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

Prices for flights from Butte Silver Bow Co Airport to Illinois are updated daily.

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

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 Butte Silver Bow Co Airport to Illinois.

What documentation or ID do you need to fly to Illinois?

The necessary travel and health documents for your Illinois trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$324 Cheap Flights from Butte to Illinois in 2026

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Find the cheapest flights from Butte to Illinois

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

9:48 am - 4:34 pm

BTM

STL

5h 46m

1 stop

4:40 pm - 10:26 pm

STL

BTM

6h 46m

1 stop

$414United Airlines

Tue, Aug 25 - Sat, Aug 29

9:48 am - 4:34 pm

BTM

STL

5h 46m

1 stop

12:59 pm - 10:26 pm

STL

BTM

10h 27m

2 stops

$424United Airlines

Tue, Aug 25 - Sat, Aug 29

9:48 am - 10:00 pm

BTM

STL

11h 12m

2 stops

12:59 pm - 10:26 pm

STL

BTM

10h 27m

2 stops

$429United Airlines

Tue, Aug 25 - Sat, Aug 29

10:00 am - 8:37 pm

BTM

STL

9h 37m

1 stop

4:40 pm - 10:27 pm

STL

BTM

6h 47m

1 stop

$527United Airlines

Sat, Sep 26 - Tue, Sep 29

10:15 am - 12:44 am

BTM

ORD

13h 29m

1 stop

5:00 am - 10:30 pm

ORD

BTM

18h 30m

1 stop

$530United Airlines

Wed, Jul 1 - Tue, Jul 7

10:00 am - 8:37 pm

BTM

STL

9h 37m

1 stop

1:29 pm - 10:27 pm

STL

BTM

9h 58m

2 stops

$537United Airlines

Sat, Sep 26 - Tue, Sep 29

9:48 am - 12:02 pm

BTM

STL

25h 14m

3 stops

12:59 pm - 10:26 pm

STL

BTM

10h 27m

2 stops

$538United Airlines

Tue, Aug 25 - Sat, Aug 29

10:15 am - 12:44 am

BTM

ORD

13h 29m

1 stop

7:00 am - 10:30 pm

ORD

BTM

16h 30m

2 stops

$560United Airlines

Wed, Jul 1 - Tue, Jul 7

10:00 am - 12:13 pm

BTM

STL

25h 13m

2 stops

11:59 am - 10:27 pm

STL

BTM

11h 28m

2 stops

$607United Airlines

Sat, Sep 26 - Tue, Sep 29

10:00 am - 3:43 pm

BTM

STL

28h 43m

3 stops

11:59 am - 10:27 pm

STL

BTM

11h 28m

2 stops

$625United Airlines

Sat, Sep 26 - Tue, Sep 29

United Airlines flights from Butte to Illinois

Our best United Airlines deals on Butte to Illinois flight tickets

United Airlines

Aug 25

BTM9:48 amButte Silver Bow Co

5h 46m

1 stop

STL4:34 pmLambert-St Louis

Aug 29

STL4:40 pmLambert-St Louis

6h 46m

1 stop

BTM10:26 pmButte Silver Bow Co

$414

United Airlines

Aug 25

BTM9:48 amButte Silver Bow Co

5h 46m

1 stop

STL4:34 pmLambert-St Louis

Aug 29

STL12:59 pmLambert-St Louis

10h 27m

2 stops

BTM10:26 pmButte Silver Bow Co

$424

United Airlines

Aug 25

BTM9:48 amButte Silver Bow Co

11h 12m

2 stops

STL10:00 pmLambert-St Louis

Aug 29

STL12:59 pmLambert-St Louis

10h 27m

2 stops

BTM10:26 pmButte Silver Bow Co

$429

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

ButteSt. Louis

BTM - STL

BTMSTL

Butte Silver Bow Co

Tue 8/25

9:48 am-4:34 pm

1 stop5h 46m

Lambert-St Louis

Sat 8/29

4:40 pm-10:26 pm

1 stop6h 46m

$414

ButteSt. Louis

BTM - STL

BTMSTL

Butte Silver Bow Co

Tue 8/25

9:48 am-4:34 pm

1 stop5h 46m

Lambert-St Louis

Sat 8/29

12:59 pm-10:26 pm

2 stops10h 27m

$424

ButteSt. Louis

BTM - STL

BTMSTL

Butte Silver Bow Co

Tue 8/25

9:48 am-10:00 pm

2 stops11h 12m

Lambert-St Louis

Sat 8/29

