MTJ - STL

$285 Find Cheap Flights from Montrose to St. Louis

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Montrose to St. Louis departing on 7/3. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to St. Louis

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Montrose to St. Louis, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Montrose to St. Louis, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$285
Typical prices: $708-$636
American Airlines
Fri 7/3Sun 7/5
MTJ - STL • 1 stop
Cheapest one-way
$333
United Airlines
Mon 9/21
MTJ - STL • 1 stop
Top airlines
Cheapest • from $285 (round-trip)
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Montrose and St. Louis. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg $399 (round-trip)
Shortest trip • 4h 43m (one-way)
Insights
Insights
Insights
Insights
When to travel
Cheapest • 100% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to St. Louis!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Montrose to St. Louis (MTJ-STL)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Montrose to St. Louis that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Montrose to St. Louis

Fri, Jul 3 - Sun, Jul 5
American Airlines Logo
2:22 pm - 9:48 pm
MTJ
-
STL
6h 26m
1 stop
American Airlines Logo
5:32 am - 9:45 am
STL
-
MTJ
5h 13m
1 stop
$285American Airlines
Fri, Jun 26 - Sat, Jul 4
United Airlines Logo
12:31 pm - 9:26 pm
MTJ
-
STL
7h 55m
1 stop
United Airlines Logo
6:14 am - 11:19 am
STL
-
MTJ
6h 05m
1 stop
$365United Airlines
Tue, Jun 30 - Mon, Jul 6
United Airlines Logo
3:25 pm - 8:43 pm
MTJ
-
STL
4h 18m
1 stop
United Airlines Logo
4:48 pm - 8:10 pm
STL
-
MTJ
4h 22m
1 stop
$382United Airlines
Fri, Jun 26 - Sat, Jul 4
United Airlines Logo
12:31 pm - 9:26 pm
MTJ
-
STL
7h 55m
1 stop
United Airlines Logo
6:00 am - 3:54 pm
STL
-
MTJ
10h 54m
2 stops
$384United Airlines
Fri, Jun 26 - Sat, Jul 4
American Airlines Logo
2:22 pm - 9:37 pm
MTJ
-
STL
6h 15m
1 stop
American Airlines Logo
8:38 am - 1:30 pm
STL
-
MTJ
5h 52m
1 stop
$390American Airlines
Wed, Jul 1 - Mon, Jul 6
United Airlines Logo
3:25 pm - 11:57 pm
MTJ
-
STL
7h 32m
1 stop
United Airlines Logo
6:00 am - 11:43 am
STL
-
MTJ
6h 43m
1 stop
$394United Airlines
Thu, Aug 13 - Mon, Aug 17
United Airlines Logo
3:24 pm - 8:46 pm
MTJ
-
STL
4h 22m
1 stop
United Airlines Logo
4:40 pm - 8:25 pm
STL
-
MTJ
4h 45m
1 stop
$416United Airlines
Fri, Jun 26 - Sat, Jul 4
United Airlines Logo
12:31 pm - 9:26 pm
MTJ
-
STL
7h 55m
1 stop
United Airlines Logo
6:00 am - 3:54 pm
STL
-
MTJ
10h 54m
2 stops
$420United Airlines
Fri, Jun 26 - Sat, Jul 4
United Airlines Logo
12:31 pm - 9:26 pm
MTJ
-
STL
7h 55m
1 stop
United Airlines Logo
6:00 am - 3:54 pm
STL
-
MTJ
10h 54m
2 stops
$425United Airlines
Thu, Aug 13 - Mon, Aug 17
United Airlines Logo
3:24 pm - 8:46 pm
MTJ
-
STL
4h 22m
1 stop
United Airlines Logo
4:40 pm - 8:25 pm
STL
-
MTJ
4h 45m
1 stop
$449United Airlines
Booking Insights

KAYAK's insights & trends for Montrose to St. Louis flights

Get data-powered insights and trends into flights from Montrose to St. Louis to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Montrose to St. Louis?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Montrose to St. Louis departing in July.

What is the cheapest month to fly from Montrose to St. Louis?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Montrose to St. Louis, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Montrose to St. Louis is December, where tickets cost $0 (return) on average. On the other hand, the most expensive months are July and November, where the average cost of round-trip tickets is $672 and $577 respectively.

Good to know

Low seasonSeptember
Cheapest flight$285
Best time to beat the crowds with an average 53% drop in price.
Most popular time to fly with an average 13% increase in price.
Flight from Montrose to St. Louis

When to book flights from Montrose to St. Louis

Are your dates flexible? Find out the best times to travel from Montrose to St. Louis based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Montrose to St. Louis

  • What is the cheapest flight from Montrose to St. Louis?

