Which airports can I use when flying from St. Louis to Bangkok Suvarnabhumi Airport?

Flights from St. Louis to Bangkok Suvarnabhumi Airport usually depart from Lambert-St Louis (STL) and arrive at Bangkok Suvarnabhumi (BKK).

What cabin classes can I book on flights from St. Louis to Bangkok Suvarnabhumi Airport?

Four cabin classes are available on flights from St. Louis to Bangkok Suvarnabhumi Airport: • Economy Class • Premium Economy Class • Business Class • First Class Prices vary by airline.

Can I save money by using flexible dates for flights from St. Louis to Bangkok Suvarnabhumi Airport?

Yes. Flexible dates can save you up to 24% on flights from St. Louis to Bangkok Suvarnabhumi Airport. Monday is the cheapest departure day at $1,115 round-trip on average, while Friday is the most expensive at $1,454, a difference of $339. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

What popular places can I visit in Bangkok Suvarnabhumi Airport?

Some of the most popular sights in Bangkok Suvarnabhumi Airport are Pratunam, Siam Square and Thailand Cultural Center. These are among the most viewed places in Bangkok Suvarnabhumi Airport on KAYAK.

How expensive are last-minute St. Louis to Bangkok Suvarnabhumi Airport flights?

Last-minute fares on this route (booked within two weeks of departure) run 10% above the $1,223 route average. Book 21 weeks before departure for the lowest fares.

Do I need a passport to fly from St. Louis to Bangkok Suvarnabhumi Airport?

Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

How are flight prices from St. Louis to Bangkok Suvarnabhumi Airport looking right now?

One-way fares from St. Louis to Bangkok Suvarnabhumi Airport are currently lower than usual. Average one-way flight prices are about $570, which is 13% below the typical average for this route.

What is the time difference between St. Louis and Bangkok Suvarnabhumi Airport?

Bangkok Suvarnabhumi Airport is 12 hours ahead of St. Louis (Indochina Time vs Central Time). Plan for the time shift when scheduling connections or first-day activities.

What car rental options are available at Bangkok Suvarnabhumi Airport (BKK)?

Bangkok Suvarnabhumi Airport (BKK) hosts 5 major car rental companies, with daily rates starting from around $13 for economy cars. Top options include: • Drive Car Rental • Alamo • Sixt • Yesaway • Hertz

How much should I expect to pay for a St. Louis to Bangkok Suvarnabhumi Airport flight?

Round-trip flights from St. Louis to Bangkok Suvarnabhumi Airport range from $1,042 to $1,456, with an average of $1,223 over the past 12 months. Anything below $1,042 counts as a good deal.

What's the cheapest day of the week to fly from St. Louis to Bangkok Suvarnabhumi Airport?

Based on deals KAYAK users found in the last 12 months, Monday is the cheapest day of the week to fly from St. Louis to Bangkok Suvarnabhumi Airport. It’s 9% cheaper than the average day, while Friday is the most expensive, with prices 18% higher.

What’s the cheapest month to fly from St. Louis to Bangkok Suvarnabhumi Airport?

•September is the cheapest month to fly from St. Louis to Bangkok Suvarnabhumi Airport at $1,009 round-trip. •December ($1,735) and June ($1,580) are the most expensive months. •The price difference between flying in the cheapest and most expensive months is 71% on average. This is based on KAYAK aggregated and averaged internal data over the past 12 months.

When are flights from St. Louis to Bangkok Suvarnabhumi Airport the cheapest?

Flights from St. Louis to Bangkok Suvarnabhumi Airport are cheapest 21 weeks before departure. Booking in this window typically costs about 26% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.

Which airline is the cheapest to fly from St. Louis to Bangkok Suvarnabhumi Airport?

Qatar Airways ($1,053) and Japan Airlines ($1,114) are the cheapest airlines to fly round-trip from St. Louis to Bangkok Suvarnabhumi Airport according to KAYAK data over the last 5 days.

Cheap Flights from St. Louis to Bangkok | KAYAK

Save 21% or more on flights. Compare deals from all over the web.

Never overpay with our price tracking tools.

Filter searches by price, airline and more to find your best flights.

