HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Suvarnabhumi

$602+ 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 2/1. Fares are subject to change and may not be available on all flights or dates of travel.
STL — BKK
janv. 21 — janv. 281
mar. 1/21
mar. 1/28
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 January or September, 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 janvier 16, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$993
(Expedia)

One-way from

$602
(Kiwi.com)

Popular in

June

Cheapest in

January

Average price

$1,202
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, 16% potential price rise
Search Deals
Best time to find cheap flights, 2% potential price drop
Search Deals
Average for round-trip flights in January 2025
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 janvier 16, 2025.

This Expedia deal was found by Cheapflights users on 1/16. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 3/37:00 amSTL - BKK
2 stops28h 20mMultiple Airlines
dim. 3/91:50 amBKK - STL
2 stops34h 09mMultiple Airlines
Deal found 1/16$993
This Qatar Airways deal was found by Cheapflights users on 1/16. 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.
dim. 3/306:44 amSTL - BKK
2 stops35h 31mQatar Airways
mar. 4/229:05 amBKK - STL
2 stops50h 54mQatar Airways
Deal found 1/16$1,068
This Delta deal was found by Cheapflights users on 1/16. 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.
mar. 4/111:19 amSTL - BKK
2 stops22h 26mDelta
mar. 4/229:50 amBKK - STL
2 stops25h 40mDelta
Deal found 1/16$1,104
This United Airlines deal was found by Cheapflights users on 1/15. 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.
mar. 1/217:00 amSTL - BKK
2 stops28h 05mUnited Airlines
mar. 1/287:10 amBKK - STL
2 stops28h 10mUnited Airlines
Deal found 1/15$1,114
This Ovago deal was found by Cheapflights users on 1/15. 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.
lun. 2/105:40 amSTL - BKK
2 stops34h 25mJapan Airlines
mar. 3/48:05 amBKK - STL
2 stops52h 03mJapan Airlines
Deal found 1/15$1,190
This KAYAK deal was found by Cheapflights users on 1/15. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sam. 1/258:00 amSTL - BKK
2 stops33h 35mANA
jeu. 1/3010:50 pmBKK - STL
2 stops31h 46mANA
Deal found 1/15$1,222
This Korean Air deal was found by Cheapflights users on 1/15. 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.
mar. 2/46:00 amSTL - BKK
2 stops26h 30mKorean Air
mar. 2/119:40 amBKK - STL
2 stops26h 29mKorean Air
Deal found 1/15$1,259
This FlightHub deal was found by Cheapflights users on 1/14. 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.
lun. 2/106:03 amSTL - BKK
2 stops27h 32mCathay Pacific
lun. 2/176:40 amBKK - STL
2 stops29h 28mCathay Pacific
Deal found 1/14$1,377
This KAYAK deal was found by Cheapflights users on 1/16. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ven. 6/66:13 pmSTL - BKK
2 stops47h 17mFinnair
mar. 6/177:05 amBKK - STL
2 stops28h 12mFinnair
Deal found 1/16$1,422

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 janvier 16, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

St. LouisBangkok

STL - BKK

STLBKK

Lambert-St Louis

lun. 3/3

7:00 am-12:20 am

2 stops28h 20m

Bangkok Suvarnabhumi

dim. 3/9

1:50 am-11:59 pm

2 stops34h 09m

$993

St. LouisBangkok

STL - BKK

STLBKK

Lambert-St Louis

dim. 3/30

6:44 am-6:15 am

2 stops35h 31m

Bangkok Suvarnabhumi

mar. 4/22

9:05 am-11:59 pm

2 stops50h 54m

$1,068

St. LouisBangkok

STL - BKK

STLBKK

Lambert-St Louis

mar. 4/1

11:19 am-9:45 pm

2 stops22h 26m

Bangkok Suvarnabhumi

mar. 4/22

9:50 am-11:30 pm

2 stops25h 40m

$1,104

St. LouisBangkok

STL - BKK

STLBKK

Lambert-St Louis

lun. 2/3

6:15 am-12:05 am

2 stops28h 50m

Bangkok Suvarnabhumi

lun. 2/10

7:10 am-2:37 pm

2 stops44h 27m

$1,121

St. LouisBangkok

STL - BKK

STLBKK

Lambert-St Louis

lun. 2/10

5:40 am-5:05 am

2 stops34h 25m

Bangkok Suvarnabhumi

mar. 3/4

8:05 am-11:08 pm

2 stops52h 03m

$1,190

St. LouisBangkok

STL - BKK

STLBKK

Lambert-St Louis

jeu. 1/30

6:00 am-9:30 pm

2 stops26h 30m

Bangkok Suvarnabhumi

sam. 5/31

9:50 am-9:33 pm

2 stops23h 43m

$1,299

St. LouisBangkok

STL - BKK

STLBKK

Lambert-St Louis

ven. 6/6

6:13 pm-5:30 am

2 stops47h 17m

Bangkok Suvarnabhumi

mar. 6/17

7:05 am-11:17 pm

2 stops28h 12m

$1,422

St. LouisBangkok

STL - BKK

STLBKK

Lambert-St Louis

ven. 1/31

6:03 am-12:10 am

2 stops29h 07m

Bangkok Suvarnabhumi

ven. 2/7

3:05 pm-4:20 pm

2 stops38h 15m

$1,513

St. LouisBangkok

STL - BKK

STLBKK

Lambert-St Louis

dim. 3/2

3:45 pm-7:35 am

2 stops26h 50m

Bangkok Suvarnabhumi

sam. 3/8

3:10 am-9:15 pm

2 stops31h 05m

$3,570

St. LouisBangkok

STL - BKK

STLBKK

Lambert-St Louis

dim. 2/2

7:00 am-11:35 pm

2 stops27h 35m

Bangkok Suvarnabhumi

sam. 2/8

8:05 am-10:56 pm

3 stops27h 51m

$4,423

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/16

Showing 1-10 of 18 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 January.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
CheapfaremartPrice Accuracy-Trust Score*1 star

