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$170+ Cheap flights from Montgomery, AL to St. Louis (MGM - 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 10/28. Fares are subject to change and may not be available on all flights or dates of travel.
MGM — STL
Oct 29 — Nov 51
Wed 10/29
Wed 11/5
1 adult, Economy
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Cheap 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 September 29, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$306
(Delta)

One-way from

$170
(Delta)

Popular in

May

Cheapest in

January

Average price

$432
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
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One-way flight from Montgomery Dannelly Field to Lambert-St Louis
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Highest demand for flights based on searches. 8% potential increase in price ($37 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($15 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find 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 September 29, 2025.

This American Airlines deal was found by Cheapflights users on 9/29. 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.
Sat 12/135:31 pmMGM - STL
1 stop5h 16mAmerican Airlines
Sun 12/216:35 pmSTL - MGM
1 stop5h 13mAmerican Airlines
Deal found 9/29$394
This Delta deal was found by Cheapflights users on 9/27. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/129:32 amMGM - STL
1 stop5h 11mDelta
Thu 10/167:05 amSTL - MGM
1 stop5h 01mDelta
Deal found 9/27$495
This American Airlines deal was found by Cheapflights users on 9/27. 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.
Sun 10/126:30 amMGM - STL
1 stop5h 42mAmerican Airlines
Thu 10/161:28 pmSTL - MGM
2 stops8h 37mAmerican Airlines
Deal found 9/27$587
This American Airlines deal was found by Cheapflights users on 9/27. 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.
Fri 11/216:19 amMGM - STL
1 stop6h 20mAmerican Airlines
Sun 11/306:45 pmSTL - MGM
1 stop5h 04mAmerican Airlines
Deal found 9/27$590
This American Airlines deal was found by Cheapflights users on 9/27. 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.
Sat 11/225:46 pmMGM - STL
1 stop6h 19mAmerican Airlines
Sun 11/306:45 pmSTL - MGM
1 stop5h 04mAmerican Airlines
Deal found 9/27$615
This Delta deal was found by Cheapflights users on 9/29. 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.
Tue 9/302:00 pmMGM - STL
1 stop5h 05mDelta
Fri 10/36:42 pmSTL - MGM
1 stop4h 06mDelta
Deal found 9/29$672
This American Airlines deal was found by Cheapflights users on 9/29. 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.
Tue 9/301:55 pmMGM - STL
2 stops7h 58mAmerican Airlines
Fri 10/310:54 amSTL - MGM
1 stop6h 22mAmerican Airlines
Deal found 9/29$678

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 September 29, 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

Sat 2/21

6:00 am-10:50 am

1 stop4h 50m

Lambert-St Louis

Tue 2/24

10:00 am-1:44 pm

1 stop3h 44m

$306

MontgomerySt. Louis

MGM - STL

MGMSTL

Montgomery Dannelly Field

Sat 2/21

5:30 pm-10:24 pm

1 stop4h 54m

Lambert-St Louis

Tue 2/24

2:42 pm-11:05 pm

2 stops8h 23m

$372

MontgomerySt. Louis

MGM - STL

MGMSTL

Montgomery Dannelly Field

Sat 12/13

5:31 pm-10:47 pm

1 stop5h 16m

Lambert-St Louis

Sun 12/21

6:35 pm-11:48 pm

1 stop5h 13m

$394

MontgomerySt. Louis

MGM - STL

MGMSTL

Montgomery Dannelly Field

Sun 10/12

9:32 am-2:43 pm

1 stop5h 11m

Lambert-St Louis

Thu 10/16

7:05 am-12:06 pm

1 stop5h 01m

$495

MontgomerySt. Louis

MGM - STL

MGMSTL

Montgomery Dannelly Field

Tue 10/28

12:46 pm-6:02 pm

1 stop5h 16m

$170

MontgomerySt. Louis

MGM - STL

MGMSTL

Montgomery Dannelly Field

Mon 11/24

9:07 am-1:00 pm

1 stop3h 53m

$170

MontgomerySt. Louis

MGM - STL

MGMSTL

Montgomery Dannelly Field

Sat 12/27

4:38 pm-9:41 pm

1 stop5h 03m

$170

MontgomerySt. Louis

MGM - STL

MGMSTL

Montgomery Dannelly Field

Sat 11/1

12:46 pm-6:02 pm

1 stop5h 16m

$170

MontgomerySt. Louis

MGM - STL

MGMSTL

Montgomery Dannelly Field

Sun 11/2

12:46 pm-4:10 pm

1 stop3h 24m

$170

MontgomerySt. Louis

MGM - STL

MGMSTL

Montgomery Dannelly Field

Tue 12/30

9:45 am-2:30 pm

1 stop4h 45m

$170

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/27

Showing 1-10 of 13 results
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2

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 September.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
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 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, August is the cheapest month in which you can book a flight from Montgomery, Alabama to St. Louis (average of $311). Flying from Montgomery, Alabama 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.

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 September 29, 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
8.0
Very good
7,964 reviews

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Crew

8.5

Overall

8.0

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,964 reviews
Delta
8.0
Very good
7,964 reviews

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Crew

8.5

Overall

8.0

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,964 reviews

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Crew

8.5

Overall

8.0

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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 Delta and American Airlines fly from Montgomery, Alabama to St. Louis in about 4h 50m. The time it takes to get you to your destination can typically vary by up to 04m. 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 $276. Another airline that can offer you cheap pricing is American Airlines. Delta is priced at 32% 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, August is the cheapest month in which you can book a flight from Montgomery, Alabama to St. Louis (average of $311). Flying from Montgomery, Alabama 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
Edwardsville
O'Fallon
Fairview Heights
Maryland Heights
Collinsville
Eureka
Glencoe
St. Peters
Chesterfield
Alton
Farmington
Festus

Browse thousands of different options on Cheapflights for your next trip

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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 September 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$276Average$428FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$290Average$380FlexibilityNo cancel feeOn-time71%

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