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$426+ Cheap flights from Montgomery, AL to St. Louis (MGM - 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 2/8. Fares are subject to change and may not be available on all flights or dates of travel.
MGM — STL
Jan 9 — Jan 161
Fri 1/9
Fri 1/16
1 adult, Economy
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Cheap flight deals from Montgomery to St. Louis

Cheapest flights from Montgomery to St. Louis
Explore the most affordable flight options available from Montgomery to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 10, 2025.

This American Airlines deal was found by Cheapflights users on 12/8. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/231:05 pmMGM - STL
1 stop6h 17mAmerican Airlines
Sat 12/276:35 pmSTL - MGM
1 stop5h 18mAmerican Airlines
Deal found 12/8$541
This American Airlines deal was found by Cheapflights users on 12/9. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/2112:55 pmMGM - STL
1 stop4h 29mAmerican Airlines
Wed 12/247:00 amSTL - MGM
1 stop5h 34mAmerican Airlines
Deal found 12/9$677

Find flight deals from Montgomery to St. Louis

Discover tips and strategies to find the most affordable flight options for your journey from Montgomery (MGM) 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 December 10, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$426
(American Airlines)

Popular in

May

Cheapest in

February

Average price

$306
Provider with most accurate pricing for Montgomery Dannelly Field-Lambert-St Louis flight deals.
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Provider most trusted by Cheapflights users for Montgomery Dannelly Field-Lambert-St Louis flights.
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From Montgomery Dannelly Field to Lambert-St Louis
Search Deals
Highest demand for flights based on searches. 16% potential increase in price ($76 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($17 potential savings vs. average RT price).
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Average for round-trip flights in December 2025
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Montgomery 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 December 10, 2025.
Use the filters below to find and compare flights from Montgomery to St. Louis that are best for you.

Fly from

Montgomery

Fly to

St. Louis

Route

Depart

Return

Price

MontgomerySt. Louis

MGM - STL

MGMSTL

Montgomery Dannelly Field

Sun 2/8

7:00 am-2:47 pm

1 stop7h 47m

Lambert-St Louis

Sat 3/14

6:53 pm-11:43 pm

1 stop4h 50m

$426

MontgomerySt. Louis

MGM - STL

MGMSTL

Montgomery Dannelly Field

Mon 1/5

5:18 pm-10:56 pm

1 stop5h 38m

Lambert-St Louis

Mon 1/12

3:37 pm-9:38 pm

1 stop6h 01m

$453

MontgomerySt. Louis

MGM - STL

MGMSTL

Montgomery Dannelly Field

Tue 12/23

1:05 pm-7:22 pm

1 stop6h 17m

Lambert-St Louis

Sat 12/27

6:35 pm-11:53 pm

1 stop5h 18m

$541

MontgomerySt. Louis

MGM - STL

MGMSTL

Montgomery Dannelly Field

Sun 12/21

12:55 pm-5:24 pm

1 stop4h 29m

Lambert-St Louis

Wed 12/24

7:00 am-12:34 pm

1 stop5h 34m

$677

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/9

Compare providers for flights from Montgomery to St. Louis

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Montgomery to St. Louis in December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Montgomery, Alabama-St. Louis flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Montgomery, Alabama-St. Louis flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Montgomery, Alabama-St. Louis flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Montgomery, Alabama-St. Louis flights, Cheapflights users trust eDreams the most. eDreams 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 Montgomery, Alabama-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 Montgomery to St. Louis

Have a flexible travel schedule? Discover the best time to fly to St. Louis from Montgomery 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 Montgomery to St. Louis

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

Currently, April is the cheapest month in which you can book a flight from Montgomery, Alabama to St. Louis (average of $190). Flying from Montgomery, Alabama to St. Louis in January is currently the most expensive (average of $301). 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 Montgomery, Alabama to St. Louis?

Reviews of airlines servicing St. Louis

Get insights into the airlines that provide service to 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 an airline for your flight to St. Louis. Reviews last updated December 10, 2025.
Peruse reviews from past customers who have flown with Delta and American Airlines from Montgomery to St. Louis to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,007 reviews

Comfort

7.9

Boarding

8.1

Food

7.3

Overall

7.9

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Delta
7.9
Good
8,007 reviews
Delta
7.9
Good
8,007 reviews

Comfort

7.9

Boarding

8.1

Food

7.3

Overall

7.9

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
American Airlines
7.2
Good
11,048 reviews
Delta
7.9
Good
8,007 reviews

Comfort

7.9

Boarding

8.1

Food

7.3

Overall

7.9

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Related info for your journey

Find useful and relevant information for your journey from Montgomery 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 Montgomery, Alabama to St. Louis?

    Airlines like American Airlines fly from Montgomery, Alabama to St. Louis in about 7h 47m. The time it takes to get you to your destination can typically vary by up to . The distance from Montgomery, Alabama to St. Louis is about 498 mi.

  • What are the cheapest airlines flying from Montgomery, Alabama to St. Louis round-trip?

    Cheapflights users have booked flights from Montgomery, Alabama to St. Louis round-trip from $238. Another airline that can offer you cheap pricing is American Airlines. Delta is priced at 38% lower than the current average price of a flight leaving 3 months from now.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Montgomery 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 Montgomery, Alabama to St. Louis?

    Currently, April is the cheapest month in which you can book a flight from Montgomery, Alabama to St. Louis (average of $190). Flying from Montgomery, Alabama to St. Louis in January is currently the most expensive (average of $301). 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
Edwardsville
O'Fallon
Fairview Heights
Maryland Heights
Collinsville
Swansea
Eureka
Glencoe
St. Peters
Chesterfield
Alton
Farmington
Festus

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Top 2 airlines flying from Montgomery to St. Louis

Discover the top 2 airlines that operate flights from Montgomery to St. Louis. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 10, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$238Average$428FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$304Average$385FlexibilityNo cancel feeOn-time71%

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