$268+ Cheap flights from Montgomery 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 12/3. Fares are subject to change and may not be available on all flights or dates of travel.
MGM — STL
Oct 24 — Oct 311
Round-trip
1 adult, Economy
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Find cheap flights from Montgomery to St. Louis with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Montgomery to St. Louis
Cheapest
Best
Last-minute
One-way
Cheapest flights from Montgomery to St. LouisExplore 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 24, 2026.
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 24, 2026.
This American Airlines deal was found by Cheapflights users on 9/23. 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 10/235:27 pm -
1 stop6h 32m
Sun 10/255:00 am -
1 stop7h 11m
Deal found 9/23![American Airlines logo]()
$308
This American Airlines deal was found by Cheapflights users on 9/21. 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 10/67:00 am -
1 stop5h 03m
Sat 10/1012:49 pm -
1 stop4h 13m
Deal found 9/21![American Airlines logo]()
$338
This Delta deal was found by Cheapflights users on 9/23. 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 9/256:28 pm -
1 stop5h 14m
Mon 9/286:54 pm -
1 stop4h 11m
Deal found 9/23![Delta logo]()
$518
This United Airlines deal was found by Cheapflights users on 9/23. 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.
Thu 10/84:53 pm -
1 stop5h 37m
Mon 10/125:10 am -
2 stops31h 31m
Deal found 9/23![United Airlines logo]()
$643
This American Airlines deal was found by Cheapflights users on 9/23. 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 10/85:30 am -
2 stops10h 14m
Mon 10/121:20 pm -
2 stops9h 51m
Deal found 9/23![American Airlines logo]()
$972
This United Airlines deal was found by Cheapflights users on 9/23. 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 10/231:17 pm -
2 stops24h 59m
Sun 10/256:50 pm -
2 stops17h 57m
Deal found 9/23![United Airlines logo]()
$1,157
This United Airlines deal was found by Cheapflights users on 9/23. 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 9/254:53 pm -
2 stops28h 44m
Mon 9/286:15 am -
1 stop6h 26m
Deal found 9/23![United Airlines logo]()
$1,297
Best flights from Montgomery to St. LouisDiscover carefully curated flight deals from Montgomery to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 24, 2026.
Discover carefully curated flight deals from Montgomery to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 24, 2026.
This United Airlines deal was found by Cheapflights users on 9/23. 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.
Thu 10/84:53 pm -
1 stop5h 37m
Mon 10/126:15 am -
1 stop6h 26m
Deal found 9/23![United Airlines logo]()
$338
This United Airlines deal was found by Cheapflights users on 9/21. 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 1/304:55 pm -
1 stop5h 18m
Wed 2/310:07 am -
1 stop6h 10m
Deal found 9/21![United Airlines logo]()
$398
Last-minute flights from Montgomery to St. LouisDiscover last-minute flight deals from Montgomery to St. Louis. Data last updated September 24, 2026 and is based on user searches.
Discover last-minute flight deals from Montgomery to St. Louis. Data last updated September 24, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 9/23. 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 9/256:28 pm -
1 stop5h 14m
Mon 9/286:54 pm -
1 stop4h 11m
Deal found 9/23![Delta logo]()
$518
This United Airlines deal was found by Cheapflights users on 9/23. 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 9/254:53 pm -
2 stops28h 44m
Mon 9/286:15 am -
1 stop6h 26m
Deal found 9/23![United Airlines logo]()
$1,297
This American Airlines deal was found by Cheapflights users on 9/21. 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 10/67:00 am -
1 stop5h 03m
Sat 10/1012:49 pm -
1 stop4h 13m
Deal found 9/21![American Airlines logo]()
$338
This United Airlines deal was found by Cheapflights users on 9/23. 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.
Thu 10/84:53 pm -
1 stop5h 37m
Mon 10/125:10 am -
2 stops31h 31m
Deal found 9/23![United Airlines logo]()
$643
This American Airlines deal was found by Cheapflights users on 9/23. 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 10/85:30 am -
2 stops10h 14m
Mon 10/121:20 pm -
2 stops9h 51m
Deal found 9/23![American Airlines logo]()
$972
This American Airlines deal was found by Cheapflights users on 9/23. 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 10/235:27 pm -
1 stop6h 32m
Sun 10/255:00 am -
1 stop7h 11m
Deal found 9/23![American Airlines logo]()
$308
This United Airlines deal was found by Cheapflights users on 9/23. 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 10/231:17 pm -
2 stops24h 59m
Sun 10/256:50 pm -
2 stops17h 57m
Deal found 9/23![United Airlines logo]()
$1,157
One-way flights from Montgomery to St. LouisSearch for one-way flight options from Montgomery to St. Louis. Find affordable one-way fares based on user searches. Data last updated September 24, 2026.
Search for one-way flight options from Montgomery to St. Louis. Find affordable one-way fares based on user searches. Data last updated September 24, 2026.
This United Airlines deal was found by Cheapflights users on 9/20. 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.
Thu 12/36:30 am -
1 stop7h 46m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/20![United Airlines logo]()
$268
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 September 24, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $308 (American Airlines) |
One-way from | $268 (United Airlines) |
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 7,457,451 searches. Data last updated September 24, 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
Cheapest round-trip
Quickest round-trip
MontgomerySt. Louis
MGM Montgomery Dannelly Field - STL Lambert-St Louis
MGMSTL
Montgomery Dannelly Field
Thu 12/3
6:30 am-2:16 pm
1 stop7h 46m
Lambert-St Louis
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$268
MontgomerySt. Louis
MGM Montgomery Dannelly Field - STL Lambert-St Louis
MGMSTL
Montgomery Dannelly Field
Thu 10/8
4:53 pm-10:30 pm
1 stop5h 37m
Lambert-St Louis
Mon 10/12
6:15 am-12:41 pm
1 stop6h 26m
$338
MontgomerySt. Louis
MGM Montgomery Dannelly Field - STL Lambert-St Louis
MGMSTL
Montgomery Dannelly Field
Sat 1/30
4:55 pm-10:13 pm
1 stop5h 18m
Lambert-St Louis
Wed 2/3
10:07 am-4:17 pm
1 stop6h 10m
$398
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 September.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Montgomery-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-St. Louis flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Montgomery-St. Louis flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Montgomery-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-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.
MGM-STL
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.
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 24, 2026.
Peruse reviews from past customers who have flown with Delta 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.
Overall
7.8
Crew
8.5
Food
7.2
Comfort
7.8
Boarding
8.1
Entertainment
7.8
Reviews
1 / 20
4.0
OkayJennifer,Sep 2026
ORD - LGA
Overall
7.8
Crew
8.5
Food
7.2
Comfort
7.8
Boarding
8.1
Entertainment
7.8
Reviews
1 / 20
4.0
OkayJennifer,Sep 2026
ORD - LGA
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.
Traveling to a place near St. Louis?
Book flights to St. Louis if you plan to visit one of these locationsFairview Heights
O'Fallon
Fenton
Swansea
Eureka
Wentzville
Maryland Heights
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Edwardsville
Glencoe
Chesterfield
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Montgomery and St. Louis flights
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Top airline flying from Montgomery to St. Louis
Discover the top airline 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 7,457,451 searches. Data last updated September 24, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$238 | Average$524 | FlexibilityNo cancel fee | On-timeN/A |