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Cheap flights from Montrose to St. Louis from $260

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Montrose to St. Louis departing on 7/30. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Montrose to St. Louis

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
2:21 pm - 8:26 pm
MTJ
-
STL
5h 05m
1 stop
American Airlines Logo
8:36 am - 1:30 pm
STL
-
MTJ
5h 54m
1 stop
$317American Airlines
Sat, Aug 22 - Tue, Sep 1
United Airlines Logo
7:15 am - 12:40 pm
MTJ
-
STL
4h 25m
1 stop
United Airlines Logo
12:59 pm - 8:25 pm
STL
-
MTJ
8h 26m
2 stops
$342United Airlines
Sat, Aug 22 - Tue, Sep 1
Southwest Logo
9:15 am - 3:30 pm
MTJ
-
STL
5h 15m
2 stops
Southwest Logo
12:45 pm - 7:25 pm
STL
-
MTJ
7h 40m
2 stops
$356Southwest
Sat, Aug 22 - Tue, Sep 1
United Airlines Logo
7:30 am - 12:43 pm
MTJ
-
STL
4h 13m
1 stop
United Airlines Logo
4:30 pm - 8:09 pm
STL
-
MTJ
4h 39m
1 stop
$437United Airlines
Tue, Dec 8 - Wed, Dec 9
United Airlines Logo
7:30 am - 11:25 pm
MTJ
-
STL
14h 55m
2 stops
United Airlines Logo
4:30 pm - 8:09 pm
STL
-
MTJ
4h 39m
1 stop
$442United Airlines
Tue, Dec 8 - Wed, Dec 9
United Airlines Logo
7:30 am - 12:43 pm
MTJ
-
STL
4h 13m
1 stop
United Airlines Logo
4:30 pm - 8:09 pm
STL
-
MTJ
4h 39m
1 stop
$450United Airlines
Tue, Dec 8 - Wed, Dec 9
United Airlines Logo
7:30 am - 11:25 pm
MTJ
-
STL
14h 55m
2 stops
United Airlines Logo
4:30 pm - 8:09 pm
STL
-
MTJ
4h 39m
1 stop
$455United Airlines
Tue, Dec 8 - Wed, Dec 9
United Airlines Logo
7:30 am - 12:43 pm
MTJ
-
STL
4h 13m
1 stop
United Airlines Logo
4:30 pm - 8:09 pm
STL
-
MTJ
4h 39m
1 stop
$503United Airlines
Tue, Dec 8 - Wed, Dec 9
United Airlines Logo
7:30 am - 11:25 pm
MTJ
-
STL
14h 55m
2 stops
United Airlines Logo
4:30 pm - 8:09 pm
STL
-
MTJ
4h 39m
1 stop
$508United Airlines
Tue, Dec 8 - Wed, Dec 9
United Airlines Logo
7:30 am - 12:43 pm
MTJ
-
STL
4h 13m
1 stop
United Airlines Logo
4:30 pm - 8:09 pm
STL
-
MTJ
4h 39m
1 stop
$517United Airlines
Tue, Dec 8 - Wed, Dec 9

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United Airlines flights from Montrose to St. Louis

Our best United Airlines deals on Montrose to St. Louis flight tickets
United Airlines
Aug 22
MTJ7:15 amMontrose County
4h 25m
1 stop
STL12:40 pmLambert-St Louis
Sep 1
STL12:59 pmLambert-St Louis
8h 26m
2 stops
MTJ8:25 pmMontrose County
$342
United Airlines
Dec 8
MTJ7:30 amMontrose County
4h 13m
1 stop
STL12:43 pmLambert-St Louis
Dec 9
STL4:30 pmLambert-St Louis
4h 39m
1 stop
MTJ8:09 pmMontrose County
$437
United Airlines
Dec 8
MTJ7:30 amMontrose County
14h 55m
2 stops
STL11:25 pmLambert-St Louis
Dec 9
STL4:30 pmLambert-St Louis
4h 39m
1 stop
MTJ8:09 pmMontrose County
$442

