HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Montrose

$121+ 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 7/29. Fares are subject to change and may not be available on all flights or dates of travel.
STL — MTJ
Jul 7 — Jul 141
Mon 7/7
Mon 7/14
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from St. Louis to Montrose 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 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 July 2, 2025.

Round-trip from

$239
(American Airlines)

One-way from

$121
(American Airlines)

Popular in

September

Cheapest in

August

Average price

$487
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. 1% potential increase in price ($8 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($23 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2025
Search Deals

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 July 2, 2025.

This American Airlines 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/247:01 amSTL - MTJ
1 stop7h 46mAmerican Airlines
Wed 8/272:37 pmMTJ - STL
1 stop4h 45mAmerican Airlines
Deal found 6/30$239
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/811:45 amSTL - MTJ
1 stop5h 20mSouthwest
Sun 10/124:30 pmMTJ - STL
1 stop6h 35mSouthwest
Deal found 7/1$277
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/154:45 pmSTL - MTJ
1 stop5h 06mUnited Airlines
Sat 7/193:30 pmMTJ - STL
1 stop4h 15mUnited Airlines
Deal found 6/30$339

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 July 2, 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

Sun 8/24

5:15 am-10:00 am

1 stop5h 45m

Montrose County

Wed 8/27

2:37 pm-8:22 pm

1 stop4h 45m

$239

St. LouisMontrose

STL - MTJ

STLMTJ

Lambert-St Louis

Sun 8/24

6:35 am-12:47 pm

2 stops7h 12m

Montrose County

Wed 8/27

3:24 pm-8:46 pm

1 stop4h 22m

$334

St. LouisMontrose

STL - MTJ

STLMTJ

Lambert-St Louis

Tue 7/29

5:30 am-9:57 am

1 stop5h 27m

$121

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/2

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 July 2, 2025.
Get a feel of what it's like to fly with Southwest, 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.
Southwest
8.0
Very good
4,272 reviews

Crew

8.6

Comfort

8.0

Entertainment

7.6

Overall

8.0

Boarding

8.2

Food

7.0

Reviews

1 / 20
10.0
Excellent

Gina,Apr 2025

LAS - DEN

Good, the crew was friendly and helpful. The pilot had great skills in keeping the plane stable through rough turbulence. Smooth landing, too! Thank you!
Southwest
8.0
Very good
4,272 reviews
Southwest
8.0
Very good
4,272 reviews

Crew

8.6

Comfort

8.0

Entertainment

7.6

Overall

8.0

Boarding

8.2

Food

7.0

Reviews

1 / 20
10.0
Excellent

Gina,Apr 2025

LAS - DEN

Good, the crew was friendly and helpful. The pilot had great skills in keeping the plane stable through rough turbulence. Smooth landing, too! Thank you!
United Airlines
7.4
Good
8,861 reviews
Southwest
8.0
Very good
4,272 reviews

Crew

8.6

Comfort

8.0

Entertainment

7.6

Overall

8.0

Boarding

8.2

Food

7.0

Reviews

1 / 20
10.0
Excellent

Gina,Apr 2025

LAS - DEN

Good, the crew was friendly and helpful. The pilot had great skills in keeping the plane stable through rough turbulence. Smooth landing, too! Thank you!
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,272 reviews

Crew

8.6

Comfort

8.0

Entertainment

7.6

Overall

8.0

Boarding

8.2

Food

7.0

Reviews

1 / 20
10.0
Excellent

Gina,Apr 2025

LAS - DEN

Good, the crew was friendly and helpful. The pilot had great skills in keeping the plane stable through rough turbulence. Smooth landing, too! Thank you!

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.

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

    Currently priced at $239, 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. Search Cheapflights for deals from Southwest and United Airlines - these airlines can fly you to your destination from $277 and $334, respectively. American Airlines is priced at 50% lower than the current average price of a flight leaving 3 months from now.

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

    The cheapest airlines for a one-way flight from St. Louis to Montrose are American Airlines ($121), Southwest ($169), and United Airlines ($281).

  • 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for St. Louis to Montrose

See prices for flight routes from nearby airports that may be better suited for you.
Kansas City to Denver flights
St. Louis to Denver flights
Springfield to Denver flights
Joplin to Denver flights
Kansas City to Grand Junction flights
St. Louis to Colorado Springs flights
Kansas City to Durango flights
Columbia to Denver flights
Kansas City to Colorado Springs flights
St. Louis to Durango flights
Springfield to Colorado Springs flights
St. Louis to Grand Junction flights
St. Louis to Aspen flights
Kansas City to Aspen flights
St. Louis to Gunnison flights
St. Louis to Vail flights
St. Louis to Hayden flights
Kansas City to Alamosa flights
Kansas City to Hayden flights
Columbia to Aspen flights
St. Louis to Cortez flights
Branson to Denver flights
Kansas City to Cortez flights
Joplin to Colorado Springs flights
Cape Girardeau to Denver flights
Springfield to Hayden flights
Columbia to Colorado Springs flights

Top 3 airlines flying from St. Louis to Montrose

Discover the top 3 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 July 2, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$259Average$392FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$281Average$549FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$397Average$568FlexibilityNo cancel feeOn-time63%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.