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Cheap flights from Thailand to St. Louis from $554

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Thailand to St. Louis departing on 5/13. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Find the cheapest flights from Thailand to St. Louis

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

Enter your travel dates to find the best prices.
Japan Airlines Logo
7:55 am - 11:08 pm
BKK
-
STL
27h 13m
2 stops
Japan Airlines Logo
8:35 am - 5:50 am
STL
-
BKK
33h 15m
2 stops
$1,207Japan Airlines
Fri, Aug 28 - Tue, Sep 1
Japan Airlines Logo
7:55 am - 11:08 pm
BKK
-
STL
27h 13m
2 stops
Japan Airlines Logo
8:35 am - 5:50 am
STL
-
BKK
33h 15m
2 stops
$1,234Japan Airlines
Fri, Aug 28 - Tue, Sep 1
Japan Airlines Logo
9:40 pm - 11:08 pm
BKK
-
STL
37h 28m
2 stops
Japan Airlines Logo
7:23 am - 5:45 am
STL
-
BKK
34h 22m
2 stops
$1,283Japan Airlines
Fri, Aug 28 - Tue, Sep 1
Japan Airlines Logo
9:40 pm - 11:08 pm
BKK
-
STL
37h 28m
2 stops
Japan Airlines Logo
7:23 am - 5:45 am
STL
-
BKK
34h 22m
2 stops
$1,294Japan Airlines
Fri, Aug 28 - Tue, Sep 1
United Airlines Logo
9:35 am - 6:24 pm
BKK
-
STL
44h 49m
2 stops
United Airlines Logo
5:32 pm - 9:35 am
STL
-
BKK
28h 03m
3 stops
$1,419United Airlines
Fri, Aug 28 - Tue, Sep 1
United Airlines Logo
7:00 am - 11:50 pm
BKK
-
STL
28h 50m
2 stops
United Airlines Logo
1:18 pm - 9:35 am
STL
-
BKK
32h 17m
3 stops
$1,420United Airlines
Fri, Aug 28 - Tue, Sep 1
United Airlines Logo
3:45 pm - 8:37 am
BKK
-
STL
28h 52m
3 stops
United Airlines Logo
4:40 pm - 9:35 am
STL
-
BKK
28h 55m
3 stops
$1,428United Airlines
Fri, Aug 28 - Tue, Sep 1
United Airlines Logo
9:35 am - 6:24 pm
BKK
-
STL
44h 49m
2 stops
United Airlines Logo
4:40 pm - 9:35 am
STL
-
BKK
28h 55m
3 stops
$1,429United Airlines
Fri, Aug 28 - Tue, Sep 1
United Airlines Logo
3:45 pm - 10:09 am
BKK
-
STL
30h 24m
3 stops
United Airlines Logo
5:32 pm - 9:35 am
STL
-
BKK
28h 03m
3 stops
$1,430United Airlines
Fri, Aug 28 - Tue, Sep 1
United Airlines Logo
9:35 am - 6:24 pm
BKK
-
STL
44h 49m
2 stops
United Airlines Logo
4:40 pm - 9:35 am
STL
-
BKK
28h 55m
3 stops
$1,442United Airlines
Fri, Aug 28 - Tue, Sep 1

United Airlines flights from Thailand to St. Louis

Our best United Airlines deals on Thailand to St. Louis flight tickets
United Airlines
Aug 28
BKK9:35 amBangkok Suvarnabhumi
44h 49m
2 stops
STL6:24 pmLambert-St Louis
Sep 1
STL5:32 pmLambert-St Louis
28h 03m
3 stops
BKK9:35 amBangkok Suvarnabhumi
$1,419
United Airlines
Aug 28
BKK7:00 amBangkok Suvarnabhumi
28h 50m
2 stops
STL11:50 pmLambert-St Louis
Sep 1
STL1:18 pmLambert-St Louis
32h 17m
3 stops
BKK9:35 amBangkok Suvarnabhumi
$1,420
United Airlines
Aug 28
BKK3:45 pmBangkok Suvarnabhumi
28h 52m
3 stops
STL8:37 amLambert-St Louis
Sep 1
STL4:40 pmLambert-St Louis
28h 55m
3 stops
BKK9:35 amBangkok Suvarnabhumi
$1,428

