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Cheap flights from St. Louis to Bangkok Suvarnabhumi Airport from $497

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 Suvarnabhumi Airport departing on 3/30. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from St. Louis to Bangkok

Cheap round-trip flights

These are some of the best round-trip flight deals from St. Louis to Bangkok that have been recently found on momondo from popular airlines, departing in the coming months.
6:50 am - 9:30 pmSTL-BKK
26h 40m2 stops
9:40 pm - 11:04 pmBKK-STL
37h 24m2 stops
$1,104Delta
Find Deal
Wed, Mar 26 - Wed, Apr 9
6:15 am - 12:10 amSTL-BKK
29h 55m2 stops
11:40 am - 11:09 pmBKK-STL
23h 29m2 stops
$1,137Cathay Pacific
Find Deal
Wed, Mar 19 - Wed, Mar 26
6:00 am - 9:30 pmSTL-BKK
27h 30m2 stops
9:40 pm - 11:04 pmBKK-STL
37h 24m2 stops
$1,144Delta
Find Deal
Fri, Mar 28 - Wed, Apr 9
6:44 am - 6:15 amSTL-BKK
35h 31m2 stops
8:40 am - 10:20 pmBKK-STL
49h 40m2 stops
$1,338Qatar Airways
Find Deal
Mon, Apr 7 - Wed, Apr 16
10:17 am - 6:15 amSTL-BKK
31h 58m2 stops
8:40 am - 10:19 pmBKK-STL
49h 39m2 stops
$1,349Qatar Airways
Find Deal
Mon, Apr 7 - Mon, Apr 28
6:15 am - 11:50 pmSTL-BKK
29h 35m2 stops
8:05 am - 10:26 pmBKK-STL
26h 21m2 stops
$1,378Cathay Pacific
Find Deal
Thu, May 1 - Tue, Jul 15
11:20 am - 4:35 amSTL-BKK
29h 15m2 stops
7:00 am - 10:15 pmBKK-STL
27h 15m3 stops
$2,055United Airlines
Find Deal
Sun, May 25 - Thu, Jun 5
1:10 pm - 4:35 amSTL-BKK
27h 25m2 stops
7:00 am - 10:27 pmBKK-STL
27h 27m3 stops
$2,920United Airlines
Find Deal
Sun, Jun 15 - Sat, Jun 21
9:39 am - 11:55 pmSTL-BKK
26h 16m2 stops
1:55 pm - 12:20 pmBKK-STL
34h 25m2 stops
$5,850ANA
Find Deal
Thu, Apr 17 - Mon, Apr 28
3:35 pm - 4:35 amSTL-BKK
25h 00m2 stops
7:00 am - 9:04 pmBKK-STL
26h 04m2 stops
$15,937ANA
Find Deal
Mon, Jul 14 - Thu, Aug 21

Delta flights from St. Louis to Bangkok Suvarnabhumi Airport

Our best Delta deals on St. Louis to Bangkok Suvarnabhumi Airport flight tickets
Delta
Mar 26
STL6:50 amLambert-St Louis
26h 40m
2 stops
BKK9:30 pmBangkok Suvarnabhumi
Apr 9
BKK9:40 pmBangkok Suvarnabhumi
37h 24m
2 stops
STL11:04 pmLambert-St Louis
Delta
Mar 28
STL6:00 amLambert-St Louis
27h 30m
2 stops
BKK9:30 pmBangkok Suvarnabhumi
Apr 9
BKK9:40 pmBangkok Suvarnabhumi
37h 24m
2 stops
STL11:04 pmLambert-St Louis

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
Mar 19
STL6:15 amLambert-St Louis
29h 55m
2 stops
BKK12:10 amBangkok Suvarnabhumi
Mar 26
BKK11:40 amBangkok Suvarnabhumi
23h 29m
2 stops
STL11:09 pmLambert-St Louis
Cathay Pacific
May 1
STL6:15 amLambert-St Louis
29h 35m
2 stops
BKK11:50 pmBangkok Suvarnabhumi
Jul 15
BKK8:05 amBangkok Suvarnabhumi
26h 21m
2 stops
STL10:26 pmLambert-St Louis
Cathay Pacific
Apr 3
STL11:55 amLambert-St Louis
23h 55m
2 stops
BKK11:50 pmBangkok Suvarnabhumi
Apr 16
BKK3:00 pmBangkok Suvarnabhumi
44h 16m
2 stops
STL11:16 pmLambert-St Louis

See travel insights to Bangkok from

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

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?

