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Cheap flights from St. Louis to Bangkok from $462

1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from St. Louis to Bangkok

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
4:06 pm - 12:05 pmSTL  Lambert-St Louis-BKK Bangkok Suvarnabhumi
30h 59m2 stops Seattle/Tacoma Intl Manila Ninoy Aquino Intl
Multiple Airlines Logo
1:10 pm - 3:08 pmBKK  Bangkok Suvarnabhumi-STL Lambert-St Louis
38h 58m2 stops Manila Ninoy Aquino Intl Seattle/Tacoma Intl
$1,039Multiple Airlines
Wed, Jan 27 - Sun, Feb 7
Multiple Airlines Logo
1:15 pm - 8:10 amSTL  Lambert-St Louis-BKK Bangkok Suvarnabhumi
29h 55m2 stops Washington, D.C. Dulles Intl Rome Fiumicino
Multiple Airlines Logo
12:15 pm - 9:45 pmBKK  Bangkok Suvarnabhumi-STL Lambert-St Louis
46h 30m2 stops Rome Fiumicino Newark
$1,104Multiple Airlines
Mon, Feb 1 - Mon, Feb 15
Qatar Airways Logo
7:21 am - 6:15 amSTL  Lambert-St Louis-BKK Bangkok Suvarnabhumi
33h 54m2 stops Chicago O'Hare Intl Doha Hamad Intl
Qatar Airways Logo
3:00 am - 8:46 pmBKK  Bangkok Suvarnabhumi-STL Lambert-St Louis
30h 46m2 stops Doha Hamad Intl Chicago O'Hare Intl
$1,110Qatar Airways
Wed, Feb 10 - Sun, Feb 21
Qatar Airways Logo
7:21 am - 1:05 pmSTL  Lambert-St Louis-BKK Bangkok Suvarnabhumi
40h 44m2 stops Chicago O'Hare Intl Doha Hamad Intl
Qatar Airways Logo
2:30 am - 10:17 pmBKK  Bangkok Suvarnabhumi-STL Lambert-St Louis
31h 47m2 stops Doha Hamad Intl Chicago O'Hare Intl
$1,117Qatar Airways
Wed, Jan 20 - Tue, Apr 13
Cathay Pacific Logo
6:00 am - 12:15 amSTL  Lambert-St Louis-BKK Bangkok Suvarnabhumi
29h 15m2 stops Los Angeles Hong Kong Intl
Cathay Pacific Logo
5:45 pm - 4:47 pmBKK  Bangkok Suvarnabhumi-STL Lambert-St Louis
36h 02m2 stops Hong Kong Intl Chicago O'Hare Intl
$1,155Cathay Pacific
Wed, Nov 25 - Sat, Dec 12
Cathay Pacific Logo
6:01 am - 11:20 amSTL  Lambert-St Louis-BKK Bangkok Suvarnabhumi
40h 19m2 stops Los Angeles Hong Kong Intl
Cathay Pacific Logo
7:30 am - 10:34 pmBKK  Bangkok Suvarnabhumi-STL Lambert-St Louis
28h 04m2 stops Hong Kong Intl Chicago O'Hare Intl
$1,156Cathay Pacific
Thu, Jan 28 - Wed, Feb 3
Japan Airlines Logo
7:21 am - 11:35 pmSTL  Lambert-St Louis-BKK Bangkok Suvarnabhumi
27h 14m2 stops Chicago O'Hare Intl Tokyo Narita
Japan Airlines Logo
1:00 am - 11:36 pmBKK  Bangkok Suvarnabhumi-STL Lambert-St Louis
35h 36m2 stops Osaka Kansai Intl Los Angeles
$1,185Japan Airlines
Mon, Jan 11 - Tue, Jan 26
Delta Logo
6:20 am - 12:20 amSTL  Lambert-St Louis-BKK Bangkok Suvarnabhumi
29h 00m2 stops Detroit Metropolitan Wayne County Incheon Intl
Delta Logo
9:40 pm - 11:39 pmBKK  Bangkok Suvarnabhumi-STL Lambert-St Louis
38h 59m2 stops Incheon Intl Atlanta Hartsfield-Jackson
$1,199Delta
Wed, Feb 10 - Sun, Feb 28
Delta Logo
6:00 am - 9:30 pmSTL  Lambert-St Louis-BKK Bangkok Suvarnabhumi
26h 30m2 stops Atlanta Hartsfield-Jackson Incheon Intl
Delta Logo
9:40 pm - 11:39 pmBKK  Bangkok Suvarnabhumi-STL Lambert-St Louis
38h 59m2 stops Incheon Intl Atlanta Hartsfield-Jackson
$1,199Delta
Thu, Feb 11 - Sun, Feb 21
Japan Airlines Logo
11:08 am - 11:35 pmSTL  Lambert-St Louis-BKK Bangkok Suvarnabhumi
47h 27m2 stops Chicago O'Hare Intl Tokyo Narita
Japan Airlines Logo
7:55 am - 1:15 pmBKK  Bangkok Suvarnabhumi-STL Lambert-St Louis
42h 20m2 stops Tokyo Narita Chicago O'Hare Intl
$1,204Japan Airlines
Sun, Jan 10 - Sun, Jan 24