Cheapest round-trip

$904

Typical prices: $1,042-$1,456

Multiple Airlines

Wed 11/21Tue 12/4

STL - BKK • 2 stops

Cheapest one-way

$504

Typical prices: $549-$757

Multiple Airlines

Wed 10/31

STL - BKK • 3 stops

When to book

21 weeks

in advance

Our data shows that travelers who book at least 21 weeks in advance save around 26% compared to booking last minute.

Insights

When to travel

September

Cheapest • 17% price drop

February

Most popular

Good to know

Start a new search

KAYAK searches 100s of sites at once to find you the best travel deals.

We hope you love your trip to Bangkok Suvarnabhumi Airport!

Flight Deals

Cheap Flights from St. Louis to Bangkok (STL-BKK)

Discover the best prices for you by selecting your travel dates on KAYAK.

Round-trip

One-way

Last minute

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

Tue, Nov 24 - Sun, Dec 6

1:08 pm - 8:10 amSTL Lambert-St Louis-BKK Bangkok Suvarnabhumi

30h 02m2 stops Chicago O'Hare Intl Rome Fiumicino

12:15 pm - 10:15 pmBKK Bangkok Suvarnabhumi-STL Lambert-St Louis

47h 00m2 stops Rome Fiumicino Newark

$904Multiple Airlines

Sun, Nov 22 - Fri, Dec 4

1:08 pm - 8:10 amSTL Lambert-St Louis-BKK Bangkok Suvarnabhumi

30h 02m2 stops Chicago O'Hare Intl Rome Fiumicino

12:15 pm - 9:29 pmBKK Bangkok Suvarnabhumi-STL Lambert-St Louis

46h 14m2 stops Rome Fiumicino Chicago O'Hare Intl

$904Multiple Airlines

Wed, Feb 10 - Mon, Feb 22

11:50 am - 6:15 amSTL Lambert-St Louis-BKK Bangkok Suvarnabhumi

29h 25m2 stops Chicago O'Hare Intl Doha Hamad Intl

8:35 pm - 11:58 pmBKK Bangkok Suvarnabhumi-STL Lambert-St Louis

40h 23m2 stops Doha Hamad Intl Chicago O'Hare Intl

$1,053Qatar Airways

Wed, Feb 10 - Sun, Feb 21

11:50 am - 6:15 amSTL Lambert-St Louis-BKK Bangkok Suvarnabhumi

29h 25m2 stops Chicago O'Hare Intl Doha Hamad Intl

2:00 am - 9:08 pmBKK Bangkok Suvarnabhumi-STL Lambert-St Louis

32h 08m2 stops Doha Hamad Intl Chicago O'Hare Intl

$1,063Qatar Airways

Tue, Dec 1 - Sun, Feb 7

7:26 am - 5:05 amSTL Lambert-St Louis-BKK Bangkok Suvarnabhumi

32h 39m2 stops Chicago O'Hare Intl Tokyo Haneda

1:00 am - 11:36 pmBKK Bangkok Suvarnabhumi-STL Lambert-St Louis

35h 36m2 stops Osaka Kansai Intl Los Angeles

$1,114Japan Airlines

Thu, Dec 3 - Tue, Jan 26

7:27 am - 5:05 amSTL Lambert-St Louis-BKK Bangkok Suvarnabhumi

32h 38m2 stops Chicago O'Hare Intl Tokyo Haneda

10:05 pm - 5:18 pmBKK Bangkok Suvarnabhumi-STL Lambert-St Louis

32h 13m2 stops Tokyo Haneda Chicago O'Hare Intl

$1,119Japan Airlines

Thu, Jan 21 - Wed, Feb 10

6:30 am - 9:30 pmSTL Lambert-St Louis-BKK Bangkok Suvarnabhumi

26h 00m2 stops Minneapolis St Paul Incheon Intl

1:05 am - 11:18 pmBKK Bangkok Suvarnabhumi-STL Lambert-St Louis

35h 13m2 stops Incheon Intl Minneapolis St Paul

$1,140Delta

Mon, Jan 18 - Wed, Feb 10

6:30 am - 9:30 pmSTL Lambert-St Louis-BKK Bangkok Suvarnabhumi

26h 00m2 stops Minneapolis St Paul Incheon Intl

1:05 am - 11:18 pmBKK Bangkok Suvarnabhumi-STL Lambert-St Louis

35h 13m2 stops Incheon Intl Minneapolis St Paul

$1,140Delta

Wed, Jan 20 - Tue, Feb 9

9:05 am - 5:10 amSTL Lambert-St Louis-BKK Bangkok Suvarnabhumi

31h 05m2 stops Chicago O'Hare Intl Tokyo Haneda

9:10 am - 7:28 pmBKK Bangkok Suvarnabhumi-STL Lambert-St Louis

23h 18m2 stops Tokyo Haneda Chicago O'Hare Intl

