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$119+ Cheap flights from Montrose (MTJ) to Illinois

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 12/13. Fares are subject to change and may not be available on all flights or dates of travel.
MTJ — ORD
Aug 4 — Aug 111
Mon 8/4
Mon 8/11
1 adult, Economy
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Cheap flight deals from Montrose to Illinois

Keep the following information in mind while searching for Montrose to Illinois flight deals. Data was last updated July 30, 2025.

Round-trip from

$239
(American Airlines)

One-way from

$119
(American Airlines)

Popular in

December

Cheapest in

January

Average price

$544

Good round-trip deal

$370 or less

Good one-way deal

$295 or less
From Montrose County to Illinois
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One-way flight from Montrose County to Illinois
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Highest demand for flights based on searches. 2% potential increase in price ($9 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($16 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Price to beat on a round-trip flight from Montrose County to Illinois.
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Price to beat on a one-way flight from Montrose County to Illinois.
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Find flight deals from Montrose to Illinois

Cheapest flights from Montrose to Illinois
Explore the most affordable flight options available from Montrose to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 30, 2025.

This American Airlines deal was found by Cheapflights users on 7/29. 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.
Wed 8/272:37 pmMTJ - STL
1 stop7h 37mAmerican Airlines
Sun 8/317:01 amSTL - MTJ
1 stop7h 46mAmerican Airlines
Deal found 7/29$239
This United Airlines deal was found by Cheapflights users on 7/28. 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 10/151:45 pmMTJ - ORD
1 stop5h 10mUnited Airlines
Wed 10/2210:53 amORD - MTJ
1 stop4h 36mUnited Airlines
Deal found 7/28$249
This Southwest deal was found by Cheapflights users on 7/28. 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.
Wed 10/154:50 pmMTJ - ORD
1 stop5h 15mSouthwest
Wed 10/226:15 amORD - MTJ
2 stops10h 50mSouthwest
Deal found 7/28$293
This American Airlines deal was found by Cheapflights users on 7/29. 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.
Thu 8/212:37 pmMTJ - ORD
1 stop8h 22mAmerican Airlines
Mon 8/2510:34 pmORD - MTJ
2 stops16h 13mAmerican Airlines
Deal found 7/29$308
This United Airlines deal was found by Cheapflights users on 7/29. 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 8/271:00 pmMTJ - STL
1 stop8h 16mUnited Airlines
Sun 8/3111:30 amSTL - MTJ
2 stops9h 52mUnited Airlines
Deal found 7/29$314
This Southwest deal was found by Cheapflights users on 7/28. 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.
Wed 10/154:50 pmMTJ - MDW
1 stop4h 50mSouthwest
Wed 10/2211:10 amMDW - MTJ
1 stop5h 55mSouthwest
Deal found 7/28$316
This United Airlines deal was found by Cheapflights users on 7/29. 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 9/171:05 pmMTJ - PIA
1 stop8h 10mUnited Airlines
Sat 9/208:45 amPIA - MTJ
1 stop5h 02mUnited Airlines
Deal found 7/29$471
This American Airlines deal was found by Cheapflights users on 7/29. 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.
Wed 9/172:38 pmMTJ - SPI
3 stops21h 06mAmerican Airlines
Sat 9/206:31 pmSPI - MTJ
2 stops20h 14mAmerican Airlines
Deal found 7/29$599

Cheapflights Fare Finder

 
Customize your flight search to find flights from Montrose to Illinois 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 July 30, 2025.
Use the filters below to find and compare flights from Montrose to Illinois that are best for you.

