarnabhumi

Thu 3/6

5:50 pm-2:25 pm

2 stops33h 35m

$1,199

St. LouisBangkok

STL - BKK

STLBKK

Lambert-St Louis

Wed 3/19

6:00 am-12:45 am

2 stops30h 45m

Bangkok Suvarnabhumi

Tue 3/25

1:00 am-11:26 pm

2 stops34h 26m

$1,260

St. LouisBangkok

STL - BKK

STLBKK

Lambert-St Louis

Sun 4/13

3:30 pm-5:15 am

2 stops49h 45m

Bangkok Suvarnabhumi

Wed 4/23

8:10 am-2:49 pm

2 stops42h 39m

$1,269

St. LouisBangkok

STL - BKK

STLBKK

Lambert-St Louis

Mon 4/7

6:44 am-6:15 am

2 stops35h 31m

Bangkok Suvarnabhumi

Wed 4/16

8:40 am-10:20 pm

2 stops49h 40m

$1,338

St. LouisBangkok

STL - BKK

STLBKK

Lambert-St Louis

Sun 2/23

6:30 am-5:10 am

2 stops33h 40m

Bangkok Suvarnabhumi

Tue 2/25

10:50 pm-12:12 pm

2 stops50h 22m

$1,625

St. LouisBangkok

STL - BKK

STLBKK

Lambert-St Louis

Sat 4/5

6:00 pm-5:30 am

2 stops47h 30m

Bangkok Suvarnabhumi

Fri 4/25

7:05 am-7:29 pm

2 stops48h 24m

$5,614

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/18

Showing 1-10 of 16 results
1
2

Compare providers for flights from St. Louis to Suvarnabhumi

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from St. Louis to Suvarnabhumi in February.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*1 star
FlightHubPrice Accuracy3 starsTrust Score*3 stars
CheapfaremartPrice Accuracy-Trust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on St. Louis-Bangkok Suvarnabhumi Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on St. Louis-Bangkok Suvarnabhumi Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from St. Louis-Bangkok Suvarnabhumi Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on St. Louis-Bangkok Suvarnabhumi Airport flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for St. Louis-Bangkok Suvarnabhumi Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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

Have a flexible travel schedule? Discover the best time to fly to Suvarnabhumi 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.

Travel insights for flights from St. Louis to Suvarnabhumi

Get recent, data-driven insights about flights from St. Louis to Suvarnabhumi including ideal travel times, pricing trends, and more.

How far ahead should I book a flight from St. Louis to Bangkok Suvarnabhumi Airport?

Use this chart to determine the optimal time to book a round-trip flight from St. Louis to Suvarnabhumi. Price data was last updated on February 14, 2025.

To ensure you get the cheapest price possible for a flight from St. Louis to Bangkok Suvarnabhumi Airport, you should look to book at least 76 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from St. Louis to Bangkok Suvarnabhumi Airport?

Currently, February is the cheapest month in which you can book a flight from St. Louis to Bangkok Suvarnabhumi Airport (average of $976). Flying from St. Louis to Bangkok Suvarnabhumi Airport in June is currently the most expensive (average of $1,580). 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 BKK?

Find hourly flight availability from St. Louis to Suvarnabhumi. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated February 20, 2025.

It’s typically best to fly out from St. Louis to Bangkok Suvarnabhumi Airport in the morning. Doing so could potentially save you 24% on the flight price compared to flying at noon, which is usually more expensive.

What is the cheapest day to fly from St. Louis to Bangkok Suvarnabhumi Airport?

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

Travelers seeking maximum savings on their St. Louis to Bangkok Suvarnabhumi Airport flight should consider departing on Monday mornings when fares are most often at their lowest. Friday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Rainfall in Suvarnabhumi by month

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

In terms of precipitation, rainfall in Bangkok Suvarnabhumi Airport 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 Bangkok Suvarnabhumi Airport when rainfall is around 0.4 in.

Temperature in Suvarnabhumi by month

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

If weather is an important factor for your trip to Bangkok Suvarnabhumi Airport, 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 Suvarnabhumi

Get insights into the airlines that provide service to Suvarnabhumi. 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 Suvarnabhumi. Reviews last updated February 20, 2025.
Korean Air
8.4
Very good
1,037 reviews

Crew

8.7

Food

8.1

Comfort

8.3

Overall

8.4

Boarding

8.5

Entertainment

8.2

Reviews

1 / 20

6.0
Good

Anonymous,Feb 2025

ATL - SBN

Regional jets are small and uncomfortable. When flying in or out of South Bend airport, that's usually what I'm on. It's the price one pays for the great convenience of using a small airport (cheap parking, no lines). The CRJ900 has engines attached to the fuselage near the rear of the plane. So, very loud in the back of the plane, and I happened to have the far back corner that also had no window. Oh well, a short flight and pleasant neighbor and cheerful attendant.

Korean Air
8.4
Very good
1,037 reviews
Korean Air
8.4
Very good
1,037 reviews

Crew

8.7

Food

8.1

Comfort

8.3

Overall

8.4

Boarding

8.5

Entertainment

8.2

Reviews

1 / 20

6.0
Good

Anonymous,Feb 2025

ATL - SBN

Regional jets are small and uncomfortable. When flying in or out of South Bend airport, that's usually what I'm on. It's the price one pays for the great convenience of using a small airport (cheap parking, no lines). The CRJ900 has engines attached to the fuselage near the rear of the plane. So, very loud in the back of the plane, and I happened to have the far back corner that also had no window. Oh well, a short flight and pleasant neighbor and cheerful attendant.