$1,145United Airlines

Wed, Jan 20 - Mon, Feb 8

9:05 am - 5:10 amSTL Lambert-St Louis-BKK Bangkok Suvarnabhumi

31h 05m2 stops Chicago O'Hare Intl Tokyo Haneda

9:10 am - 7:28 pmBKK Bangkok Suvarnabhumi-STL Lambert-St Louis

23h 18m2 stops Tokyo Haneda Chicago O'Hare Intl

$1,145United Airlines

Recent last minute flight deals from St. Louis to Bangkok

Fri, Oct 9 - Wed, Oct 21

7:29 am - 12:55 amSTL Lambert-St Louis-BKK Bangkok Suvarnabhumi

29h 26m2 stops Chicago O'Hare Intl Abu Dhabi Zayed Intl

3:15 am - 12:19 amBKK Bangkok Suvarnabhumi-STL Lambert-St Louis

33h 04m2 stops Abu Dhabi Zayed Intl Chicago O'Hare Intl

$1,057Multiple Airlines

Mon, Oct 5 - Wed, Oct 7

5:00 am - 12:55 amSTL Lambert-St Louis-BKK Bangkok Suvarnabhumi

31h 55m2 stops Chicago O'Hare Intl Abu Dhabi Zayed Intl

9:00 pm - 12:19 amBKK Bangkok Suvarnabhumi-STL Lambert-St Louis

39h 19m2 stops Abu Dhabi Zayed Intl Chicago O'Hare Intl

$1,057Multiple Airlines

Mon, Oct 5 - Mon, Oct 26

6:04 am - 4:40 amSTL Lambert-St Louis-BKK Bangkok Suvarnabhumi

34h 36m2 stops Los Angeles Osaka Kansai Intl

7:55 am - 11:59 pmBKK Bangkok Suvarnabhumi-STL Lambert-St Louis

28h 04m2 stops Tokyo Narita Seattle/Tacoma Intl

$1,134Japan Airlines

Mon, Oct 5 - Mon, Oct 26

6:04 am - 4:40 amSTL Lambert-St Louis-BKK Bangkok Suvarnabhumi

34h 36m2 stops Los Angeles Osaka Kansai Intl

7:55 am - 11:59 pmBKK Bangkok Suvarnabhumi-STL Lambert-St Louis

28h 04m2 stops Tokyo Narita Seattle/Tacoma Intl

$1,135Japan Airlines

Wed, Oct 7 - Wed, Oct 14

6:47 am - 1:05 amSTL Lambert-St Louis-BKK Bangkok Suvarnabhumi

30h 18m2 stops Detroit Metropolitan Wayne County Incheon Intl

11:30 pm - 1:53 pmBKK Bangkok Suvarnabhumi-STL Lambert-St Louis

26h 23m2 stops Incheon Intl Detroit Metropolitan Wayne County

$1,161Delta

Mon, Oct 5 - Mon, Oct 26

6:00 am - 4:35 amSTL Lambert-St Louis-BKK Bangkok Suvarnabhumi

34h 35m2 stops Chicago O'Hare Intl Tokyo Haneda

4:55 pm - 2:13 pmBKK Bangkok Suvarnabhumi-STL Lambert-St Louis

33h 18m3 stops Hong Kong Intl Los Angeles Houston George Bush Intcntl

$1,168United Airlines

Mon, Oct 5 - Mon, Oct 26

10:27 am - 4:35 amSTL Lambert-St Louis-BKK Bangkok Suvarnabhumi

30h 08m2 stops Chicago O'Hare Intl Tokyo Haneda

4:55 pm - 2:13 pmBKK Bangkok Suvarnabhumi-STL Lambert-St Louis

33h 18m3 stops Hong Kong Intl Los Angeles Houston George Bush Intcntl

$1,168United Airlines

Wed, Oct 7 - Tue, Oct 13

11:21 am - 8:25 pmSTL Lambert-St Louis-BKK Bangkok Suvarnabhumi

45h 04m2 stops Philadelphia Doha Hamad Intl

3:00 am - 8:57 pmBKK Bangkok Suvarnabhumi-STL Lambert-St Louis

29h 57m2 stops Doha Hamad Intl Chicago O'Hare Intl

$1,282Qatar Airways

Sat, Oct 10 - Tue, Nov 10

1:06 pm - 12:10 amSTL Lambert-St Louis-BKK Bangkok Suvarnabhumi

23h 04m2 stops Chicago O'Hare Intl Hong Kong Intl

12:45 pm - 4:43 pmBKK Bangkok Suvarnabhumi-STL Lambert-St Louis

40h 58m2 stops Hong Kong Intl Chicago O'Hare Intl

$1,294Cathay Pacific

Wed, Oct 7 - Wed, Oct 14

7:29 am - 2:25 pmSTL Lambert-St Louis-BKK Bangkok Suvarnabhumi

42h 56m2 stops Chicago O'Hare Intl Doha Hamad Intl

8:00 pm - 8:57 pmBKK Bangkok Suvarnabhumi-STL Lambert-St Louis

36h 57m2 stops Doha Hamad Intl Chicago O'Hare Intl

$1,313Qatar Airways

Booking Insights

Price, demand and travel trends for St. Louis to Bangkok Suvarnabhumi Airport flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

