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$176+ Cheap flights from Montrose to St. Louis (MTJ - 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 8/8. Fares are subject to change and may not be available on all flights or dates of travel.
MTJ — STL
jul. 7 — jul. 141
lun. 7/7
lun. 7/14
1 adult, Economy
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Cheap flight deals from Montrose to St. Louis

Discover tips and strategies to find the most affordable flight options for your journey from Montrose (MTJ) 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 julio 2, 2025.

Round-trip from

$237
(Southwest)

One-way from

$176
(American Airlines)

Popular in

July

Cheapest in

April

Average price

$736
From Montrose County to Lambert-St Louis
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One-way flight from Montrose County to Lambert-St Louis
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Highest demand for flights based on searches. 15% potential increase in price ($78 potential increase over avg. RT price).
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Cheapest flight prices on average. 7% potential price decrease ($32 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Find flight deals from Montrose to St. Louis

Cheapest flights from Montrose to St. Louis
Explore the most affordable flight options available from Montrose to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on julio 2, 2025.

This Southwest deal was found by Cheapflights users on 6/30. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 11/412:05 pmMTJ - STL
1 stop5h 25mSouthwest
mar. 11/115:35 amSTL - MTJ
1 stop6h 45mSouthwest
Deal found 6/30$237
This American Airlines deal was found by Cheapflights users on 7/2. 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.
mié. 7/302:37 pmMTJ - STL
1 stop4h 54mAmerican Airlines
dom. 8/35:30 amSTL - MTJ
1 stop5h 14mAmerican Airlines
Deal found 7/2$291
This United Airlines deal was found by Cheapflights users on 7/1. 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.
mié. 7/231:35 pmMTJ - STL
1 stop7h 15mUnited Airlines
dom. 7/274:45 pmSTL - MTJ
1 stop5h 06mUnited Airlines
Deal found 7/1$394

Cheapflights Fare Finder

Customize your flight search to find flights from Montrose 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 julio 2, 2025.
Use the filters below to find and compare flights from Montrose to St. Louis that are best for you.

Fly from

Montrose

Fly to

St. Louis

Route

Depart

Return

Price

MontroseSt. Louis

MTJ - STL

MTJSTL

Montrose County

mar. 11/4

12:05 pm-6:30 pm

1 stop5h 25m

Lambert-St Louis

mar. 11/11

5:35 am-11:20 am

1 stop6h 45m

$237

MontroseSt. Louis

MTJ - STL

MTJSTL

Montrose County

mié. 7/30

2:37 pm-8:31 pm

1 stop4h 54m

Lambert-St Louis

dom. 8/3

5:30 am-9:44 am

1 stop5h 14m

$291

MontroseSt. Louis

MTJ - STL

MTJSTL

Montrose County

mié. 7/23

1:35 pm-9:50 pm

1 stop7h 15m

Lambert-St Louis

dom. 7/27

4:45 pm-8:51 pm

1 stop5h 06m

$394

MontroseSt. Louis

MTJ - STL

MTJSTL

Montrose County

vie. 8/8

2:37 pm-11:14 pm

1 stop7h 37m

$176

MontroseSt. Louis

MTJ - STL

MTJSTL

Montrose County

sáb. 7/19

3:30 pm-8:45 pm

1 stop4h 15m

$189

MontroseSt. Louis

MTJ - STL

MTJSTL

Montrose County

vie. 7/25

1:55 pm-9:35 pm

1 stop6h 40m

$262

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/2

Best time to book a flight from Montrose to St. Louis

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

What is the cheapest month to book a flight from Montrose to St. Louis?

Currently, August is the cheapest month in which you can book a flight from Montrose to St. Louis (average of $311). Flying from Montrose 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 julio 2, 2025.
Read reviews from past customers who have flown Southwest, United Airlines, and American Airlines from Montrose to St. Louis. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,272 reviews

Comfort

8.0

Boarding

8.2

Food

7.0

Overall

8.0

Entertainment

7.6

Crew

8.6

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
Southwest
8.0
Very good
4,272 reviews
Southwest
8.0
Very good
4,272 reviews

Comfort

8.0

Boarding

8.2

Food

7.0

Overall

8.0

Entertainment

7.6

Crew

8.6

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
United Airlines
7.4
Good
8,861 reviews
Southwest
8.0
Very good
4,272 reviews

Comfort

8.0

Boarding

8.2

Food

7.0

Overall

8.0

Entertainment

7.6

Crew

8.6

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,272 reviews

Comfort

8.0

Boarding

8.2

Food

7.0

Overall

8.0

Entertainment

7.6

Crew

8.6

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.

Related info for your journey

Find useful and relevant information for your journey from Montrose to St. Louis. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

    According to our current data, Southwest ($237), American Airlines ($291), and United Airlines ($394) offers the cheapest pricing from Montrose to St. Louis. You may be able to fly from Montrose to St. Louis for 47% less than the average price by searching for these airlines.

  • What are the cheapest airlines to fly from Montrose to St. Louis one-way?

    To fly one-way, consider booking your trip with American Airlines, which is currently one of the cheapest options available, starting at $176. United Airlines flights start at $189 while deals on Southwest start at $262 one-way.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Montrose 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 Montrose to St. Louis?

    Currently, August is the cheapest month in which you can book a flight from Montrose to St. Louis (average of $311). Flying from Montrose 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 Montrose?

Book flights to Montrose if you plan to visit one of these locations
O'Fallon
Maryland Heights
Fairview Heights
Collinsville
Eureka
St. Peters
Glencoe
Alton
Festus
Chesterfield
Farmington

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Top 2 airlines flying from Montrose to St. Louis

Discover the top 2 airlines that operate flights from Montrose 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 julio 2, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$237Average$391FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$337Average$436FlexibilityNo cancel feeOn-time71%

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