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฿5,084+ Cheap flights from St. Louis

This is the cheapest return flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 14/8. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
STL — BKK
9 Jul — 16 Jul1
1 adult

What to know about flights from St. Louis

Discover essential information about flights departing from St. Louis, including flight schedules, destinations, airlines operating at the St. Louis airport, and any specific guidelines or requirements for travellers. Please note that the information is based on the most recent updates available. Data last updated 4 July 2025.

Good one-way deal

฿15,544 or less
Price to beat on a one-way flight from Lambert-St Louis.
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Find flights from St. Louis

Cheapest flights from St. Louis
Explore the most affordable flight options available from St. Louis. Find the lowest fares based on data from user searches, with prices last updated on 4 July 2025.

Thu 28/806:15STL - BKK
2 stops29h 40mANA
Wed 3/909:35BKK - STL
2 stops40h 44mANA
Deal found 2/7฿31,542
Mon 11/806:00STL - BKK
2 stops29h 25mเดลต้า
Wed 20/802:35BKK - STL
2 stops34h 03mเดลต้า
Deal found 3/7฿31,704
Mon 6/1017:47STL - BKK
2 stops46h 48mUnited Airlines
Tue 4/1109:25BKK - STL
2 stops44h 38mUnited Airlines
Deal found 3/7฿31,866
Sun 10/819:32STL - BKK
2 stops39h 53mMultiple Airlines
Tue 19/802:35BKK - STL
2 stops48h 04mMultiple Airlines
Deal found 3/7฿32,222
Mon 1/918:30STL - BKK
2 stops29h 40mChina Airlines
Mon 29/902:40BKK - STL
2 stops50h 54mChina Airlines
Deal found 1/7฿32,416
Fri 19/906:40STL - CNX
2 stops27h 15mเดลต้า
Tue 23/923:15CNX - STL
2 stops37h 23mเดลต้า
Deal found 3/7฿34,618
Sun 14/918:00STL - HKT
2 stops40h 10mเดลต้า
Sun 21/923:25HKT - STL
2 stops35h 44mเดลต้า
Deal found 2/7฿35,104
Tue 30/909:56STL - BKK
2 stops41h 14mJapan Airlines
Fri 28/1108:05BKK - STL
2 stops24h 55mJapan Airlines
Deal found 3/7฿35,655
Tue 11/1118:43STL - HKT
2 stops57h 27mMultiple Airlines
Tue 18/1118:10HKT - STL
2 stops33h 10mMultiple Airlines
Deal found 3/7฿38,731
Fri 19/908:40STL - CNX
2 stops25h 15mKorean Air
Tue 23/923:15CNX - STL
2 stops35h 54mKorean Air
Deal found 2/7฿40,286
Fri 12/909:46STL - HKT
2 stops45h 04mQatar Airways
Fri 19/920:25HKT - STL
2 stops54h 16mQatar Airways
Deal found 2/7฿40,383
Sat 16/815:24STL - CNX
2 stops31h 01mEVA Air
Sat 23/811:35CNX - STL
2 stops41h 59mEVA Air
Deal found 2/7฿42,488

Find flights from St. Louis within your budget

Find flights departing from St. Louis that match your specified budget. Filter results by price range, allowing you to narrow down options and find flights that fit within your financial constraints. Please note that the search results are based on data from user searches, with fares last updated on 4 July 2025. In the last 7 days, Cheapflights users made a total of 17,341 searches

