HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
St. Louis

$201+ 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 6/17. Fares are subject to change and may not be available on all flights or dates of travel.
MTJ — STL
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Montrose to St. Louis 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 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 June 12, 2025.

Round-trip from

$377
(United Airlines)

One-way from

$201
(American Airlines)

Popular in

July

Cheapest in

April

Average price

$436
From Montrose County to Lambert-St Louis
Search Deals
One-way flight from Montrose County to Lambert-St Louis
Search Deals
Highest demand for flights based on searches. 16% potential increase in price ($92 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 7% potential price decrease ($32 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 2025
Search Deals

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 June 12, 2025.

This United Airlines deal was found by Cheapflights users on 6/9. 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 6/251:00 pmMTJ - STL
1 stop8h 15mUnited Airlines
Sun 6/294:45 pmSTL - MTJ
1 stop5h 06mUnited Airlines
Deal found 6/9$377
This American Airlines deal was found by Cheapflights users on 6/9. 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.
Tue 6/172:39 pmMTJ - STL
1 stop5h 15mAmerican Airlines
Sat 6/215:37 amSTL - MTJ
1 stop5h 03mAmerican Airlines
Deal found 6/9$401
This Southwest deal was found by Cheapflights users on 6/10. 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 7/251:55 pmMTJ - STL
2 stops10h 35mSouthwest
Fri 8/15:15 amSTL - MTJ
2 stops9h 00mSouthwest
Deal found 6/10$550

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 June 12, 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

Wed 6/25

1:00 pm-10:15 pm

1 stop8h 15m

Lambert-St Louis

Sun 6/29

4:45 pm-8:51 pm

1 stop5h 06m

$377

MontroseSt. Louis

MTJ - STL

MTJSTL

Montrose County

Wed 6/25

2:39 pm-8:54 pm

1 stop5h 15m

Lambert-St Louis

Sun 6/29

8:05 pm-9:58 am

2 stops14h 53m

$546

MontroseSt. Louis

MTJ - STL

MTJSTL

Montrose County

Fri 7/25

1:55 pm-1:30 am

2 stops10h 35m

Lambert-St Louis

Fri 8/1

5:15 am-1:15 pm

2 stops9h 00m

$550

MontroseSt. Louis

MTJ - STL

MTJSTL

Montrose County

Tue 6/17

2:39 pm-11:19 pm

1 stop7h 40m

$201

MontroseSt. Louis

MTJ - STL

MTJSTL

Montrose County

Tue 6/17

1:35 pm-10:45 pm

2 stops8h 10m

$241

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/10

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.

Rainfall in St. Louis by month

Plan your trip to St. Louis by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in St. Louis ranges from 2.2 - 4.7 inches per month. May is typically the wettest month, when rainfall can reach 4.7 in. February is typically the driest time to visit St. Louis when rainfall is around 2.2 in.

Temperature in St. Louis by month

Plan your trip to St. Louis by taking into account the average temperature totals by month.

If weather is an important factor for your trip to St. Louis, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 32.0 F).

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 June 12, 2025.
To help decide which airline to fly from Montrose to St. Louis, see what other customers have to say about Southwest, United Airlines and American Airlines. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,287 reviews

Crew

8.6

Overall

8.0

Boarding

8.2

Comfort

8.0

Food

7.1

Entertainment

7.6

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
4,287 reviews
Southwest
8.0
Very good
4,287 reviews

Crew

8.6

Overall

8.0

Boarding

8.2

Comfort

8.0

Food

7.1

Entertainment

7.6

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
8,790 reviews
Southwest
8.0
Very good
4,287 reviews

Crew

8.6

Overall

8.0

Boarding

8.2

Comfort

8.0

Food

7.1

Entertainment

7.6

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
4,287 reviews

Crew

8.6

Overall

8.0

Boarding

8.2

Comfort

8.0

Food

7.1

Entertainment

7.6

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, United Airlines ($377), American Airlines ($546), and Southwest ($550) offers the cheapest pricing from Montrose to St. Louis. You may be able to fly from Montrose to St. Louis for 16% less than the average price by searching for these airlines.

  • 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
Festus
Alton
Farmington

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 Montrose to St. Louis

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

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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$237Average$421FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$337Average$436FlexibilityNo cancel feeOn-time71%

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.