What airlines fly to Bangkok Suvarnabhumi Airport?

United Airlines, Cathay Pacific and Qatar Airways are the top three most popular airlines that fly to Bangkok Suvarnabhumi Airport from St. Louis according to our data. United Airlines is the first choice among our users, with 33% of people opting to fly with this airline when traveling to Bangkok Suvarnabhumi Airport. Keep in mind that there are 8 different airlines that fly to Bangkok Suvarnabhumi Airport on a routine basis, so you have a few additional options to choose from.

What is the cheapest airline that flies from Lambert-St Louis to Bangkok Suvarnabhumi?

Qatar Airways is the most popular carrier operating from Lambert-St Louis to Bangkok Suvarnabhumi

When did momondo last update prices for flights from Lambert-St Louis Airport to Bangkok Suvarnabhumi Airport?

Prices for flights from Lambert-St Louis Airport to Bangkok Suvarnabhumi Airport are refreshed on a daily basis.

How many operators does momondo search for flights from Lambert-St Louis Airport to Bangkok Suvarnabhumi Airport?

As of September 2026, there are 8 operators available to choose from for flights from Lambert-St Louis Airport to Bangkok Suvarnabhumi Airport.

How old do you have to be to fly from Lambert-St Louis Airport to Bangkok Suvarnabhumi Airport?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Lambert-St Louis Airport to Bangkok Suvarnabhumi Airport.

What documentation or ID do you need to fly to Bangkok Suvarnabhumi Airport?

The travel and health documents required for your trip to Bangkok Suvarnabhumi Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Bangkok Suvarnabhumi Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$510 Cheap Flights from St. Louis to Bangkok Suvarnabhumi Airport in 2026

