How long does it take to fly to Helena?

On average, it takes 4h 24m to fly from Illinois to Helena if you fly out of Chicago (the most popular airport in Illinois) and into Bozeman (the most popular airport in Helena). If you’re flying out of Peoria and into Bozeman, then the flight time is around 6h 22m.

When did momondo last update prices for flights from Illinois to Helena Airport?

Prices for flights from Illinois to Helena Airport were last updated today.

How old do you have to be to fly from Illinois to Helena Airport?

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Illinois to Helena Airport.

What documentation or ID do you need to fly to Helena Airport?

The travel and health documents required for your trip to Helena Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Helena Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$225 Cheap Flights from Illinois to Helena in 2026/27

Find the cheapest flights from Illinois to Helena

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

7:15 am - 12:32 pmORD Chicago O'Hare Intl-HLN Helena

6h 17m1 stop Salt Lake City

1:12 pm - 10:08 pmHLN Helena-ORD Chicago O'Hare Intl

7h 56m1 stop Salt Lake City

$379Delta

Wed, Jan 6 - Tue, Jan 12

7:15 am - 12:32 pmORD Chicago O'Hare Intl-HLN Helena

6h 17m1 stop Salt Lake City

7:10 am - 8:07 pmHLN Helena-ORD Chicago O'Hare Intl

11h 57m2 stops Salt Lake City Atlanta Hartsfield-Jackson

$384Delta

Wed, Jan 6 - Tue, Jan 12

11:20 am - 10:32 pmORD Chicago O'Hare Intl-HLN Helena

12h 12m2 stops Atlanta Hartsfield-Jackson Salt Lake City

1:12 pm - 10:08 pmHLN Helena-ORD Chicago O'Hare Intl

7h 56m1 stop Salt Lake City

$414Delta

Thu, Jan 28 - Mon, Feb 1

8:00 am - 4:23 pmORD Chicago O'Hare Intl-HLN Helena

9h 23m1 stop Seattle/Tacoma Intl

5:00 pm - 2:21 pmHLN Helena-ORD Chicago O'Hare Intl

20h 21m1 stop Seattle/Tacoma Intl

$428Alaska Airlines

Sat, Jan 30 - Tue, Feb 2

8:00 am - 4:23 pmORD Chicago O'Hare Intl-HLN Helena

9h 23m1 stop Seattle/Tacoma Intl

5:00 pm - 2:21 pmHLN Helena-ORD Chicago O'Hare Intl

20h 21m1 stop Seattle/Tacoma Intl

$439Alaska Airlines

Wed, Jan 6 - Tue, Jan 12

8:00 am - 4:23 pmORD Chicago O'Hare Intl-HLN Helena

9h 23m1 stop Seattle/Tacoma Intl

5:00 pm - 2:21 pmHLN Helena-ORD Chicago O'Hare Intl

20h 21m1 stop Seattle/Tacoma Intl

$452Alaska Airlines

Sat, Jan 30 - Tue, Feb 2

8:00 am - 4:23 pmORD Chicago O'Hare Intl-HLN Helena

9h 23m1 stop Seattle/Tacoma Intl

5:00 pm - 11:59 pmHLN Helena-ORD Chicago O'Hare Intl

29h 59m1 stop Seattle/Tacoma Intl

$482Alaska Airlines

Wed, Jan 6 - Tue, Jan 12

7:00 am - 4:04 pmORD Chicago O'Hare Intl-HLN Helena

10h 04m1 stop Seattle/Tacoma Intl

4:41 pm - 5:40 amHLN Helena-ORD Chicago O'Hare Intl

11h 59m1 stop Seattle/Tacoma Intl

$504Alaska Airlines

Fri, Nov 13 - Tue, Nov 17

11:20 am - 10:32 pmORD Chicago O'Hare Intl-HLN Helena

12h 12m2 stops Atlanta Hartsfield-Jackson Salt Lake City

7:10 am - 8:07 pmHLN Helena-ORD Chicago O'Hare Intl

11h 57m2 stops Salt Lake City Atlanta Hartsfield-Jackson

$529Delta

Wed, Jan 6 - Tue, Jan 12

8:00 am - 4:23 pmORD Chicago O'Hare Intl-HLN Helena

9h 23m1 stop Seattle/Tacoma Intl

5:00 pm - 1:13 pmHLN Helena-ORD Chicago O'Hare Intl

19h 13m2 stops Seattle/Tacoma Intl Portland

$531Alaska Airlines

Sat, Jan 30 - Tue, Feb 2

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Delta flights from Illinois to Helena

