HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Suvarnabhumi

$575+ 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 3/31. Fares are subject to change and may not be available on all flights or dates of travel.
STL — BKK
Dec 23 — Dec 301
Mon 12/23
Mon 12/30
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from St. Louis to Suvarnabhumi with Cheapflights

1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”
2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.
3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

The best prices from Lambert-St Louis to Bangkok Suvarnabhumi are usually found in September or January, booked 63 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 December 18, 2024.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$1,114
(United)

One-way from

$575
(Travelocity)

Popular in

December

Cheapest in

September

Average price

$1,937
Provider with most accurate pricing for Lambert-St Louis-Bangkok Suvarnabhumi flight deals.
Search Deals
Provider most trusted by Cheapflights users for Lambert-St Louis-Bangkok Suvarnabhumi flights.
Search Deals
From Lambert-St Louis to Bangkok Suvarnabhumi
Search Deals
One-way flight from Lambert-St Louis to Bangkok Suvarnabhumi
Search Deals
High demand for flights, 2% potential price rise
Search Deals
Best time to find cheap flights, 2% potential price drop
Search Deals
Average for round-trip flights in December 2024
Search Deals

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 December 18, 2024.

This oojo deal was found by Cheapflights users on 12/17. 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 12/276:23 pmSTL - BKK
2 stops40h 47mCathay Pacific
Tue 1/77:15 pmBKK - STL
2 stops34h 05mCathay Pacific
Deal found 12/17$2,069
This Korean Air deal was found by Cheapflights users on 12/16. 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.
Mon 12/236:29 amSTL - BKK
2 stops27h 51mMultiple Airlines
Tue 12/311:00 amBKK - STL
2 stops25h 15mMultiple Airlines
Deal found 12/16$2,443
This Priceline deal was found by Cheapflights users on 12/18. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/226:04 amSTL - BKK
2 stops29h 41mKorean Air
Tue 12/249:30 pmBKK - STL
2 stops37h 36mKorean Air
Deal found 12/18$2,499
This Air Canada deal was found by Cheapflights users on 12/17. 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 12/273:50 pmSTL - BKK
2 stops49h 25mAir Canada
Mon 1/61:50 amBKK - STL
2 stops50h 16mAir Canada
Deal found 12/17$2,559
This Finnair deal was found by Cheapflights users on 12/16. 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.
Mon 12/231:45 pmSTL - BKK
2 stops27h 20mFinnair
Thu 1/23:00 pmBKK - STL
2 stops41h 30mFinnair
Deal found 12/16$2,887
This Delta deal was found by Cheapflights users on 12/16. 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.
Mon 12/236:29 amSTL - BKK
2 stops27h 51mDelta
Sat 1/411:15 pmBKK - STL
2 stops37h 25mDelta
Deal found 12/16$3,788
This Qatar Airways deal was found by Cheapflights users on 12/16. 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.
Fri 12/201:45 pmSTL - BKK
2 stops27h 10mQatar Airways
Mon 12/303:00 amBKK - STL
2 stops32h 48mQatar Airways
Deal found 12/16$4,055
This Qantas Airways deal was found by Cheapflights users on 12/16. 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 Qantas Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/255:29 pmSTL - BKK
2 stops33h 41mQantas Airways
Sat 1/46:00 pmBKK - STL
2 stops42h 27mQantas Airways
Deal found 12/16$4,322

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 December 18, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