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Qatar Airways flights from St. Louis to Bangkok

Our best Qatar Airways deals on St. Louis to Bangkok flight tickets
Qatar Airways
Feb 10
STL7:21 amLambert-St Louis
33h 54m
2 stops
BKK6:15 amBangkok Suvarnabhumi
Feb 21
BKK3:00 amBangkok Suvarnabhumi
30h 46m
2 stops
STL8:46 pmLambert-St Louis
$1,110
Qatar Airways
Feb 10
STL7:21 amLambert-St Louis
40h 44m
2 stops
BKK1:05 pmBangkok Suvarnabhumi
Feb 21
BKK2:00 amBangkok Suvarnabhumi
30h 32m
2 stops
STL7:32 pmLambert-St Louis
$1,117
Qatar Airways
Feb 11
STL2:21 pmLambert-St Louis
27h 19m
2 stops
BKK6:40 amBangkok Suvarnabhumi
Mar 1
BKK3:00 amBangkok Suvarnabhumi
29h 32m
2 stops
STL7:32 pmLambert-St Louis
$1,130

Cathay Pacific flights from St. Louis to Bangkok

Our best Cathay Pacific deals on St. Louis to Bangkok flight tickets
Cathay Pacific
Nov 25
STL6:00 amLambert-St Louis
29h 15m
2 stops
BKK12:15 amBangkok Suvarnabhumi
Dec 12
BKK5:45 pmBangkok Suvarnabhumi
36h 02m
2 stops
STL4:47 pmLambert-St Louis
$1,155
Cathay Pacific
Nov 25
STL6:00 amLambert-St Louis
29h 15m
2 stops
BKK12:15 amBangkok Suvarnabhumi
Dec 12
BKK7:15 pmBangkok Suvarnabhumi
34h 32m
2 stops
STL4:47 pmLambert-St Louis
$1,156
Cathay Pacific
Nov 25
STL6:00 amLambert-St Louis
29h 15m
2 stops
BKK12:15 amBangkok Suvarnabhumi
Dec 12
BKK7:15 pmBangkok Suvarnabhumi
34h 32m
2 stops
STL4:47 pmLambert-St Louis
$1,187

momondo Fare Finder

 
Use the filters below to find and compare flights from St. Louis to Bangkok 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