Our best Delta deals on Illinois to Helena flight tickets

Delta

Jan 6

ORD7:15 amChicago O'Hare Intl

6h 17m

1 stop

HLN12:32 pmHelena

Jan 12

HLN1:12 pmHelena

7h 56m

1 stop

ORD10:08 pmChicago O'Hare Intl

$379

Delta

Jan 6

ORD7:15 amChicago O'Hare Intl

6h 17m

1 stop

HLN12:32 pmHelena

Jan 12

HLN7:10 amHelena

11h 57m

2 stops

ORD8:07 pmChicago O'Hare Intl

$384

Delta

Jan 28

ORD11:20 amChicago O'Hare Intl

12h 12m

2 stops

HLN10:32 pmHelena

Feb 1

HLN1:12 pmHelena

7h 56m

1 stop

ORD10:08 pmChicago O'Hare Intl

$414

Alaska Airlines flights from Illinois to Helena

Our best Alaska Airlines deals on Illinois to Helena flight tickets

Alaska Airlines

Jan 30

ORD8:00 amChicago O'Hare Intl

9h 23m

1 stop

HLN4:23 pmHelena

Feb 2

HLN5:00 pmHelena

20h 21m

1 stop

ORD2:21 pmChicago O'Hare Intl

$428

Alaska Airlines

Jan 6

ORD8:00 amChicago O'Hare Intl

9h 23m

1 stop

HLN4:23 pmHelena

Jan 12

HLN5:00 pmHelena

20h 21m

1 stop

ORD2:21 pmChicago O'Hare Intl

$439

Alaska Airlines

Jan 30

ORD8:00 amChicago O'Hare Intl

9h 23m

1 stop

HLN4:23 pmHelena

Feb 2

HLN5:00 pmHelena

20h 21m

1 stop

ORD2:21 pmChicago O'Hare Intl

$452

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

ChicagoHelena

ORD Chicago O'Hare Intl - HLN Helena

ORDHLN

Chicago O'Hare Intl

Wed 1/6

7:15 am-12:32 pm

1 stop6h 17m

Helena

Tue 1/12

1:12 pm-10:08 pm

1 stop7h 56m

$379

ChicagoHelena

ORD Chicago O'Hare Intl - HLN Helena

ORDHLN

Chicago O'Hare Intl

Wed 1/6

7:15 am-12:32 pm

1 stop6h 17m

Helena

Tue 1/12

7:10 am-8:07 pm

2 stops11h 57m

$384

ChicagoHelena

ORD Chicago O'Hare Intl - HLN Helena

ORDHLN

Chicago O'Hare Intl

Thu 1/28

11:20 am-10:32 pm

2 stops12h 12m

Helena

Mon 2/1

1:12 pm-10:08 pm

1 stop7h 56m

$414

ChicagoHelena

ORD Chicago O'Hare Intl - HLN Helena

ORDHLN

Chicago O'Hare Intl

Sat 1/30

8:00 am-4:23 pm

1 stop9h 23m

Helena

Tue 2/2

5:00 pm-2:21 pm

1 stop20h 21m

$428

ChicagoHelena

ORD Chicago O'Hare Intl - HLN Helena

ORDHLN

Chicago O'Hare Intl

Wed 1/6

8:00 am-4:23 pm

1 stop9h 23m

Helena

Tue 1/12

5:00 pm-2:21 pm

1 stop20h 21m

$439

ChicagoHelena

ORD Chicago O'Hare Intl - HLN Helena

ORDHLN

Chicago O'Hare Intl

Sat 1/30

8:00 am-4:23 pm

1 stop9h 23m

Helena

Tue 2/2

5:00 pm-2:21 pm

1 stop20h 21m

$452

ChicagoHelena

ORD Chicago O'Hare Intl - HLN Helena

ORDHLN

Chicago O'Hare Intl

Wed 1/6

8:00 am-4:23 pm

1 stop9h 23m

Helena

Tue 1/12

5:00 pm-11:59 pm

1 stop29h 59m

$482

ChicagoHelena

ORD Chicago O'Hare Intl - HLN Helena

ORDHLN

Chicago O'Hare Intl

Fri 11/13

7:00 am-4:04 pm

1 stop10h 04m

Helena

Tue 11/17

4:41 pm-5:40 am

1 stop11h 59m

$504

ChicagoHelena

ORD Chicago O'Hare Intl - HLN Helena

ORDHLN

Chicago O'Hare Intl

Wed 1/6

11:20 am-10:32 pm

2 stops12h 12m

Helena

Tue 1/12

7:10 am-8:07 pm

2 stops11h 57m

$529

ChicagoHelena

ORD Chicago O'Hare Intl - HLN Helena

ORDHLN

Chicago O'Hare Intl

Sat 1/30

8:00 am-4:23 pm

1 stop9h 23m

Helena

Tue 2/2

5:00 pm-1:13 pm

2 stops19h 13m

$531

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 19 resultsSorted by cheapest first

How to get the cheapest flight ticket from Illinois to Helena

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 Helena?

Delta is the most popular carrier operating from Illinois to Helena

What airlines fly to Helena?

United Airlines, American Airlines and Delta are the top three most popular airlines that fly to Helena from Illinois 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 Helena. Keep in mind that there are 5 different airlines that fly to Helena on a routine basis, so you have a few additional options to choose from.

Cheap Illinois to Helena flight deals and tips

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

Best Price Found	$225
Fastest flight time	5h 48m
Direct flights	None

The best one-way flight to Helena from Illinois in the past 72 hours is $225. The best round-trip flight deal from Illinois to Helena found on momondo in the last 72 hours is $379.

The fastest flight from Illinois to Helena takes 5h 48m

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

Search flight deals

Frequently asked questions about flying from Illinois to Helena

When did momondo last update prices for flights from Illinois to Helena Airport?
Prices for flights from Illinois to Helena Airport were last updated today.
How old do you have to be to fly from Illinois to Helena Airport?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Illinois to Helena Airport.
What documentation or ID do you need to fly to Helena Airport?
The travel and health documents required for your trip to Helena Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Helena Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Illinois to Helena. momondo saves you time and could save you money on your trip.

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

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

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Helena from Illinois.

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

Yes. momondo can track prices for Illinois to Helena 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.