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$328+ 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 4/7. Fares are subject to change and may not be available on all flights or dates of travel.
MGM — STL
Apr 29 — May 61
Wed 4/29
Wed 5/6
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 March 30, 2026.

This United Airlines deal was found by Cheapflights users on 3/28. 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.
Tue 4/75:00 pm
MGM
-
STL
1 stop5h 28m
United Airlines
Tue 4/1410:09 am
STL
-
MGM
1 stop6h 16m
United Airlines
Deal found 3/28$328
This United Airlines deal was found by Cheapflights users on 3/26. 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.
Fri 4/245:00 pm
MGM
-
STL
1 stop5h 27m
United Airlines
Sat 4/2510:09 am
STL
-
MGM
1 stop6h 16m
United Airlines
Deal found 3/26$333
This Delta deal was found by Cheapflights users on 3/29. 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.
Fri 5/296:28 pm
MGM
-
STL
1 stop5h 31m
Delta
Tue 6/27:15 am
STL
-
MGM
1 stop4h 44m
Delta
Deal found 3/29$346
This Delta deal was found by Cheapflights users on 3/29. 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.
Fri 5/296:28 pm
MGM
-
STL
1 stop5h 31m
Delta
Mon 6/17:01 pm
STL
-
MGM
1 stop3h 53m
Delta
Deal found 3/29$392
This American Airlines deal was found by Cheapflights users on 3/29. 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.
Fri 5/293:20 pm
MGM
-
STL
2 stops8h 34m
American Airlines
Tue 6/25:25 am
STL
-
MGM
1 stop6h 34m
American Airlines
Deal found 3/29$445
This Delta deal was found by Cheapflights users on 3/25. 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.
Tue 3/312:59 pm
MGM
-
STL
1 stop6h 07m
Delta
Sat 4/1110:07 am
STL
-
MGM
1 stop4h 25m
Delta
Deal found 3/25$458
This American Airlines deal was found by Cheapflights users on 3/26. 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.
Fri 4/2412:56 pm
MGM
-
STL
2 stops10h 50m
American Airlines
Sat 4/256:11 pm
STL
-
MGM
1 stop5h 06m
American Airlines
Deal found 3/26$463
This United Airlines deal was found by Cheapflights users on 3/29. 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 8/224:55 pm
MGM
-
STL
1 stop5h 21m
United Airlines
Tue 8/258:35 am
STL
-
MGM
1 stop7h 47m
United Airlines
Deal found 3/29$466
This American Airlines deal was found by Cheapflights users on 3/29. 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.
Fri 5/293:20 pm
MGM
-
STL
2 stops8h 34m
American Airlines
Mon 6/16:12 pm
STL
-
MGM
1 stop5h 05m
American Airlines
Deal found 3/29$478
This Delta deal was found by Cheapflights users on 3/25. 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.
Fri 4/39:38 am
MGM
-
STL
1 stop5h 35m
Delta
Sat 4/1110:07 am
STL
-
MGM
1 stop4h 25m
Delta
Deal found 3/25$479
This American Airlines deal was found by Cheapflights users on 3/27. 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.
Thu 5/75:55 pm
MGM
-
STL
1 stop5h 04m
American Airlines
Mon 5/1112:27 pm
STL
-
MGM
2 stops11h 18m
American Airlines
Deal found 3/27$486

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 March 30, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$333
(United Airlines)

Popular in

March

Cheapest in

February

Average price

$568
Provider with most accurate pricing for Montgomery Dannelly Field-Lambert-St Louis flight deals.
Search Deals
Provider most trusted by Cheapflights users for Montgomery Dannelly Field-Lambert-St Louis flights.
Search Deals
From Montgomery Dannelly Field to Lambert-St Louis
Search Deals
Highest demand for flights based on searches. 3% potential increase in price ($14 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($15 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
Search Deals

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 March 30, 2026.
Use the filters below to find and compare flights from Montgomery to St. Louis that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

MontgomerySt. Louis

MGM - STL

MGMSTL

Montgomery Dannelly Field

Fri 5/29

3:20 pm-11:54 pm

2 stops8h 34m

Lambert-St Louis

Tue 6/2

6:00 am-2:55 pm

2 stops8h 55m

$450
Quickest round-trip

MontgomerySt. Louis

MGM - STL

MGMSTL

Montgomery Dannelly Field

Thu 5/7

9:55 am-4:10 pm

1 stop6h 15m

Lambert-St Louis

Mon 5/11

7:01 pm-10:54 pm

1 stop3h 53m

$458

MontgomerySt. Louis

MGM - STL

MGMSTL

Montgomery Dannelly Field

Fri 4/24

12:56 pm-11:46 pm

2 stops10h 50m

Lambert-St Louis

Sat 4/25

6:11 pm-11:17 pm

1 stop5h 06m

$463

MontgomerySt. Louis

MGM - STL

MGMSTL

Montgomery Dannelly Field

Sat 8/22

4:55 pm-10:16 pm

1 stop5h 21m

Lambert-St Louis

Tue 8/25

8:35 am-4:22 pm

1 stop7h 47m

$534

MontgomerySt. Louis

MGM - STL

MGMSTL

Montgomery Dannelly Field

Sun 5/3

4:55 pm-10:30 pm

1 stop5h 35m

Lambert-St Louis

Thu 5/7

6:00 am-12:10 pm

1 stop6h 10m

$544

MontgomerySt. Louis

MGM - STL

MGMSTL

Montgomery Dannelly Field

Thu 5/7

5:30 am-2:03 pm

2 stops8h 33m

Lambert-St Louis

Mon 5/11

2:33 pm-11:45 pm

2 stops9h 12m

$589

MontgomerySt. Louis

MGM - STL

MGMSTL

Montgomery Dannelly Field

Mon 4/13

5:00 pm-10:28 pm

1 stop5h 28m

Lambert-St Louis

Fri 4/17

6:05 pm-4:25 pm

2 stops22h 20m

$602
Cheapest one-way
Quickest one-way

MontgomerySt. Louis

MGM - STL

MGMSTL

Montgomery Dannelly Field

Sat 4/4

5:30 am-12:42 pm

1 stop7h 12m

$382

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/25

Sorted by cheapest first

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 March.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice 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 FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Montgomery, Alabama-St. Louis flight deals on Cheapflights vs. FlightHub >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 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 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 October is currently the most expensive (average of $309). 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 March 30, 2026.
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
8,358 reviews

Entertainment

7.8

Comfort

7.9

Boarding

8.1

Overall

7.9

Crew

8.5

Food

7.2

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
8,358 reviews
Delta
7.9
Good
8,358 reviews

Entertainment

7.8

Comfort

7.9

Boarding

8.1

Overall

7.9

Crew

8.5

Food

7.2

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
7.1
Good
11,530 reviews
Delta
7.9
Good
8,358 reviews

Entertainment

7.8

Comfort

7.9

Boarding

8.1

Overall

7.9

Crew

8.5

Food

7.2

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 United Airlines, Delta, and American Airlines fly from Montgomery, Alabama to St. Louis in about 5h 27m. The time it takes to get you to your destination can typically vary by up to 3h 07m. The distance from Montgomery, Alabama to St. Louis is about 498 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • 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 42% 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 October is currently the most expensive (average of $309). 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
Fenton
Swansea
Fairview Heights
Maryland Heights
Collinsville
Eureka
Wentzville
Glencoe
Chesterfield
Alton
Farmington
Festus

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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 March 30, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$238Average$441FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$260Average$439FlexibilityNo cancel feeOn-time71%

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