Fly to

Suvarnabhumi

Route

Depart

Return

Price

St. LouisBangkok

STL - BKK

STLBKK

Lambert-St Louis

Thu 28/8

06:15-23:55

2 stops29h 40m

Bangkok Suvarnabhumi

Wed 3/9

09:35-14:19

2 stops40h 44m

฿31,542

St. LouisBangkok

STL - BKK

STLBKK

Lambert-St Louis

Mon 11/8

08:46-23:25

2 stops26h 39m

Bangkok Suvarnabhumi

Sun 24/8

02:35-00:38

2 stops34h 03m

฿31,704

St. LouisBangkok

STL - BKK

STLBKK

Lambert-St Louis

Mon 6/10

17:47-04:35

2 stops46h 48m

Bangkok Suvarnabhumi

Tue 4/11

09:25-17:03

2 stops44h 38m

฿31,866

St. LouisBangkok

STL - BKK

STLBKK

Lambert-St Louis

Sun 10/8

19:32-23:25

2 stops39h 53m

Bangkok Suvarnabhumi

Tue 19/8

02:35-14:39

2 stops48h 04m

฿32,222

St. LouisBangkok

STL - BKK

STLBKK

Lambert-St Louis

Mon 1/9

18:30-12:10

2 stops29h 40m

Bangkok Suvarnabhumi

Mon 29/9

02:40-17:34

2 stops50h 54m

฿32,416

St. LouisChiang Mai

STL - CNX

STLCNX

Lambert-St Louis

Fri 19/9

06:40-21:55

2 stops27h 15m

Chiang Mai

Tue 23/9

23:15-00:38

2 stops37h 23m

฿34,618

St. LouisPhuket City

STL - HKT

STLHKT

Lambert-St Louis

Sun 14/9

18:00-22:10

2 stops40h 10m

Phuket City

Sun 21/9

23:25-23:09

2 stops35h 44m

฿35,104

St. LouisBangkok

STL - BKK

STLBKK

Lambert-St Louis

Tue 30/9

09:56-15:10

2 stops41h 14m

Bangkok Suvarnabhumi

Fri 28/11

08:05-20:00

2 stops24h 55m

฿35,655

St. LouisPhuket City

STL - HKT

STLHKT

Lambert-St Louis

Tue 11/11

18:43-17:10

2 stops57h 27m

Phuket City

Tue 18/11

18:10-14:20

2 stops33h 10m

฿38,731

St. LouisChiang Mai

STL - CNX

STLCNX

Lambert-St Louis

Fri 19/9

08:40-21:55

2 stops25h 15m

Chiang Mai

Tue 23/9

23:15-23:09

2 stops35h 54m

฿40,286

Flights are sorted by cheapest return flights first.

Deals found on 4/7

Showing 1-10 of 23 results
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Best time to book a flight from St. Louis

Have a flexible travel schedule? Discover the best time to fly from St. Louis with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Travel insights for flights from St. Louis

Get recent, data-driven insights about flights from St. Louis including ideal travel times, pricing trends, and more.

When is the best time to book a flight from St. Louis?

Use this chart to determine the optimal time to book a return flight from St. Louis to Suvarnabhumi. Price data was last updated on 27 June 2025.

Booking 76 days in advance of your planned departure date is, on average, the best time to get cheap flights from St. Louis. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from St. Louis?

Currently, October is the cheapest month in which you can book a flight from St. Louis (average of ฿33,388). Flying from St. Louis in June will prove the most costly (average of ฿41,290). There are multiple factors that influence the price of a flight so comparing airlines, departure airports and times can help keep costs down.

What are popular destinations to fly to from St. Louis?

If you’re flying from St. Louis, these routes are more frequently taken by airlines Chicago (604 flights per day), Atlanta (186 flights per day) and Dallas (116 flights per day).

Houston Hobby
Houston Hobby
From ฿480

What is the cheapest place to fly to from St. Louis?

The cheapest city to fly to from St. Louis is Houston Hobby, with prices starting at ฿15,544. Explore other affordable destinations below.

Houston Hobby
Houston Hobby
From ฿480

Airline reviews for flights from St. Louis

Get insights into the airlines that provide service from St. Louis. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing airline for your flight from St. Louis. In the last 7 days, Cheapflights users made a total of 17,341 searches.
Check out reviews from past customers who have flown ANA, Japan Airlines, andChina Airlines from St. Louis to help guide your decision. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
ANA
8.4
Very Good
886 reviews
Check prices

Overall

8.4

Entertainment

7.9

Crew

8.7

Food

7.7

Comfort

8.2

Boarding

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

SEA - HND

The flight with ANA was fantastic. Huge plane but was boarded swiftly and efficiently with a lot of crew members engaged to expedite the process. The onboard crew was polite and considerate and constantly doing things to serve passengers. The plane was new and in great working order-- definitely more spacious than the Alaska plane we took from SLC. Food was solid, not great. Lots of movie options.
ANA
8.4
Very Good
886 reviews
ANA
8.4
Very Good
886 reviews
Check prices

Overall

8.4

Entertainment

7.9

Crew

8.7

Food

7.7

Comfort

8.2

Boarding

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

SEA - HND

The flight with ANA was fantastic. Huge plane but was boarded swiftly and efficiently with a lot of crew members engaged to expedite the process. The onboard crew was polite and considerate and constantly doing things to serve passengers. The plane was new and in great working order-- definitely more spacious than the Alaska plane we took from SLC. Food was solid, not great. Lots of movie options.
Japan Airlines
8.3
Very Good
1,503 reviews
ANA
8.4
Very Good
886 reviews
Check prices