The month of February is, on average, the cheapest month to fly to Bangkok Suvarnabhumi Airport from St. Louis, with most prices found around $1,184. The month of January is another great option to travel to Bangkok Suvarnabhumi Airport, with average flight prices from St. Louis averaging around $1,195.

What is the cheapest day to depart on your flight to Bangkok Suvarnabhumi Airport?

The cheapest day to depart on your flight to Bangkok Suvarnabhumi Airport is on a Monday when prices can be found for as low as $1,334. This is often the case because there is less demand to fly during this day of the week. On the other hand, Thursday is the most expensive day to depart from St. Louis because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $1,546.

What is the cheapest time of day to depart on your flight to Bangkok Suvarnabhumi Airport?

Our most recent data shows that the best time of day to fly to Bangkok Suvarnabhumi Airport is in the morning. Flights from St. Louis to Bangkok Suvarnabhumi Airport during this time can be as low as $1,339. At noon is when there is more demand to fly to Bangkok Suvarnabhumi Airport, so prices are often more expensive at around $1,754 per ticket.

How far in advance should I book a flight to Bangkok Suvarnabhumi Airport?

You are more likely to see cheaper flights to Bangkok Suvarnabhumi Airport from St. Louis when booking 26 weeks ahead of your departure date. In general, you can expect to find flights to Bangkok Suvarnabhumi Airport for around $1,453 when searching 26 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 $1,242 on momondo.

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

As of February 2025, prices for St. Louis to Bangkok Suvarnabhumi Airport flights are approximately 18% cheaper when compared to flights at the same time last year.

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

$497

Fastest flight time

23h 50m

Direct flights

None
The best one-way flight to Bangkok Suvarnabhumi Airport from St. Louis in the past 72 hours is $497. The best round-trip flight deal from St. Louis to Bangkok Suvarnabhumi Airport found on momondo in the last 72 hours is $1,104.
The fastest flight from St. Louis to Bangkok Suvarnabhumi Airport takes 23h 50m
There are no direct flights from St. Louis to Bangkok Suvarnabhumi Airport. Popular non-direct route for this connection is Lambert-St Louis Airport - 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 23h 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?

  • 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?


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
American AirlinesPriceFrom $244Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
Japan AirlinesPriceFrom $1,080Free CancellationRating
8.3
1,440 reviews
Search Japan Airlines flights
DeltaPriceFrom $1,104Free CancellationRating
8.0
8,220 reviews
Search Delta flights
United AirlinesPriceFrom $1,113Free CancellationRating
7.4
8,766 reviews
Search United Airlines flights
Turkish AirlinesPriceFrom $1,116Free CancellationRating
7.3
3,832 reviews
Search Turkish Airlines flights
ANAPriceFrom $1,125Free CancellationRating
8.4
842 reviews
Search ANA flights
FinnairPriceFrom $1,249Free CancellationRating
7.6
1,273 reviews
Search Finnair flights
Cathay PacificPriceFrom $1,265Free CancellationRating
7.5
821 reviews
Search Cathay Pacific flights
Qatar AirwaysPriceFrom $1,272Free CancellationRating
7.4
3,609 reviews
Search Qatar Airways flights

Traveling to a place near Bangkok?

Book flights to Bangkok if you plan to visit one of these locations
Pattaya
Ko Samet
Kanchanaburi
Cha-am
Ayutthaya
Ko Lan
Chonburi
Sattahip
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.


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