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from St. Louis to Bangkok

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

2:40 pm - 7:25 amSTL Lambert-St Louis-BKK Bangkok Suvarnabhumi

28h 45m2 stops Toronto Pearson Intl Rome Fiumicino

10:55 pm - 3:43 pmBKK Bangkok Suvarnabhumi-STL Lambert-St Louis

28h 48m2 stops Munich Franz Josef Strauss Chicago O'Hare Intl

$1,028Multiple Airlines

Mon, Sep 28 - Tue, Oct 13

7:00 am - 6:35 amSTL Lambert-St Louis-BKK Bangkok Suvarnabhumi

34h 35m2 stops Charlotte Douglas Abu Dhabi Zayed Intl

8:50 pm - 2:53 pmBKK Bangkok Suvarnabhumi-STL Lambert-St Louis

31h 03m2 stops Abu Dhabi Zayed Intl New York John F Kennedy Intl

$1,038Multiple Airlines

Tue, Mar 2 - Tue, Mar 9

11:25 am - 6:40 amSTL Lambert-St Louis-BKK Bangkok Suvarnabhumi

30h 15m2 stops Chicago O'Hare Intl Doha Hamad Intl

6:55 pm - 11:58 pmBKK Bangkok Suvarnabhumi-STL Lambert-St Louis

42h 03m2 stops Doha Hamad Intl Chicago O'Hare Intl

$1,051Qatar Airways

Wed, Feb 10 - Mon, Feb 22

11:01 am - 6:20 amSTL Lambert-St Louis-BKK Bangkok Suvarnabhumi

31h 19m2 stops Chicago O'Hare Intl Doha Hamad Intl

2:30 am - 8:57 pmBKK Bangkok Suvarnabhumi-STL Lambert-St Louis

30h 27m2 stops Doha Hamad Intl Chicago O'Hare Intl

$1,054Qatar Airways

Tue, Sep 22 - Tue, Oct 6

11:14 am - 4:25 pmSTL Lambert-St Louis-BKK Bangkok Suvarnabhumi

40h 11m2 stops Chicago O'Hare Intl Tokyo Haneda

9:50 am - 4:43 pmBKK Bangkok Suvarnabhumi-STL Lambert-St Louis

43h 53m2 stops Tokyo Haneda Chicago O'Hare Intl

$1,110Japan Airlines

Tue, Dec 1 - Tue, Dec 8

11:14 am - 4:25 pmSTL Lambert-St Louis-BKK Bangkok Suvarnabhumi

40h 11m2 stops Chicago O'Hare Intl Tokyo Haneda

10:05 pm - 4:43 pmBKK Bangkok Suvarnabhumi-STL Lambert-St Louis

31h 38m2 stops Tokyo Haneda Chicago O'Hare Intl

$1,111Japan Airlines

Tue, Dec 1 - Tue, Dec 8

11:01 am - 12:10 amSTL Lambert-St Louis-BKK Bangkok Suvarnabhumi

25h 09m2 stops Chicago O'Hare Intl Hong Kong Intl

11:00 am - 9:59 pmBKK Bangkok Suvarnabhumi-STL Lambert-St Louis

22h 59m2 stops Hong Kong Intl Dallas/Fort Worth

$1,119Cathay Pacific

Sun, Oct 4 - Sun, Oct 11

11:01 am - 12:10 amSTL Lambert-St Louis-BKK Bangkok Suvarnabhumi

25h 09m2 stops Chicago O'Hare Intl Hong Kong Intl

5:30 pm - 6:16 pmBKK Bangkok Suvarnabhumi-STL Lambert-St Louis

36h 46m2 stops Hong Kong Intl Chicago O'Hare Intl

$1,145Cathay Pacific

Sun, Oct 4 - Mon, Oct 12

8:35 am - 9:35 amSTL Lambert-St Louis-BKK Bangkok Suvarnabhumi

37h 00m3 stops Houston George Bush Intcntl Los Angeles Los Angeles Hong Kong Intl

7:00 am - 6:43 pmBKK Bangkok Suvarnabhumi-STL Lambert-St Louis

23h 43m2 stops Tokyo Narita San Francisco

$1,149United Airlines

Mon, Sep 28 - Tue, Oct 13

9:22 am - 5:10 amSTL Lambert-St Louis-BKK Bangkok Suvarnabhumi

30h 48m2 stops Chicago O'Hare Intl Tokyo Haneda

9:10 am - 6:08 pmBKK Bangkok Suvarnabhumi-STL Lambert-St Louis

21h 58m2 stops Tokyo Haneda Chicago O'Hare Intl

$1,155United Airlines

Tue, Jan 12 - Mon, Jan 25

Cheap last minute flights

Enter your travel dates to find the best prices.

