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$165+ 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 11/12. Fares are subject to change and may not be available on all flights or dates of travel.
MTJ — ORD
Nov 29 — Dec 61
Sat 11/29
Sat 12/6
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 October 30, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$356
(United Airlines)

One-way from

$165
(United Airlines)

Popular in

October

Cheapest in

September

Average price

$635

Good one-way deal

$283 or less
Provider with most accurate pricing for Montrose County-Chicago (CHI) flight deals.
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Provider most trusted by Cheapflights users for Montrose County-Chicago (CHI) flights.
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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. 12% potential increase in price ($60 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($18 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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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 October 30, 2025.

This United Airlines deal was found by Cheapflights users on 10/30. 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.
Sat 11/151:30 pmMTJ - PIA
1 stop6h 26mUnited Airlines
Wed 11/198:43 amPIA - MTJ
1 stop4h 46mUnited Airlines
Deal found 10/30$281
This American Airlines deal was found by Cheapflights users on 10/27. 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 10/307:30 amMTJ - ORD
1 stop6h 36mAmerican Airlines
Fri 10/3112:03 pmORD - MTJ
1 stop7h 04mAmerican Airlines
Deal found 10/27$319
This United Airlines deal was found by Cheapflights users on 10/28. 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 11/121:30 pmMTJ - ORD
1 stop5h 10mUnited Airlines
Sun 11/167:10 amORD - MTJ
1 stop6h 19mUnited Airlines
Deal found 10/28$359
This United Airlines deal was found by Cheapflights users on 10/30. 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.
Fri 12/1912:25 pmMTJ - ORD
Nonstop3h 09mUnited Airlines
Thu 12/258:50 amORD - MTJ
Nonstop3h 49mUnited Airlines
Deal found 10/30$369
This United Airlines deal was found by Cheapflights users on 10/30. 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.
Sat 12/201:34 pmMTJ - ORD
1 stop6h 45mUnited Airlines
Thu 12/258:50 amORD - MTJ
Nonstop3h 49mUnited Airlines
Deal found 10/30$379
This American Airlines deal was found by Cheapflights users on 10/28. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/27:00 amMTJ - ORD
1 stop5h 41mAmerican Airlines
Tue 11/41:23 pmORD - MTJ
1 stop6h 56mAmerican Airlines
Deal found 10/28$419
This Southwest deal was found by Cheapflights users on 10/28. 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.
Sun 11/211:50 amMTJ - MDW
1 stop4h 35mSouthwest
Tue 11/47:05 amMDW - MTJ
1 stop5h 15mSouthwest
Deal found 10/28$429
This American Airlines deal was found by Cheapflights users on 10/28. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/202:43 pmMTJ - ORD
1 stop6h 37mAmerican Airlines
Thu 12/255:21 amORD - MTJ
1 stop7h 19mAmerican Airlines
Deal found 10/28$433
This American Airlines deal was found by Cheapflights users on 10/30. 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.
Fri 12/192:43 pmMTJ - ORD
1 stop6h 37mAmerican Airlines
Thu 12/255:21 amORD - MTJ
1 stop7h 19mAmerican Airlines
Deal found 10/30$480
This Southwest deal was found by Cheapflights users on 10/30. 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.
Sun 11/2311:50 amMTJ - STL
1 stop4h 00mSouthwest
Fri 11/285:30 amSTL - MTJ
1 stop6h 35mSouthwest
Deal found 10/30$496
This Southwest deal was found by Cheapflights users on 10/30. 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.
Sat 11/2212:10 pmMTJ - STL
1 stop10h 40mSouthwest
Tue 11/258:30 amSTL - MTJ
1 stop4h 00mSouthwest
Deal found 10/30$510
This Southwest deal was found by Cheapflights users on 10/29. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/2612:15 pmMTJ - STL
1 stop4h 35mSouthwest
Wed 11/2610:45 pmSTL - MTJ
2 stops11h 55mSouthwest
Deal found 10/29$561

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 October 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