Prices

Airlines

What's the cheapest day of the week to fly from St. Louis to Bangkok Suvarnabhumi Airport?: Based on deals KAYAK users found in the last 12 months, Monday is the cheapest day of the week to fly from St. Louis to Bangkok Suvarnabhumi Airport. It’s 9% cheaper than the average day, while Friday is the most expensive, with prices 18% higher.
What’s the cheapest month to fly from St. Louis to Bangkok Suvarnabhumi Airport? KAYAK internal proprietary data takes all prices for each month over the last 12 months for round-trip flights from St. Louis to Bangkok Suvarnabhumi Airport, removes the top 0.1% to account for outliers and then takes the median of all values for each month.: •September is the cheapest month to fly from St. Louis to Bangkok Suvarnabhumi Airport at $1,009 round-trip.
•December ($1,735) and June ($1,580) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 71% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.
When are flights from St. Louis to Bangkok Suvarnabhumi Airport the cheapest?: Flights from St. Louis to Bangkok Suvarnabhumi Airport are cheapest 21 weeks before departure. Booking in this window typically costs about 26% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.

Find deals

Low season	October
High season	February
Cheapest flight	$504

Beat the crowds with an average 49% drop in travelers.

The most popular month to fly with an average 28% increase in travelers.

One-way flight from St. Louis to Bangkok Suvarnabhumi Airport

When to book flights from St. Louis to Bangkok

Are your dates flexible? Find out the best times to travel from St. Louis to Bangkok based on our flight data from the last year. Discover the cheapest month and even day to fly.

Estimated round-trip price

KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

What cabin classes can I book on flights from St. Louis to Bangkok Suvarnabhumi Airport?
Four cabin classes are available on flights from St. Louis to Bangkok Suvarnabhumi Airport:

• Economy Class
• Premium Economy Class
• Business Class
• First Class

Prices vary by airline.
Do I need a passport to fly from St. Louis to Bangkok Suvarnabhumi Airport?
Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.
How much should I expect to pay for a St. Louis to Bangkok Suvarnabhumi Airport flight?
Round-trip flights from St. Louis to Bangkok Suvarnabhumi Airport range from $1,042 to $1,456, with an average of $1,223 over the past 12 months. Anything below $1,042 counts as a good deal.
How expensive are last-minute St. Louis to Bangkok Suvarnabhumi Airport flights?
Last-minute fares on this route (booked within two weeks of departure) run 10% above the $1,223 route average. Book 21 weeks before departure for the lowest fares.
How are flight prices from St. Louis to Bangkok Suvarnabhumi Airport looking right now?
One-way fares from St. Louis to Bangkok Suvarnabhumi Airport are currently lower than usual. Average one-way flight prices are about $570, which is 13% below the typical average for this route.
What car rental options are available at Bangkok Suvarnabhumi Airport (BKK)?
Bangkok Suvarnabhumi Airport (BKK) hosts 5 major car rental companies, with daily rates starting from around $13 for economy cars. Top options include:

