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

Air Canada, Cathay Pacific, and Delta are the most popular carriers operating from Thailand to Lambert-St Louis

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 23h 14m on average. Another popular route from Thailand to St. Louis is flying from Phuket City to St. Louis, which will take roughly 29h 52m. Keep in mind that layovers or delays could extend your travel time.

What airlines fly to St. Louis?

Japan Airlines, Air Canada and United Airlines are the top three most popular airlines that fly to St. Louis from Thailand according to our data. Japan Airlines is the first choice among our users, with 72% of people opting to fly with this airline when traveling to St. Louis. Keep in mind that there are 3 different airlines that fly to St. Louis on a routine basis, so you have a few additional options to choose from.

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 October 2025, there are 3 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.

$582 Cheap Flights from Thailand to St. Louis in 2025/26

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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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2:05 am - 11:40 pmBKK-STL

34h 35m2 stops

8:50 am - 12:45 amSTL-BKK

27h 55m2 stops

$1,020Delta

Find Deal

Wed, Mar 4 - Mon, Mar 9

2:05 am - 11:10 pmBKK-STL

34h 05m2 stops

6:45 am - 12:55 amSTL-BKK

30h 10m2 stops

$1,024Delta

Find Deal

Wed, Mar 4 - Mon, Mar 9

11:40 pm - 4:32 pmHKT-STL

29h 52m2 stops

5:32 pm - 10:10 pmSTL-HKT

39h 38m2 stops

$1,059Delta

Find Deal

Fri, Nov 7 - Tue, Nov 11

7:15 pm - 10:57 pmBKK-STL

40h 42m2 stops

11:18 am - 12:15 amSTL-BKK

24h 57m2 stops

$1,148Cathay Pacific

Find Deal

Thu, Mar 5 - Mon, Mar 9

11:40 pm - 4:32 pmHKT-STL

29h 52m2 stops

6:00 am - 10:10 pmSTL-HKT

27h 10m2 stops

$1,175Korean Air

Find Deal

Fri, Nov 7 - Tue, Nov 11

11:40 am - 10:24 pmBKK-STL

23h 44m2 stops

11:18 am - 12:15 amSTL-BKK

24h 57m2 stops

$1,205Cathay Pacific

Find Deal

Thu, Mar 5 - Mon, Mar 9

4:55 pm - 1:13 pmBKK-STL

33h 18m3 stops

11:25 am - 11:25 amSTL-BKK

36h 00m3 stops

$1,405United Airlines

Find Deal

Thu, Mar 5 - Mon, Mar 9

4:55 pm - 1:13 pmBKK-STL

33h 18m3 stops

3:13 pm - 11:25 amSTL-BKK

32h 12m3 stops

$1,410United Airlines

Find Deal

Thu, Mar 5 - Mon, Mar 9

10:05 pm - 1:29 pmBKK-STL

28h 24m2 stops

6:20 am - 5:00 amSTL-BKK

33h 40m2 stops

$1,598Japan Airlines

Find Deal

Thu, Dec 11 - Thu, Dec 18

2:05 am - 11:29 pmBKK-STL

34h 24m2 stops

7:05 am - 11:20 pmSTL-BKK

27h 15m2 stops

$1,849Korean Air

Find Deal

Wed, Dec 10 - Thu, Dec 18

Delta flights from Thailand to St. Louis

Our best Delta deals on Thailand to St. Louis flight tickets

Delta

Mar 4

BKK2:05 amBangkok Suvarnabhumi

34h 35m

2 stops

STL11:40 pmLambert-St Louis

Mar 9

STL8:50 amLambert-St Louis

27h 55m

2 stops

BKK12:45 amBangkok Suvarnabhumi

$1,020

Find similar

Delta

Mar 4

BKK2:05 amBangkok Suvarnabhumi

34h 05m

2 stops

STL11:10 pmLambert-St Louis

Mar 9

STL6:45 amLambert-St Louis

30h 10m

2 stops

BKK12:55 amBangkok Suvarnabhumi

$1,024

Find similar

Delta

Nov 7

HKT11:40 pmPhuket City

29h 52m

2 stops

STL4:32 pmLambert-St Louis

Nov 11

STL5:32 pmLambert-St Louis

39h 38m

2 stops

HKT10:10 pmPhuket City

$1,059

Find similar

Cathay Pacific flights from Thailand to St. Louis

Our best Cathay Pacific deals on Thailand to St. Louis flight tickets

Cathay Pacific

Mar 5

BKK7:15 pmBangkok Suvarnabhumi

40h 42m

2 stops

STL10:57 pmLambert-St Louis

Mar 9

STL11:18 amLambert-St Louis

24h 57m

2 stops

BKK12:15 amBangkok Suvarnabhumi

$1,148

Find similar

Cathay Pacific

Mar 5

BKK11:40 amBangkok Suvarnabhumi

23h 44m

2 stops

STL10:24 pmLambert-St Louis

Mar 9

STL11:18 amLambert-St Louis

