HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Illinois

$287+ 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 1/4. Fares are subject to change and may not be available on all flights or dates of travel.
BTM — ORD
Nov 21 — Nov 281
Fri 11/21
Fri 11/28
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 October 22, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$344
(United Airlines)

One-way from

$287
(Delta)
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 October 22, 2025.

This United Airlines deal was found by Cheapflights users on 10/21. 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.
Fri 12/510:00 amBTM - ORD
1 stop7h 55mUnited Airlines
Sat 12/62:40 pmORD - BTM
1 stop8h 49mUnited Airlines
Deal found 10/21$344
This United Airlines deal was found by Cheapflights users on 10/22. 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 12/1610:00 amBTM - ORD
1 stop7h 55mUnited Airlines
Wed 12/242:31 pmORD - BTM
1 stop26h 26mUnited Airlines
Deal found 10/22$407
This United Airlines deal was found by Cheapflights users on 10/22. 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 12/1610:00 amBTM - ORD
1 stop7h 55mUnited Airlines
Sat 12/209:40 pmORD - BTM
1 stop25h 49mUnited Airlines
Deal found 10/22$436
This United Airlines deal was found by Cheapflights users on 10/20. 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.
Thu 12/1110:00 amBTM - STL
1 stop5h 28mUnited Airlines
Sun 12/149:00 amSTL - BTM
1 stop14h 29mUnited Airlines
Deal found 10/20$442
This United Airlines deal was found by Cheapflights users on 10/22. 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.
Mon 12/1510:00 amBTM - ORD
1 stop22h 40mUnited Airlines
Wed 12/242:31 pmORD - BTM
1 stop26h 26mUnited Airlines
Deal found 10/22$457
This United Airlines deal was found by Cheapflights users on 10/21. 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.
Wed 12/249:44 amBTM - ORD
1 stop8h 11mUnited Airlines
Sat 12/278:08 pmORD - BTM
1 stop27h 21mUnited Airlines
Deal found 10/21$472
This KAYAK deal was found by Cheapflights users on 10/22. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/86:10 pmBTM - ORD
1 stop26h 11mDelta
Thu 12/117:40 pmORD - BTM
1 stop22h 30mDelta
Deal found 10/22$477
This United Airlines deal was found by Cheapflights users on 10/22. 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.
Mon 12/1510:00 amBTM - ORD
1 stop22h 40mUnited Airlines
Sat 12/209:40 pmORD - BTM
1 stop25h 49mUnited Airlines
Deal found 10/22$486
This United Airlines deal was found by Cheapflights users on 10/22. 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 12/1610:00 amBTM - ORD
1 stop7h 55mUnited Airlines
Tue 12/239:40 pmORD - BTM
1 stop25h 49mUnited Airlines
Deal found 10/22$488
This United Airlines deal was found by Cheapflights users on 10/22. 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.
Sun 12/1410:00 amBTM - ORD
2 stops22h 45mUnited Airlines
Wed 12/242:31 pmORD - BTM
1 stop26h 26mUnited Airlines
Deal found 10/22$489
This United Airlines deal was found by Cheapflights users on 10/22. 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 12/1610:00 amBTM - ORD
1 stop7h 55mUnited Airlines
Thu 12/257:10 amORD - BTM
1 stop9h 47mUnited Airlines
Deal found 10/22$490
This Delta deal was found by Cheapflights users on 10/20. 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.
Thu 12/116:10 pmBTM - STL
1 stop5h 38mDelta
Sun 12/149:00 amSTL - BTM
2 stops9h 10mDelta
Deal found 10/20$499

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 October 22, 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