• Drive Car Rental
• Alamo
• Sixt
• Yesaway
• Hertz
Which airports can I use when flying from St. Louis to Bangkok Suvarnabhumi Airport?
Flights from St. Louis to Bangkok Suvarnabhumi Airport usually depart from Lambert-St Louis (STL) and arrive at Bangkok Suvarnabhumi (BKK).
Can I save money by using flexible dates for flights from St. Louis to Bangkok Suvarnabhumi Airport?
Yes. Flexible dates can save you up to 24% on flights from St. Louis to Bangkok Suvarnabhumi Airport. Monday is the cheapest departure day at $1,115 round-trip on average, while Friday is the most expensive at $1,454, a difference of $339.

KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.
What is the time difference between St. Louis and Bangkok Suvarnabhumi Airport?
Bangkok Suvarnabhumi Airport is 12 hours ahead of St. Louis (Indochina Time vs Central Time). Plan for the time shift when scheduling connections or first-day activities.
What popular places can I visit in Bangkok Suvarnabhumi Airport?
Some of the most popular sights in Bangkok Suvarnabhumi Airport are Pratunam, Siam Square and Thailand Cultural Center. These are among the most viewed places in Bangkok Suvarnabhumi Airport on KAYAK.

If your dates are flexible, aim for a Monday departure and avoid flying on Friday. On this route, Monday flights average $1,115, about $339 less than Friday fares (23% savings) based on the last 12 months.
For the best chance at a low fare, aim to book around 21 weeks before you fly. On this route, that window historically saves about 26% versus last-minute pricing (KAYAK booking data, last 12 months).
If you can choose when to travel, plan your St. Louis to Bangkok Suvarnabhumi Airport trip for September. Fares historically average $1,009 round-trip in that month - typically $726 less than the most expensive month, which is December (based on the last 12 months).
If you're arriving late at night and need somewhere to stay, check out these hotels close to Bangkok Suvarnabhumi Airport.

• Regency Bangkok Suvarnabhumi Airpor
• Siam Mandarina Bangkok Suvarnabhumi Airport Hotel (Free Shuttle)
• Suvarnabhumi Ville Airport Hotel

More options for your flight from St. Louis to Bangkok

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STL - BKK

$504 Find Cheap Flights from St. Louis to Bangkok - Compare and Save

Everything you should know

Cheap Flights from St. Louis to Bangkok (STL-BKK)

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

Recent one-way flight deals from St. Louis to Bangkok

Recent last minute flight deals from St. Louis to Bangkok

Price, demand and travel trends for St. Louis to Bangkok Suvarnabhumi Airport flights

What's the cheapest day of the week to fly from St. Louis to Bangkok Suvarnabhumi Airport?

What’s the cheapest month to fly from St. Louis to Bangkok Suvarnabhumi Airport?

When are flights from St. Louis to Bangkok Suvarnabhumi Airport the cheapest?

Which airline is the cheapest to fly from St. Louis to Bangkok Suvarnabhumi Airport?

Key details for St. Louis to Bangkok Suvarnabhumi Airport flights

Low season

High season

Cheapest flight

When to book flights from St. Louis to Bangkok

Your St. Louis to Bangkok Suvarnabhumi Airport flight questions, answered

Your guide to booking St. Louis to Bangkok Suvarnabhumi Airport flights

More options for your flight from St. Louis to Bangkok

Complete your trip to Bangkok with a hotel stay or car rental

Information on your arrival and departure airports

Cabin class types available on flights to Bangkok

Find direct flights to and from St. Louis and Bangkok

Flights from domestic origins to Bangkok

Flights to other popular destinations

Find deals for your return flight