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Montrose

$249+ Cheap flights from St. Louis to Montrose (STL - MTJ)

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 1/25. Fares are subject to change and may not be available on all flights or dates of travel.
STL — MTJ
oct.. 17 — oct.. 241
dv. 10/17
dv. 10/24
1 adult, Economy
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Cheap flight deals from St. Louis to Montrose

Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to Montrose (MTJ). 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 setembre 17, 2025.

Round-trip from

$249
(Delta)

Popular in

December

Cheapest in

June

Average price

$392
From Lambert-St Louis to Montrose County
Search Deals
Highest demand for flights based on searches. 18% potential increase in price ($98 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($21 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in September 2025
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Find flight deals from St. Louis to Montrose

Cheapest flights from St. Louis to Montrose
Explore the most affordable flight options available from St. Louis to Montrose. Find the lowest fares from popular airlines and budget airlines, with prices last updated on setembre 17, 2025.

This United Airlines deal was found by Cheapflights users on 9/16. 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.
dc. 10/224:50 pmSTL - MTJ
1 stop4h 29mUnited Airlines
dl. 11/31:30 pmMTJ - STL
1 stop7h 24mUnited Airlines
Deal found 9/16$367
This United Airlines deal was found by Cheapflights users on 9/15. 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.
dj. 10/239:00 amSTL - MTJ
1 stop6h 29mUnited Airlines
dl. 11/31:30 pmMTJ - STL
1 stop7h 24mUnited Airlines
Deal found 9/15$423
This United Airlines deal was found by Cheapflights users on 9/16. 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.
dj. 10/24:50 pmSTL - MTJ
1 stop4h 29mUnited Airlines
dl. 10/61:45 pmMTJ - STL
1 stop25h 47mUnited Airlines
Deal found 9/16$592

Cheapflights Fare Finder

 
Customize your flight search to find flights from St. Louis to Montrose 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 setembre 17, 2025.
Use the filters below to find and compare flights from St. Louis to Montrose that are best for you.

Fly from

St. Louis

Fly to

Montrose

Route

Depart

Return

Price

St. LouisMontrose

STL - MTJ

STLMTJ

Lambert-St Louis

dg. 1/25

6:00 am-1:19 pm

1 stop8h 19m

Montrose County

dc. 1/28

2:17 pm-11:40 pm

1 stop8h 23m

$249

St. LouisMontrose

STL - MTJ

STLMTJ

Lambert-St Louis

dl. 1/26

6:00 am-1:19 pm

1 stop8h 19m

Montrose County

dc. 1/28

2:17 pm-11:40 pm

1 stop8h 23m

$249

St. LouisMontrose

STL - MTJ

STLMTJ

Lambert-St Louis

dg. 1/25

7:15 am-11:40 am

1 stop5h 25m

Montrose County

dc. 1/28

12:40 pm-8:35 pm

2 stops6h 55m

$254

St. LouisMontrose

STL - MTJ

STLMTJ

Lambert-St Louis

dl. 1/26

11:20 am-8:17 pm

2 stops9h 57m

Montrose County

dc. 1/28

1:32 pm-10:58 pm

2 stops8h 26m

$259

St. LouisMontrose

STL - MTJ

STLMTJ

Lambert-St Louis

dc. 10/22

4:50 pm-8:19 pm

1 stop4h 29m

Montrose County

dl. 11/3

1:30 pm-9:54 pm

1 stop7h 24m

$367

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/16

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

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

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

Currently, October is the cheapest month in which you can book a flight from St. Louis to Montrose (average of $371). Flying from St. Louis to Montrose in March is currently the most expensive (average of $539). 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 Montrose

Get insights into the airlines that provide service to Montrose. 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 Montrose. Reviews last updated setembre 17, 2025.
Get a feel of what it's like to fly with United Airlines and American Airlines from St. Louis to Montrose by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,924 reviews

Overall

7.4

Crew

8.1

Entertainment

7.1

Comfort

7.3

Food

6.6

Boarding

7.7

Reviews

1 / 20
2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!
United Airlines
7.4
Good
8,924 reviews
United Airlines
7.4
Good
8,924 reviews

Overall

7.4

Crew

8.1

Entertainment

7.1

Comfort

7.3

Food

6.6

Boarding

7.7

Reviews

1 / 20
2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!
American Airlines
7.2
Good
10,000 reviews
United Airlines
7.4
Good
8,924 reviews

Overall

7.4

Crew

8.1

Entertainment

7.1

Comfort

7.3

Food

6.6

Boarding

7.7

Reviews

1 / 20
2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!

Related info for your journey

Find useful and relevant information for your journey from St. Louis to Montrose. 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 St. Louis to Montrose?

    Airlines like Delta, Southwest, and United Airlines fly from St. Louis to Montrose in about 5h 25m. The time it takes to get you to your destination can typically vary by up to 4h 32m. Airlines will cover a distance of 944 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

    Currently priced at $240, American Airlines will fly you from St. Louis to Montrose and back. In addition to American Airlines, many other airlines offer competitively priced options for your trip. Check Cheapflights for deals on United Airlines for as low as $270. American Airlines is priced at 46% lower than the current average price of a flight leaving 3 months from now.

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

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

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

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

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

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

    Currently, October is the cheapest month in which you can book a flight from St. Louis to Montrose (average of $371). Flying from St. Louis to Montrose in March is currently the most expensive (average of $539). 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

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Top 2 airlines flying from St. Louis to Montrose

Discover the top 2 airlines that operate flights from St. Louis to Montrose. 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 setembre 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$240Average$365FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$270Average$547FlexibilityNo cancel feeOn-time69%

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