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$1,088+ Cheap flights from St. Louis (STL) to Bangkok

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/10. Fares are subject to change and may not be available on all flights or dates of travel.
STL — BKK
Dec 7 — Dec 141
Sat 12/7
Sat 12/14
1 adult, Economy
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The best prices from Lambert-St Louis to Bangkok are usually found in September or October, booked 63 days in advance, depart on a Friday or Tuesday and return on a Thursday

Cheap flight deals from St. Louis to Bangkok

Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to Bangkok (TH1). 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 2, 2024.

Popular in

December

Cheapest in

September

Average price

$1,997

Round-trip from

$1,092
(FlightHub)
High demand for flights, 22% potential price rise
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Best time to find cheap flights, 20% potential price drop
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Average for round-trip flights in December 2024
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From Lambert-St Louis to Bangkok
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Find flight deals from St. Louis to Bangkok

Cheapest flights from St. Louis to Bangkok
Explore the most affordable flight options available from St. Louis to Bangkok. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 2, 2024.

This oojo deal was found by Cheapflights users on 12/1. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/23:44 pmSTL - BKK
2 stops43h 26mCathay Pacific
Mon 12/911:40 amBKK - STL
2 stops25h 32mCathay Pacific
Deal found 12/1$1,351
This Priceline deal was found by Cheapflights users on 12/1. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/46:17 amSTL - BKK
2 stops28h 53mMultiple Airlines
Fri 12/68:35 amBKK - STL
2 stops43h 31mMultiple Airlines
Deal found 12/1$1,456
This StudentUniverse deal was found by Cheapflights users on 12/1. 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 StudentUniverse is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/21:45 pmSTL - BKK
2 stops27h 10mQatar Airways
Sun 12/82:00 amBKK - STL
2 stops34h 59mQatar Airways
Deal found 12/1$1,926
This Air Canada deal was found by Cheapflights users on 12/1. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/13:50 pmSTL - BKK
2 stops49h 25mAir Canada
Wed 12/111:50 amBKK - STL
2 stops50h 16mAir Canada
Deal found 12/1$1,981
This United Airlines deal was found by Cheapflights users on 12/2. 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.
Mon 12/167:00 amSTL - BKK
3 stops52h 05mUnited Airlines
Wed 3/197:10 amBKK - STL
2 stops26h 24mUnited Airlines
Deal found 12/2$2,425
This Delta deal was found by Cheapflights users on 11/30. 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.
Sat 12/216:40 pmSTL - BKK
2 stops39h 40mDelta
Sun 12/291:00 amBKK - STL
2 stops28h 59mDelta
Deal found 11/30$3,232
This Korean Air deal was found by Cheapflights users on 11/30. 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.
Fri 12/206:29 amSTL - BKK
2 stops27h 51mKorean Air
Thu 1/29:40 amBKK - STL
2 stops25h 26mKorean Air
Deal found 11/30$4,317
This American Airlines deal was found by Cheapflights users on 12/1. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/317:04 amSTL - BKK
2 stops27h 31mAmerican Airlines
Tue 1/79:55 amBKK - STL
3 stops27h 02mAmerican Airlines
Deal found 12/1$11,308

Find flights from St. Louis to Bangkok within your budget

Customize your flight search to find flights from St. Louis to Bangkok 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 2,650,959 searches. Data last updated December 2, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

