Cheap flights from St. Louis to Montrose from $241

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to Montrose departing on 9/8. 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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Find the cheapest flights from St. Louis to Montrose (STL-MTJ)

Cheap round-trip flights

American Airlines Logo
8:50 am - 1:32 pmSTL-MTJ
5h 42m1 stop
American Airlines Logo
2:29 pm - 10:50 pmMTJ-STL
7h 21m1 stop
$241American Airlines
Find Deal
Mon, Sep 8 - Fri, Sep 12
United Airlines Logo
4:50 pm - 8:19 pmSTL-MTJ
4h 29m1 stop
United Airlines Logo
1:30 pm - 9:54 pmMTJ-STL
7h 24m1 stop
$309United Airlines
Find Deal
Wed, Oct 22 - Mon, Nov 3
United Airlines Logo
5:00 am - 12:46 pmSTL-MTJ
8h 46m2 stops
United Airlines Logo
1:30 pm - 9:54 pmMTJ-STL
7h 24m1 stop
$314United Airlines
Find Deal
Wed, Oct 22 - Mon, Nov 3
American Airlines Logo
8:50 am - 1:32 pmSTL-MTJ
5h 42m1 stop
American Airlines Logo
2:29 pm - 9:26 amMTJ-STL
17h 57m2 stops
$344American Airlines
Find Deal
Mon, Sep 8 - Fri, Sep 12
United Airlines Logo
5:15 am - 8:22 pmSTL-MTJ
16h 07m1 stop
United Airlines Logo
3:25 pm - 8:46 pmMTJ-STL
4h 21m1 stop
$390United Airlines
Find Deal
Wed, Sep 24 - Tue, Sep 30
United Airlines Logo
12:25 pm - 8:19 pmSTL-MTJ
8h 54m2 stops
United Airlines Logo
1:30 pm - 3:47 pmMTJ-STL
25h 17m2 stops
$426United Airlines
Find Deal
Wed, Oct 22 - Mon, Nov 3
United Airlines Logo
12:35 pm - 8:22 pmSTL-MTJ
8h 47m2 stops
United Airlines Logo
7:30 am - 6:23 pmMTJ-STL
9h 53m2 stops
$440United Airlines
Find Deal
Sun, Aug 31 - Thu, Sep 4
United Airlines Logo
5:15 am - 8:22 pmSTL-MTJ
16h 07m1 stop
United Airlines Logo
7:30 am - 10:00 pmMTJ-STL
13h 30m3 stops
$457United Airlines
Find Deal
Wed, Sep 24 - Tue, Sep 30
United Airlines Logo
5:15 am - 8:22 pmSTL-MTJ
16h 07m1 stop
United Airlines Logo
3:25 pm - 3:44 pmMTJ-STL
23h 19m2 stops
$459United Airlines
Find Deal
Wed, Sep 24 - Tue, Sep 30
United Airlines Logo
4:40 pm - 8:22 pmSTL-MTJ
4h 42m1 stop
United Airlines Logo
3:25 pm - 2:27 pmMTJ-STL
22h 02m2 stops
$499United Airlines
Find Deal
Mon, Sep 22 - Sun, Sep 28

American Airlines flights from St. Louis to Montrose

Our best American Airlines deals on St. Louis to Montrose flight tickets
American Airlines
Sep 8
STL8:50 amLambert-St Louis
5h 42m
1 stop
MTJ1:32 pmMontrose County
Sep 12
MTJ2:29 pmMontrose County
7h 21m
1 stop
STL10:50 pmLambert-St Louis
American Airlines
Sep 8
STL8:50 amLambert-St Louis
5h 42m
1 stop
MTJ1:32 pmMontrose County
Sep 12
MTJ2:29 pmMontrose County
17h 57m
2 stops
STL9:26 amLambert-St Louis
American Airlines
Aug 24
STL9:23 amLambert-St Louis
5h 24m
1 stop
MTJ1:47 pmMontrose County
Aug 27
MTJ2:37 pmMontrose County
7h 37m
1 stop
STL11:14 pmLambert-St Louis

United Airlines flights from St. Louis to Montrose

Our best United Airlines deals on St. Louis to Montrose flight tickets
United Airlines
Oct 22
STL4:50 pmLambert-St Louis
4h 29m
1 stop
MTJ8:19 pmMontrose County
Nov 3
MTJ1:30 pmMontrose County
7h 24m
1 stop
STL9:54 pmLambert-St Louis
United Airlines
Oct 22
STL5:00 amLambert-St Louis
8h 46m
2 stops
MTJ12:46 pmMontrose County
Nov 3
MTJ1:30 pmMontrose County
7h 24m
1 stop
STL9:54 pmLambert-St Louis
United Airlines
Sep 24
STL5:15 amLambert-St Louis
16h 07m
1 stop
MTJ8:22 pmMontrose County
Sep 30
MTJ3:25 pmMontrose County
4h 21m
1 stop
STL8:46 pmLambert-St Louis

momondo 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, momondo users made 832,500 searches. Data last updated August 18, 2025.
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