Southwest flights from Montrose to St. Louis

Our best Southwest deals on Montrose to St. Louis flight tickets
Southwest
Aug 22
MTJ9:15 amMontrose County
5h 15m
2 stops
STL3:30 pmLambert-St Louis
Sep 1
STL12:45 pmLambert-St Louis
7h 40m
2 stops
MTJ7:25 pmMontrose County
$356
Southwest
Aug 1
MTJ8:00 amMontrose County
11h 00m
2 stops
STL8:00 pmLambert-St Louis
Aug 4
STL2:50 pmLambert-St Louis
5h 35m
2 stops
MTJ7:25 pmMontrose County
$736

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 July 23, 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

Cheapest round-trip

MontroseSt. Louis

MTJ - STL

MTJSTL

Montrose County

Sat 8/22

2:21 pm-8:26 pm

1 stop5h 05m

Lambert-St Louis

Tue 9/1

8:36 am-1:30 pm

1 stop5h 54m

$317

MontroseSt. Louis

MTJ - STL

MTJSTL

Montrose County

Sat 8/22

7:15 am-12:40 pm

1 stop4h 25m

Lambert-St Louis

Tue 9/1

12:59 pm-8:25 pm

2 stops8h 26m

$342

MontroseSt. Louis

MTJ - STL

MTJSTL

Montrose County

Sat 8/22

9:15 am-3:30 pm

2 stops5h 15m

Lambert-St Louis

Tue 9/1

12:45 pm-7:25 pm

2 stops7h 40m

$356
Quickest round-trip

MontroseSt. Louis

MTJ - STL

MTJSTL

Montrose County

Tue 12/8

7:30 am-12:43 pm

1 stop4h 13m

Lambert-St Louis

Wed 12/9

4:30 pm-8:09 pm

1 stop4h 39m

$437

MontroseSt. Louis

MTJ - STL

MTJSTL

Montrose County

Tue 12/8

7:30 am-11:25 pm

2 stops14h 55m

Lambert-St Louis

Wed 12/9

4:30 pm-8:09 pm

1 stop4h 39m

$442

MontroseSt. Louis

MTJ - STL

MTJSTL

Montrose County

Tue 12/8

7:30 am-12:43 pm

1 stop4h 13m

Lambert-St Louis

Wed 12/9

4:30 pm-8:09 pm

1 stop4h 39m

$450

MontroseSt. Louis

MTJ - STL

MTJSTL

Montrose County

Tue 12/8

7:30 am-11:25 pm

2 stops14h 55m

Lambert-St Louis

Wed 12/9

4:30 pm-8:09 pm

1 stop4h 39m

$455

MontroseSt. Louis

MTJ - STL

MTJSTL

Montrose County

Tue 12/8

7:30 am-12:43 pm

1 stop4h 13m

Lambert-St Louis

Wed 12/9

4:30 pm-8:09 pm

1 stop4h 39m

$503

MontroseSt. Louis

MTJ - STL

MTJSTL

Montrose County

Tue 12/8

7:30 am-11:25 pm

2 stops14h 55m

Lambert-St Louis

Wed 12/9

4:30 pm-8:09 pm

1 stop4h 39m

$508

MontroseSt. Louis

MTJ - STL

MTJSTL

Montrose County

Tue 12/8

7:30 am-12:43 pm

1 stop4h 13m

Lambert-St Louis

Wed 12/9

4:30 pm-8:09 pm

1 stop4h 39m

$517

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 15 resultsSorted by cheapest first
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See travel insights to St. Louis from

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

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 month to fly to St. Louis?

In general, September is the cheapest month to fly from Montrose to St. Louis. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $0. The month of August is another great option to travel to St. Louis, with average flight prices from Montrose averaging around $0.

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

4h 13m

Direct flights

None
The fastest flight from Montrose to St. Louis takes 4h 13m
There are no direct flights from Montrose to St. Louis. There are no popular flight routes from Montrose to St. Louis.
Search flight deals

Frequently asked questions about flying from Montrose to St. Louis

  • 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 4h 13m.

  • 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 $231Free CancellationRating
7.4
10,027 reviews
Search United Airlines flights

Traveling to a place near St. Louis?

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

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