11:01 am - 7:35 amSTL Lambert-St Louis-BKK Bangkok Suvarnabhumi

32h 34m2 stops Chicago O'Hare Intl Doha Hamad Intl

2:30 am - 12:27 amBKK Bangkok Suvarnabhumi-STL Lambert-St Louis

33h 57m2 stops Doha Hamad Intl Chicago O'Hare Intl

$1,060Qatar Airways

Wed, Sep 16 - Wed, Sep 30

7:21 am - 12:55 pmSTL Lambert-St Louis-BKK Bangkok Suvarnabhumi

41h 34m2 stops Chicago O'Hare Intl Doha Hamad Intl

2:30 am - 8:44 pmBKK Bangkok Suvarnabhumi-STL Lambert-St Louis

30h 14m2 stops Doha Hamad Intl Chicago O'Hare Intl

$1,060Qatar Airways

Wed, Sep 16 - Tue, Sep 29

3:34 pm - 10:00 amSTL Lambert-St Louis-BKK Bangkok Suvarnabhumi

30h 26m2 stops Dallas/Fort Worth Hong Kong Intl

7:10 pm - 8:44 pmBKK Bangkok Suvarnabhumi-STL Lambert-St Louis

37h 34m2 stops Hong Kong Intl Chicago O'Hare Intl

$1,141Multiple Airlines

Tue, Sep 15 - Sat, Sep 19

5:30 pm - 9:35 amSTL Lambert-St Louis-BKK Bangkok Suvarnabhumi

28h 05m3 stops Chicago O'Hare Intl Los Angeles Los Angeles Hong Kong Intl

9:35 am - 7:01 pmBKK Bangkok Suvarnabhumi-STL Lambert-St Louis

45h 26m2 stops Tokyo Haneda Chicago O'Hare Intl

$1,159United Airlines

Tue, Sep 15 - Tue, Sep 29

4:40 pm - 9:35 amSTL Lambert-St Louis-BKK Bangkok Suvarnabhumi

28h 55m3 stops Denver Intl Los Angeles Los Angeles Hong Kong Intl

9:35 am - 6:43 pmBKK Bangkok Suvarnabhumi-STL Lambert-St Louis

45h 08m2 stops Tokyo Haneda San Francisco

$1,159United Airlines

Tue, Sep 15 - Wed, Sep 30

11:01 am - 5:45 amSTL Lambert-St Louis-BKK Bangkok Suvarnabhumi

30h 44m2 stops Chicago O'Hare Intl Tokyo Haneda

9:40 pm - 11:30 pmBKK Bangkok Suvarnabhumi-STL Lambert-St Louis

37h 50m2 stops Tokyo Haneda Los Angeles Los Angeles

$1,159Japan Airlines

Fri, Sep 11 - Sun, Sep 13

6:20 am - 5:45 amSTL Lambert-St Louis-BKK Bangkok Suvarnabhumi

35h 25m2 stops Los Angeles Los Angeles Tokyo Haneda

9:40 pm - 11:30 pmBKK Bangkok Suvarnabhumi-STL Lambert-St Louis

37h 50m2 stops Tokyo Haneda Los Angeles Los Angeles

$1,159Japan Airlines

Sat, Sep 12 - Mon, Sep 14

5:00 am - 12:55 amSTL Lambert-St Louis-BKK Bangkok Suvarnabhumi

31h 55m2 stops Chicago O'Hare Intl Abu Dhabi Zayed Intl

9:00 pm - 8:44 pmBKK Bangkok Suvarnabhumi-STL Lambert-St Louis

35h 44m2 stops Abu Dhabi Zayed Intl Chicago O'Hare Intl

$1,175Multiple Airlines

Sun, Sep 13 - Tue, Sep 15

8:00 am - 4:35 amSTL Lambert-St Louis-BKK Bangkok Suvarnabhumi

32h 35m2 stops Chicago O'Hare Intl Tokyo Haneda

9:35 pm - 11:57 amBKK Bangkok Suvarnabhumi-STL Lambert-St Louis

26h 22m2 stops Tokyo Haneda Chicago O'Hare Intl

$1,209ANA

Sun, Sep 13 - Tue, Sep 15

12:59 pm - 4:35 amSTL Lambert-St Louis-BKK Bangkok Suvarnabhumi

27h 36m2 stops Chicago O'Hare Intl Tokyo Haneda

7:00 am - 9:21 pmBKK Bangkok Suvarnabhumi-STL Lambert-St Louis

26h 21m2 stops Tokyo Narita Chicago O'Hare Intl

$16,682ANA

Tue, Sep 15 - Thu, Oct 1

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

STARLUX Airlines flights from St. Louis to Bangkok Suvarnabhumi Airport

Our best STARLUX Airlines deals on St. Louis to Bangkok Suvarnabhumi Airport flight tickets

STARLUX Airlines

Oct 28

STL7:02 amLambert-St Louis

41h 33m

2 stops

BKK12:35 pmBangkok Suvarnabhumi

Nov 11

BKK5:40 pmBangkok Suvarnabhumi

43h 19m

2 stops

STL11:59 pmLambert-St Louis

$1,111

STARLUX Airlines

Oct 23

STL4:42 pmLambert-St Louis

31h 53m

2 stops

BKK12:35 pmBangkok Suvarnabhumi

Nov 3

BKK5:40 pmBangkok Suvarnabhumi

57h 45m

2 stops

STL2:25 pmLambert-St Louis

$1,113

STARLUX Airlines

Oct 10

STL6:02 amLambert-St Louis

41h 58m

2 stops

BKK12:00 pmBangkok Suvarnabhumi

Nov 10

BKK5:40 pmBangkok Suvarnabhumi

57h 45m

2 stops

STL2:25 pmLambert-St Louis

$1,120

Cathay Pacific flights from St. Louis to Bangkok Suvarnabhumi Airport

Our best Cathay Pacific deals on St. Louis to Bangkok Suvarnabhumi Airport flight tickets