*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 AranGrant to be most consistent on Cheapflights vs. AranGrant Users can find the same prices on St. Louis-Bangkok Suvarnabhumi Airport flight deals on Cheapflights vs. AranGrant >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 AranGrant the most. AranGrant 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 January 10, 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 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, October is the cheapest month in which you can book a flight from St. Louis to Bangkok Suvarnabhumi Airport (average of $996). 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 janvier 16, 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 janvier 16, 2025.
Read reviews from past customers who have flown United Airlines, Japan Airlines and Qatar Airways 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.
Korean Air
8.5
Very good
1,034 reviews

Overall

8.5

Comfort

8.3

Entertainment

8.2

Food

8.1

Crew

8.7

Boarding

8.5

Reviews

1 / 10

Flight was short, so we did not get food, but that is expected. Only have entertainment a fair rating because no wifi is provided onboard. Good flight overall.

Korean Air
8.5
Very good
1,034 reviews
Korean Air
8.5
Very good
1,034 reviews

Overall

8.5

Comfort

8.3

Entertainment

8.2

Food

8.1

Crew

8.7

Boarding

8.5

Reviews

1 / 10

Flight was short, so we did not get food, but that is expected. Only have entertainment a fair rating because no wifi is provided onboard. Good flight overall.

ANA
8.4
Very good
847 reviews
Korean Air
8.5
Very good
1,034 reviews

Overall

8.5

Comfort

8.3

Entertainment

8.2

Food

8.1

Crew

8.7

Boarding

8.5

Reviews

1 / 10

Flight was short, so we did not get food, but that is expected. Only have entertainment a fair rating because no wifi is provided onboard. Good flight overall.

Japan Airlines
8.3
Very good
1,448 reviews
Korean Air
8.5
Very good
1,034 reviews

Overall

8.5

Comfort

8.3

Entertainment

8.2

Food

8.1

Crew

8.7

Boarding

8.5

Reviews

1 / 10

Flight was short, so we did not get food, but that is expected. Only have entertainment a fair rating because no wifi is provided onboard. Good flight overall.

Alaska Airlines
8.0
Very good
9,681 reviews
Korean Air
8.5
Very good
1,034 reviews

Overall

8.5

Comfort

8.3

Entertainment

8.2

Food

8.1

Crew

8.7

Boarding

8.5

Reviews

1 / 10

Flight was short, so we did not get food, but that is expected. Only have entertainment a fair rating because no wifi is provided onboard. Good flight overall.

Delta
8.0
Very good
8,511 reviews
Korean Air
8.5
Very good
1,034 reviews

Overall

8.5

Comfort

8.3

Entertainment

8.2

Food

8.1

Crew

8.7

Boarding

8.5

Reviews

1 / 10

Flight was short, so we did not get food, but that is expected. Only have entertainment a fair rating because no wifi is provided onboard. Good flight overall.

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?

    Qatar Airways, at $1,068, was found to be the cheapest airline from St. Louis to Bangkok Suvarnabhumi Airport.Alternate airlines to your destination round-trip include Delta and United Airlines. You may be able to fly from St. Louis to Bangkok Suvarnabhumi Airport for 29% 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 $604. United Airlines flights start at $611 while deals on ANA start at $648 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, Katara Cultural Village, and Aspire Tower. Travelers on a layover in Doha can visit Museum of Islamic Art, Katara Cultural Village, and Aspire Tower, by traveling 5.2 mi, 8.7 mi, and 10.6 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 $30 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, October is the cheapest month in which you can book a flight from St. Louis to Bangkok Suvarnabhumi Airport (average of $996). 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

Traveling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
Chonburi
Cha-am
Kanchanaburi
Phetchaburi
Pak Chong
Sattahip
Ko Lan

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 janvier 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$244Average$1,311FlexibilityNo cancel feeOn-time71%
Japan AirlinesCheapest$1,084Average$1,196FlexibilityNo cancel feeOn-time79%
United AirlinesCheapest$1,113Average$1,174FlexibilityNo cancel feeOn-time69%
ANACheapest$1,125Average$1,417FlexibilityNo cancel feeOn-time80%
DeltaCheapest$1,149Average$1,343FlexibilityNo cancel feeOn-timeN/A
Turkish AirlinesCheapest$1,158Average$1,347FlexibilityNo cancel feeOn-time77%
Air CanadaCheapest$1,176Average$1,638FlexibilityNo cancel feeOn-time67%
FinnairCheapest$1,249Average$1,674FlexibilityNo cancel feeOn-time76%
Cathay PacificCheapest$1,265Average$1,500FlexibilityNo cancel feeOn-time72%
Qatar AirwaysCheapest$1,314Average$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.