St. LouisBangkok

STL - BKK

STLBKK

Lambert-St Louis

Thu 2/6

6:15 am-12:05 am

2 stops28h 50m

Bangkok Suvarnabhumi

Mon 2/10

7:10 am-8:43 pm

2 stops26h 33m

$1,114

St. LouisBangkok

STL - BKK

STLBKK

Lambert-St Louis

Mon 1/20

6:03 am-5:00 am

2 stops33h 57m

Bangkok Suvarnabhumi

Wed 1/29

12:55 am-11:03 pm

2 stops35h 08m

$1,116

St. LouisBangkok

STL - BKK

STLBKK

Lambert-St Louis

Mon 2/3

3:50 pm-6:15 am

2 stops49h 25m

Bangkok Suvarnabhumi

Wed 2/19

8:35 am-3:06 pm

2 stops43h 31m

$1,131

St. LouisBangkok

STL - BKK

STLBKK

Lambert-St Louis

Mon 1/27

6:43 am-9:30 pm

2 stops25h 47m

Bangkok Suvarnabhumi

Thu 2/6

1:00 am-11:09 pm

2 stops35h 09m

$1,143

St. LouisBangkok

STL - BKK

STLBKK

Lambert-St Louis

Wed 3/12

6:15 am-4:20 pm

2 stops46h 05m

Bangkok Suvarnabhumi

Tue 3/18

7:35 am-2:23 pm

2 stops42h 48m

$1,263

St. LouisBangkok

STL - BKK

STLBKK

Lambert-St Louis

Thu 3/6

6:15 am-10:35 pm

2 stops27h 20m

Bangkok Suvarnabhumi

Thu 3/20

11:40 am-11:09 pm

2 stops23h 29m

$1,266

St. LouisBangkok

STL - BKK

STLBKK

Lambert-St Louis

Fri 6/6

6:13 pm-5:25 am

2 stops47h 12m

Bangkok Suvarnabhumi

Thu 6/26

7:05 am-6:25 pm

2 stops47h 20m

$1,385

St. LouisBangkok

STL - BKK

STLBKK

Lambert-St Louis

Thu 5/1

1:42 pm-12:45 pm

2 stops35h 03m

Bangkok Suvarnabhumi

Wed 5/7

2:30 am-7:45 pm

2 stops29h 15m

$1,419

St. LouisBangkok

STL - BKK

STLBKK

Lambert-St Louis

Thu 1/16

11:30 am-6:35 am

2 stops30h 05m

Bangkok Suvarnabhumi

Thu 1/23

3:15 pm-2:37 pm

2 stops36h 22m

$1,461

St. LouisBangkok

STL - BKK

STLBKK

Lambert-St Louis

Wed 1/22

1:02 pm-12:20 pm

2 stops34h 18m

Bangkok Suvarnabhumi

Tue 2/4

2:00 pm-5:36 pm

2 stops40h 36m

$1,565

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/17

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 December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*2 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice 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 December 13, 2024.

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 63 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, September is the cheapest month in which you can book a flight from St. Louis to Bangkok Suvarnabhumi Airport (average of $979). Flying from St. Louis to Bangkok Suvarnabhumi Airport in June is currently the most expensive (average of $1,585). 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 December 18, 2024.

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 December 18, 2024.
Read reviews from past customers who have flown Air Canada, Delta and Cathay Pacific from St. Louis to Bangkok. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
ANA
8.4
Very good
839 reviews

Entertainment

7.9

Overall

8.4

Comfort

8.2

Food

7.7

Boarding

8.6

Crew

8.7

Reviews

1 / 10

Your hospitality was excellent, very polite and kind. The meal was tasty and good. The buns were cold. Who likes cold buns?

ANA
8.4
Very good
839 reviews
ANA
8.4
Very good
839 reviews

Entertainment

7.9

Overall

8.4

Comfort

8.2

Food

7.7

Boarding

8.6

Crew

8.7

Reviews

1 / 10

Your hospitality was excellent, very polite and kind. The meal was tasty and good. The buns were cold. Who likes cold buns?

Korean Air
8.4
Very good
1,018 reviews
ANA
8.4
Very good
839 reviews

Entertainment

7.9

Overall

8.4

Comfort

8.2

Food

7.7

Boarding

8.6

Crew

8.7

Reviews

1 / 10

Your hospitality was excellent, very polite and kind. The meal was tasty and good. The buns were cold. Who likes cold buns?

