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Cheap flights from Illinois to Butte from $300

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Illinois to Butte departing on 3/4. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Illinois to Butte

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
4:30 pm - 10:26 pm
STL
-
BTM
6h 56m
1 stop
United Airlines Logo
10:00 am - 4:58 pm
BTM
-
STL
5h 58m
1 stop
$389United Airlines
Sat, Feb 21 - Wed, Feb 25
United Airlines Logo
2:40 pm - 10:26 pm
ORD
-
BTM
8h 46m
1 stop
United Airlines Logo
10:00 am - 6:55 pm
BTM
-
ORD
7h 55m
1 stop
$389United Airlines
Mon, Feb 23 - Sat, Feb 28
United Airlines Logo
12:15 pm - 10:26 pm
STL
-
BTM
11h 11m
2 stops
United Airlines Logo
10:00 am - 4:58 pm
BTM
-
STL
5h 58m
1 stop
$399United Airlines
Sat, Feb 21 - Wed, Feb 25
United Airlines Logo
2:40 pm - 10:26 pm
ORD
-
BTM
8h 46m
1 stop
United Airlines Logo
10:00 am - 9:38 am
BTM
-
ORD
22h 38m
1 stop
$423United Airlines
Mon, Feb 23 - Tue, Mar 3
United Airlines Logo
2:40 pm - 10:26 pm
ORD
-
BTM
8h 46m
1 stop
United Airlines Logo
10:00 am - 6:55 pm
BTM
-
ORD
7h 55m
1 stop
$432United Airlines
Sat, Feb 28 - Wed, Mar 4
United Airlines Logo
2:40 pm - 10:26 pm
ORD
-
BTM
8h 46m
1 stop
United Airlines Logo
10:00 am - 9:38 am
BTM
-
ORD
22h 38m
1 stop
$433United Airlines
Mon, Feb 23 - Mon, Mar 2
Delta Logo
9:34 am - 5:09 pm
MDW
-
BTM
8h 35m
2 stops
Delta Logo
6:10 pm - 9:54 am
BTM
-
MDW
14h 44m
2 stops
$474Delta
Tue, Feb 24 - Mon, Mar 2
United Airlines Logo
2:40 pm - 10:26 pm
ORD
-
BTM
8h 46m
1 stop
United Airlines Logo
10:00 am - 7:55 am
BTM
-
ORD
20h 55m
2 stops
$482United Airlines
Mon, Feb 23 - Tue, Mar 3
United Airlines Logo
8:30 am - 10:26 pm
STL
-
BTM
14h 56m
2 stops
United Airlines Logo
10:00 am - 9:05 pm
BTM
-
STL
10h 05m
2 stops
$488United Airlines
Sat, Feb 21 - Wed, Feb 25
Delta Logo
9:34 am - 5:09 pm
MDW
-
BTM
8h 35m
2 stops
Delta Logo
6:10 pm - 6:40 pm
BTM
-
MDW
23h 30m
2 stops
$534Delta
Tue, Feb 24 - Tue, Mar 3

United Airlines flights from Illinois to Butte

Our best United Airlines deals on Illinois to Butte flight tickets
United Airlines
Feb 21
STL4:30 pmLambert-St Louis
6h 56m
1 stop
BTM10:26 pmButte Silver Bow Co
Feb 25
BTM10:00 amButte Silver Bow Co
5h 58m
1 stop
STL4:58 pmLambert-St Louis
$389
United Airlines
Feb 21
STL12:15 pmLambert-St Louis
11h 11m
2 stops
BTM10:26 pmButte Silver Bow Co
Feb 25
BTM10:00 amButte Silver Bow Co
5h 58m
1 stop
STL4:58 pmLambert-St Louis
$399
United Airlines
Feb 23
ORD2:40 pmChicago O'Hare Intl
8h 46m
1 stop
BTM10:26 pmButte Silver Bow Co
Mar 3
BTM10:00 amButte Silver Bow Co
22h 38m
1 stop
ORD9:38 amChicago O'Hare Intl
$423

Delta flights from Illinois to Butte

Our best Delta deals on Illinois to Butte flight tickets
Delta
Feb 24
MDW9:34 amChicago Midway
8h 35m
2 stops
BTM5:09 pmButte Silver Bow Co
Mar 2
BTM6:10 pmButte Silver Bow Co
14h 44m
2 stops
MDW9:54 amChicago Midway
$474
Delta
Feb 24
MDW9:34 amChicago Midway
8h 35m
2 stops
BTM5:09 pmButte Silver Bow Co
Mar 3
BTM6:10 pmButte Silver Bow Co
23h 30m
2 stops
MDW6:40 pmChicago Midway
$534
Delta
Feb 24
MDW9:34 amChicago Midway
8h 35m
2 stops
BTM5:09 pmButte Silver Bow Co
Feb 27
BTM6:10 pmButte Silver Bow Co
21h 04m
2 stops
MDW4:14 pmChicago Midway
$580

momondo Fare Finder

 
Customize your flight search to find flights from Illinois to Butte 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, momondo users made 832,500 searches. Data last updated February 3, 2026.
Use the filters below to find and compare flights from Illinois to Butte that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