St. LouisBangkok

STL - BKK

STLBKK

Lambert-St Louis

Thu 4/10

6:15 am-4:35 am

2 stops34h 20m

Bangkok Suvarnabhumi

Wed 4/16

9:35 pm-2:36 pm

2 stops29h 01m

$1,088

St. LouisBangkok

STL - BKK

STLBKK

Lambert-St Louis

Mon 2/3

7:00 am-5:05 am

2 stops33h 05m

Bangkok Suvarnabhumi

Wed 2/19

9:55 am-11:08 pm

2 stops50h 13m

$1,092

St. LouisBangkok

STL - BKK

STLBKK

Lambert-St Louis

Tue 3/11

6:45 am-11:20 pm

2 stops28h 35m

Bangkok Suvarnabhumi

Mon 3/24

11:15 pm-10:13 pm

2 stops34h 58m

$1,103

St. LouisBangkok

STL - BKK

STLBKK

Lambert-St Louis

Tue 3/18

7:00 am-12:20 am

2 stops29h 20m

Bangkok Suvarnabhumi

Tue 3/25

1:50 am-11:59 pm

2 stops34h 09m

$1,104

St. LouisBangkok

STL - BKK

STLBKK

Lambert-St Louis

Thu 2/6

7:00 am-12:05 am

2 stops28h 05m

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 2/3

6:00 am-12:45 am

2 stops29h 45m

Bangkok Suvarnabhumi

Tue 2/18

1:00 am-10:12 pm

2 stops34h 12m

$1,259

St. LouisBangkok

STL - BKK

STLBKK

Lambert-St Louis

Tue 1/14

5:40 am-12:10 am

2 stops29h 30m

Bangkok Suvarnabhumi

Tue 1/28

6:40 am-4:20 pm

2 stops22h 40m

$1,266

St. LouisBangkok

STL - BKK

STLBKK

Lambert-St Louis

Fri 5/2

7:51 pm-12:45 pm

2 stops28h 54m

Bangkok Suvarnabhumi

Wed 5/7

2:30 am-11:23 pm

2 stops32h 53m

$1,351

St. LouisBangkok

STL - BKK

STLBKK

Lambert-St Louis

Sun 1/19

12:45 pm-3:25 pm

2 stops37h 40m

Bangkok Suvarnabhumi

Sat 2/15

1:45 am-10:03 pm

2 stops33h 18m

$1,642

St. LouisBangkok

STL - BKK

STLBKK

Lambert-St Louis

Sat 5/24

1:58 pm-5:25 am

2 stops27h 27m

Bangkok Suvarnabhumi

Sat 6/21

7:05 am-11:56 pm

2 stops28h 51m

$1,803

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/2

Showing 1-10 of 14 results
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Best time to book a flight from St. Louis to Bangkok

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

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

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

Use this chart to determine the optimal time to book a round-trip flight from St. Louis to Bangkok. Price data was last updated on November 22, 2024.

Booking 63 days in advance of your planned departure date is, on average, the best time to get cheap flights from St. Louis to Bangkok. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Currently, September is the cheapest month in which you can book a flight from St. Louis to Bangkok (average of $979). Flying from St. Louis to Bangkok 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 Bangkok. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 2, 2024.

It’s typically best to fly out from St. Louis to Bangkok in the morning. Doing so could potentially save you 23% 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?

Use this chart to determine the cheapest time to fly round-trip from St. Louis to Bangkok. Price data was last updated on November 24, 2024.

Travelers seeking maximum savings on their St. Louis to Bangkok flight should consider departing on Saturday 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 Bangkok by month

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

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

Temperature in Bangkok by month

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

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

Get insights into the airlines that provide service to Bangkok. 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 Bangkok. Reviews last updated December 2, 2024.
Korean Air
8.5
Very good
1,019 reviews

Boarding

8.5

Food

8.1

Entertainment

8.2

Overall

8.5

Comfort

8.3

Crew

8.7

Reviews

1 / 10

Ticket counter agent need to be more patient. Food was not good. It was not good like in the past.. Cabin was too hot.

Korean Air
8.5
Very good
1,019 reviews
Korean Air
8.5
Very good
1,019 reviews

Boarding

8.5

Food

8.1

Entertainment

8.2

Overall

8.5

Comfort

8.3

Crew

8.7

Reviews

1 / 10

Ticket counter agent need to be more patient. Food was not good. It was not good like in the past.. Cabin was too hot.

