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Cheap flights from Montrose to St. Louis from $239

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Montrose to St. Louis departing on 3/6. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Montrose to St. Louis

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
3:39 pm - 11:34 pm
MTJ
-
STL
6h 55m
1 stop
United Airlines Logo
6:00 am - 12:46 pm
STL
-
MTJ
7h 46m
1 stop
$239United Airlines
Fri, Mar 6 - Tue, Mar 10
United Airlines Logo
3:39 pm - 8:41 pm
MTJ
-
STL
4h 02m
1 stop
United Airlines Logo
6:25 am - 2:37 pm
STL
-
MTJ
9h 12m
2 stops
$244United Airlines
Fri, Mar 6 - Tue, Mar 10
United Airlines Logo
1:42 pm - 10:59 pm
MTJ
-
STL
8h 17m
2 stops
United Airlines Logo
6:25 am - 12:32 pm
STL
-
MTJ
7h 07m
2 stops
$249United Airlines
Fri, Mar 6 - Tue, Mar 10
United Airlines Logo
1:36 pm - 8:42 pm
MTJ
-
STL
6h 06m
1 stop
United Airlines Logo
6:00 am - 11:26 am
STL
-
MTJ
6h 26m
1 stop
$322United Airlines
Fri, Jun 26 - Sat, Jul 4
United Airlines Logo
1:36 pm - 8:42 pm
MTJ
-
STL
6h 06m
1 stop
United Airlines Logo
6:00 am - 3:59 pm
STL
-
MTJ
10h 59m
2 stops
$327United Airlines
Fri, Jun 26 - Sat, Jul 4
United Airlines Logo
2:58 pm - 11:59 pm
MTJ
-
STL
8h 01m
1 stop
United Airlines Logo
5:00 am - 12:02 pm
STL
-
MTJ
8h 02m
1 stop
$349United Airlines
Mon, Mar 2 - Fri, Mar 6
United Airlines Logo
2:58 pm - 11:59 pm
MTJ
-
STL
8h 01m
1 stop
United Airlines Logo
10:00 am - 8:06 pm
STL
-
MTJ
11h 06m
2 stops
$354United Airlines
Mon, Mar 2 - Fri, Mar 6
United Airlines Logo
1:36 pm - 8:42 pm
MTJ
-
STL
6h 06m
1 stop
United Airlines Logo
4:50 pm - 8:17 pm
STL
-
MTJ
4h 27m
1 stop
$363United Airlines
Thu, Jul 2 - Mon, Jul 6
United Airlines Logo
1:36 pm - 8:42 pm
MTJ
-
STL
6h 06m
1 stop
United Airlines Logo
6:00 am - 3:59 pm
STL
-
MTJ
10h 59m
2 stops
$368United Airlines
Fri, Jun 26 - Sat, Jul 4
United Airlines Logo
7:15 am - 3:46 pm
MTJ
-
STL
7h 31m
2 stops
United Airlines Logo
6:00 am - 3:59 pm
STL
-
MTJ
10h 59m
2 stops
$472United Airlines
Fri, Jun 26 - Sat, Jul 4

United Airlines flights from Montrose to St. Louis

Our best United Airlines deals on Montrose to St. Louis flight tickets
United Airlines
Mar 6
MTJ3:39 pmMontrose County
6h 55m
1 stop
STL11:34 pmLambert-St Louis
Mar 10
STL6:00 amLambert-St Louis
7h 46m
1 stop
MTJ12:46 pmMontrose County
$239
United Airlines
Mar 6
MTJ3:39 pmMontrose County
4h 02m
1 stop
STL8:41 pmLambert-St Louis
Mar 10
STL6:25 amLambert-St Louis
9h 12m
2 stops
MTJ2:37 pmMontrose County
$244
United Airlines
Mar 6
MTJ1:42 pmMontrose County
8h 17m
2 stops
STL10:59 pmLambert-St Louis
Mar 10
STL6:25 amLambert-St Louis
7h 07m
2 stops
MTJ12:32 pmMontrose County
$249

momondo 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, momondo users made 832,500 searches. Data last updated February 19, 2026.
Use the filters below to find and compare flights from Montrose to St. Louis that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

