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Montrose

$211+ 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 3/27. Fares are subject to change and may not be available on all flights or dates of travel.
STL — MTJ
Mar 26 — Apr 21
Thu 3/26
Thu 4/2
1 adult, Economy
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Cheap 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 February 24, 2026.

This United Airlines deal was found by Cheapflights users on 2/22. 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 3/276:25 am
STL
-
MTJ
1 stop6h 37m
United Airlines
Tue 3/311:40 pm
MTJ
-
STL
1 stop6h 14m
United Airlines
Deal found 2/22$211
This United Airlines deal was found by Cheapflights users on 2/23. 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.
Wed 5/139:14 am
STL
-
MTJ
2 stops12h 04m
United Airlines
Thu 5/2112:31 pm
MTJ
-
STL
1 stop7h 45m
United Airlines
Deal found 2/23$237
This United Airlines deal was found by Cheapflights users on 2/20. 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 4/98:54 am
STL
-
MTJ
1 stop4h 47m
United Airlines
Wed 4/151:40 pm
MTJ
-
STL
1 stop6h 14m
United Airlines
Deal found 2/20$246
This United Airlines deal was found by Cheapflights users on 2/21. 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.
Mon 8/244:30 pm
STL
-
MTJ
1 stop4h 39m
United Airlines
Fri 8/281:35 pm
MTJ
-
STL
1 stop6h 24m
United Airlines
Deal found 2/21$247
This American Airlines deal was found by Cheapflights users on 2/22. 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 3/289:35 am
STL
-
MTJ
1 stop5h 21m
American Airlines
Wed 4/112:14 pm
MTJ
-
STL
1 stop6h 15m
American Airlines
Deal found 2/22$255
This United Airlines deal was found by Cheapflights users on 2/20. 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.
Sat 3/71:14 pm
STL
-
MTJ
2 stops7h 52m
United Airlines
Wed 3/111:42 pm
MTJ
-
STL
1 stop5h 59m
United Airlines
Deal found 2/20$284
This Southwest deal was found by Cheapflights users on 2/22. 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.
Fri 3/275:45 am
STL
-
MTJ
1 stop8h 05m
Southwest
Tue 3/318:00 am
MTJ
-
STL
2 stops8h 55m
Southwest
Deal found 2/22$296
This American Airlines deal was found by Cheapflights users on 2/23. 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 3/277:00 am
STL
-
MTJ
1 stop5h 34m
American Airlines
Tue 3/3112:14 pm
MTJ
-
STL
2 stops22h 21m
American Airlines
Deal found 2/23$348
This United Airlines deal was found by Cheapflights users on 2/20. 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.
Fri 3/65:00 am
STL
-
MTJ
1 stop8h 02m
United Airlines
Sun 3/81:33 pm
MTJ
-
STL
1 stop7h 43m
United Airlines
Deal found 2/20$358

Find 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 February 24, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$211
(United Airlines)

Popular in

July

Cheapest in

January

Average price

$355
Provider with most accurate pricing for Lambert-St Louis-Montrose County flight deals.
Search Deals
Provider most trusted by Cheapflights users for Lambert-St Louis-Montrose County flights.
Search Deals
From Lambert-St Louis to Montrose County
Search Deals
Highest demand for flights based on searches. 2% potential increase in price ($7 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($17 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
Search Deals

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 February 24, 2026.
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

Fri 3/27

6:25 am-12:02 pm

1 stop6h 37m

Montrose County

Tue 3/31

1:40 pm-8:54 pm

1 stop6h 14m

$211

St. LouisMontrose

STL - MTJ

STLMTJ

Lambert-St Louis

Wed 5/13

9:14 am-8:18 pm

2 stops12h 04m

Montrose County

Thu 5/21

12:31 pm-9:16 pm

1 stop7h 45m

$237

St. LouisMontrose

STL - MTJ

STLMTJ

Lambert-St Louis

Thu 4/9

8:54 am-12:41 pm

1 stop4h 47m

Montrose County

Wed 4/15

1:40 pm-8:54 pm

1 stop6h 14m

$246

St. LouisMontrose

STL - MTJ

STLMTJ

Lambert-St Louis

Fri 3/27

5:45 am-12:50 pm

1 stop8h 05m

Montrose County

Tue 3/31

8:00 am-5:55 pm

2 stops8h 55m

$296

St. LouisMontrose

STL - MTJ

STLMTJ

Lambert-St Louis

Fri 3/27

7:00 am-11:34 am

1 stop5h 34m

Montrose County

Tue 3/31

12:14 pm-11:35 am

2 stops22h 21m

$348

St. LouisMontrose

STL - MTJ

STLMTJ

Lambert-St Louis

Fri 3/6

5:00 am-12:02 pm

1 stop8h 02m

Montrose County

Sun 3/8

1:33 pm-10:16 pm

1 stop7h 43m

$358

St. LouisMontrose

STL - MTJ

STLMTJ

Lambert-St Louis

Mon 3/2

8:41 am-2:37 pm

1 stop6h 56m

Montrose County

Thu 3/5

1:33 pm-10:16 pm

1 stop7h 43m

$389

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/22

Compare providers for flights from St. Louis to Montrose

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 St. Louis to Montrose in February.
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 St. Louis-Montrose flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on St. Louis-Montrose flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from St. Louis-Montrose flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on St. Louis-Montrose 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 St. Louis-Montrose 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 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, January is the cheapest month in which you can book a flight from St. Louis to Montrose (average of $200). Flying from St. Louis to Montrose in July is currently the most expensive (average of $347). 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 February 24, 2026.
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
9,344 reviews

Food

6.6

Boarding

7.7

Crew

8.1

Entertainment

7.1

Overall

7.4

Comfort

7.3

Reviews

1 / 20
6.0
Good

Gerry,Jan 2026

YVR - DEN

Seats were uncomfortable. Second leg of my flight on United had much more comfortable seats
United Airlines
7.4
Good
9,344 reviews
United Airlines
7.4
Good
9,344 reviews

Food

6.6

Boarding

7.7

Crew

8.1

Entertainment

7.1

Overall

7.4

Comfort

7.3

Reviews

1 / 20
6.0
Good

Gerry,Jan 2026

YVR - DEN

Seats were uncomfortable. Second leg of my flight on United had much more comfortable seats
American Airlines
7.2
Good
11,344 reviews
United Airlines
7.4
Good
9,344 reviews

Food

6.6

Boarding

7.7

Crew

8.1

Entertainment

7.1

Overall

7.4

Comfort

7.3

Reviews

1 / 20
6.0
Good

Gerry,Jan 2026

YVR - DEN

Seats were uncomfortable. Second leg of my flight on United had much more comfortable seats

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 United Airlines and Southwest fly from St. Louis to Montrose in about 6h 37m. The time it takes to get you to your destination can typically vary by up to 1h 28m. 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 $211, United Airlines will fly you from St. Louis to Montrose and back. In addition to United Airlines, many other airlines offer competitively priced options for your trip. Check Cheapflights for deals on American Airlines for as low as $240. United Airlines is priced at 45% 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, January is the cheapest month in which you can book a flight from St. Louis to Montrose (average of $200). Flying from St. Louis to Montrose in July is currently the most expensive (average of $347). 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

Browse thousands of different options on Cheapflights for your next trip

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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 February 24, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$211Average$420FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$240Average$317FlexibilityNo cancel feeOn-time71%

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