Cathay Pacific

Oct 4

STL11:01 amLambert-St Louis

25h 09m

2 stops

BKK12:10 amBangkok Suvarnabhumi

Oct 11

BKK11:00 amBangkok Suvarnabhumi

22h 59m

2 stops

STL9:59 pmLambert-St Louis

$1,119

Cathay Pacific

Nov 25

STL5:00 amLambert-St Louis

30h 15m

2 stops

BKK12:15 amBangkok Suvarnabhumi

Dec 12

BKK5:00 pmBangkok Suvarnabhumi

38h 17m

2 stops

STL6:17 pmLambert-St Louis

$1,145

Cathay Pacific

Nov 25

STL6:00 amLambert-St Louis

29h 15m

2 stops

BKK12:15 amBangkok Suvarnabhumi

Dec 12

BKK5:45 pmBangkok Suvarnabhumi

35h 58m

2 stops

STL4:43 pmLambert-St Louis

$1,147

momondo Fare Finder

Use the filters below to find and compare flights from St. Louis to Bangkok Suvarnabhumi Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

St. LouisBangkok

STL Lambert-St Louis - BKK Bangkok Suvarnabhumi

STLBKK

Lambert-St Louis

Mon 9/28

2:40 pm-7:25 am

2 stops28h 45m

Bangkok Suvarnabhumi

Tue 10/13

10:55 pm-3:43 pm

2 stops28h 48m

$1,028

St. LouisBangkok

STL Lambert-St Louis - BKK Bangkok Suvarnabhumi

STLBKK

Lambert-St Louis

Tue 3/2

7:00 am-6:35 am

2 stops34h 35m

Bangkok Suvarnabhumi

Tue 3/9

8:50 pm-2:53 pm

2 stops31h 03m

$1,038

St. LouisBangkok

STL Lambert-St Louis - BKK Bangkok Suvarnabhumi

STLBKK

Lambert-St Louis

Wed 2/10

11:25 am-6:40 am

2 stops30h 15m

Bangkok Suvarnabhumi

Mon 2/22

6:55 pm-11:58 pm

2 stops42h 03m

$1,051

St. LouisBangkok

STL Lambert-St Louis - BKK Bangkok Suvarnabhumi

STLBKK

Lambert-St Louis

Tue 9/22

11:01 am-6:20 am

2 stops31h 19m

Bangkok Suvarnabhumi

Tue 10/6

2:30 am-8:57 pm

2 stops30h 27m

$1,054

St. LouisBangkok

STL Lambert-St Louis - BKK Bangkok Suvarnabhumi

STLBKK

Lambert-St Louis

Tue 12/1

11:14 am-4:25 pm

2 stops40h 11m

Bangkok Suvarnabhumi

Tue 12/8

9:50 am-4:43 pm

2 stops43h 53m

$1,110

St. LouisBangkok

STL Lambert-St Louis - BKK Bangkok Suvarnabhumi

STLBKK

Lambert-St Louis

Tue 12/1

11:14 am-4:25 pm

2 stops40h 11m

Bangkok Suvarnabhumi

Tue 12/8

10:05 pm-4:43 pm

2 stops31h 38m

$1,111

Quickest round-trip

St. LouisBangkok

STL Lambert-St Louis - BKK Bangkok Suvarnabhumi

STLBKK

Lambert-St Louis

Sun 10/4

11:01 am-12:10 am

2 stops25h 09m

Bangkok Suvarnabhumi

Sun 10/11

11:00 am-9:59 pm

2 stops22h 59m

$1,119

St. LouisBangkok

STL Lambert-St Louis - BKK Bangkok Suvarnabhumi

STLBKK

Lambert-St Louis

Sun 10/4

11:01 am-12:10 am

2 stops25h 09m

Bangkok Suvarnabhumi

Mon 10/12

5:30 pm-6:16 pm

2 stops36h 46m

$1,145

St. LouisBangkok

STL Lambert-St Louis - BKK Bangkok Suvarnabhumi

STLBKK

Lambert-St Louis

Mon 9/28

8:35 am-9:35 am

3 stops37h 00m

Bangkok Suvarnabhumi

Tue 10/13

7:00 am-6:43 pm

2 stops23h 43m

$1,149

St. LouisBangkok

STL Lambert-St Louis - BKK Bangkok Suvarnabhumi

STLBKK

Lambert-St Louis

Tue 1/12

9:22 am-5:10 am

2 stops30h 48m

Bangkok Suvarnabhumi

Mon 1/25

9:10 am-6:08 pm

2 stops21h 58m

$1,155

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from St. Louis to Bangkok Suvarnabhumi Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

What is the typical price of a round-trip flight between St. Louis and Bangkok Suvarnabhumi Airport?