    In the last 3 days, the lowest price for a flight from Montrose to St. Louis was $333 for a one-way ticket and $285 for a round-trip.

  • Do I need a passport to fly between Montrose and St. Louis?

    Even though you are not required to have a passport, keep in mind that an official ID is needed to board the airplane.

  • Which airports will I be using when flying from Montrose to St. Louis?

    Montrose and St. Louis are both served by 1 main airport. You will leave Montrose from Montrose County and will be arriving at Lambert-St Louis.

  • Which aircraft models fly most regularly from Montrose to St. Louis?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Montrose to St. Louis?

    Star Alliance, and oneworld are the airline alliances operating flights between Montrose and St. Louis, with Star Alliance being the most commonly used for this route.

  • Which is the best airline for flights from Montrose to St. Louis, United Airlines or American Airlines?

    The two airlines most popular with KAYAK users for flights from Montrose to St. Louis are United Airlines and American Airlines. With an average price for the route of $373 and an overall rating of 7.4, United Airlines is the most popular choice. American Airlines is also a great choice for the route, with an average price of $436 and an overall rating of 7.1.

  • How does KAYAK find such low prices on flights from Montrose to St. Louis?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Montrose to St. Louis.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Montrose to St. Louis?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to St. Louis from Montrose is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Montrose to St. Louis?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to St. Louis with an airline and back to Montrose with another airline. Booking your flights between Montrose and STL can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Montrose to St. Louis?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to St. Louis from Montrose up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airlines flying from Montrose to St. Louis

 
See real verified KAYAK customer reviews for airlines flying from Montrose to St. Louis. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Montrose to St. Louis? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 9766 reviews
7.3Comfort
7.7Boarding
6.6Food
7.1Entertainment
8.1Crew
Airline reviews

Had a one hour delay due to mechanical issue. I didn’t think I’d be able to make my connecting flight, but they waited for me and greeted me when I arrived to help things run smooth.

10.0 ExcellentAnonymous, May 2026
DEN - PDX
Read more United Airlines reviews

Had a one hour delay due to mechanical issue. I didn’t think I’d be able to make my connecting flight, but they waited for me and greeted me when I arrived to help things run smooth.

O’hsre taxi and deboarding took 40 minutes. Needed 20 minutes extra time between connecting flights to avoid running through terminal.

Was great in general, try to respect time and excuses when slight changes have been made, appreciated!

Really hard landing... as in slammed into the runway then hit the brakes really hard ...

Every staff member was professional, friendly and courteous. The pizza twist was ok. It was warm but too much dough.

Wonderful in-seat entertainment with seatback screens and huge selection of quality movies. The ability to bluetooth connect headphones was amazing.

Flight left on time and we arrived 25 minutes early! There was a gate available when we arrived so early on a busy Sunday afternoon! Flight attendants came around twice with the drinks cart.

Airport terminal was outdated, flight was on a small jet with no wifi

Both of my flights arrived early and check in process was smooth

Sitting on the runway after we land for almost two hours! Not sure if we should blame United or Just Dumpy Vance.

Movies on my phone are great. It would be nice to have a gluten free snack option.

It was what i expected. I like the movies you can access from your phone. It would be nice if there was a gluten free snack offered. But I did bring my own snack knowing there would not be a gluten free option

The flight was peaceful, just s slight turbulence, pilots and crews were all nice and made a great job! Arrived safely in the Philippines. Thank you ya’ll!

Ontario airport boarding was very easy to park and access, is clean and TSA took 10 minutes total. Check-in was a breeze and cruise was very nice.

American Airlines II: Delay Boogaloo. Multiple gate changes, delays, boarded and then MORE delays. I hate to say this won’t matter, but posting stuff about major corporations in 2026 is a post-modern “scream into the void.” Was multiple hours late coming home, so there you go.

Awful, tons of delays, I got into Chicago multiple hours late meaning I hit the very traffic I tried so desperately to avoid. Just empty apologies from American Airlines text alerts. Trash behavior from a trash airline.

The flight attendants were very friendly, efficient, and helpful. The plane was ahead of schedule, and it all went very smoothly. Thank you.

They lost my baggage and I am still struggling to the information and update

We got delayed getting out of DFW for broken overhead bins. Once the flight got underway the captain kept the seatbelt sign lit the entire flight despite little perceptible turbulence, preventing use of the rest rooms and any sort of refreshment service in the main cabin.

Flight delays for communication overall not a good experience uncomfortable on the plane. Person in front of me reclined his seat, putting them inches from my lap.

Everything you need to know for your flight from Montrose to St. Louis

Information on your arrival and departure airports