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Montrose

$136+ Cheap flights from St. Louis to Montrose (STL - MTJ)

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 4/24. Fares are subject to change and may not be available on all flights or dates of travel.
STL — MTJ
Apr 28 — May 51
Tue 4/28
Tue 5/5
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 March 29, 2026.

This United Airlines deal was found by Cheapflights users on 3/26. 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 5/164:15 pm
STL
-
MTJ
1 stop5h 03m
United Airlines
Sat 5/2312:31 pm
MTJ
-
STL
1 stop5h 52m
United Airlines
Deal found 3/26$217
This United Airlines deal was found by Cheapflights users on 3/27. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/249:10 am
STL
-
MTJ
2 stops12h 10m
United Airlines
Fri 5/11:43 pm
MTJ
-
STL
1 stop6h 00m
United Airlines
Deal found 3/27$290
This United Airlines deal was found by Cheapflights users on 3/24. 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 4/222:40 pm
STL
-
MTJ
1 stop6h 40m
United Airlines
Wed 4/297:15 am
MTJ
-
STL
1 stop4h 53m
United Airlines
Deal found 3/24$297
This United Airlines deal was found by Cheapflights users on 3/26. 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 4/109:10 am
STL
-
MTJ
2 stops12h 10m
United Airlines
Tue 4/141:40 pm
MTJ
-
STL
1 stop6h 14m
United Airlines
Deal found 3/26$343
This American Airlines deal was found by Cheapflights users on 3/27. 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 4/245:20 am
STL
-
MTJ
1 stop7h 46m
American Airlines
Fri 5/112:37 pm
MTJ
-
STL
1 stop5h 53m
American Airlines
Deal found 3/27$349
This United Airlines deal was found by Cheapflights users on 3/28. 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 5/94:15 pm
STL
-
MTJ
1 stop5h 03m
United Airlines
Wed 5/131:43 pm
MTJ
-
STL
1 stop6h 00m
United Airlines
Deal found 3/28$351

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 March 29, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$217
(United Airlines)

One-way from

$136
(Southwest)

Popular in

July

Cheapest in

January

Average price

$427
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
One-way flight from Lambert-St Louis to Montrose County
Search Deals
Highest demand for flights based on searches. 6% potential increase in price ($24 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 March 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 March 29, 2026.
Use the filters below to find and compare flights from St. Louis to Montrose that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

St. LouisMontrose

STL - MTJ

STLMTJ

Lambert-St Louis

Sat 5/16

4:15 pm-8:18 pm

1 stop5h 03m

Montrose County

Sat 5/23

1:40 pm-10:44 pm

2 stops8h 04m

$257

St. LouisMontrose

STL - MTJ

STLMTJ

Lambert-St Louis

Fri 4/24

9:10 am-8:20 pm

2 stops12h 10m

Montrose County

Fri 5/1

1:43 pm-8:43 pm

1 stop6h 00m

$290

St. LouisMontrose

STL - MTJ

STLMTJ

Lambert-St Louis

Wed 4/22

2:40 pm-8:20 pm

1 stop6h 40m

Montrose County

Wed 4/29

7:15 am-1:08 pm

1 stop4h 53m

$297

St. LouisMontrose

STL - MTJ

STLMTJ

Lambert-St Louis

Fri 4/10

9:10 am-8:20 pm

2 stops12h 10m

Montrose County

Tue 4/14

1:40 pm-8:54 pm

1 stop6h 14m

$343
Quickest round-trip

St. LouisMontrose

STL - MTJ

STLMTJ

Lambert-St Louis

Sat 5/9

4:15 pm-8:18 pm

1 stop5h 03m

Montrose County

Wed 5/13

1:43 pm-8:43 pm

1 stop6h 00m

$351
Cheapest one-way

St. LouisMontrose

STL - MTJ

STLMTJ

Lambert-St Louis

Fri 4/24

9:10 am-8:20 pm

2 stops12h 10m

$141
Quickest one-way

St. LouisMontrose

STL - MTJ

STLMTJ

Lambert-St Louis

Sat 4/18

7:12 am-11:58 am

1 stop5h 46m

$150

St. LouisMontrose

STL - MTJ

STLMTJ

Lambert-St Louis

Sat 4/18

8:50 am-6:50 pm

2 stops11h 00m

$270

St. LouisMontrose

STL - MTJ

STLMTJ

Lambert-St Louis

Sat 4/18

6:00 am-12:41 pm

3 stops31h 41m

$421

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/27

Sorted by cheapest first

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 March.
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 November is currently the most expensive (average of $337). 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 March 29, 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
9,509 reviews

Comfort

7.3

Crew

8.1

Overall

7.4

Boarding

7.7

Entertainment

7.1

Food

6.6

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
9,509 reviews
United Airlines
7.4
Good
9,509 reviews

Comfort

7.3

Crew

8.1

Overall

7.4

Boarding

7.7

Entertainment

7.1

Food

6.6

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
7.1
Good
11,521 reviews
United Airlines
7.4
Good
9,509 reviews

Comfort

7.3

Crew

8.1

Overall

7.4

Boarding

7.7

Entertainment

7.1

Food

6.6

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 fly from St. Louis to Montrose in about 5h 03m. The time it takes to get you to your destination can typically vary by up to . Airlines will cover a distance of 944 mi.

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

    Currently priced at $210, 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 43% 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 November is currently the most expensive (average of $337). 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 March 29, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$210Average$397FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$240Average$317FlexibilityNo cancel feeOn-time71%

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