Prices are currently low for flights on this route.

Typical prices usually range from $1,115 to $1,504.
The lowest price recently found on this route was $1,028.

What is the cheapest month to fly to Bangkok Suvarnabhumi Airport?

The month of August is, on average, the cheapest month to fly to Bangkok Suvarnabhumi Airport from St. Louis, with most prices found around $979. The month of February is another great option to travel to Bangkok Suvarnabhumi Airport, with average flight prices from St. Louis averaging around $1,024.

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

You are more likely to see cheaper flights to Bangkok Suvarnabhumi Airport from St. Louis when booking weeks ahead of your departure date. In general, you can expect to find flights to Bangkok Suvarnabhumi Airport for around $1,307 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Bangkok Suvarnabhumi Airport from St. Louis for as low as $1,013 on momondo.

How have St. Louis to Bangkok Suvarnabhumi Airport flight prices changed over time?

When to book flights from St. Louis to Bangkok Suvarnabhumi Airport

Are you open to changing your travel dates? Check out the ideal times to fly from St. Louis to Bangkok Suvarnabhumi Airport according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap St. Louis to Bangkok Suvarnabhumi Airport (STL to BKK) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from St. Louis to Bangkok Suvarnabhumi Airport

Best Price Found	$510
Fastest flight time	27h 50m
Direct flights	None

The best one-way flight to Bangkok Suvarnabhumi Airport from St. Louis in the past 72 hours is $510. The best round-trip flight deal from St. Louis to Bangkok Suvarnabhumi Airport found on momondo in the last 72 hours is $1,028.

The fastest flight from St. Louis to Bangkok Suvarnabhumi Airport takes 27h 50m

There are no direct flights from St. Louis to Bangkok Suvarnabhumi Airport. There are no popular flight routes from St. Louis to Bangkok Suvarnabhumi Airport.

Search flight deals

Frequently asked questions about flying from St. Louis to Bangkok Suvarnabhumi Airport

How far is Lambert-St Louis to Bangkok Suvarnabhumi by plane?
The straight-line distance from Lambert-St Louis to Bangkok Suvarnabhumi is 8747.1 mi. By plane, this route typically takes 27h 50m.
When did momondo last update prices for flights from Lambert-St Louis Airport to Bangkok Suvarnabhumi Airport?
Prices for flights from Lambert-St Louis Airport to Bangkok Suvarnabhumi Airport are refreshed on a daily basis.
How many operators does momondo search for flights from Lambert-St Louis Airport to Bangkok Suvarnabhumi Airport?
As of September 2026, there are 8 operators available to choose from for flights from Lambert-St Louis Airport to Bangkok Suvarnabhumi Airport.
How old do you have to be to fly from Lambert-St Louis Airport to Bangkok Suvarnabhumi Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Lambert-St Louis Airport to Bangkok Suvarnabhumi Airport.
What documentation or ID do you need to fly to Bangkok Suvarnabhumi Airport?
The travel and health documents required for your trip to Bangkok Suvarnabhumi Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Bangkok Suvarnabhumi Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular airline from St. Louis to Bangkok Suvarnabhumi Airport?
momondo data reveals that the most frequently booked airline on the route from St. Louis to Bangkok Suvarnabhumi Airport is United Airlines, representing 26% of all bookings. The subsequent popular airlines are Cathay Pacific at 23%, Qatar Airways at 16%, and Delta at 13%.

Best airlines flying from St. Louis to Bangkok Suvarnabhumi Airport

Compare and see reviews for airlines that fly from St. Louis to Bangkok Suvarnabhumi Airport with momondo

