HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Illinois

$343+ Cheap flights from Butte (BTM) 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 4/9. Fares are subject to change and may not be available on all flights or dates of travel.
BTM — ORD
Mar 31 — Apr 71
Mon 3/31
Mon 4/7
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Butte 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 Butte to Illinois

Keep the following information in mind while searching for Butte to Illinois flight deals. Data was last updated March 26, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$441
(United Airlines)

One-way from

$343
(United Airlines)
Provider with most accurate pricing for Butte Silver Bow Co-Chicago (CHI) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Butte Silver Bow Co-Chicago (CHI) flights.
Search Deals
From Butte Silver Bow Co to Illinois
Search Deals
One-way flight from Butte Silver Bow Co to Illinois
Search Deals

Find flight deals from Butte to Illinois

Cheapest flights from Butte to Illinois
Explore the most affordable flight options available from Butte to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 26, 2025.

This United Airlines deal was found by Cheapflights users on 3/25. 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.
Thu 4/310:15 amBTM - ORD
1 stop5h 45mUnited Airlines
Tue 4/82:35 pmORD - BTM
1 stop8h 55mUnited Airlines
Deal found 3/25$424
This United Airlines deal was found by Cheapflights users on 3/25. 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.
Tue 4/810:15 amBTM - STL
1 stop5h 21mUnited Airlines
Thu 4/104:45 pmSTL - BTM
1 stop6h 45mUnited Airlines
Deal found 3/25$705

Cheapflights Fare Finder

Customize your flight search to find flights from Butte 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 March 26, 2025.
Use the filters below to find and compare flights from Butte to Illinois that are best for you.

Fly from

Butte

Fly to

Illinois

Route

Depart

Return

Price

ButteChicago

BTM - ORD

BTMORD

Butte Silver Bow Co

Thu 8/7

10:25 am-5:05 pm

1 stop5h 40m

Chicago O'Hare Intl

Thu 8/14

2:35 pm-10:32 pm

1 stop8h 57m

$441

ButteSt. Louis

BTM - STL

BTMSTL

Butte Silver Bow Co

Tue 4/8

10:15 am-4:36 pm

1 stop5h 21m

Lambert-St Louis

Thu 4/10

4:45 pm-10:30 pm

1 stop6h 45m

$705

ButteChicago

BTM - ORD

BTMORD

Butte Silver Bow Co

Wed 4/9

10:15 am-9:20 pm

1 stop10h 05m

$343

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/25

Best time to book a flight from Butte to Illinois

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

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

Currently, August is the cheapest month in which you can book a flight from Butte to Illinois (average of $245). Flying from Butte to Illinois in March is currently the most expensive (average of $323). 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.

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 March 26, 2025.
United Airlines
7.4
Good
8,608 reviews

Comfort

7.3

Food

6.6

Overall

7.4

Entertainment

7.0

Boarding

7.7

Crew

8.1

Reviews

1 / 20
2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!
United Airlines
7.4
Good
8,608 reviews
United Airlines
7.4
Good
8,608 reviews

Comfort

7.3

Food

6.6

Overall

7.4

Entertainment

7.0

Boarding

7.7

Crew

8.1

Reviews

1 / 20
2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!

Related info for your journey

Find useful and relevant information for your journey from Butte 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 Butte to Illinois?

    Most people fly from Butte Silver Bow Co (BTM) if they book a flight from Butte to Illinois. Butte Silver Bow Co is conveniently located just 3.8 mi from Butte’s city center.

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

    The most popular route from Butte to Illinois is Butte Silver Bow Co - Chicago O'Hare Intl. You may also consider Butte Silver Bow Co - Moline Quad-City or Butte Silver Bow Co - Chicago Midway.

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

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

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

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

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

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

    Currently, August is the cheapest month in which you can book a flight from Butte to Illinois (average of $245). Flying from Butte to Illinois in March is currently the most expensive (average of $323). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Butte to Illinois

See prices for flight routes from nearby airports that may be better suited for you.
Bozeman to Seattle flights
Bozeman to Denver flights
Billings to Seattle flights
Bozeman to San Francisco flights
Bozeman to Los Angeles flights
Bozeman to Sky Harbor Intl flights
Bozeman to Hobby flights
Bozeman to Minneapolis flights
Bozeman to John F Kennedy Intl flights
Missoula to Denver flights
Bozeman to O'Hare Intl flights
Bozeman to Las Vegas flights
Kalispell to O'Hare Intl flights
Great Falls to Seattle flights
Billings to Dallas/Fort Worth flights
Missoula to O'Hare Intl flights
Bozeman to Boston flights
Bozeman to Philadelphia flights
Missoula to Minneapolis flights
Bozeman to Newark flights
Billings to Dulles Intl flights
Bozeman to LaGuardia flights
Missoula to Seattle flights
Bozeman to Atlanta flights
Billings to Las Vegas flights
Billings to Portland flights
Billings to Minneapolis flights
Billings to Baltimore flights
Missoula to San Francisco flights
Bozeman to George Bush Intcntl flights
Bozeman to Dallas/Fort Worth flights
Kalispell to Minneapolis flights
Billings to O'Hare Intl flights
Missoula to Portland flights
Kalispell to Seattle flights
Billings to Sky Harbor Intl flights
Bozeman to San Diego flights
Missoula to Las Vegas flights
Bozeman to Portland flights
Missoula to Hobby flights
Helena to Seattle flights
Bozeman to Dulles Intl flights
Missoula to John F Kennedy Intl flights
Kalispell to Dallas/Fort Worth flights
Billings to Reagan-National flights
Kalispell to Portland flights
Bozeman to Nashville flights
Bozeman to Midway flights
Missoula to LaGuardia flights
Billings to Denver flights
100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.