Japan Airlines flights from Thailand to St. Louis

Our best Japan Airlines deals on Thailand to St. Louis flight tickets
Japan Airlines
Aug 28
BKK7:55 amBangkok Suvarnabhumi
27h 13m
2 stops
STL11:08 pmLambert-St Louis
Sep 1
STL8:35 amLambert-St Louis
33h 15m
2 stops
BKK5:50 amBangkok Suvarnabhumi
$1,207
Japan Airlines
Aug 28
BKK7:55 amBangkok Suvarnabhumi
27h 13m
2 stops
STL11:08 pmLambert-St Louis
Sep 1
STL8:35 amLambert-St Louis
33h 15m
2 stops
BKK5:50 amBangkok Suvarnabhumi
$1,234
Japan Airlines
Aug 28
BKK9:40 pmBangkok Suvarnabhumi
37h 28m
2 stops
STL11:08 pmLambert-St Louis
Sep 1
STL7:23 amLambert-St Louis
34h 22m
2 stops
BKK5:45 amBangkok Suvarnabhumi
$1,283

momondo Fare Finder

 
Customize your flight search to find flights from Thailand to St. Louis 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, momondo users made 832,500 searches. Data last updated March 14, 2026.
Use the filters below to find and compare flights from Thailand to St. Louis that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BangkokSt. Louis

BKK - STL

BKKSTL

Bangkok Suvarnabhumi

Fri 8/28

7:55 am-11:08 pm

2 stops27h 13m

Lambert-St Louis

Tue 9/1

8:35 am-5:50 am

2 stops33h 15m

$1,207

BangkokSt. Louis

BKK - STL

BKKSTL

Bangkok Suvarnabhumi

Fri 8/28

7:55 am-11:08 pm

2 stops27h 13m

Lambert-St Louis

Tue 9/1

8:35 am-5:50 am

2 stops33h 15m

$1,234

BangkokSt. Louis

BKK - STL

BKKSTL

Bangkok Suvarnabhumi

Fri 8/28

9:40 pm-11:08 pm

2 stops37h 28m

Lambert-St Louis

Tue 9/1

7:23 am-5:45 am

2 stops34h 22m

$1,283

BangkokSt. Louis

BKK - STL

BKKSTL

Bangkok Suvarnabhumi

Fri 8/28

9:40 pm-11:08 pm

2 stops37h 28m

Lambert-St Louis

Tue 9/1

7:23 am-5:45 am

2 stops34h 22m

$1,294

BangkokSt. Louis

BKK - STL

BKKSTL

Bangkok Suvarnabhumi

Fri 8/28

9:35 am-6:24 pm

2 stops44h 49m

Lambert-St Louis

Tue 9/1

5:32 pm-9:35 am

3 stops28h 03m

$1,419

BangkokSt. Louis

BKK - STL

BKKSTL

Bangkok Suvarnabhumi

Fri 8/28

7:00 am-11:50 pm

2 stops28h 50m

Lambert-St Louis

Tue 9/1

1:18 pm-9:35 am

3 stops32h 17m

$1,420
Quickest round-trip

BangkokSt. Louis

BKK - STL

BKKSTL

Bangkok Suvarnabhumi

Fri 8/28

3:45 pm-8:37 am

3 stops28h 52m

Lambert-St Louis

Tue 9/1

4:40 pm-9:35 am

3 stops28h 55m

$1,428

BangkokSt. Louis

BKK - STL

BKKSTL

Bangkok Suvarnabhumi

Fri 8/28

9:35 am-6:24 pm

2 stops44h 49m

Lambert-St Louis

Tue 9/1

4:40 pm-9:35 am

3 stops28h 55m

$1,429

BangkokSt. Louis

BKK - STL

BKKSTL

Bangkok Suvarnabhumi

Fri 8/28

3:45 pm-10:09 am

3 stops30h 24m

Lambert-St Louis

Tue 9/1

5:32 pm-9:35 am

3 stops28h 03m

$1,430

BangkokSt. Louis

BKK - STL

BKKSTL

Bangkok Suvarnabhumi

Fri 8/28

9:35 am-6:24 pm

2 stops44h 49m

Lambert-St Louis

Tue 9/1

4:40 pm-9:35 am

3 stops28h 55m

$1,442

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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2

See travel insights to St. Louis from

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

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

Philippine Airlines, Delta, and Turkish Airlines 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

35h 36m

Direct flights

None
The fastest flight from Thailand to St. Louis takes 35h 36m
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?

  • 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 AirlinesPriceFrom $952Free CancellationRating
8.3
1,730 reviews
Search Japan Airlines flights
United AirlinesPriceFrom $1,410Free CancellationRating
7.4
9,419 reviews
Search United Airlines flights

Traveling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
St. Charles
Chesterfield
Hermann
Fairview Heights
Florissant
Maryland Heights
O'Fallon
Collinsville
St. Peters
Fenton
Alton
Wentzville
Farmington
Edwardsville
Festus
Clayton
Eureka
Litchfield
Glencoe
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.

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