How long does it take to fly to Butte?

Flight times from Illinois to Butte vary, but if you’re flying out of Chicago and flying into Bozeman (one of the most popular routes), then the duration is 3h 10m on average. Another popular route from Illinois to Butte is flying from Peoria to Bozeman, which will take roughly 5h 35m. Keep in mind that layovers or delays could extend your travel time.

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?

As of March 2026, there is 1 operator available to choose from 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.

$344 Cheap Flights from Illinois to Butte in 2026

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Find the cheapest flights from Illinois to Butte

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

4:48 pm - 10:30 pm

STL

BTM

6h 42m

1 stop

10:15 am - 4:33 pm

BTM

STL

5h 18m

1 stop

$461United Airlines

Tue, Jul 21 - Tue, Jul 28

4:45 pm - 10:30 pm

STL

BTM

6h 45m

1 stop

9:48 am - 4:33 pm

BTM

STL

5h 45m

1 stop

$462United Airlines

Sat, Aug 1 - Sat, Aug 8

9:23 am - 10:30 pm

STL

BTM

14h 07m

2 stops

9:48 am - 4:33 pm

BTM

STL

5h 45m

1 stop

$472United Airlines

Sat, Aug 1 - Sat, Aug 8

9:23 am - 10:30 pm

STL

BTM

14h 07m

2 stops

10:15 am - 4:33 pm

BTM

STL

5h 18m

1 stop

$521United Airlines

Tue, Jul 21 - Tue, Jul 28

9:23 am - 10:30 pm

STL

BTM

14h 07m

2 stops

9:48 am - 9:16 pm

BTM

STL

10h 28m

2 stops

$615United Airlines

Sat, Aug 1 - Sat, Aug 8

8:10 pm - 10:26 pm

ORD

BTM

27h 16m

2 stops

9:24 am - 11:23 am

BTM

ORD

24h 59m

1 stop

$661United Airlines

Thu, Mar 26 - Mon, Mar 30

9:23 am - 10:30 pm

STL

BTM

14h 07m

2 stops

10:15 am - 3:46 pm

BTM

STL

28h 31m

2 stops

$707United Airlines

Tue, Jul 21 - Tue, Jul 28

8:10 pm - 10:26 pm

ORD

BTM

27h 16m

2 stops

9:24 am - 2:46 pm

BTM

ORD

28h 22m

2 stops

$715United Airlines

Thu, Mar 26 - Mon, Mar 30

9:35 am - 5:08 pm

MDW

BTM

8h 33m

2 stops

6:10 pm - 9:56 am

BTM

MDW

14h 46m

2 stops

$1,029Delta

Thu, Mar 26 - Mon, Mar 30

6:29 am - 5:08 pm

STL

BTM

11h 39m

2 stops

6:10 pm - 12:21 am

BTM

STL

5h 11m

1 stop

$1,398Delta

Tue, Mar 31 - Wed, Apr 1

United Airlines flights from Illinois to Butte

Our best United Airlines deals on Illinois to Butte flight tickets

United Airlines

Jul 21

STL4:48 pmLambert-St Louis

6h 42m

1 stop

BTM10:30 pmButte Silver Bow Co

Jul 28

BTM10:15 amButte Silver Bow Co

5h 18m

1 stop

STL4:33 pmLambert-St Louis

$461

United Airlines

Aug 1

STL4:45 pmLambert-St Louis

6h 45m

1 stop

BTM10:30 pmButte Silver Bow Co

Aug 8

BTM9:48 amButte Silver Bow Co

5h 45m

1 stop

STL4:33 pmLambert-St Louis

$462

United Airlines

Aug 1

STL9:23 amLambert-St Louis

14h 07m

2 stops

BTM10:30 pmButte Silver Bow Co

Aug 8

BTM9:48 amButte Silver Bow Co

5h 45m

1 stop

STL4:33 pmLambert-St Louis

$472

Delta flights from Illinois to Butte

Our best Delta deals on Illinois to Butte flight tickets

