Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from St. Louis to Bangkok Suvarnabhumi Airport from $988

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 6/3. 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
0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.

Find the cheapest flights from St. Louis to Bangkok

Cheap round-trip flights

KAYAK's recommended round-trip deals from the most popular airlines that fly from St. Louis to Bangkok.
Qatar Airways Logo
6:30 am - 7:20 pmSTL-BKK
48h 50m2 stops
Qatar Airways Logo
2:30 am - 12:04 amBKK-STL
33h 34m2 stops
$1,057Qatar Airways
Find Deal
Wed, Apr 23 - Tue, May 20
ANA Logo
8:20 am - 6:00 amSTL-BKK
33h 40m2 stops
ANA Logo
9:35 pm - 2:26 pmBKK-STL
28h 51m2 stops
$1,094ANA
Find Deal
Thu, Aug 28 - Wed, Sep 3
Delta Logo
6:30 am - 1:05 amSTL-BKK
30h 35m2 stops
Delta Logo
2:35 am - 12:38 amBKK-STL
34h 03m2 stops
$1,104Delta
Find Deal
Thu, Aug 28 - Tue, Sep 2
United Airlines Logo
1:43 pm - 11:55 pmSTL-BKK
46h 12m2 stops
United Airlines Logo
9:35 am - 4:53 pmBKK-STL
43h 18m2 stops
$1,120United Airlines
Find Deal
Wed, Apr 23 - Wed, May 21
United Airlines Logo
1:43 pm - 11:55 pmSTL-BKK
46h 12m2 stops
United Airlines Logo
7:00 am - 10:45 pmBKK-STL
27h 45m2 stops
$1,123United Airlines
Find Deal
Wed, Apr 30 - Thu, May 15
Cathay Pacific Logo
6:15 am - 11:30 amSTL-BKK
41h 15m2 stops
Cathay Pacific Logo
8:05 am - 10:45 pmBKK-STL
26h 40m2 stops
$1,177Cathay Pacific
Find Deal
Thu, May 1 - Sat, May 31
 Logo
5:54 pm - 11:10 amSTL-BKK
29h 16m2 stops
 Logo
12:25 pm - 2:07 pmBKK-STL
37h 42m2 stops
$1,259
Find Deal
Wed, May 7 - Tue, May 20
Delta Logo
6:40 am - 1:05 amSTL-BKK
30h 25m2 stops
Delta Logo
9:40 pm - 12:38 amBKK-STL
38h 58m2 stops
$1,646Delta
Find Deal
Sun, Jul 6 - Thu, Jul 10
Finnair Logo
10:36 am - 5:30 amSTL-BKK
30h 54m2 stops
Finnair Logo
7:05 am - 11:19 pmBKK-STL
52h 14m2 stops
$1,732Finnair
Find Deal
Mon, Jun 2 - Wed, Jul 2
Finnair Logo
5:27 pm - 5:30 amSTL-BKK
48h 03m2 stops
Finnair Logo
7:05 am - 10:57 pmBKK-STL
27h 52m2 stops
$1,817Finnair
Find Deal
Thu, Jul 17 - Mon, Jul 28

Qatar Airways flights from St. Louis to Bangkok Suvarnabhumi Airport

Our best Qatar Airways deals on St. Louis to Bangkok Suvarnabhumi Airport flight tickets
Qatar Airways
Apr 23
STL6:30 amLambert-St Louis
48h 50m
2 stops
BKK7:20 pmBangkok Suvarnabhumi
May 20
BKK2:30 amBangkok Suvarnabhumi
33h 34m
2 stops
STL12:04 amLambert-St Louis
Qatar Airways
Apr 30
STL6:30 amLambert-St Louis
48h 50m
2 stops
BKK7:20 pmBangkok Suvarnabhumi
May 27
BKK2:30 amBangkok Suvarnabhumi
33h 34m
2 stops
STL12:04 amLambert-St Louis
Qatar Airways
Apr 7
STL6:44 amLambert-St Louis
49h 06m
2 stops
BKK7:50 pmBangkok Suvarnabhumi
Apr 27
BKK2:30 amBangkok Suvarnabhumi
31h 58m
2 stops
STL10:28 pmLambert-St Louis

ANA flights from St. Louis to Bangkok Suvarnabhumi Airport

Our best ANA deals on St. Louis to Bangkok Suvarnabhumi Airport flight tickets
ANA
Aug 28
STL8:20 amLambert-St Louis
33h 40m
2 stops
BKK6:00 amBangkok Suvarnabhumi
Sep 3
BKK9:35 pmBangkok Suvarnabhumi
28h 51m
2 stops
STL2:26 pmLambert-St Louis
ANA
Apr 5
STL9:39 amLambert-St Louis
30h 56m
2 stops
BKK4:35 amBangkok Suvarnabhumi
Apr 7
BKK9:35 pmBangkok Suvarnabhumi
26h 45m
2 stops
STL12:20 pmLambert-St Louis
ANA
Apr 4
STL3:40 pmLambert-St Louis
24h 55m
2 stops
BKK4:35 amBangkok Suvarnabhumi
Apr 6
BKK9:35 pmBangkok Suvarnabhumi
36h 13m
2 stops
STL9:48 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 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 $1,182. 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 $1,434 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 April 2025, prices for St. Louis to Bangkok Suvarnabhumi Airport flights are approximately 21% 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

$988

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 $988. The best round-trip flight deal from St. Louis to Bangkok Suvarnabhumi Airport found on momondo in the last 72 hours is $1,057.
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
Japan AirlinesPriceFrom $1,080Free CancellationRating
8.3
1,440 reviews
Search Japan Airlines flights
DeltaPriceFrom $1,104Free CancellationRating
8.0
7,897 reviews
Search Delta flights
United AirlinesPriceFrom $1,113Free CancellationRating
7.4
8,616 reviews
Search United Airlines flights
American AirlinesPriceFrom $1,114Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
Turkish AirlinesPriceFrom $1,116Free CancellationRating
7.3
3,750 reviews
Search Turkish Airlines flights
ANAPriceFrom $1,125Free CancellationRating
8.3
830 reviews
Search ANA flights
Air CanadaPriceFrom $1,176Free CancellationRating
7.0
9,028 reviews
Search Air Canada flights
Qatar AirwaysPriceFrom $1,213Free CancellationRating
7.4
3,540 reviews
Search Qatar Airways flights
Cathay PacificPriceFrom $1,238Free CancellationRating
7.5
841 reviews
Search Cathay Pacific flights
FinnairPriceFrom $1,340Free CancellationRating
7.6
1,267 reviews
Search Finnair 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
Chonburi
Ko Lan
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.


An easier way to manage your Bangkok Suvarnabhumi Airport trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
From?
To?
Tue 4/8
Tue 4/15

Find better results for your trip to Bangkok

Popular cities in Thailand

Popular flights according to clicks in the last 7 days on momondo