MontrosePeoria

MTJ - PIA

MTJPIA

Montrose County

Sat 11/15

1:30 pm-8:56 pm

1 stop6h 26m

Greater Peoria

Wed 11/19

8:43 am-12:29 pm

1 stop4h 46m

$281

MontroseSt. Louis

MTJ - STL

MTJSTL

Montrose County

Tue 4/7

1:35 pm-8:59 pm

1 stop6h 24m

Lambert-St Louis

Wed 4/8

1:30 pm-8:08 pm

1 stop7h 38m

$350

MontroseChicago

MTJ - ORD

MTJORD

Montrose County

Fri 12/19

12:25 pm-4:34 pm

Nonstop3h 09m

Chicago O'Hare Intl

Thu 12/25

8:50 am-11:39 am

Nonstop3h 49m

$369

MontroseChicago

MTJ - ORD

MTJORD

Montrose County

Sat 12/20

12:25 pm-4:34 pm

Nonstop3h 09m

Chicago O'Hare Intl

Thu 12/25

8:50 am-11:39 am

Nonstop3h 49m

$369

MontroseChicago

MTJ - ORD

MTJORD

Montrose County

Thu 4/16

1:35 pm-9:13 pm

1 stop6h 38m

Chicago O'Hare Intl

Mon 4/20

5:15 am-8:08 pm

1 stop15h 53m

$436

MontroseChicago

MTJ - ORD

MTJORD

Montrose County

Wed 11/12

7:15 am-6:31 pm

2 stops10h 16m

Chicago O'Hare Intl

Sun 11/16

7:10 am-12:29 pm

1 stop6h 19m

$466

MontroseChicago

MTJ - ORD

MTJORD

Montrose County

Fri 12/19

2:43 pm-10:20 pm

1 stop6h 37m

Chicago O'Hare Intl

Thu 12/25

5:21 am-11:40 am

1 stop7h 19m

$480

MontroseSt. Louis

MTJ - STL

MTJSTL

Montrose County

Sun 11/23

11:50 am-4:50 pm

1 stop4h 00m

Lambert-St Louis

Fri 11/28

5:30 am-11:05 am

1 stop6h 35m

$496

MontroseSt. Louis

MTJ - STL

MTJSTL

Montrose County

Sat 11/22

12:10 pm-11:50 pm

1 stop10h 40m

Lambert-St Louis

Tue 11/25

8:30 am-11:30 am

1 stop4h 00m

$510

MontrosePeoria

MTJ - PIA

MTJPIA

Montrose County

Wed 3/25

12:45 pm-9:01 pm

1 stop7h 16m

Greater Peoria

Sat 3/28

5:30 pm-12:41 pm

2 stops20h 11m

$519

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/29

Showing 1-10 of 27 results
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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 $183). Flying from Montrose to Illinois in April is currently the most expensive (average of $401). 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.

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 October 30, 2025.
Get a feel of what it's like to fly with Southwest and United 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
4,242 reviews

Food

7.0

Boarding

8.1

Comfort

8.0

Overall

8.0

Entertainment

7.5

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Southwest
8.0
Very good
4,242 reviews
Southwest
8.0
Very good
4,242 reviews

Food

7.0

Boarding

8.1

Comfort

8.0

Overall

8.0

Entertainment

7.5

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
United Airlines
7.4
Good
8,998 reviews
Southwest
8.0
Very good
4,242 reviews

Food

7.0

Boarding

8.1

Comfort

8.0

Overall

8.0

Entertainment

7.5

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

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.

  • How long is the flight from Montrose to Illinois?

    United Airlines, American Airlines, and Delta can get you from Montrose to Illinois in just under 6h 14m. Your travel time can differ by up to 3h 07m. Montrose and Illinois are separated by a distance of 1085 mi. This flight may include one or multiple stops.

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

    To fly one-way, consider booking your trip with United Airlines, which is currently one of the cheapest options available, starting at $165. Southwest flights start at $285 while deals on Delta start at $530 one-way.

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

    Most travelers choose Montrose County - Chicago O'Hare Intl, Montrose County - Lambert-St Louis or Montrose County - Chicago Midway 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 $303 for a flight from Montrose to Illinois. The cheapest flight overall is $283 while the most popular route, (Montrose County - Chicago O'Hare Intl) is currently priced at $429.

  • 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 $183). Flying from Montrose to Illinois in April is currently the most expensive (average of $401). 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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Top airline flying from Montrose to Illinois

Discover the top airline 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 October 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$299Average$442FlexibilityNo cancel feeOn-time69%

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