How long does it take to fly to St. Louis?

Flight times from Thailand to St. Louis vary, but if you’re flying out of Bangkok and flying into St. Louis (one of the most popular routes), then the duration is 37h 46m on average. Another popular route from Thailand to St. Louis is flying from Phuket City to St. Louis, which will take roughly 52h 15m. Keep in mind that layovers or delays could extend your travel time.

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

Prices for flights from Thailand to Lambert-St Louis Airport refresh daily.

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

As of January 2026, there are 2 operators available to choose from for flights from Thailand to Lambert-St Louis Airport.

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

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Thailand to Lambert-St Louis Airport.

What documentation or ID do you need to fly to Lambert-St Louis Airport?

The necessary travel and health documents for your Lambert-St Louis Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$531 Cheap Flights from Thailand to St. Louis in 2026

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Find the cheapest flights from Thailand to St. Louis

Round-trip

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Recent round-trip flight deals from Thailand to St. Louis

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11:50 pm - 11:59 pm

BKK

STL

60h 09m

2 stops

4:20 pm - 12:10 pm

STL

BKK

31h 50m

2 stops

$934Multiple Airlines

Mon, Mar 16 - Fri, Mar 27

7:35 am - 11:59 pm

BKK

STL

28h 24m

2 stops

7:00 am - 12:10 am

STL

BKK

29h 10m

2 stops

$1,034Multiple Airlines

Tue, Apr 21 - Wed, May 6

5:30 pm - 9:05 pm

BKK

STL

39h 35m

2 stops

8:25 am - 9:45 am

STL

BKK

37h 20m

2 stops

$1,061Multiple Airlines

Thu, Apr 23 - Fri, May 1

8:15 am - 10:58 pm

BKK

STL

27h 43m

2 stops

7:41 am - 6:30 am

STL

BKK

33h 49m

2 stops

$1,090Air Canada

Wed, Feb 11 - Wed, Feb 25

1:20 pm - 3:50 pm

BKK

STL

38h 30m

2 stops

8:25 am - 9:45 am

STL

BKK

37h 20m

2 stops

$1,130Multiple Airlines

Thu, Apr 23 - Fri, May 1

10:50 am - 2:50 pm

BKK

STL

40h 00m

3 stops

8:35 am - 4:20 pm

STL

BKK

43h 45m

2 stops

$1,141Multiple Airlines

Tue, Apr 21 - Wed, May 6

5:50 pm - 10:20 pm

BKK

STL

41h 30m

2 stops

7:00 am - 9:50 am

STL

BKK

37h 50m

2 stops

$1,164Multiple Airlines

Tue, Feb 10 - Tue, Feb 24

8:20 am - 11:35 pm

HKT

STL

52h 15m

2 stops

9:37 am - 12:55 pm

STL

HKT

39h 18m

2 stops

$1,339Qatar Airways

Thu, Mar 5 - Mon, Mar 9

8:20 am - 11:35 pm

HKT

STL

52h 15m

2 stops

9:37 am - 12:55 pm

STL

HKT

39h 18m

2 stops

$1,340Qatar Airways

Thu, Mar 5 - Mon, Mar 9

4:55 pm - 9:22 am

BKK

STL

29h 27m

3 stops

12:15 pm - 11:25 am

STL

BKK

34h 10m

3 stops

$1,462United Airlines

Tue, Feb 10 - Tue, Feb 24

Qatar Airways flights from Thailand to St. Louis

Our best Qatar Airways deals on Thailand to St. Louis flight tickets

Qatar Airways

Mar 5

HKT8:20 amPhuket City

52h 15m

2 stops

STL11:35 pmLambert-St Louis

Mar 9

STL9:37 amLambert-St Louis

39h 18m

2 stops

HKT12:55 pmPhuket City

$1,339

Qatar Airways

Mar 5

HKT8:20 amPhuket City

52h 15m

2 stops

STL11:35 pmLambert-St Louis

Mar 9

STL9:37 amLambert-St Louis

39h 18m

2 stops

HKT12:55 pmPhuket City

$1,340

Qatar Airways

Mar 5

HKT8:20 amPhuket City

49h 52m

2 stops

STL9:12 pmLambert-St Louis

Mar 9

STL9:37 amLambert-St Louis

33h 13m

2 stops

HKT6:50 amPhuket City

$1,341

United Airlines flights from Thailand to St. Louis

Our best United Airlines deals on Thailand to St. Louis flight tickets

United Airlines

Feb 10

BKK4:55 pmBangkok Suvarnabhumi

29h 27m

3 stops

STL9:22 amLambert-St Louis

Feb 24

STL12:15 pmLambert-St Louis

34h 10m

3 stops

BKK11:25 amBangkok Suvarnabhumi

$1,462

United Airlines

Apr 21

BKK3:45 pmBangkok Suvarnabhumi

28h 50m

3 stops

STL8:35 amLambert-St Louis

May 6

STL8:46 amLambert-St Louis

36h 49m

3 stops

BKK9:35 amBangkok Suvarnabhumi

$1,463

United Airlines

Apr 23

BKK3:45 pmBangkok Suvarnabhumi

31h 00m

3 stops

STL10:45 amLambert-St Louis

May 1

STL2:35 pmLambert-St Louis

31h 00m

3 stops

BKK9:35 amBangkok Suvarnabhumi

$1,472

Fly from

Fly to

Route

Depart

Return

Price

BangkokSt. Louis

BKK - STL

BKKSTL

Bangkok Suvarnabhumi

Mon 3/16

11:50 pm-11:59 pm

