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Illinois

$345+ 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 3/21. Fares are subject to change and may not be available on all flights or dates of travel.
BTM — ORD
feb. 19 — feb. 261
jue. 2/19
jue. 2/26
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 enero 20, 2026.

This United Airlines deal was found by Cheapflights users on 1/18. 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.
sáb. 3/710:00 am
BTM
-
ORD
1 stop7h 45m
United Airlines
sáb. 3/144:08 pm
ORD
-
BTM
1 stop7h 18m
United Airlines
Deal found 1/18$365
This United Airlines deal was found by Cheapflights users on 1/19. 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.
jue. 4/3010:10 am
BTM
-
STL
1 stop5h 47m
United Airlines
dom. 5/35:59 pm
STL
-
BTM
1 stop5h 23m
United Airlines
Deal found 1/19$382
This United Airlines deal was found by Cheapflights users on 1/19. 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.
mar. 2/39:14 am
BTM
-
ORD
1 stop6h 50m
United Airlines
sáb. 2/73:59 pm
ORD
-
BTM
1 stop7h 46m
United Airlines
Deal found 1/19$389
This United Airlines deal was found by Cheapflights users on 1/18. 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.
jue. 3/510:00 am
BTM
-
ORD
1 stop7h 45m
United Airlines
sáb. 3/142:45 pm
ORD
-
BTM
1 stop8h 41m
United Airlines
Deal found 1/18$390
This Delta deal was found by Cheapflights users on 1/19. 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.
jue. 2/56:10 pm
BTM
-
ORD
2 stops22h 35m
Delta
mar. 2/107:05 am
ORD
-
BTM
2 stops11h 06m
Delta
Deal found 1/19$408
This United Airlines deal was found by Cheapflights users on 1/19. 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.
mié. 2/49:14 am
BTM
-
STL
1 stop6h 41m
United Airlines
sáb. 2/74:15 pm
STL
-
BTM
1 stop7h 30m
United Airlines
Deal found 1/19$415
This United Airlines deal was found by Cheapflights users on 1/18. 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.
sáb. 3/710:00 am
BTM
-
ORD
1 stop7h 45m
United Airlines
jue. 3/129:39 pm
ORD
-
BTM
1 stop25h 47m
United Airlines
Deal found 1/18$432
This United Airlines deal was found by Cheapflights users on 1/19. 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.
jue. 6/1810:00 am
BTM
-
STL
1 stop5h 26m
United Airlines
lun. 6/224:30 pm
STL
-
BTM
1 stop6h 52m
United Airlines
Deal found 1/19$448
This United Airlines deal was found by Cheapflights users on 1/19. 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.
mié. 2/49:14 am
BTM
-
ORD
1 stop8h 32m
United Airlines
lun. 2/93:59 pm
ORD
-
BTM
1 stop7h 46m
United Airlines
Deal found 1/19$450
This United Airlines deal was found by Cheapflights users on 1/18. 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.
sáb. 3/710:00 am
BTM
-
ORD
1 stop7h 45m
United Airlines
mié. 3/118:50 am
ORD
-
BTM
2 stops14h 36m
United Airlines
Deal found 1/18$456
This United Airlines deal was found by Cheapflights users on 1/19. 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.
mié. 2/49:14 am
BTM
-
ORD
1 stop8h 32m
United Airlines
mar. 2/107:00 am
ORD
-
BTM
1 stop16h 45m
United Airlines
Deal found 1/19$457
This Delta deal was found by Cheapflights users on 1/19. 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.
mié. 2/46:10 pm
BTM
-
ORD
2 stops13h 32m
Delta
mar. 2/105:30 am
ORD
-
BTM
2 stops12h 41m
Delta
Deal found 1/19$475

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 enero 20, 2026.

Round-trip from

$365
(United Airlines)

One-way from

$345
(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 enero 20, 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

sáb. 3/7

10:00 am-6:45 pm

1 stop7h 45m

Chicago O'Hare Intl

vie. 3/13

2:45 pm-10:26 pm

1 stop8h 41m

$365

ButteChicago

BTM - ORD

BTMORD

Butte Silver Bow Co

sáb. 3/7

10:00 am-6:45 pm

1 stop7h 45m

Chicago O'Hare Intl

mié. 3/11

2:45 pm-10:26 pm

1 stop8h 41m

$365

ButteSt. Louis

BTM - STL

BTMSTL

Butte Silver Bow Co

jue. 4/30

10:10 am-4:57 pm

1 stop5h 47m

Lambert-St Louis

dom. 5/3

5:59 pm-10:22 pm

1 stop5h 23m

$382

ButteChicago

BTM - ORD

BTMORD

Butte Silver Bow Co

mar. 2/3

9:14 am-5:04 pm

1 stop6h 50m

Chicago O'Hare Intl

sáb. 2/7

3:59 pm-10:45 pm

1 stop7h 46m

$389

ButteChicago

BTM - ORD

BTMORD

Butte Silver Bow Co

jue. 2/5

6:10 pm-5:45 pm

2 stops22h 35m

Chicago O'Hare Intl

mar. 2/10

7:05 am-5:11 pm

2 stops11h 06m

$408

ButteSt. Louis

BTM - STL

BTMSTL

Butte Silver Bow Co

mié. 2/4

9:14 am-4:55 pm

1 stop6h 41m

Lambert-St Louis

sáb. 2/7

4:15 pm-10:45 pm

1 stop7h 30m

$415

ButteChicago

BTM - ORD

BTMORD

Butte Silver Bow Co

sáb. 3/7

10:00 am-6:45 pm

1 stop7h 45m

Chicago O'Hare Intl

jue. 3/12

9:39 pm-10:26 pm

1 stop25h 47m

$432

ButteSt. Louis

BTM - STL

BTMSTL

Butte Silver Bow Co

jue. 6/18

10:00 am-4:26 pm

1 stop5h 26m

Lambert-St Louis

lun. 6/22

4:30 pm-10:22 pm

1 stop6h 52m

$448

ButteChicago

BTM - ORD

BTMORD

Butte Silver Bow Co

mié. 2/4

9:14 am-6:46 pm

1 stop8h 32m

Chicago O'Hare Intl

mar. 2/10

7:00 am-10:45 pm

1 stop16h 45m

$457

ButteChicago

BTM - ORD

BTMORD

Butte Silver Bow Co

jue. 3/5

10:00 am-6:45 pm

1 stop7h 45m

Chicago O'Hare Intl

jue. 3/12

9:39 pm-10:26 pm

1 stop25h 47m

$457

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/18

Showing 1-10 of 17 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 7h 45m. Your travel time can differ by up to 14h 50m. 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 - 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, 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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