MontroseSt. Louis

MTJ - STL

MTJSTL

Montrose County

Fri 3/6

3:39 pm-11:34 pm

1 stop6h 55m

Lambert-St Louis

Tue 3/10

6:00 am-12:46 pm

1 stop7h 46m

$239

MontroseSt. Louis

MTJ - STL

MTJSTL

Montrose County

Fri 3/6

3:39 pm-8:41 pm

1 stop4h 02m

Lambert-St Louis

Tue 3/10

6:25 am-2:37 pm

2 stops9h 12m

$244

MontroseSt. Louis

MTJ - STL

MTJSTL

Montrose County

Fri 3/6

1:42 pm-10:59 pm

2 stops8h 17m

Lambert-St Louis

Tue 3/10

6:25 am-12:32 pm

2 stops7h 07m

$249

MontroseSt. Louis

MTJ - STL

MTJSTL

Montrose County

Fri 6/26

1:36 pm-8:42 pm

1 stop6h 06m

Lambert-St Louis

Sat 7/4

6:00 am-11:26 am

1 stop6h 26m

$322

MontroseSt. Louis

MTJ - STL

MTJSTL

Montrose County

Fri 6/26

1:36 pm-8:42 pm

1 stop6h 06m

Lambert-St Louis

Sat 7/4

6:00 am-3:59 pm

2 stops10h 59m

$327

MontroseSt. Louis

MTJ - STL

MTJSTL

Montrose County

Mon 3/2

2:58 pm-11:59 pm

1 stop8h 01m

Lambert-St Louis

Fri 3/6

5:00 am-12:02 pm

1 stop8h 02m

$349

MontroseSt. Louis

MTJ - STL

MTJSTL

Montrose County

Mon 3/2

2:58 pm-11:59 pm

1 stop8h 01m

Lambert-St Louis

Fri 3/6

10:00 am-8:06 pm

2 stops11h 06m

$354

MontroseSt. Louis

MTJ - STL

MTJSTL

Montrose County

Thu 7/2

1:36 pm-8:42 pm

1 stop6h 06m

Lambert-St Louis

Mon 7/6

4:50 pm-8:17 pm

1 stop4h 27m

$363

MontroseSt. Louis

MTJ - STL

MTJSTL

Montrose County

Fri 6/26

1:36 pm-8:42 pm

1 stop6h 06m

Lambert-St Louis

Sat 7/4

6:00 am-3:59 pm

2 stops10h 59m

$368

MontroseSt. Louis

MTJ - STL

MTJSTL

Montrose County

Fri 6/26

7:15 am-3:46 pm

2 stops7h 31m

Lambert-St Louis

Sat 7/4

6:00 am-3:59 pm

2 stops10h 59m

$472

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

When to book flights from Montrose to St. Louis

Are you open to changing your travel dates? Check out the ideal times to fly from Montrose to St. Louis according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Montrose to St. Louis (MTJ to STL) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Montrose to St. Louis

Fastest flight time

3h 53m

Direct flights

None
The fastest flight from Montrose to St. Louis takes 3h 53m
There are no direct flights from Montrose to St. Louis. There are no popular flight routes from Montrose to St. Louis.
Search flight deals

  • How far is Montrose County to Lambert-St Louis by plane?

    Lambert-St Louis is 953.1 mi away from Montrose County. In terms of flight time, this usually takes a little over 3h 53m.

  • When did momondo last update prices for flights from Montrose County Airport to Lambert-St Louis Airport?

    Prices for flights from Montrose County Airport to Lambert-St Louis Airport are updated daily.

  • How many operators does momondo search for flights from Montrose County Airport to Lambert-St Louis Airport?

  • How old do you have to be to fly from Montrose County Airport to Lambert-St Louis Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Montrose County Airport to Lambert-St Louis Airport.

  • What documentation or ID do you need to fly to Lambert-St Louis Airport?

    The travel and health documents required for your trip to Lambert-St Louis Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Lambert-St Louis Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular airline from Montrose to St. Louis?

Best airlines flying from Montrose to St. Louis

Compare and see reviews for airlines that fly from Montrose to St. Louis with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $182Free CancellationRating
7.4
9,322 reviews
Search United Airlines flights
American AirlinesPriceFrom $227Free CancellationRating
7.2
11,313 reviews
Search American Airlines flights

  • How do I get Price Alerts for flights from Montrose to St. Louis?

    You can take advantage of momondo’s Price Alerts by first searching for your flights to Montrose from St. Louis. Flight offers will be shown to you in real-time. From there you can create a Price Alert by using our on-site widget.

  • How can I save money on flights from Montrose to St. Louis with momondo?

    By using tools like our “Price Calendar”, you can see the best day to fly round-trip for your travels. Our “Price Forecast” tool uses AI to predict whether you should purchase or hold off on booking for potentially cheaper prices. Explore shows you all flight options from a city or airport to build your own unique adventure. The Discover blog also provides valuable insights for saving money while booking your experience. After searching you can toggle on “Price Alerts” to track prices for your desired flight and book at the ideal moment.

  • How does momondo find its flight prices?

    momondo shows deals across 700+ competitors all at once. momondo is active in 30 international markets, so you can have access to a wide range of options from airlines and OTAs alike.

Traveling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
St. Charles
Chesterfield
Hermann
Fairview Heights
Maryland Heights
Florissant
O'Fallon
St. Peters
Collinsville
Wentzville
Fenton
Alton
Farmington
Clayton
Edwardsville
Eureka
Festus
Litchfield
Glencoe
Shrewsbury

Why use momondo?

Why should I use momondo to find a flight deal from Montrose to St. Louis?

Finding the right flight to St. Louis from Montrose is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to St. Louis quick and easy, saving you time and money.

Can I find flights from Montrose to St. Louis with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to St. Louis from Montrose with this policy.

How can momondo help me find flights from Montrose to St. Louis?

Once you have performed a search for Montrose to St. Louis flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Montrose to St. Louis right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to St. Louis from Montrose. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

An easier way to manage your St. Louis trip

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