Delta

Mar 26

MDW9:35 amChicago Midway

8h 33m

2 stops

BTM5:08 pmButte Silver Bow Co

Mar 30

BTM6:10 pmButte Silver Bow Co

14h 46m

2 stops

MDW9:56 amChicago Midway

$1,029

Delta

Mar 29

ORD7:10 amChicago O'Hare Intl

10h 58m

2 stops

BTM5:08 pmButte Silver Bow Co

Apr 2

BTM6:10 pmButte Silver Bow Co

14h 49m

2 stops

ORD9:59 amChicago O'Hare Intl

$1,450

Delta

Jun 15

MDW9:30 amChicago Midway

8h 25m

2 stops

BTM4:55 pmButte Silver Bow Co

Jun 19

BTM6:10 pmButte Silver Bow Co

14h 41m

2 stops

MDW9:51 amChicago Midway

$1,614

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

St. LouisButte

STL - BTM

STLBTM

Lambert-St Louis

Tue 7/21

4:48 pm-10:30 pm

1 stop6h 42m

Butte Silver Bow Co

Tue 7/28

10:15 am-4:33 pm

1 stop5h 18m

$461

St. LouisButte

STL - BTM

STLBTM

Lambert-St Louis

Sat 8/1

4:45 pm-10:30 pm

1 stop6h 45m

Butte Silver Bow Co

Sat 8/8

9:48 am-4:33 pm

1 stop5h 45m

$462

St. LouisButte

STL - BTM

STLBTM

Lambert-St Louis

Sat 8/1

9:23 am-10:30 pm

2 stops14h 07m

Butte Silver Bow Co

Sat 8/8

9:48 am-4:33 pm

1 stop5h 45m

$472

St. LouisButte

STL - BTM

STLBTM

Lambert-St Louis

Tue 7/21

9:23 am-10:30 pm

2 stops14h 07m

Butte Silver Bow Co

Tue 7/28

10:15 am-4:33 pm

1 stop5h 18m

$521

St. LouisButte

STL - BTM

STLBTM

Lambert-St Louis

Sat 8/1

9:23 am-10:30 pm

2 stops14h 07m

Butte Silver Bow Co

Sat 8/8

9:48 am-9:16 pm

2 stops10h 28m

$615

ChicagoButte

ORD - BTM

ORDBTM

Chicago O'Hare Intl

Thu 3/26

8:10 pm-10:26 pm

2 stops27h 16m

Butte Silver Bow Co

Mon 3/30

9:24 am-11:23 am

1 stop24h 59m

$661

St. LouisButte

STL - BTM

STLBTM

Lambert-St Louis

Tue 7/21

9:23 am-10:30 pm

2 stops14h 07m

Butte Silver Bow Co

Tue 7/28

10:15 am-3:46 pm

2 stops28h 31m

$707

ChicagoButte

ORD - BTM

ORDBTM

Chicago O'Hare Intl

Thu 3/26

8:10 pm-10:26 pm

2 stops27h 16m

Butte Silver Bow Co

Mon 3/30

9:24 am-2:46 pm

2 stops28h 22m

$715

ChicagoButte

MDW - BTM

MDWBTM

Chicago Midway

Thu 3/26

9:35 am-5:08 pm

2 stops8h 33m

Butte Silver Bow Co

Mon 3/30

6:10 pm-9:56 am

2 stops14h 46m

$1,029

St. LouisButte

STL - BTM

STLBTM

Lambert-St Louis

Tue 3/31

6:29 am-5:08 pm

2 stops11h 39m

Butte Silver Bow Co

Wed 4/1

6:10 pm-12:21 am

1 stop5h 11m

$1,398

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 15 resultsSorted by cheapest first

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

Airlines

Other information

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

Delta and United Airlines 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 54% 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	5h 31m
Direct flights	None

The fastest flight from Illinois to Butte takes 5h 31m

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?
As of March 2026, there is 1 operator available to choose from 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.

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.