Japan Airlines
8.3
Very good
1,443 reviews
ANA
8.4
Very good
839 reviews

Entertainment

7.9

Overall

8.4

Comfort

8.2

Food

7.7

Boarding

8.6

Crew

8.7

Reviews

1 / 10

Your hospitality was excellent, very polite and kind. The meal was tasty and good. The buns were cold. Who likes cold buns?

Alaska Airlines
8.0
Very good
9,552 reviews
ANA
8.4
Very good
839 reviews

Entertainment

7.9

Overall

8.4

Comfort

8.2

Food

7.7

Boarding

8.6

Crew

8.7

Reviews

1 / 10

Your hospitality was excellent, very polite and kind. The meal was tasty and good. The buns were cold. Who likes cold buns?

Delta
8.0
Very good
8,604 reviews
ANA
8.4
Very good
839 reviews

Entertainment

7.9

Overall

8.4

Comfort

8.2

Food

7.7

Boarding

8.6

Crew

8.7

Reviews

1 / 10

Your hospitality was excellent, very polite and kind. The meal was tasty and good. The buns were cold. Who likes cold buns?

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 11 different airlines.

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

    United Airlines, at $1,114, was found to be the cheapest airline from St. Louis to Bangkok Suvarnabhumi Airport.Alternate airlines to your destination round-trip include Japan Airlines and Air Canada. You may be able to fly from St. Louis to Bangkok Suvarnabhumi Airport for 27% 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 Japan Airlines, which is currently one of the cheapest options available, starting at $603. United Airlines flights start at $611 while deals on Delta start at $617 one-way.

  • Where are the most common layover locations when flying from St. Louis to Bangkok Suvarnabhumi Airport?

    The most popular layover on flights from St. Louis to Bangkok Suvarnabhumi Airport is Doha.

  • What are some popular things to do or see while on a layover in Doha?

    Most Doha visitors opt to spend their time experiencing Museum of Islamic Art, Aspire Tower, and Katara Cultural Village. Travelers on a layover in Doha can visit Museum of Islamic Art, Aspire Tower, and Katara Cultural Village, by traveling 5.2 mi, 10.6 mi, and 8.7 mi, respectively after landing at Doha Hamad Intl. Those landing in Doha looking to spend some time exploring during their layover can rent a car for about $36 per day.

  • Where are the least popular layover locations for St. Louis to Bangkok Suvarnabhumi Airport flights?

    The least popular layover on flights from St. Louis to Bangkok Suvarnabhumi Airport is Chicago.

  • 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, September is the cheapest month in which you can book a flight from St. Louis to Bangkok Suvarnabhumi Airport (average of $979). Flying from St. Louis to Bangkok Suvarnabhumi Airport in June is currently the most expensive (average of $1,585). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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
Kansas City to Don Mueang Intl flights

Top 10 airlines flying from St. Louis to Suvarnabhumi

Discover the top 10 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 December 18, 2024.
AirlineCheapestAverageFlexibilityOn-time
Japan AirlinesCheapest$1,084Average$1,196FlexibilityNo cancel feeOn-time79%
United AirlinesCheapest$1,113Average$1,175FlexibilityNo cancel feeOn-time69%
ANACheapest$1,125Average$1,396FlexibilityNo cancel feeOn-time80%
American AirlinesCheapest$1,149Average$1,546FlexibilityNo cancel feeOn-time71%
DeltaCheapest$1,149Average$1,347FlexibilityNo cancel feeOn-timeN/A
Turkish AirlinesCheapest$1,158Average$1,347FlexibilityNo cancel feeOn-time77%
Air CanadaCheapest$1,226Average$1,638FlexibilityNo cancel feeOn-time67%
FinnairCheapest$1,259Average$1,675FlexibilityNo cancel feeOn-time76%
Cathay PacificCheapest$1,265Average$1,540FlexibilityNo cancel feeOn-time72%
Qatar AirwaysCheapest$1,319Average$1,380FlexibilityNo cancel feeOn-time68%
100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.