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$335+ 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 11/1. Fares are subject to change and may not be available on all flights or dates of travel.
BTM — ORD
Oct 16 — Oct 231
Thu 10/16
Thu 10/23
1 adult, Economy
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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 September 16, 2025.

Round-trip from

$402
(United Airlines)

One-way from

$335
(United Airlines)
From Butte Silver Bow Co to Illinois
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One-way flight from Butte Silver Bow Co to Illinois
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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 September 16, 2025.

This United Airlines deal was found by Cheapflights users on 9/15. 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 10/159:47 amBTM - ORD
1 stop11h 52mUnited Airlines
Tue 10/212:53 pmORD - BTM
1 stop8h 28mUnited Airlines
Deal found 9/15$402
This United Airlines deal was found by Cheapflights users on 9/13. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/189:47 amBTM - ORD
1 stop7h 38mUnited Airlines
Tue 10/212:53 pmORD - BTM
1 stop8h 28mUnited Airlines
Deal found 9/13$425
This United Airlines deal was found by Cheapflights users on 9/15. 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 12/1310:00 amBTM - ORD
1 stop7h 55mUnited Airlines
Sat 1/108:02 pmORD - BTM
1 stop27h 43mUnited Airlines
Deal found 9/15$427
This United Airlines deal was found by Cheapflights users on 9/15. 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 12/1310:00 amBTM - ORD
1 stop7h 55mUnited Airlines
Thu 1/88:50 amORD - BTM
2 stops14h 55mUnited Airlines
Deal found 9/15$442
This United Airlines deal was found by Cheapflights users on 9/13. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/149:47 amBTM - ORD
1 stop9h 38mUnited Airlines
Tue 10/212:53 pmORD - BTM
1 stop8h 28mUnited Airlines
Deal found 9/13$447
This United Airlines deal was found by Cheapflights users on 9/15. 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 12/1310:00 amBTM - ORD
1 stop7h 55mUnited Airlines
Fri 1/93:59 pmORD - BTM
1 stop7h 46mUnited Airlines
Deal found 9/15$448
This United Airlines deal was found by Cheapflights users on 9/15. 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
1 stop22h 40mUnited Airlines
Thu 1/81:55 pmORD - BTM
1 stop9h 50mUnited Airlines
Deal found 9/15$460
This United Airlines deal was found by Cheapflights users on 9/15. 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 12/1310:00 amBTM - ORD
1 stop7h 55mUnited Airlines
Sun 1/117:00 amORD - BTM
1 stop16h 45mUnited Airlines
Deal found 9/15$461
This United Airlines deal was found by Cheapflights users on 9/15. 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
1 stop22h 40mUnited Airlines
Sat 1/109:00 amORD - BTM
2 stops14h 45mUnited Airlines
Deal found 9/15$465
This United Airlines deal was found by Cheapflights users on 9/13. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/169:47 amBTM - ORD
1 stop13h 12mUnited Airlines
Tue 10/212:53 pmORD - BTM
1 stop8h 28mUnited Airlines
Deal found 9/13$467
This Delta deal was found by Cheapflights users on 9/15. 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.
Fri 12/126:10 pmBTM - MDW
2 stops28h 22mDelta
Sat 1/109:30 amMDW - BTM
2 stops8h 35mDelta
Deal found 9/15$509
This United Airlines deal was found by Cheapflights users on 9/14. 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 9/169:45 amBTM - STL
1 stop5h 48mUnited Airlines
Sat 9/204:50 pmSTL - BTM
1 stop6h 31mUnited Airlines
Deal found 9/14$514

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 September 16, 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

Wed 10/15

9:47 am-10:39 pm

1 stop11h 52m

Chicago O'Hare Intl

Tue 10/21

2:53 pm-10:21 pm

1 stop8h 28m

$402

ButteChicago

BTM - ORD

BTMORD

Butte Silver Bow Co

Sat 10/18

9:47 am-6:25 pm

1 stop7h 38m

Chicago O'Hare Intl

Tue 10/21

2:53 pm-10:21 pm

1 stop8h 28m

$425

ButteChicago

BTM - ORD

BTMORD

Butte Silver Bow Co

Sat 12/13

10:00 am-6:55 pm

1 stop7h 55m

Chicago O'Hare Intl

Wed 1/7

8:50 am-10:45 pm

2 stops14h 55m

$442

ButteChicago

BTM - ORD

BTMORD

Butte Silver Bow Co

Wed 10/15

9:47 am-11:59 pm

1 stop13h 12m

Chicago O'Hare Intl

Sun 10/19

5:01 am-10:21 pm

1 stop18h 20m

$480

ButteChicago

BTM - ORD

BTMORD

Butte Silver Bow Co

Sat 12/13

10:00 am-6:55 pm

1 stop7h 55m

Chicago O'Hare Intl

Sun 1/11

9:25 am-10:45 pm

2 stops14h 20m

$483

ButteChicago

BTM - ORD

BTMORD

Butte Silver Bow Co

Sat 12/13

10:00 am-9:41 am

2 stops22h 41m

Chicago O'Hare Intl

Sat 1/10

9:00 am-10:45 pm

2 stops14h 45m

$489

ButteChicago

BTM - MDW

BTMMDW

Butte Silver Bow Co

Sat 12/13

6:10 pm-9:54 am

2 stops14h 44m

Chicago Midway

Sat 1/10

9:30 am-5:05 pm

2 stops8h 35m

$509

ButteChicago

BTM - MDW

BTMMDW

Butte Silver Bow Co

Fri 12/12

6:10 pm-11:32 pm

2 stops28h 22m

Chicago Midway

Sat 1/10

9:30 am-5:05 pm

2 stops8h 35m

$509

ButteChicago

BTM - MDW

BTMMDW

Butte Silver Bow Co

Sun 12/14

6:10 pm-11:32 pm

2 stops28h 22m

Chicago Midway

Sat 1/10

9:30 am-5:05 pm

2 stops8h 35m

$509

ButteChicago

BTM - MDW

BTMMDW

Butte Silver Bow Co

Fri 12/12

6:10 pm-11:32 pm

2 stops28h 22m

Chicago Midway

Fri 1/9

9:30 am-5:05 pm

2 stops8h 35m

$534

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/15

Showing 1-10 of 19 results
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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 $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.

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 11h 52m. Your travel time can differ by up to 2h 52m. 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 - Chicago Midway or Butte Silver Bow Co - Moline Quad-City.

  • 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 $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.

See more FAQs

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