24h 57m

2 stops

BKK12:15 amBangkok Suvarnabhumi

$1,205

Find similar

Cathay Pacific

Mar 5

BKK7:55 amBangkok Suvarnabhumi

23h 01m

2 stops

STL5:56 pmLambert-St Louis

Mar 9

STL11:18 amLambert-St Louis

24h 57m

2 stops

BKK12:15 amBangkok Suvarnabhumi

$1,210

Find similar

Fly from

Fly to

Route

Depart

Return

Price

BangkokSt. Louis

BKK - STL

BKKSTL

Bangkok Suvarnabhumi

Wed 3/4

2:05 am-11:40 pm

2 stops34h 35m

Lambert-St Louis

Mon 3/9

8:50 am-12:45 am

2 stops27h 55m

$1,020

BangkokSt. Louis

BKK - STL

BKKSTL

Bangkok Suvarnabhumi

Wed 3/4

2:05 am-11:10 pm

2 stops34h 05m

Lambert-St Louis

Mon 3/9

6:45 am-12:55 am

2 stops30h 10m

$1,024

Phuket CitySt. Louis

HKT - STL

HKTSTL

Phuket City

Fri 11/7

11:40 pm-4:32 pm

2 stops29h 52m

Lambert-St Louis

Tue 11/11

5:32 pm-10:10 pm

2 stops39h 38m

$1,059

BangkokSt. Louis

BKK - STL

BKKSTL

Bangkok Suvarnabhumi

Thu 3/5

7:15 pm-10:57 pm

2 stops40h 42m

Lambert-St Louis

Mon 3/9

11:18 am-12:15 am

2 stops24h 57m

$1,148

Phuket CitySt. Louis

HKT - STL

HKTSTL

Phuket City

Fri 11/7

11:40 pm-4:32 pm

2 stops29h 52m

Lambert-St Louis

Tue 11/11

6:00 am-10:10 pm

2 stops27h 10m

$1,175

BangkokSt. Louis

BKK - STL

BKKSTL

Bangkok Suvarnabhumi

Thu 3/5

11:40 am-10:24 pm

2 stops23h 44m

Lambert-St Louis

Mon 3/9

11:18 am-12:15 am

2 stops24h 57m

$1,205

BangkokSt. Louis

BKK - STL

BKKSTL

Bangkok Suvarnabhumi

Thu 3/5

4:55 pm-1:13 pm

3 stops33h 18m

Lambert-St Louis

Mon 3/9

11:25 am-11:25 am

3 stops36h 00m

$1,405

BangkokSt. Louis

BKK - STL

BKKSTL

Bangkok Suvarnabhumi

Thu 3/5

4:55 pm-1:13 pm

3 stops33h 18m

Lambert-St Louis

Mon 3/9

3:13 pm-11:25 am

3 stops32h 12m

$1,410

BangkokSt. Louis

BKK - STL

BKKSTL

Bangkok Suvarnabhumi

Thu 12/11

10:05 pm-1:29 pm

2 stops28h 24m

Lambert-St Louis

Thu 12/18

6:20 am-5:00 am

2 stops33h 40m

$1,598

BangkokSt. Louis

BKK - STL

BKKSTL

Bangkok Suvarnabhumi

Wed 12/10

2:05 am-11:29 pm

2 stops34h 24m

Lambert-St Louis

Thu 12/18

7:05 am-11:20 pm

2 stops27h 15m

$1,849

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

Prices

Airlines

Other information

What is the cheapest day to depart on your flight to St. Louis?

The cheapest day to depart on your flight to St. Louis is on a Thursday when prices can be found for as low as $1,120. This is often the case because there is less demand to fly during this day of the week. If your travel schedule is flexible, try to avoid departing on a Monday because tickets tend to average around $1,375. These prices are subject to change though, so be sure to set up a Price Alert for flights to St. Louis.

What is the cheapest time of day to depart on your flight to St. Louis?

Flying to St. Louis from Thailand in the morning is the least expensive time of day to depart. momondo users have found prices as low as $1,245 when looking at flights departing in the morning. In the evening is when there is more demand to fly to St. Louis, so prices are often more expensive at around $1,251 per ticket.

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

Direct flights	None

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 October 2025, there are 3 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 1,593 reviews	Search Japan Airlines flights
Air Canada	PriceFrom $1,015	Free Cancellation	Rating 7.1 10,370 reviews	Search Air Canada flights
United Airlines	PriceFrom $1,410	Free Cancellation	Rating 7.4 8,996 reviews	Search United Airlines flights

St. Charles

Chesterfield

Hermann

Fairview Heights

Maryland Heights

Florissant

O'Fallon

Wentzville

Collinsville

Fenton

St. Peters

Alton

Farmington

Festus

Glencoe

Edwardsville

Clayton

Eureka

Litchfield

Shrewsbury

Why use momondo?

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.