Overall

8.4

Entertainment

7.9

Crew

8.7

Food

7.7

Comfort

8.2

Boarding

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

SEA - HND

The flight with ANA was fantastic. Huge plane but was boarded swiftly and efficiently with a lot of crew members engaged to expedite the process. The onboard crew was polite and considerate and constantly doing things to serve passengers. The plane was new and in great working order-- definitely more spacious than the Alaska plane we took from SLC. Food was solid, not great. Lots of movie options.
China Airlines
8.3
Very Good
747 reviews
ANA
8.4
Very Good
886 reviews
Check prices

Overall

8.4

Entertainment

7.9

Crew

8.7

Food

7.7

Comfort

8.2

Boarding

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

SEA - HND

The flight with ANA was fantastic. Huge plane but was boarded swiftly and efficiently with a lot of crew members engaged to expedite the process. The onboard crew was polite and considerate and constantly doing things to serve passengers. The plane was new and in great working order-- definitely more spacious than the Alaska plane we took from SLC. Food was solid, not great. Lots of movie options.
อลาสกาแอร์ไลน์
8.0
Very Good
10,000 reviews
ANA
8.4
Very Good
886 reviews
Check prices

Overall

8.4

Entertainment

7.9

Crew

8.7

Food

7.7

Comfort

8.2

Boarding

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

SEA - HND

The flight with ANA was fantastic. Huge plane but was boarded swiftly and efficiently with a lot of crew members engaged to expedite the process. The onboard crew was polite and considerate and constantly doing things to serve passengers. The plane was new and in great working order-- definitely more spacious than the Alaska plane we took from SLC. Food was solid, not great. Lots of movie options.
เดลต้า
8.0
Very Good
7,970 reviews
ANA
8.4
Very Good
886 reviews
Check prices

Overall

8.4

Entertainment

7.9

Crew

8.7

Food

7.7

Comfort

8.2

Boarding

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

SEA - HND

The flight with ANA was fantastic. Huge plane but was boarded swiftly and efficiently with a lot of crew members engaged to expedite the process. The onboard crew was polite and considerate and constantly doing things to serve passengers. The plane was new and in great working order-- definitely more spacious than the Alaska plane we took from SLC. Food was solid, not great. Lots of movie options.

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Direct flights from Missouri

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Related info for your journey

Access useful and relevant information related to your journey from St. Louis. This can include details such as airport transportation, visa requirements, travel insurance, luggage regulations, and any other information that can ensure a smooth and hassle-free travel experience. Please note that the information is based on general guidance and may need to be verified with official sources. Data last updated 4 July 2025.

  • What are the most popular destinations to fly to from St. Louis?

    The most selected flight destinations from St. Louis for the current month are Boston, Cancún, Atlanta. While Cancún, Boston, Atlanta are the top choices made by travellers year-round.

  • What is the cheapest flight from St. Louis to anywhere?

    Users have flown out of St. Louis for as low as ฿15,544 to Houston George Bush Intcntl Airport (prices may vary depending on the airline and departure time). On average, users have booked flights for ฿15,544 to fly from St. Louis.

  • What is the cheapest month to fly from St. Louis?

    At the present moment the cheapest month to fly from St. Louis is currently October; with June being the most expensive. Prices will vary depending on multiple factors such as booking in advance, airline and departure airports and times.

  • How does Cheapflights help users find flights from St. Louis?

    Cheapflights helps you search for flights from St. Louis via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

  • Why should you use Cheapflights to find cheap flight tickets from St. Louis?

    Millions of users choose and trust Cheapflights to book the best flight deals from St. Louis for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

  • Can Cheapflights find flights from St. Louis with no change fees?

    Cheapflights does show flights with no change fees to all users. To see these options for flights from St. Louis, users can toggle the no change fees filter when performing a flight search.

  • Can Cheapflights notify me if prices for flights from St. Louis become cheaper?

    Yes, Cheapflights offers price alerts on flights from St. Louis so you can book your travels when it’s right. The Price Alerts feature is available by clicking the bell icon next to the flight deals above and providing your email address.

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Cheapflights helps you search for flights from St. Louis via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Why should you use Cheapflights to find cheap flight tickets from St. Louis?

Millions of users choose and trust Cheapflights to book the best flight deals from St. Louis for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Can Cheapflights find flights from St. Louis with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from St. Louis, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from St. Louis become cheaper?

Yes, Cheapflights offers price alerts on flights from St. Louis so you can book your travels when it’s right. The Price Alerts feature is available by clicking the bell icon next to the flight deals above and providing your email address.

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