Fly from

Montrose

Fly to

Illinois

Route

Depart

Return

Price

MontroseSt. Louis

MTJ - STL

MTJSTL

Montrose County

Wed 8/27

2:37 pm-11:14 pm

1 stop7h 37m

Lambert-St Louis

Sun 8/31

7:01 am-1:47 pm

1 stop7h 46m

$239

MontroseChicago

MTJ - ORD

MTJORD

Montrose County

Wed 10/15

1:45 pm-7:55 pm

1 stop5h 10m

Chicago O'Hare Intl

Wed 10/22

10:53 am-2:29 pm

1 stop4h 36m

$249

MontroseChicago

MTJ - ORD

MTJORD

Montrose County

Wed 10/15

4:50 pm-11:05 pm

1 stop5h 15m

Chicago O'Hare Intl

Wed 10/22

6:15 am-4:05 pm

2 stops10h 50m

$293

MontroseChicago

MTJ - ORD

MTJORD

Montrose County

Thu 8/21

2:37 pm-11:59 pm

1 stop8h 22m

Chicago O'Hare Intl

Mon 8/25

10:34 pm-1:47 pm

2 stops16h 13m

$308

MontroseSt. Louis

MTJ - STL

MTJSTL

Montrose County

Wed 8/27

1:00 pm-10:16 pm

1 stop8h 16m

Lambert-St Louis

Sun 8/31

11:30 am-8:22 pm

2 stops9h 52m

$314

MontroseChicago

MTJ - MDW

MTJMDW

Montrose County

Wed 10/15

4:50 pm-10:40 pm

1 stop4h 50m

Chicago Midway

Wed 10/22

11:10 am-4:05 pm

1 stop5h 55m

$316

MontrosePeoria

MTJ - PIA

MTJPIA

Montrose County

Wed 9/17

1:05 pm-10:15 pm

1 stop8h 10m

Greater Peoria

Sat 9/20

8:45 am-12:47 pm

1 stop5h 02m

$471

MontroseSpringfield

MTJ - SPI

MTJSPI

Montrose County

Wed 9/17

2:38 pm-12:44 pm

3 stops21h 06m

Springfield Capital

Sat 9/20

6:31 pm-1:45 pm

2 stops20h 14m

$599

MontroseSt. Louis

MTJ - STL

MTJSTL

Montrose County

Sat 12/13

12:47 pm-6:15 pm

1 stop4h 28m

$119

MontroseSt. Louis

MTJ - STL

MTJSTL

Montrose County

Sat 12/13

1:35 pm-10:45 pm

2 stops8h 10m

$124

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/30

Showing 1-10 of 15 results
1
2

Best time to book a flight from Montrose to Illinois

Have a flexible travel schedule? Discover the best time to fly to Illinois 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 Illinois

What is the cheapest month to book a flight from Montrose to Illinois?

Currently, August is the cheapest month in which you can book a flight from Montrose to Illinois (average of $245). Flying from Montrose to Illinois in March is currently the most expensive (average of $321). 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.

What is the cheapest time of day to fly from MTJ to IL?

Find hourly flight availability from Montrose to Illinois. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 30, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Montrose to Illinois as you normally would.

How much does it cost to fly round-trip from Montrose to Illinois?

Reviews of airlines servicing Illinois

Get insights into the airlines that provide service to Illinois. 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 Illinois. Reviews last updated July 30, 2025.
Get a feel of what it's like to fly with Southwest, United Airlines, and American Airlines from Montrose to Illinois by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,241 reviews

Crew

8.6

Boarding

8.1

Comfort

8.0

Overall

8.0

Entertainment

7.5

Food

7.0

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
Southwest
8.0
Very good
4,241 reviews
Southwest
8.0
Very good
4,241 reviews

Crew

8.6

Boarding

8.1

Comfort

8.0

Overall

8.0

Entertainment

7.5

Food

7.0

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
United Airlines
7.4
Good
8,896 reviews
Southwest
8.0
Very good
4,241 reviews

Crew

8.6

Boarding

8.1

Comfort

8.0

Overall

8.0

Entertainment

7.5

Food

7.0

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,241 reviews

Crew

8.6

Boarding

8.1

Comfort

8.0

Overall

8.0

Entertainment

7.5

Food

7.0

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.

Related info for your journey

Find useful and relevant information for your journey from Montrose to Illinois. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Montrose to Illinois?

    Montrose County (MTJ), located 2.3 mi from the city center, is the airport you fly out of when you book flights from Montrose to Illinois.

  • What are the cheapest airlines to fly from Montrose to Illinois one-way?

    To fly one-way, consider booking your trip with American Airlines, which is currently one of the cheapest options available, starting at $119. United Airlines flights start at $124 while deals on Southwest start at $175 one-way.

  • What are the most popular routes from Montrose to Illinois?

    Most travelers choose Montrose County - Chicago O'Hare Intl, Montrose County - Chicago Midway or Montrose County - Lambert-St Louis when deciding on the best route from Montrose to Illinois.

  • What are the cheapest flights from Montrose to Illinois?

    On average you can expect to pay $434 for a flight from Montrose to Illinois. The cheapest flight overall is $165 while the most popular route, (Montrose County - Chicago O'Hare Intl) is currently priced at $249.

  • Can I find deals for flights from Montrose to Illinois that include hotel bookings?

    Yes. In addition to deals on Montrose to Illinois flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Montrose to Illinois?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Montrose to Illinois.

  • Can I find deals for business class flights from Montrose to Illinois?

    Yes. Cheapflights offers flight deals from Montrose to Illinois 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 Illinois?

    Currently, August is the cheapest month in which you can book a flight from Montrose to Illinois (average of $245). Flying from Montrose to Illinois in March is currently the most expensive (average of $321). 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

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Alternative routes for Montrose to Illinois

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Top 2 airlines flying from Montrose to Illinois

Discover the top 2 airlines that operate flights from Montrose to Illinois. 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 July 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$288Average$373FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$299Average$441FlexibilityNo cancel feeOn-time69%

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