$124+ Cheap flights from Montana 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 2/18. Fares are subject to change and may not be available on all flights or dates of travel.
Find cheap flights from Montana to Illinois with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Montana to Illinois
Discover tips and strategies to find the most affordable flight options for your journey from Montana (USMT) to Illinois (USIL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated January 21, 2025.
Round-trip from | $269 (Alaska Airlines) |
|---|---|
One-way from | $124 (Alaska Airlines) |
Good round-trip deal | $411 or less |
Good one-way deal | $223 or less |
Find flight deals from Montana to Illinois
Cheapest flights from Montana to IllinoisExplore the most affordable flight options available from Montana to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 21, 2025.
Explore the most affordable flight options available from Montana to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 21, 2025.
This Alaska Airlines deal was found by Cheapflights users on 1/20. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Alaska Airlines deal was found by Cheapflights users on 1/20. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Delta deal was found by Cheapflights users on 1/20. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This United Airlines deal was found by Cheapflights users on 1/20. 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.
This Delta deal was found by Cheapflights users on 1/20. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Southwest deal was found by Cheapflights users on 1/20. 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.
This Delta deal was found by Cheapflights users on 1/19. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This United Airlines deal was found by Cheapflights users on 1/21. 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.
This Delta deal was found by Cheapflights users on 1/20. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Delta deal was found by Cheapflights users on 1/20. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Delta deal was found by Cheapflights users on 1/20. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Delta deal was found by Cheapflights users on 1/21. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Find flights from Montana to Illinois within your budget
Customize your flight search to find flights from Montana 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 January 21, 2025.
Fly from
Fly to
Route
Depart
Return
Price
BozemanChicago
BZN - ORD
BZNORD
Bozeman Gallatin Field
Tue 2/25
2:53 pm-11:59 pm
1 stop8h 06m
Chicago O'Hare Intl
Wed 2/26
7:45 am-2:09 pm
1 stop7h 24m
MissoulaChicago
MSO - MDW
MSOMDW
Missoula Johnson-Bell Field
Tue 4/1
7:30 am-2:15 pm
1 stop5h 45m
Chicago Midway
Wed 4/23
1:16 pm-8:17 pm
1 stop8h 01m
BozemanChicago
BZN - ORD
BZNORD
Bozeman Gallatin Field
Thu 2/13
12:50 pm-4:48 pm
Nonstop2h 58m
Chicago O'Hare Intl
Mon 2/17
9:15 am-11:46 am
Nonstop3h 31m
MissoulaChicago
MSO - ORD
MSOORD
Missoula Johnson-Bell Field
Mon 3/3
6:38 pm-5:53 am
1 stop10h 15m
Chicago O'Hare Intl
Mon 3/10
7:00 pm-1:40 pm
2 stops19h 40m
BozemanChicago
BZN - ORD
BZNORD
Bozeman Gallatin Field
Thu 4/3
1:18 pm-9:45 pm
1 stop7h 27m
Chicago O'Hare Intl
Tue 4/8
6:15 am-12:51 pm
1 stop7h 36m
BozemanChicago
BZN - MDW
BZNMDW
Bozeman Gallatin Field
Tue 2/25
5:05 am-12:00 pm
1 stop5h 55m
Chicago Midway
Wed 2/26
6:20 am-12:00 pm
1 stop6h 40m
BozemanChicago
BZN - MDW
BZNMDW
Bozeman Gallatin Field
Wed 3/26
6:00 am-2:15 pm
1 stop7h 15m
Chicago Midway
Sat 3/29
1:12 pm-11:04 pm
2 stops10h 52m
MissoulaSt. Louis
MSO - STL
MSOSTL
Missoula Johnson-Bell Field
Wed 3/5
2:35 pm-8:44 pm
1 stop5h 09m
Lambert-St Louis
Wed 3/12
8:20 am-4:01 pm
1 stop8h 41m
KalispellChicago
FCA - ORD
FCAORD
Kalispell Glacier Park
Wed 3/26
5:25 am-12:44 pm
1 stop6h 19m
Chicago O'Hare Intl
Wed 4/9
6:15 am-12:54 pm
1 stop7h 39m
MissoulaChicago
MSO - ORD
MSOORD
Missoula Johnson-Bell Field
Thu 2/13
5:40 am-12:45 pm
1 stop6h 05m
Chicago O'Hare Intl
Mon 2/17
7:18 pm-12:45 am
1 stop6h 27m
Best time to book a flight from Montana to Illinois
Have a flexible travel schedule? Discover the best time to fly to Illinois from Montana with our price prediction graph.
Travel insights for flights from Montana to Illinois
Get recent, data-driven insights about flights from Montana to Illinois including ideal travel times, pricing trends, and more.
What is the cheapest month to book a flight from Montana to Illinois?
Currently, August is the cheapest month in which you can book a flight from Montana to Illinois (average of $245). Flying from Montana to Illinois in March is currently the most expensive (average of $320). 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 MT to IL?
Find hourly flight availability from Montana 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 January 21, 2025.
When flying from Montana to Illinois, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.
Weekly flight availability from Montana to Illinois
Explore weekly flight availability from Montana to Illinois. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated January 21, 2025.
The most flights from USMT to USIL are scheduled on a Monday (6 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (2 on average).
Rainfall in Illinois by month
Plan your trip to Illinois by taking into account the average rainfall totals by month.
In terms of precipitation, rainfall in Illinois ranges from 1.7 - 4.9 inches per month. August is typically the wettest month, when rainfall can reach 4.9 in. January is typically the driest time to visit Illinois when rainfall is around 1.7 in.
Temperature in Illinois by month
Plan your trip to Illinois by taking into account the average temperature totals by month.
If weather is an important factor for your trip to Illinois, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 23.0 F).
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 January 21, 2025.
Peruse reviews from past customers who have flown with Alaska Airlines, United Airlines and Delta from Montana to Illinois to help guide your decision. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
Boarding
Comfort
Overall
Crew
Food
Reviews
We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.
Entertainment
Boarding
Comfort
Overall
Crew
Food
Reviews
We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.
Entertainment
Boarding
Comfort
Overall
Crew
Food
Reviews
We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.
Entertainment
Boarding
Comfort
Overall
Crew
Food
Reviews
We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.
Entertainment
Boarding
Comfort
Overall
Crew
Food
Reviews
We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.
Entertainment
Boarding
Comfort
Overall
Crew
Food
Reviews
We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.
Related info for your journey
Find useful and relevant information for your journey from Montana to Illinois. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for Montana to Illinois
See prices for flight routes from nearby airports that may be better suited for you.
Top 5 airlines flying from Montana to Illinois
Discover the top 5 airlines that operate flights from Montana 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 January 21, 2025.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$226 | Average$450 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$229 | Average$497 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$238 | Average$541 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$257 | Average$392 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$388 | Average$390 | FlexibilityNo cancel fee | On-time63% |