ANA
8.4
Very good
830 reviews
Korean Air
8.5
Very good
1,019 reviews

Boarding

8.5

Food

8.1

Entertainment

8.2

Overall

8.5

Comfort

8.3

Crew

8.7

Reviews

1 / 10

Ticket counter agent need to be more patient. Food was not good. It was not good like in the past.. Cabin was too hot.

Japan Airlines
8.3
Very good
1,450 reviews
Korean Air
8.5
Very good
1,019 reviews

Boarding

8.5

Food

8.1

Entertainment

8.2

Overall

8.5

Comfort

8.3

Crew

8.7

Reviews

1 / 10

Ticket counter agent need to be more patient. Food was not good. It was not good like in the past.. Cabin was too hot.

Delta
8.0
Very good
8,698 reviews
Korean Air
8.5
Very good
1,019 reviews

Boarding

8.5

Food

8.1

Entertainment

8.2

Overall

8.5

Comfort

8.3

Crew

8.7

Reviews

1 / 10

Ticket counter agent need to be more patient. Food was not good. It was not good like in the past.. Cabin was too hot.

Cathay Pacific
7.6
Good
867 reviews
Korean Air
8.5
Very good
1,019 reviews

Boarding

8.5

Food

8.1

Entertainment

8.2

Overall

8.5

Comfort

8.3

Crew

8.7

Reviews

1 / 10

Ticket counter agent need to be more patient. Food was not good. It was not good like in the past.. Cabin was too hot.

Related info for your journey

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

    Lambert-St Louis (STL) is the airport you will fly out of if you book a flight from St. Louis to Bangkok. You should not have trouble finding flights to Bangkok from Lambert-St Louis; the airport handles an average of 0 outbound flights to Bangkok per day. You should also have plenty of airline options to choose from since 11 airlines have flights from the St. Louis airport to Bangkok. It is only a 12.7 mi journey to Lambert-St Louis (STL) from St. Louis’s city center.

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

    Cheapflights users have booked flights from St. Louis to Bangkok round-trip from $1,092. Other airlines that can offer you cheap pricing are United Airlines, from $1,114, and Korean Air, from $1,259. Japan Airlines is priced at 29% lower than the current average price of a flight leaving 3 months from now.

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

    For one-way options, check prices for Cathay Pacific. According to our data, you can fly for as low as $1,193. Users have also found prices from $1,452 and $3,497 on United Airlines and ANA, respectively.

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

    Flights departing from St. Louis and landing in Bangkok layover in Doha most frequently.

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

    The majority of Doha visitors spend their time at 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. Travelers can book a car rental at Doha Hamad Intl for about $32 per day to make their sightseeing more efficient.

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

    Of the flights from St. Louis to Bangkok that have layovers, the fewest flights stop in Chicago.

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

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

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

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

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

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

    Currently, September is the cheapest month in which you can book a flight from St. Louis to Bangkok (average of $979). Flying from St. Louis to Bangkok 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

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Top 10 airlines flying from St. Louis to Bangkok

Discover the top 10 airlines that operate flights from St. Louis to Bangkok. 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 2,650,959 searches. Data last updated December 2, 2024.
AirlineCheapestAverageFlexibilityOn-time
Japan AirlinesCheapest$1,084Average$1,196FlexibilityNo cancel feeOn-time79%
United AirlinesCheapest$1,117Average$1,238FlexibilityNo cancel feeOn-time69%
ANACheapest$1,125Average$1,482FlexibilityNo cancel feeOn-time80%
DeltaCheapest$1,149Average$1,347FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$1,151Average$1,546FlexibilityNo cancel feeOn-time71%
Turkish AirlinesCheapest$1,158Average$1,320FlexibilityNo cancel feeOn-time77%
Air CanadaCheapest$1,226Average$1,678FlexibilityNo cancel feeOn-time67%
FinnairCheapest$1,259Average$1,692FlexibilityNo cancel feeOn-time76%
Cathay PacificCheapest$1,266Average$1,566FlexibilityNo cancel feeOn-time72%
Qatar AirwaysCheapest$1,319Average$1,381FlexibilityNo cancel feeOn-time68%
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