ANA
8.4
Very good
842 reviews
Korean Air
8.4
Very good
1,037 reviews

Crew

8.7

Food

8.1

Comfort

8.3

Overall

8.4

Boarding

8.5

Entertainment

8.2

Reviews

1 / 20

6.0
Good

Anonymous,Feb 2025

ATL - SBN

Regional jets are small and uncomfortable. When flying in or out of South Bend airport, that's usually what I'm on. It's the price one pays for the great convenience of using a small airport (cheap parking, no lines). The CRJ900 has engines attached to the fuselage near the rear of the plane. So, very loud in the back of the plane, and I happened to have the far back corner that also had no window. Oh well, a short flight and pleasant neighbor and cheerful attendant.

Japan Airlines
8.3
Very good
1,440 reviews
Korean Air
8.4
Very good
1,037 reviews

Crew

8.7

Food

8.1

Comfort

8.3

Overall

8.4

Boarding

8.5

Entertainment

8.2

Reviews

1 / 20

6.0
Good

Anonymous,Feb 2025

ATL - SBN

Regional jets are small and uncomfortable. When flying in or out of South Bend airport, that's usually what I'm on. It's the price one pays for the great convenience of using a small airport (cheap parking, no lines). The CRJ900 has engines attached to the fuselage near the rear of the plane. So, very loud in the back of the plane, and I happened to have the far back corner that also had no window. Oh well, a short flight and pleasant neighbor and cheerful attendant.

Delta
8.0
Very good
8,220 reviews
Korean Air
8.4
Very good
1,037 reviews

Crew

8.7

Food

8.1

Comfort

8.3

Overall

8.4

Boarding

8.5

Entertainment

8.2

Reviews

1 / 20

6.0
Good

Anonymous,Feb 2025

ATL - SBN

Regional jets are small and uncomfortable. When flying in or out of South Bend airport, that's usually what I'm on. It's the price one pays for the great convenience of using a small airport (cheap parking, no lines). The CRJ900 has engines attached to the fuselage near the rear of the plane. So, very loud in the back of the plane, and I happened to have the far back corner that also had no window. Oh well, a short flight and pleasant neighbor and cheerful attendant.

Finnair
7.6
Good
1,273 reviews
Korean Air
8.4
Very good
1,037 reviews

Crew

8.7

Food

8.1

Comfort

8.3

Overall

8.4

Boarding

8.5

Entertainment

8.2

Reviews

1 / 20

6.0
Good

Anonymous,Feb 2025

ATL - SBN

Regional jets are small and uncomfortable. When flying in or out of South Bend airport, that's usually what I'm on. It's the price one pays for the great convenience of using a small airport (cheap parking, no lines). The CRJ900 has engines attached to the fuselage near the rear of the plane. So, very loud in the back of the plane, and I happened to have the far back corner that also had no window. Oh well, a short flight and pleasant neighbor and cheerful attendant.

Related info for your journey

Find useful and relevant information for your journey from St. Louis to Suvarnabhumi. 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 Bangkok Suvarnabhumi?

    Located just 12.7 mi from the city center, Lambert-St Louis is the airport most travelers will use when flying to Bangkok Suvarnabhumi from St. Louis. Booking flights from Lambert-St Louis (STL) to Bangkok Suvarnabhumi should be relatively easy as there are 0 daily outbound flights to Bangkok Suvarnabhumi from 9 different airlines.

  • What are the cheapest airlines flying from St. Louis to Bangkok Suvarnabhumi Airport round-trip?

    Delta, at $1,104, was found to be the cheapest airline from St. Louis to Bangkok Suvarnabhumi Airport.Alternate airlines to your destination round-trip include American Airlines and Japan Airlines. You may be able to fly from St. Louis to Bangkok Suvarnabhumi Airport for 24% less than the average price by searching for these airlines.

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

    To fly one-way, consider booking your trip with Qatar Airways, which is currently one of the cheapest options available, starting at $497. United Airlines flights start at $612 while deals on Air Canada start at $943 one-way.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from St. Louis to Suvarnabhumi 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 Bangkok Suvarnabhumi Airport?

    Currently, February is the cheapest month in which you can book a flight from St. Louis to Bangkok Suvarnabhumi Airport (average of $976). Flying from St. Louis to Bangkok Suvarnabhumi Airport in June is currently the most expensive (average of $1,580). 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 St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
Chonburi
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Cha-am
Kanchanaburi
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Alternative routes for St. Louis to Suvarnabhumi

See prices for flight routes from nearby airports that may be better suited for you.
Kansas City to Suvarnabhumi flights
Springfield to Suvarnabhumi flights
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Top 9 airlines flying from St. Louis to Suvarnabhumi

Discover the top 9 airlines that operate flights from St. Louis to Suvarnabhumi. 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 February 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$244Average$1,197FlexibilityNo cancel feeOn-time71%
Japan AirlinesCheapest$1,080Average$1,191FlexibilityNo cancel feeOn-time79%
DeltaCheapest$1,104Average$1,315FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$1,113Average$1,158FlexibilityNo cancel feeOn-time69%
Turkish AirlinesCheapest$1,116Average$1,320FlexibilityNo cancel feeOn-time77%
ANACheapest$1,125Average$1,320FlexibilityNo cancel feeOn-time80%
FinnairCheapest$1,249Average$1,579FlexibilityNo cancel feeOn-time76%
Cathay PacificCheapest$1,265Average$1,491FlexibilityNo cancel feeOn-time72%
Qatar AirwaysCheapest$1,272Average$1,380FlexibilityNo cancel feeOn-time68%
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