2 stops60h 09m

Lambert-St Louis

Fri 3/27

4:20 pm-12:10 pm

2 stops31h 50m

$934

BangkokSt. Louis

BKK - STL

BKKSTL

Bangkok Suvarnabhumi

Tue 4/21

7:35 am-11:59 pm

2 stops28h 24m

Lambert-St Louis

Wed 5/6

7:00 am-12:10 am

2 stops29h 10m

$1,034

BangkokSt. Louis

BKK - STL

BKKSTL

Bangkok Suvarnabhumi

Thu 4/23

5:30 pm-9:05 pm

2 stops39h 35m

Lambert-St Louis

Fri 5/1

8:25 am-9:45 am

2 stops37h 20m

$1,061

BangkokSt. Louis

BKK - STL

BKKSTL

Bangkok Suvarnabhumi

Wed 2/11

8:15 am-10:58 pm

2 stops27h 43m

Lambert-St Louis

Wed 2/25

7:41 am-6:30 am

2 stops33h 49m

$1,090

BangkokSt. Louis

BKK - STL

BKKSTL

Bangkok Suvarnabhumi

Thu 4/23

1:20 pm-3:50 pm

2 stops38h 30m

Lambert-St Louis

Fri 5/1

8:25 am-9:45 am

2 stops37h 20m

$1,130

BangkokSt. Louis

BKK - STL

BKKSTL

Bangkok Suvarnabhumi

Tue 4/21

10:50 am-2:50 pm

3 stops40h 00m

Lambert-St Louis

Wed 5/6

8:35 am-4:20 pm

2 stops43h 45m

$1,141

BangkokSt. Louis

BKK - STL

BKKSTL

Bangkok Suvarnabhumi

Tue 2/10

5:50 pm-10:20 pm

2 stops41h 30m

Lambert-St Louis

Tue 2/24

7:00 am-9:50 am

2 stops37h 50m

$1,164

Phuket CitySt. Louis

HKT - STL

HKTSTL

Phuket City

Thu 3/5

8:20 am-11:35 pm

2 stops52h 15m

Lambert-St Louis

Mon 3/9

9:37 am-12:55 pm

2 stops39h 18m

$1,339

Phuket CitySt. Louis

HKT - STL

HKTSTL

Phuket City

Thu 3/5

8:20 am-11:35 pm

2 stops52h 15m

Lambert-St Louis

Mon 3/9

9:37 am-12:55 pm

2 stops39h 18m

$1,340

BangkokSt. Louis

BKK - STL

BKKSTL

Bangkok Suvarnabhumi

Tue 2/10

4:55 pm-9:22 am

3 stops29h 27m

Lambert-St Louis

Tue 2/24

12:15 pm-11:25 am

3 stops34h 10m

$1,462

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 Thailand to St. Louis

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

Airlines

Other information

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

Philippine Airlines and Air Canada are the most popular carriers operating from Thailand to Lambert-St Louis

Cheap Thailand to St. Louis flight deals and tips

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

Fastest flight time	28h 24m
Direct flights	None

The fastest flight from Thailand to St. Louis takes 28h 24m

There are no direct flights from Thailand to St. Louis. There are no popular flight routes from Thailand to St. Louis.

Search flight deals

When did momondo last update prices for flights from Thailand to Lambert-St Louis Airport?
Prices for flights from Thailand to Lambert-St Louis Airport refresh daily.
How many operators does momondo search for flights from Thailand to Lambert-St Louis Airport?
As of January 2026, there are 2 operators available to choose from for flights from Thailand to Lambert-St Louis Airport.
How old do you have to be to fly from Thailand to Lambert-St Louis Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Thailand to Lambert-St Louis Airport.
What documentation or ID do you need to fly to Lambert-St Louis Airport?
The necessary travel and health documents for your Lambert-St Louis Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Thailand to St. Louis

Compare and see reviews for airlines that fly from Thailand to St. Louis with momondo

Airline	Rating	Free Cancellation	Price
Japan Airlines	PriceFrom $980	Free Cancellation	Rating 8.3 1,691 reviews		Search Japan Airlines flights
United Airlines	PriceFrom $1,410	Free Cancellation	Rating 7.4 9,215 reviews		Search United Airlines flights

St. Charles

Chesterfield

Hermann

Fairview Heights

Maryland Heights

Florissant

O'Fallon

Collinsville

Fenton

St. Peters

Wentzville

Alton

Farmington

Clayton

Edwardsville

Eureka

Festus

Glencoe

Litchfield

Shrewsbury

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

It is quick and easy to find Thailand to St. Louis flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to St. Louis that suits you.

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

All flight searches from Thailand to St. Louis on momondo can be filtered to show those which offer flexible booking policies.

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

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

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

If you are simply researching potential flights to St. Louis, momondo offers a useful price alert feature which will track prices for flights to St. Louis from Thailand and alert you when they change.