Fri 12/5

10:00 am-6:55 pm

1 stop7h 55m

Chicago O'Hare Intl

Sat 12/6

2:40 pm-10:29 pm

1 stop8h 49m

$344

ButteChicago

BTM - ORD

BTMORD

Butte Silver Bow Co

Tue 12/16

10:00 am-6:55 pm

1 stop7h 55m

Chicago O'Hare Intl

Wed 12/24

2:31 pm-3:57 pm

1 stop26h 26m

$407

ButteMoline

BTM - MLI

BTMMLI

Butte Silver Bow Co

Fri 2/20

10:00 am-9:27 pm

2 stops10h 27m

Moline Quad-City

Tue 2/24

8:49 am-10:26 pm

1 stop14h 37m

$433

ButteSt. Louis

BTM - STL

BTMSTL

Butte Silver Bow Co

Thu 12/11

10:00 am-4:28 pm

1 stop5h 28m

Lambert-St Louis

Sun 12/14

9:00 am-10:29 pm

1 stop14h 29m

$442

ButteSt. Louis

BTM - STL

BTMSTL

Butte Silver Bow Co

Sat 4/4

10:00 am-4:26 pm

1 stop5h 26m

Lambert-St Louis

Wed 4/8

8:30 am-10:22 pm

2 stops14h 52m

$453

ButteChicago

BTM - ORD

BTMORD

Butte Silver Bow Co

Mon 12/8

6:10 pm-9:21 pm

1 stop26h 11m

Chicago O'Hare Intl

Thu 12/11

7:40 pm-5:10 pm

1 stop22h 30m

$477

ButteChicago

BTM - ORD

BTMORD

Butte Silver Bow Co

Sun 12/14

10:00 am-11:59 pm

1 stop12h 59m

Chicago O'Hare Intl

Wed 12/24

2:31 pm-3:57 pm

1 stop26h 26m

$477

ButteChicago

BTM - ORD

BTMORD

Butte Silver Bow Co

Tue 12/16

10:00 am-6:55 pm

1 stop7h 55m

Chicago O'Hare Intl

Tue 12/23

9:40 pm-10:29 pm

1 stop25h 49m

$488

ButteChicago

BTM - ORD

BTMORD

Butte Silver Bow Co

Tue 12/16

10:00 am-6:55 pm

1 stop7h 55m

Chicago O'Hare Intl

Sun 12/21

7:10 am-10:29 pm

1 stop16h 19m

$490

ButteChicago

BTM - ORD

BTMORD

Butte Silver Bow Co

Tue 12/16

10:00 am-6:55 pm

1 stop7h 55m

Chicago O'Hare Intl

Mon 12/22

9:40 pm-10:29 pm

1 stop25h 49m

$498

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/22

Showing 1-10 of 25 results
1
2
3

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, October is the cheapest month in which you can book a flight from Butte to Illinois (average of $169). Flying from Butte to Illinois in December is currently the most expensive (average of $312). 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.

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.

  • How long is the flight from Butte to Illinois?

    United Airlines and Delta can get you from Butte to Illinois in just under 7h 55m. Your travel time can differ by up to 6h. There are 1247 mi between Butte and Illinois. This flight may include one or multiple stops.

  • 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 - Lambert-St Louis 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, October is the cheapest month in which you can book a flight from Butte to Illinois (average of $169). Flying from Butte to Illinois in December is currently the most expensive (average of $312). 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 Minneapolis flights
Bozeman to San Francisco flights
Missoula to Seattle flights
Kalispell to Dallas/Fort Worth flights
Bozeman to Las Vegas flights
Bozeman to Dallas/Fort Worth flights
Bozeman to San Diego flights
Bozeman to Los Angeles flights
Great Falls to Seattle flights
Bozeman to Denver flights
Bozeman to Sky Harbor Intl flights
Kalispell to Seattle flights
Bozeman to Newark flights
Missoula to Sky Harbor Intl flights
Missoula to Salt Lake City flights
Great Falls to Las Vegas flights
Bozeman to Orlando flights
Billings to Sky Harbor Intl flights
Missoula to Baltimore flights
Kalispell to Denver flights
Bozeman to O'Hare Intl flights
Missoula to Portland flights
Bozeman to Boise flights
Billings to Las Vegas flights
Billings to Tampa flights
Bozeman to Tampa flights
Bozeman to John F Kennedy Intl flights
Bozeman to Boston flights
Bozeman to Salt Lake City flights
Bozeman to Atlanta flights
Missoula to Denver flights
Bozeman to Kansas City flights
Bozeman to LaGuardia flights
Billings to Denver flights
Missoula to Las Vegas flights
Bozeman to Kahului flights
Great Falls to Denver flights
Helena to Seattle flights
Missoula to Dulles Intl flights
Missoula to Honolulu flights
Bozeman to Baltimore flights
Kalispell to Las Vegas flights
Billings to Los Angeles flights
Missoula to O'Hare Intl flights
Bozeman to Dulles Intl flights
Billings to Boise flights
Billings to Dallas/Fort Worth flights
Missoula to Los Angeles flights
Bozeman to Ontario 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.