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$305+ 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 5/9. Fares are subject to change and may not be available on all flights or dates of travel.
BTM — ORD
Feb 28 — Mar 71
Sat 2/28
Sat 3/7
1 adult, Economy
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Cheap 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 January 29, 2026.

This Delta deal was found by Cheapflights users on 1/28. 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.
Wed 2/46:10 pm
BTM
-
ORD
2 stops13h 32m
Delta
Sun 2/85:30 am
ORD
-
BTM
2 stops12h 41m
Delta
Deal found 1/28$450
This United Airlines deal was found by Cheapflights users on 1/26. 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 2/119:14 am
BTM
-
ORD
1 stop8h 32m
United Airlines
Sun 2/154:05 pm
ORD
-
BTM
1 stop7h 21m
United Airlines
Deal found 1/26$455
This United Airlines deal was found by Cheapflights users on 1/28. 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 2/2410:00 am
BTM
-
ORD
1 stop7h 55m
United Airlines
Sat 2/288:07 pm
ORD
-
BTM
1 stop27h 19m
United Airlines
Deal found 1/28$466
This United Airlines deal was found by Cheapflights users on 1/28. 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 2/49:14 am
BTM
-
STL
1 stop6h 41m
United Airlines
Sat 2/74:15 pm
STL
-
BTM
1 stop7h 30m
United Airlines
Deal found 1/28$484
This United Airlines deal was found by Cheapflights users on 1/28. 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 2/49:14 am
BTM
-
ORD
1 stop8h 32m
United Airlines
Tue 2/103:59 pm
ORD
-
BTM
1 stop7h 46m
United Airlines
Deal found 1/28$484
This Delta deal was found by Cheapflights users on 1/26. 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.
Wed 2/116:10 pm
BTM
-
ORD
2 stops13h 28m
Delta
Sun 2/156:15 am
ORD
-
BTM
2 stops11h 54m
Delta
Deal found 1/26$500
This United Airlines deal was found by Cheapflights users on 1/28. 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 3/2010:00 am
BTM
-
ORD
1 stop22h 38m
United Airlines
Tue 3/247:00 am
ORD
-
BTM
1 stop16h 26m
United Airlines
Deal found 1/28$505
This United Airlines deal was found by Cheapflights users on 1/27. 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 1/289:14 am
BTM
-
MLI
2 stops11h 22m
United Airlines
Sat 1/3110:47 am
MLI
-
BTM
2 stops12h 58m
United Airlines
Deal found 1/27$509
This United Airlines deal was found by Cheapflights users on 1/28. 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 2/39:14 am
BTM
-
ORD
1 stop8h 32m
United Airlines
Tue 2/103:59 pm
ORD
-
BTM
1 stop7h 46m
United Airlines
Deal found 1/28$514
This Delta deal was found by Cheapflights users on 1/28. 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.
Wed 2/46:10 pm
BTM
-
MDW
2 stops14h 43m
Delta
Tue 2/109:33 am
MDW
-
BTM
2 stops8h 38m
Delta
Deal found 1/28$535
This Delta deal was found by Cheapflights users on 1/28. 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.
Tue 2/36:10 pm
BTM
-
MDW
2 stops14h 43m
Delta
Tue 2/109:33 am
MDW
-
BTM
2 stops8h 38m
Delta
Deal found 1/28$599
This Delta deal was found by Cheapflights users on 1/28. 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 2/56:10 pm
BTM
-
MDW
2 stops14h 43m
Delta
Tue 2/109:33 am
MDW
-
BTM
2 stops8h 38m
Delta
Deal found 1/28$695

Find flight deals from Butte to Illinois

Keep the following information in mind while searching for Butte to Illinois flight deals. Data was last updated January 29, 2026.

Round-trip from

$455
(United Airlines)

One-way from

$305
(United Airlines)
From Butte Silver Bow Co to Illinois
Search Deals
One-way flight from Butte Silver Bow Co to Illinois
Search Deals

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 January 29, 2026.
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 2/11

9:14 am-6:46 pm

1 stop8h 32m

Chicago O'Hare Intl

Sun 2/15

4:05 pm-10:26 pm

1 stop7h 21m

$455

ButteChicago

BTM - ORD

BTMORD

Butte Silver Bow Co

Tue 2/24

10:00 am-6:55 pm

1 stop7h 55m

Chicago O'Hare Intl

Sat 2/28

8:07 pm-10:26 pm

1 stop27h 19m

$466

ButteChicago

BTM - ORD

BTMORD

Butte Silver Bow Co

Wed 2/11

6:10 pm-8:38 am

2 stops13h 28m

Chicago O'Hare Intl

Sun 2/15

6:15 am-5:09 pm

2 stops11h 54m

$500

ButteChicago

BTM - ORD

BTMORD

Butte Silver Bow Co

Fri 3/20

10:00 am-9:38 am

1 stop22h 38m

Chicago O'Hare Intl

Tue 3/24

7:00 am-10:26 pm

1 stop16h 26m

$505

ButteChicago

BTM - ORD

BTMORD

Butte Silver Bow Co

Wed 6/17

10:00 am-10:44 pm

1 stop11h 44m

Chicago O'Hare Intl

Mon 6/22

9:39 pm-10:27 pm

1 stop25h 48m

$528

ButteChicago

BTM - MDW

BTMMDW

Butte Silver Bow Co

Wed 2/11

6:10 pm-9:54 am

2 stops14h 44m

Chicago Midway

Sun 2/15

6:00 am-5:09 pm

2 stops12h 09m

$950

ButteChicago

BTM - MDW

BTMMDW

Butte Silver Bow Co

Thu 2/12

6:10 pm-9:54 am

2 stops14h 44m

Chicago Midway

Mon 2/16

9:34 am-5:09 pm

2 stops8h 35m

$1,070

ButteChicago

BTM - MDW

BTMMDW

Butte Silver Bow Co

Fri 3/20

6:10 pm-9:56 am

2 stops14h 46m

Chicago Midway

Tue 3/24

6:00 am-5:08 pm

2 stops12h 08m

$1,426

ButteChicago

BTM - MDW

BTMMDW

Butte Silver Bow Co

Wed 6/17

6:10 pm-9:51 am

2 stops14h 41m

Chicago Midway

Mon 6/22

6:00 am-4:55 pm

2 stops11h 55m

$1,825

ButteChicago

BTM - ORD

BTMORD

Butte Silver Bow Co

Sat 5/9

3:15 pm-9:58 pm

1 stop5h 43m

$305

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/28

Showing 1-10 of 29 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, 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 November is currently the most expensive (average of $298). 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 8h 32m. Your travel time can differ by up to 6h 12m. 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 - Lambert-St Louis.

  • 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 November is currently the most expensive (average of $298). 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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