Airline	Rating	Free Cancellation	Price
Delta	PriceFrom $881	Free Cancellation	Rating 7.8 8,553 reviews	Search Delta flights
Japan Airlines	PriceFrom $929	Free Cancellation	Rating 8.3 1,911 reviews	Search Japan Airlines flights
Qatar Airways	PriceFrom $946	Free Cancellation	Rating 7.4 3,734 reviews	Search Qatar Airways flights
American Airlines	PriceFrom $948	Free Cancellation	Rating 7.1 12,045 reviews	Search American Airlines flights
Cathay Pacific	PriceFrom $974	Free Cancellation	Rating 7.6 1,480 reviews	Search Cathay Pacific flights
United Airlines	PriceFrom $982	Free Cancellation	Rating 7.4 10,194 reviews	Search United Airlines flights
ANA	PriceFrom $1,007	Free Cancellation	Rating 8.3 1,312 reviews	Search ANA flights
EVA Air	PriceFrom $1,048	Free Cancellation	Rating 8.5 1,522 reviews	Search EVA Air flights

Pattaya

Ko Samet

Kanchanaburi

Cha-am

Chonburi

Sattahip

Ko Lan

Ayutthaya

Pak Chong

Phetchaburi

Why use momondo?

Why should I use momondo to find a flight deal from St. Louis to Bangkok?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Bangkok from St. Louis.

Can I find flights from St. Louis to Bangkok with flexible booking policies on momondo?

Flights from St. Louis to Bangkok with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from St. Louis to Bangkok?

momondo provides multiple filters to help you find the best flight to Bangkok from St. Louis. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from St. Louis to Bangkok right now. Can momondo alert me if prices change?

Yes. momondo can track prices for St. Louis to Bangkok flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

An easier way to manage your Bangkok Suvarnabhumi Airport trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Start using Trips

Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

1 adult

Sat 10/10

Sat 10/17

Email me momondo's favorite deals

By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Bangkok

Popular cities

Other flights from St. Louis

Other flights to Bangkok

Airlines

Cabin classes

Complete your trip

Feeling lucky

Popular cities in Thailand

Flights to Bangkok Don Mueang Intl Airportfrom $949

Cheap flights from St. Louis to Bangkok from $510

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to Bangkok departing on 9/30. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Find the cheapest flights from St. Louis to Bangkok

Cheap round-trip flights

Cheap one-way flights

Cheap last minute flights

Big names and deals

Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

STARLUX Airlines flights from St. Louis to Bangkok Suvarnabhumi Airport

Our best STARLUX Airlines deals on St. Louis to Bangkok Suvarnabhumi Airport flight tickets

Cathay Pacific flights from St. Louis to Bangkok Suvarnabhumi Airport

Our best Cathay Pacific deals on St. Louis to Bangkok Suvarnabhumi Airport flight tickets

momondo Fare Finder

Use the filters below to find and compare flights from St. Louis to Bangkok Suvarnabhumi Airport that are best for you.

See travel insights to Bangkok from

How to get the cheapest flight ticket from St. Louis to Bangkok Suvarnabhumi Airport

What is the typical price of a round-trip flight between St. Louis and Bangkok Suvarnabhumi Airport?

What is the cheapest month to fly to Bangkok Suvarnabhumi Airport?

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

How have St. Louis to Bangkok Suvarnabhumi Airport flight prices changed over time?

What is the cheapest airline that flies from Lambert-St Louis to Bangkok Suvarnabhumi?

What airlines fly to Bangkok Suvarnabhumi Airport?

When to book flights from St. Louis to Bangkok Suvarnabhumi Airport

Cheap St. Louis to Bangkok Suvarnabhumi Airport (STL to BKK) flight deals and tips

Best Price Found

Fastest flight time

Direct flights

Frequently asked questions about flying from St. Louis to Bangkok Suvarnabhumi Airport

Best airlines flying from St. Louis to Bangkok Suvarnabhumi Airport

Compare and see reviews for airlines that fly from St. Louis to Bangkok Suvarnabhumi Airport with momondo

Traveling to a place near Bangkok?

Why use momondo?

An easier way to manage your Bangkok Suvarnabhumi Airport trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Bangkok

Popular cities in Thailand

Popular flights according to clicks in the last 7 days on momondo

St. Louis flight routes

According to popular flight searches on momondo this year

Bangkok Suvarnabhumi Airport flight routes

According to popular flight searches on momondo this year

Fly your favorite airline to Bangkok

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Cabin classes currently available on flights to Bangkok

List of cabin classes available on flights landing in Bangkok. Availability may vary depending on flight origin and airline.

Complete your trip to Bangkok

Explore popular destinations other users love

According to popular flight searches on momondo this year