St. LouisMontrose

STL - MTJ

STLMTJ

Lambert-St Louis

Mon 9/8

8:50 am-1:32 pm

1 stop5h 42m

Montrose County

Fri 9/12

2:29 pm-10:50 pm

1 stop7h 21m

$241

St. LouisMontrose

STL - MTJ

STLMTJ

Lambert-St Louis

Wed 10/22

4:50 pm-8:19 pm

1 stop4h 29m

Montrose County

Mon 11/3

1:30 pm-9:54 pm

1 stop7h 24m

$309

St. LouisMontrose

STL - MTJ

STLMTJ

Lambert-St Louis

Wed 10/22

5:00 am-12:46 pm

2 stops8h 46m

Montrose County

Mon 11/3

1:30 pm-9:54 pm

1 stop7h 24m

$314

St. LouisMontrose

STL - MTJ

STLMTJ

Lambert-St Louis

Mon 9/8

8:50 am-1:32 pm

1 stop5h 42m

Montrose County

Fri 9/12

2:29 pm-9:26 am

2 stops17h 57m

$344

St. LouisMontrose

STL - MTJ

STLMTJ

Lambert-St Louis

Wed 9/24

5:15 am-8:22 pm

1 stop16h 07m

Montrose County

Tue 9/30

3:25 pm-8:46 pm

1 stop4h 21m

$390

St. LouisMontrose

STL - MTJ

STLMTJ

Lambert-St Louis

Wed 10/22

12:25 pm-8:19 pm

2 stops8h 54m

Montrose County

Mon 11/3

1:30 pm-3:47 pm

2 stops25h 17m

$426

St. LouisMontrose

STL - MTJ

STLMTJ

Lambert-St Louis

Sun 8/31

12:35 pm-8:22 pm

2 stops8h 47m

Montrose County

Thu 9/4

7:30 am-6:23 pm

2 stops9h 53m

$440

St. LouisMontrose

STL - MTJ

STLMTJ

Lambert-St Louis

Wed 9/24

5:15 am-8:22 pm

1 stop16h 07m

Montrose County

Tue 9/30

7:30 am-10:00 pm

3 stops13h 30m

$457

St. LouisMontrose

STL - MTJ

STLMTJ

Lambert-St Louis

Wed 9/24

5:15 am-8:22 pm

1 stop16h 07m

Montrose County

Tue 9/30

3:25 pm-3:44 pm

2 stops23h 19m

$459

St. LouisMontrose

STL - MTJ

STLMTJ

Lambert-St Louis

Mon 9/22

4:40 pm-8:22 pm

1 stop4h 42m

Montrose County

Sun 9/28

3:25 pm-2:27 pm

2 stops22h 02m

$499

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

See travel insights to Montrose from

How to get the cheapest flight ticket from St. Louis to Montrose

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest day to depart on your flight to Montrose?

On average, the least expensive day to fly to Montrose from St. Louis is on a Friday. momondo users have found tickets for Friday departures for as low as $353. However, this price may fluctuate depending on the airline, the season, and holidays. When flying out on a Thursday, the most expensive travel day of the week, you can expect to see flight prices from St. Louis to Montrose for around $601.

What is the cheapest time of day to depart on your flight to Montrose?

According to our data, the cheapest time of day to fly to Montrose is in the morning. momondo users have found flights departing from St. Louis to Montrose in the morning for as low as $442. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. In the afternoon is when there is more demand to fly to Montrose, so prices are often more expensive at around $521 per ticket.

When to book flights from St. Louis to Montrose

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

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

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

Best Price Found

$241

Fastest flight time

4h 29m

Direct flights

None

Airports in Montrose

1 airport
The best flight deal from St. Louis to Montrose found on momondo in the last 72 hours is $241
The fastest flight from St. Louis to Montrose takes 4h 29m
There are no direct flights from St. Louis to Montrose. Popular non-direct route for this connection is Lambert-St Louis Airport - Montrose County Airport.
There is 1 airport near Montrose: Montrose County (MTJ)
  • How far is Lambert-St Louis to Montrose County by plane?

    Lambert-St Louis and Montrose County are 953.1 mi apart from one another. A reasonable flight in good conditions will take 4h 29m.

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

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

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

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

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Lambert-St Louis Airport to Montrose County Airport.

  • What documentation or ID do you need to fly to Montrose County Airport?

    The travel and health documents you'll need for your trip to Montrose County Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Montrose County Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

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

Best airlines flying from St. Louis to Montrose

Compare and see reviews for airlines that fly from St. Louis to Montrose with momondo
Airline
Rating
Free Cancellation
Price
American AirlinesPriceFrom $240Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
United AirlinesPriceFrom $281Free CancellationRating
7.4
8,925 reviews
Search United Airlines flights
SouthwestPriceFrom $397Free CancellationRating
8.0
4,246 reviews
Search Southwest flights

Traveling to a place near Montrose?

Book flights to Montrose if you plan to visit one of these locations
Delta

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from St. Louis to Montrose for you.

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

All flight searches from St. Louis to Montrose on momondo can be filtered to show those which offer flexible booking policies.

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

Once you have performed a search for St. Louis to Montrose 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 St. Louis to Montrose right now. Can momondo alert me if prices change?

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1 adult
Sat 8/23
Sat 8/30

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