Which layover airport offers the lowest fares from Chicago to Helena?

Flights via Denver (DEN) offer the lowest average round-trip price of $378.

Which layover airport has the shortest connection time from Chicago to Helena?

Denver (DEN) has the shortest average layover time for this route: 1h 07m.

Which airport is the most popular layover for flights between Chicago and Helena?

Denver (DEN) was the most common stop: 60% of momondo users choosing 1-stop flights on this route connected there.

Which layover airport has the shortest travel time from Chicago to Helena?

Flights connecting via Denver (DEN) have the shortest average one-way travel time: 6h 06m.

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

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

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

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Chicago to Helena Airport.

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

The travel and health documents you'll need for your trip to Helena 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 Helena Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

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

Find the cheapest flights from Chicago 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

7:00 am - 1:40 pmORD Chicago O'Hare Intl-HLN Helena

7h 40m1 stop Denver Intl

2:27 pm - 9:33 pmHLN Helena-ORD Chicago O'Hare Intl

6h 06m1 stop Denver Intl

$379United Airlines

Thu, Jan 28 - Mon, Feb 1

2:24 pm - 9:32 pmORD Chicago O'Hare Intl-HLN Helena

8h 08m1 stop Denver Intl

2:27 pm - 9:33 pmHLN Helena-ORD Chicago O'Hare Intl

6h 06m1 stop Denver Intl

$379United Airlines

Thu, Jan 28 - Mon, Feb 1

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

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

6h 17m1 stop Salt Lake City

7:10 am - 4:27 pmHLN Helena-ORD Chicago O'Hare Intl

8h 17m2 stops Salt Lake City Detroit Metropolitan Wayne County

$384Delta

Wed, Jan 6 - Tue, Jan 12

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

6h 17m1 stop Salt Lake City

1:12 pm - 11:57 pmHLN Helena-ORD Chicago O'Hare Intl

9h 45m2 stops Salt Lake City Atlanta Hartsfield-Jackson

$384Delta

Thu, Jan 28 - Mon, Feb 1

9:50 am - 10:32 pmORD Chicago O'Hare Intl-HLN Helena

13h 42m2 stops Atlanta Hartsfield-Jackson Salt Lake City

1:12 pm - 11:57 pmHLN Helena-ORD Chicago O'Hare Intl

9h 45m2 stops Salt Lake City Atlanta Hartsfield-Jackson

$389Delta

Thu, Jan 28 - Mon, Feb 1

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

$426Alaska 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

$452Alaska Airlines

Sat, Jan 30 - Tue, Feb 2

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Alaska Airlines flights from Chicago to Helena

Our best Alaska Airlines deals on Chicago 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

$426

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

Alaska Airlines

Jan 6

ORD8:00 amChicago O'Hare Intl

9h 23m

1 stop

HLN4:23 pmHelena

Jan 12

HLN5:00 pmHelena

29h 59m

1 stop

ORD11:59 pmChicago O'Hare Intl

$482

United Airlines flights from Chicago to Helena

Our best United Airlines deals on Chicago to Helena flight tickets

United Airlines

Jan 6

ORD8:50 amChicago O'Hare Intl

13h 42m

2 stops

HLN9:32 pmHelena

Jan 12

HLN6:15 amHelena

11h 26m

2 stops

ORD6:41 pmChicago O'Hare Intl

$655

United Airlines

Jan 30

ORD9:15 amChicago O'Hare Intl

13h 17m

2 stops

HLN9:32 pmHelena

Feb 2

HLN6:15 amHelena

11h 26m

2 stops

ORD6:41 pmChicago O'Hare Intl

$717

United Airlines

Nov 1

ORD8:40 amChicago O'Hare Intl

6h 00m

1 stop

HLN1:40 pmHelena

Nov 6

HLN2:23 pmHelena

29h 01m

2 stops

ORD8:24 pmChicago O'Hare Intl

$843

Fly from

Fly to

Route

Depart

Return

Price

Cheapest 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

Quickest round-trip

ChicagoHelena

ORD Chicago O'Hare Intl - HLN Helena

ORDHLN

Chicago O'Hare Intl

Thu 1/28

7:00 am-1:40 pm

1 stop7h 40m

Helena

Mon 2/1

2:27 pm-9:33 pm

1 stop6h 06m

$379

ChicagoHelena

ORD Chicago O'Hare Intl - HLN Helena

ORDHLN

Chicago O'Hare Intl

Thu 1/28

2:24 pm-9:32 pm

1 stop8h 08m

Helena

Mon 2/1

2:27 pm-9:33 pm

1 stop6h 06m

$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

Wed 1/6

7:15 am-12:32 pm

1 stop6h 17m

Helena

Tue 1/12

7:10 am-4:27 pm

2 stops8h 17m

$384

ChicagoHelena

ORD Chicago O'Hare Intl - HLN Helena

ORDHLN

Chicago O'Hare Intl

Thu 1/28

7:15 am-12:32 pm

1 stop6h 17m

Helena

Mon 2/1

1:12 pm-11:57 pm

2 stops9h 45m

$384

ChicagoHelena

ORD Chicago O'Hare Intl - HLN Helena

ORDHLN

Chicago O'Hare Intl

Thu 1/28

9:50 am-10:32 pm

2 stops13h 42m

Helena

Mon 2/1

1:12 pm-11:57 pm

2 stops9h 45m

$389

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

$426

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

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 Chicago 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

Layovers

What is the cheapest airline that flies from Chicago to Helena?

Delta is the most popular carrier operating from Chicago to Helena

What airlines fly to Helena?

American Airlines, United Airlines and Delta are the top three most popular airlines that fly to Helena from Chicago according to our data. American 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.

When to book flights from Chicago to Helena

Are you open to changing your travel dates? Check out the ideal times to fly from Chicago to Helena according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Chicago to Helena (CHI to HLN) flight deals and tips

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

Best Price Found	$225
Fastest flight time	6h 00m
Direct flights	None

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

The fastest flight from Chicago to Helena takes 6h 00m

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

Search flight deals

Frequently asked questions about flying from Chicago to Helena

How far is Chicago to Helena by plane?
A flight from Chicago to Helena will travel around 1245.1 mi. By plane, this route typically takes 6h 00m.
When did momondo last update prices for flights from Chicago to Helena Airport?
Prices for flights from Chicago to Helena Airport were last updated today.
How old do you have to be to fly from Chicago to Helena Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Chicago to Helena Airport.
What documentation or ID do you need to fly to Helena Airport?
The travel and health documents you'll need for your trip to Helena 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 Helena Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular airline from Chicago to Helena?
Based on momondo bookings for this flight route, the most popular airline on flight routes from Chicago to Helena is United Airlines (100% of total bookings).

Why use momondo?

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

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 Chicago to Helena for you.

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

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

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

Once you have performed a search for Chicago to Helena 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 Chicago to Helena right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Chicago to Helena now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Helena and let you know when they change.