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$546+ Cheap flights from Birmingham (BHX) to St. Louis (STL)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 6/17. Fares are subject to change and may not be available on all flights or dates of travel.
BHX — STL
Mar 15 — Mar 221
Sun 3/15
Sun 3/22
1 adult, Economy
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Cheap 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 February 13, 2026.

This United Airlines deal was found by Cheapflights users on 2/12. 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 4/185:55 am
BHX
-
STL
2 stops19h 36m
United Airlines
Wed 4/229:10 am
STL
-
BHX
2 stops18h 30m
United Airlines
Deal found 2/12$1,271

Find 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 February 13, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$1,271
(United Airlines)

One-way from

$546
(Kiwi.com)

Popular in

June

Cheapest in

February

Average price

$863
Provider with most accurate pricing for Birmingham-Lambert-St Louis flight deals.
Search Deals
Provider most trusted by Cheapflights users for Birmingham-Lambert-St Louis flights.
Search Deals
From Birmingham to Lambert-St Louis
Search Deals
One-way flight from Birmingham to Lambert-St Louis
Search Deals
Highest demand for flights based on searches. 18% potential increase in price ($282 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($66 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
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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 February 13, 2026.
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

Sat 4/18

5:55 am-7:31 pm

2 stops19h 36m

Lambert-St Louis

Wed 4/22

9:10 am-9:40 am

2 stops18h 30m

$1,271

BirminghamSt. Louis

BHX - STL

BHXSTL

Birmingham

Wed 6/17

9:30 pm-9:30 am

3 stops42h 00m

$546

BirminghamSt. Louis

BHX - STL

BHXSTL

Birmingham

Wed 6/17

5:55 pm-9:11 pm

2 stops33h 16m

$791

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/11

  • Most accurate provider: When it comes to deals on Birmingham-St. Louis flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Birmingham-St. Louis flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Birmingham-St. Louis flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Birmingham-St. Louis flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Birmingham-St. Louis flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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, May is the cheapest month in which you can book a flight from Birmingham to St. Louis (average of $394). Flying from Birmingham to St. Louis in August is currently the most expensive (average of $1,089). 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.

  • How long is the flight from Birmingham to St. Louis?

    For as low as $1,271, United Airlines can have you in St. Louis from Birmingham in 19h 36m. Birmingham and St. Louis are separated by a distance of 4108 mi.

  • 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, May is the cheapest month in which you can book a flight from Birmingham to St. Louis (average of $394). Flying from Birmingham to St. Louis in August is currently the most expensive (average of $1,089). 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
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