St. LouisButte

STL - BTM

STLBTM

Lambert-St Louis

Sat 2/21

4:30 pm-10:26 pm

1 stop6h 56m

Butte Silver Bow Co

Wed 2/25

10:00 am-4:58 pm

1 stop5h 58m

$389

ChicagoButte

ORD - BTM

ORDBTM

Chicago O'Hare Intl

Mon 2/23

2:40 pm-10:26 pm

1 stop8h 46m

Butte Silver Bow Co

Sat 2/28

10:00 am-6:55 pm

1 stop7h 55m

$389

St. LouisButte

STL - BTM

STLBTM

Lambert-St Louis

Sat 2/21

12:15 pm-10:26 pm

2 stops11h 11m

Butte Silver Bow Co

Wed 2/25

10:00 am-4:58 pm

1 stop5h 58m

$399

ChicagoButte

ORD - BTM

ORDBTM

Chicago O'Hare Intl

Mon 2/23

2:40 pm-10:26 pm

1 stop8h 46m

Butte Silver Bow Co

Tue 3/3

10:00 am-9:38 am

1 stop22h 38m

$423

ChicagoButte

ORD - BTM

ORDBTM

Chicago O'Hare Intl

Sat 2/28

2:40 pm-10:26 pm

1 stop8h 46m

Butte Silver Bow Co

Wed 3/4

10:00 am-6:55 pm

1 stop7h 55m

$432

ChicagoButte

ORD - BTM

ORDBTM

Chicago O'Hare Intl

Mon 2/23

2:40 pm-10:26 pm

1 stop8h 46m

Butte Silver Bow Co

Mon 3/2

10:00 am-9:38 am

1 stop22h 38m

$433

ChicagoButte

MDW - BTM

MDWBTM

Chicago Midway

Tue 2/24

9:34 am-5:09 pm

2 stops8h 35m

Butte Silver Bow Co

Mon 3/2

6:10 pm-9:54 am

2 stops14h 44m

$474

ChicagoButte

ORD - BTM

ORDBTM

Chicago O'Hare Intl

Mon 2/23

2:40 pm-10:26 pm

1 stop8h 46m

Butte Silver Bow Co

Tue 3/3

10:00 am-7:55 am

2 stops20h 55m

$482

St. LouisButte

STL - BTM

STLBTM

Lambert-St Louis

Sat 2/21

8:30 am-10:26 pm

2 stops14h 56m

Butte Silver Bow Co

Wed 2/25

10:00 am-9:05 pm

2 stops10h 05m

$488

ChicagoButte

MDW - BTM

MDWBTM

Chicago Midway

Tue 2/24

9:34 am-5:09 pm

2 stops8h 35m

Butte Silver Bow Co

Tue 3/3

6:10 pm-6:40 pm

2 stops23h 30m

$534

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 13 resultsSorted by cheapest first
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See travel insights to Butte from

How to get the cheapest flight ticket from Illinois to Butte

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest airline that flies from Illinois to Butte Silver Bow Co?

United Airlines and Delta are the most popular carriers operating from Illinois to Butte Silver Bow Co

What airlines fly to Butte?

American Airlines, United Airlines and Alaska Airlines are the top three most popular airlines that fly to Butte from Illinois according to our data. American Airlines is the first choice among our users, with 50% of people opting to fly with this airline when traveling to Butte. Keep in mind that there are 5 different airlines that fly to Butte on a routine basis, so you have a few additional options to choose from.

Cheap Illinois to Butte flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Illinois to Butte

Fastest flight time

6h 56m

Direct flights

None
The fastest flight from Illinois to Butte takes 6h 56m
There are no direct flights from Illinois to Butte. There are no popular flight routes from Illinois to Butte.
Search flight deals

  • When did momondo last update prices for flights from Illinois to Butte Silver Bow Co Airport?

    Prices for flights from Illinois to Butte Silver Bow Co Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from Illinois to Butte Silver Bow Co Airport?

  • How old do you have to be to fly from Illinois to Butte Silver Bow Co Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Illinois to Butte Silver Bow Co Airport.

  • What documentation or ID do you need to fly to Butte Silver Bow Co Airport?

    The travel and health documents you'll need for your trip to Butte Silver Bow Co Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Butte Silver Bow Co Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Traveling to a place near Butte?

Book flights to Butte if you plan to visit one of these locations
Dillon

Why use momondo?

Why should I use momondo to find a flight deal from Illinois to Butte?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Illinois to Butte for you.

Can I find flights from Illinois to Butte with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Illinois to Butte flights to just show those with flexible booking policies.

How can momondo help me find flights from Illinois to Butte?

momondo provides multiple filters to help you find the best flight to Butte from Illinois. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Illinois to Butte right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Illinois to Butte flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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