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$1,001+ Cheap flights from Birmingham (BHX) to St. Louis (STL)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/10. Fares are subject to change and may not be available on all flights or dates of travel.
BHX — STL
Aug 19 — Aug 261
Tue 8/19
Tue 8/26
1 adult, Economy
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Cheap flight deals from Birmingham to St. Louis

Discover tips and strategies to find the most affordable flight options for your journey from Birmingham (BHX) to St. Louis (STL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated August 14, 2025.

Round-trip from

$1,001
(Kiwi.com)

Popular in

June

Cheapest in

April

Average price

$1,410
From Birmingham to Lambert-St Louis
Search Deals
Highest demand for flights based on searches. 12% potential increase in price ($182 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($52 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Find flight deals from Birmingham to St. Louis

Cheapest flights from Birmingham to St. Louis
Explore the most affordable flight options available from Birmingham to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 14, 2025.

This Kiwi.com deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/1010:40 amBHX - STL
1 stop37h 30mMultiple Airlines
Wed 9/1710:21 amSTL - BHX
1 stop15h 34mMultiple Airlines
Deal found 8/13$1,001
This Delta deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/106:00 amBHX - STL
2 stops16h 45mDelta
Wed 9/174:10 pmSTL - BHX
2 stops15h 30mDelta
Deal found 8/13$1,089
This United Airlines deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/16:00 amBHX - STL
2 stops20h 49mUnited Airlines
Sat 11/1510:00 amSTL - BHX
2 stops20h 35mUnited Airlines
Deal found 8/13$1,093
This United Airlines deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/16:00 amBHX - STL
2 stops20h 40mUnited Airlines
Sun 11/308:25 amSTL - BHX
2 stops22h 10mUnited Airlines
Deal found 8/14$1,099
This United Airlines deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/289:35 amBHX - STL
2 stops34h 52mUnited Airlines
Sun 10/53:30 pmSTL - BHX
1 stop14h 45mUnited Airlines
Deal found 8/14$1,119
This ChecknFly deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure ChecknFly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/11:20 pmBHX - STL
1 stop30h 35mLufthansa
Sat 11/153:14 pmSTL - BHX
2 stops15h 21mLufthansa
Deal found 8/13$1,249
This ChecknFly deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure ChecknFly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/11:20 pmBHX - STL
1 stop30h 35mLufthansa
Sun 11/303:50 pmSTL - BHX
1 stop14h 45mLufthansa
Deal found 8/13$1,283

Cheapflights Fare Finder

 
Customize your flight search to find flights from Birmingham to St. Louis that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated August 14, 2025.
Use the filters below to find and compare flights from Birmingham to St. Louis that are best for you.

Fly from

Birmingham

Fly to

St. Louis

Route

Depart

Return

Price

BirminghamSt. Louis

BHX - STL

BHXSTL

Birmingham

Wed 9/10

10:40 am-6:10 pm

1 stop37h 30m

Lambert-St Louis

Wed 9/17

10:21 am-7:55 am

1 stop15h 34m

$1,001

BirminghamSt. Louis

BHX - STL

BHXSTL

Birmingham

Wed 9/10

6:00 am-4:45 pm

2 stops16h 45m

Lambert-St Louis

Wed 9/17

4:10 pm-1:40 pm

2 stops15h 30m

$1,089

BirminghamSt. Louis

BHX - STL

BHXSTL

Birmingham

Sat 11/1

6:00 am-9:49 pm

2 stops20h 49m

Lambert-St Louis

Sat 11/15

10:00 am-12:35 pm

2 stops20h 35m

$1,093

BirminghamSt. Louis

BHX - STL

BHXSTL

Birmingham

Sat 11/1

6:00 am-9:40 pm

2 stops20h 40m

Lambert-St Louis

Sun 11/30

8:25 am-12:35 pm

2 stops22h 10m

$1,099

BirminghamSt. Louis

BHX - STL

BHXSTL

Birmingham

Sun 9/28

9:35 am-2:27 pm

2 stops34h 52m

Lambert-St Louis

Sun 10/5

12:25 pm-12:15 pm

2 stops17h 50m

$1,119

BirminghamSt. Louis

BHX - STL

BHXSTL

Birmingham

Sat 11/1

1:20 pm-2:55 pm

1 stop30h 35m

Lambert-St Louis

Sat 11/15

3:14 pm-12:35 pm

2 stops15h 21m

$1,249

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/13

Best time to book a flight from Birmingham to St. Louis

Have a flexible travel schedule? Discover the best time to fly to St. Louis from Birmingham with our price prediction graph.
Estimated round-trip 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.

Cheapflights Insights

Everything you need to know about your flight from Birmingham to St. Louis

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

Currently, August is the cheapest month in which you can book a flight from Birmingham to St. Louis (average of $311). Flying from Birmingham to St. Louis in March is currently the most expensive (average of $356). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

How much does it cost to fly round-trip from Birmingham to St. Louis?

Related info for your journey

Find useful and relevant information for your journey from Birmingham to St. Louis. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • Can I find deals for flights from Birmingham to St. Louis that include hotel bookings?

    Yes. In addition to deals on Birmingham to St. Louis flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Birmingham to St. Louis?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Birmingham to St. Louis.

  • Can I find deals for business class flights from Birmingham to St. Louis?

    Yes. Cheapflights offers flight deals from Birmingham to St. Louis by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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

    Currently, August is the cheapest month in which you can book a flight from Birmingham to St. Louis (average of $311). Flying from Birmingham to St. Louis in March is currently the most expensive (average of $356). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
O'Fallon
Fairview Heights
Maryland Heights
Collinsville
Eureka
St. Peters
Glencoe
Alton
Chesterfield
Farmington
Festus

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