$89+ Cheap flights from Montana to O'Hare Intl (ORD)
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 9/5. Fares are subject to change and may not be available on all flights or dates of travel.
Find cheap flights from Montana to O'Hare Intl 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 O'Hare Intl
Keep the following information in mind while searching for Montana to O'Hare Intl flight deals. Data was last updated June 13, 2025.
Round-trip from | $191 (American Airlines) |
|---|---|
One-way from | $89 (Kiwi.com) |
Popular in | November |
Cheapest in | January |
Average price | $351 |
Good round-trip deal | $313 or less |
Good one-way deal | $181 or less |
Find flight deals from Montana to O'Hare Intl
Cheapest flights from Montana to O'Hare IntlExplore the most affordable flight options available from Montana to O'Hare Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 13, 2025.
Explore the most affordable flight options available from Montana to O'Hare Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 13, 2025.
This American Airlines deal was found by Cheapflights users on 6/12. 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.
This Hawaiian Airlines deal was found by Cheapflights users on 6/11. 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 Hawaiian 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 6/11. 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 American Airlines deal was found by Cheapflights users on 6/13. 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.
This United Airlines deal was found by Cheapflights users on 6/12. 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 Mytrip deal was found by Cheapflights users on 6/10. 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 Mytrip 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 6/12. 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 American Airlines deal was found by Cheapflights users on 6/13. 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.
This United Airlines deal was found by Cheapflights users on 6/12. 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 6/12. 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 Mytrip deal was found by Cheapflights users on 6/12. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This American Airlines deal was found by Cheapflights users on 6/12. 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.
Cheapflights Fare Finder
Customize your flight search to find flights from Montana to O'Hare Intl 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 June 13, 2025.
Use the filters below to find and compare flights from Montana to Chicago O'Hare Intl Airport that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
BillingsChicago
BIL - ORD
BILORD
Billings Logan Intl
Thu 8/14
5:49 am-9:39 am
Nonstop2h 50m
Chicago O'Hare Intl
Mon 8/18
9:45 am-11:49 am
Nonstop3h 04m
BillingsChicago
BIL - ORD
BILORD
Billings Logan Intl
Fri 7/25
10:26 pm-6:44 pm
1 stop19h 18m
Chicago O'Hare Intl
Mon 7/28
7:08 am-9:36 pm
1 stop15h 28m
BillingsChicago
BIL - ORD
BILORD
Billings Logan Intl
Fri 7/4
12:50 pm-4:45 pm
Nonstop2h 55m
Chicago O'Hare Intl
Sun 7/6
5:00 am-9:38 am
1 stop5h 38m
KalispellChicago
FCA - ORD
FCAORD
Kalispell Glacier Park
Fri 9/19
3:49 pm-11:59 pm
1 stop7h 10m
Chicago O'Hare Intl
Sun 9/21
9:46 am-12:38 pm
Nonstop3h 52m
MissoulaChicago
MSO - ORD
MSOORD
Missoula Johnson-Bell Field
Wed 7/2
12:40 pm-5:04 pm
Nonstop3h 24m
Chicago O'Hare Intl
Tue 7/8
5:00 am-9:56 am
1 stop5h 56m
BillingsChicago
BIL - ORD
BILORD
Billings Logan Intl
Fri 7/4
5:20 am-11:52 am
1 stop5h 32m
Chicago O'Hare Intl
Tue 7/8
2:00 pm-11:10 pm
2 stops10h 10m
BozemanChicago
BZN - ORD
BZNORD
Bozeman Gallatin Field
Thu 7/10
2:36 pm-2:13 pm
1 stop22h 37m
Chicago O'Hare Intl
Thu 7/17
7:08 am-1:46 pm
1 stop7h 38m
BozemanChicago
BZN - ORD
BZNORD
Bozeman Gallatin Field
Thu 9/11
7:23 pm-7:03 am
1 stop10h 40m
Chicago O'Hare Intl
Sun 9/14
6:20 am-2:14 pm
1 stop8h 54m
BozemanChicago
BZN - ORD
BZNORD
Bozeman Gallatin Field
Fri 8/29
1:33 pm-5:43 pm
Nonstop3h 10m
Chicago O'Hare Intl
Sun 8/31
10:25 am-12:39 pm
Nonstop3h 14m
MissoulaChicago
MSO - ORD
MSOORD
Missoula Johnson-Bell Field
Wed 7/2
12:54 pm-5:16 pm
Nonstop3h 22m
Chicago O'Hare Intl
Tue 7/8
8:34 pm-11:29 pm
Nonstop3h 55m
Best time to book a flight from Montana to O'Hare Intl
Have a flexible travel schedule? Discover the best time to fly to O'Hare Intl from Montana with our price prediction graph.
Cheapflights Insights
Everything you need to know about your flight from Montana to Chicago O'Hare Intl Airport
What is the cheapest month to book a flight from Montana to Chicago O'Hare Intl Airport?
Currently, August is the cheapest month in which you can book a flight from Montana to Chicago O'Hare Intl Airport (average of $245). Flying from Montana to Chicago O'Hare Intl Airport 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 MT to ORD?
Find hourly flight availability from Montana to O'Hare Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 13, 2025.
When flying from Montana to Chicago O'Hare Intl Airport, 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 Chicago O'Hare Intl Airport
Explore weekly flight availability from Montana to O'Hare Intl. 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 June 13, 2025.
The most flights from USMT to ORD are scheduled on a Monday (11 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (6 on average).
Rainfall in O'Hare Intl by month
Plan your trip to O'Hare Intl by taking into account the average rainfall totals by month.
In terms of precipitation, rainfall in Chicago O'Hare Intl Airport 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 Chicago O'Hare Intl Airport when rainfall is around 1.7 in.
Temperature in O'Hare Intl by month
Plan your trip to O'Hare Intl by taking into account the average temperature totals by month.
If weather is an important factor for your trip to Chicago O'Hare Intl Airport, 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 O'Hare Intl
Get insights into the airlines that provide service to O'Hare Intl. 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 O'Hare Intl. Reviews last updated June 13, 2025.
Read reviews from past customers who have flown Alaska Airlines, Southwest and Delta from Montana to Chicago. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
Food
Overall
Comfort
Boarding
Crew
Reviews
James,Apr 2025
LAX - SFO
Entertainment
Food
Overall
Comfort
Boarding
Crew
Reviews
James,Apr 2025
LAX - SFO
Entertainment
Food
Overall
Comfort
Boarding
Crew
Reviews
James,Apr 2025
LAX - SFO
Entertainment
Food
Overall
Comfort
Boarding
Crew
Reviews
James,Apr 2025
LAX - SFO
Entertainment
Food
Overall
Comfort
Boarding
Crew
Reviews
James,Apr 2025
LAX - SFO
Entertainment
Food
Overall
Comfort
Boarding
Crew
Reviews
James,Apr 2025
LAX - SFO
Related info for your journey
Find useful and relevant information for your journey from Montana to O'Hare Intl. 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 O'Hare Intl
See prices for flight routes from nearby airports that may be better suited for you.
Top 5 airlines flying from Montana to O'Hare Intl
Discover the top 5 airlines that operate flights from Montana to O'Hare Intl. 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 June 13, 2025.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$197 | Average$378 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$205 | Average$462 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$216 | Average$423 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$238 | Average$521 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$388 | Average$418 | FlexibilityNo cancel fee | On-time63% |