12:59 pm-10:26 pm

2 stops10h 27m

$429

ButteSt. Louis

BTM - STL

BTMSTL

Butte Silver Bow Co

Sat 9/26

10:00 am-8:37 pm

1 stop9h 37m

Lambert-St Louis

Tue 9/29

4:40 pm-10:27 pm

1 stop6h 47m

$527

ButteChicago

BTM - ORD

BTMORD

Butte Silver Bow Co

Wed 7/1

10:15 am-12:44 am

1 stop13h 29m

Chicago O'Hare Intl

Tue 7/7

5:00 am-10:30 pm

1 stop18h 30m

$530

ButteSt. Louis

BTM - STL

BTMSTL

Butte Silver Bow Co

Sat 9/26

10:00 am-8:37 pm

1 stop9h 37m

Lambert-St Louis

Tue 9/29

1:29 pm-10:27 pm

2 stops9h 58m

$537

ButteSt. Louis

BTM - STL

BTMSTL

Butte Silver Bow Co

Tue 8/25

9:48 am-12:02 pm

3 stops25h 14m

Lambert-St Louis

Sat 8/29

12:59 pm-10:26 pm

2 stops10h 27m

$538

ButteChicago

BTM - ORD

BTMORD

Butte Silver Bow Co

Wed 7/1

10:15 am-12:44 am

1 stop13h 29m

Chicago O'Hare Intl

Tue 7/7

7:00 am-10:30 pm

2 stops16h 30m

$560

ButteSt. Louis

BTM - STL

BTMSTL

Butte Silver Bow Co

Sat 9/26

10:00 am-12:13 pm

2 stops25h 13m

Lambert-St Louis

Tue 9/29

11:59 am-10:27 pm

2 stops11h 28m

$607

ButteSt. Louis

BTM - STL

BTMSTL

Butte Silver Bow Co

Sat 9/26

10:00 am-3:43 pm

3 stops28h 43m

Lambert-St Louis

Tue 9/29

11:59 am-10:27 pm

2 stops11h 28m

$625

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Butte to Illinois

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 Butte Silver Bow Co to Illinois?

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

What airlines fly to Illinois?

United Airlines, American Airlines and Alaska Airlines are the top three most popular airlines that fly to Illinois from Butte according to our data. United Airlines is the first choice among our users, with 48% of people opting to fly with this airline when traveling to Illinois. Keep in mind that there are 4 different airlines that fly to Illinois on a routine basis, so you have a few additional options to choose from.

Cheap Butte to Illinois flight deals and tips

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

Fastest flight time	5h 18m
Direct flights	None

The fastest flight from Butte to Illinois takes 5h 18m

There are no direct flights from Butte to Illinois. There are no popular flight routes from Butte to Illinois.

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Frequently asked questions about flying from Butte to Illinois

When did momondo last update prices for flights from Butte Silver Bow Co Airport to Illinois?
Prices for flights from Butte Silver Bow Co Airport to Illinois are updated daily.
How old do you have to be to fly from Butte Silver Bow Co Airport to Illinois?
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 Butte Silver Bow Co Airport to Illinois.
What documentation or ID do you need to fly to Illinois?
The necessary travel and health documents for your Illinois trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Butte to Illinois. Millions of users trust and use momondo every year so you are in good hands.

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

Yes. All flights to Illinois from Butte on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

Once you have performed a search for Butte to Illinois flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

Yes. momondo can track prices for Butte to Illinois flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.