Wed 1/27

4:06 pm-12:05 pm

2 stops30h 59m

Bangkok Suvarnabhumi

Sun 2/7

1:10 pm-3:08 pm

2 stops38h 58m

$1,039

St. LouisBangkok

STL Lambert-St Louis - BKK Bangkok Suvarnabhumi

STLBKK

Lambert-St Louis

Mon 2/1

1:15 pm-8:10 am

2 stops29h 55m

Bangkok Suvarnabhumi

Mon 2/15

12:15 pm-9:45 pm

2 stops46h 30m

$1,104

St. LouisBangkok

STL Lambert-St Louis - BKK Bangkok Suvarnabhumi

STLBKK

Lambert-St Louis

Wed 2/10

7:21 am-6:15 am

2 stops33h 54m

Bangkok Suvarnabhumi

Sun 2/21

3:00 am-8:46 pm

2 stops30h 46m

$1,110

St. LouisBangkok

STL Lambert-St Louis - BKK Bangkok Suvarnabhumi

STLBKK

Lambert-St Louis

Wed 1/20

7:21 am-1:05 pm

2 stops40h 44m

Bangkok Suvarnabhumi

Tue 4/13

2:30 am-10:17 pm

2 stops31h 47m

$1,117

St. LouisBangkok

STL Lambert-St Louis - BKK Bangkok Suvarnabhumi

STLBKK

Lambert-St Louis

Wed 11/25

6:00 am-12:15 am

2 stops29h 15m

Bangkok Suvarnabhumi

Sat 12/12

5:45 pm-4:47 pm

2 stops36h 02m

$1,155

St. LouisBangkok

STL Lambert-St Louis - BKK Bangkok Suvarnabhumi

STLBKK

Lambert-St Louis

Thu 1/28

6:01 am-11:20 am

2 stops40h 19m

Bangkok Suvarnabhumi

Wed 2/3

7:30 am-10:34 pm

2 stops28h 04m

$1,156
Quickest round-trip

St. LouisBangkok

STL Lambert-St Louis - BKK Bangkok Suvarnabhumi

STLBKK

Lambert-St Louis

Mon 1/11

7:21 am-11:35 pm

2 stops27h 14m

Bangkok Suvarnabhumi

Tue 1/26

1:00 am-11:36 pm

2 stops35h 36m

$1,185

St. LouisBangkok

STL Lambert-St Louis - BKK Bangkok Suvarnabhumi

STLBKK

Lambert-St Louis

Wed 2/10

6:20 am-12:20 am

2 stops29h 00m

Bangkok Suvarnabhumi

Sun 2/28

9:40 pm-11:39 pm

2 stops38h 59m

$1,199

St. LouisBangkok

STL Lambert-St Louis - BKK Bangkok Suvarnabhumi

STLBKK

Lambert-St Louis

Thu 2/11

6:00 am-9:30 pm

2 stops26h 30m

Bangkok Suvarnabhumi

Sun 2/21

9:40 pm-11:39 pm

2 stops38h 59m

$1,199

St. LouisBangkok

STL Lambert-St Louis - BKK Bangkok Suvarnabhumi

STLBKK

Lambert-St Louis

Sun 1/10

11:08 am-11:35 pm

2 stops47h 27m

Bangkok Suvarnabhumi

Sun 1/24

7:55 am-1:15 pm

2 stops42h 20m

$1,204

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Bangkok from

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

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 typical price of a round-trip flight between St. Louis and Bangkok?

Prices are currently low for flights on this route.

Typical prices usually range from $1,218 to $1,428.
The lowest price recently found on this route was $1,039.

What is the cheapest month to fly to Bangkok?

If you aren’t able to travel during the month of February, then book flights to Bangkok from St. Louis during August instead. Flights to Bangkok in August, while not as cheap as those in February, still average around $1,031.

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

You are more likely to see cheaper flights to Bangkok from St. Louis when booking weeks ahead of your departure date. In general, you can expect to find flights to Bangkok for around $1,355 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Bangkok from St. Louis for as low as $1,009 on momondo.

Cheap St. Louis to Bangkok flight deals and tips

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

Best Price Found

$462

Fastest flight time

28h 51m

Direct flights

None
The best one-way flight to Bangkok from St. Louis in the past 72 hours is $462. The best round-trip flight deal from St. Louis to Bangkok found on momondo in the last 72 hours is $1,039.
The fastest flight from St. Louis to Bangkok takes 28h 51m
There are no direct flights from St. Louis to Bangkok. There are no popular flight routes from St. Louis to Bangkok.
Search flight deals

Frequently asked questions about flying from St. Louis to Bangkok

  • How far is Lambert-St Louis to Bangkok by plane?

    A flight from Lambert-St Louis to Bangkok will travel around 8745.3 mi. Typically, this will take 28h 51m by plane in normal conditions.

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

    Prices for flights from Lambert-St Louis Airport to Bangkok are updated daily.

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

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

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Lambert-St Louis Airport to Bangkok.

  • What documentation or ID do you need to fly to Bangkok?

    The travel and health documents you'll need for your trip to Bangkok may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Bangkok. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best airlines flying from St. Louis to Bangkok

Compare and see reviews for airlines that fly from St. Louis to Bangkok with momondo
Airline
Rating
Free Cancellation
Price
Korean AirPriceFrom $793Free CancellationRating
8.4
1,219 reviews
Search Korean Air flights
DeltaPriceFrom $881Free CancellationRating
7.8
8,696 reviews
Search Delta flights
Qatar AirwaysPriceFrom $946Free CancellationRating
7.4
3,712 reviews
Search Qatar Airways flights
American AirlinesPriceFrom $948Free CancellationRating
7.0
12,229 reviews
Search American Airlines flights
Cathay PacificPriceFrom $974Free CancellationRating
7.6
1,537 reviews
Search Cathay Pacific flights
Japan AirlinesPriceFrom $976Free CancellationRating
8.3
1,963 reviews
Search Japan Airlines flights
United AirlinesPriceFrom $992Free CancellationRating
7.3
10,460 reviews
Search United Airlines flights
ANAPriceFrom $1,124Free CancellationRating
8.3
1,339 reviews
Search ANA flights

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?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Bangkok from St. Louis.

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

Of course. momondo tracks the price of St. Louis to Bangkok flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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Find better results for your trip to Thailand

Fly into one of these airports located in Bangkok

Bangkok Suvarnabhumi Airport
Bangkok Don Mueang Intl Airport