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

Delta, Alaska Airlines, and United Airlines are the most popular carriers operating from Helena to Chicago

What airlines fly to Chicago?

United Airlines, American Airlines and Delta are the top three most popular airlines that fly to Chicago from Helena according to our data. United Airlines is the first choice among our users, with 42% of people opting to fly with this airline when traveling to Chicago. Keep in mind that there are 4 different airlines that fly to Chicago on a routine basis, so you have a few additional options to choose from.

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

Prices for flights from Helena Airport to Chicago are refreshed on a daily basis.

How many operators does momondo search for flights from Helena Airport to Chicago?

As of October 2025, there are 2 operators available to choose from for flights from Helena Airport to Chicago.

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

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 Helena Airport to Chicago.

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

The travel and health documents required for your trip to Chicago 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 Chicago. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$170 Cheap Flights from Helena to Chicago in 2025/26

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Find the cheapest flights from Helena to Chicago

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

4:10 pm - 5:04 amHLN-ORD

11h 54m1 stop

7:45 am - 3:43 pmORD-HLN

8h 58m1 stop

$330Alaska Airlines

Find Deal

Sat, Feb 28 - Wed, Mar 11

5:30 am - 12:38 pmHLN-ORD

6h 08m1 stop

7:20 am - 12:26 pmORD-HLN

6h 06m1 stop

$339Delta

Find Deal

Sat, Nov 15 - Tue, Nov 18

4:10 pm - 5:04 amHLN-ORD

11h 54m1 stop

7:45 am - 3:43 pmORD-HLN

8h 58m1 stop

$340Alaska Airlines

Find Deal

Sat, Feb 28 - Wed, Mar 11

6:13 pm - 6:22 amHLN-ORD

11h 09m1 stop

8:00 am - 5:36 pmORD-HLN

10h 36m1 stop

$342Alaska Airlines

Find Deal

Mon, Nov 17 - Wed, Nov 19

5:30 am - 4:24 pmHLN-ORD

9h 54m2 stops

7:20 am - 12:26 pmORD-HLN

6h 06m1 stop

$344Delta

Find Deal

Sat, Nov 15 - Tue, Nov 18

4:10 pm - 1:59 pmHLN-ORD

20h 49m2 stops

7:45 am - 3:43 pmORD-HLN

8h 58m1 stop

$346Alaska Airlines

Find Deal

Tue, Mar 3 - Wed, Mar 11

5:30 am - 12:38 pmHLN-ORD

6h 08m1 stop

7:20 am - 12:26 pmORD-HLN

6h 06m1 stop

$349Delta

Find Deal

Sun, Nov 16 - Wed, Nov 19

2:22 pm - 10:50 pmHLN-ORD

7h 28m1 stop

9:06 am - 9:22 pmORD-HLN

13h 16m2 stops

$498United Airlines

Find Deal

Mon, Nov 17 - Sat, Nov 22

2:22 pm - 11:59 pmHLN-ORD

8h 37m1 stop

9:06 am - 9:22 pmORD-HLN

13h 16m2 stops

$529United Airlines

Find Deal

Wed, Nov 19 - Mon, Nov 24

7:00 am - 8:16 pmHLN-ORD

12h 16m2 stops

9:05 am - 8:59 pmORD-HLN

12h 54m2 stops

$558United Airlines

Find Deal

Sat, Apr 11 - Tue, Apr 21

Alaska Airlines flights from Helena to Chicago

Our best Alaska Airlines deals on Helena to Chicago flight tickets

Alaska Airlines

Feb 28

HLN4:10 pmHelena

11h 54m

1 stop

ORD5:04 amChicago O'Hare Intl

Mar 11

ORD7:45 amChicago O'Hare Intl

8h 58m

1 stop

HLN3:43 pmHelena

$330

Find similar

Alaska Airlines

Feb 28

HLN4:10 pmHelena

11h 54m

1 stop

ORD5:04 amChicago O'Hare Intl

Mar 11

ORD7:45 amChicago O'Hare Intl

8h 58m

1 stop

HLN3:43 pmHelena

$340

Find similar

Alaska Airlines

Nov 17

HLN6:13 pmHelena

11h 09m

1 stop

ORD6:22 amChicago O'Hare Intl

Nov 19

ORD8:00 amChicago O'Hare Intl

10h 36m

1 stop

HLN5:36 pmHelena

$342

Find similar

Delta flights from Helena to Chicago

Our best Delta deals on Helena to Chicago flight tickets

Delta

Nov 15

HLN5:30 amHelena

6h 08m

1 stop

ORD12:38 pmChicago O'Hare Intl

Nov 18

ORD7:20 amChicago O'Hare Intl

6h 06m

1 stop

HLN12:26 pmHelena

$339

Find similar

Delta

Nov 15

HLN5:30 amHelena

9h 54m

2 stops

ORD4:24 pmChicago O'Hare Intl

Nov 18

ORD7:20 amChicago O'Hare Intl

6h 06m

1 stop

HLN12:26 pmHelena

$344

Find similar

Delta

Nov 16

HLN5:30 amHelena

6h 08m

1 stop

ORD12:38 pmChicago O'Hare Intl

Nov 19

ORD7:20 amChicago O'Hare Intl

6h 06m

1 stop

HLN12:26 pmHelena

$349

Find similar

Fly from

Fly to

Route

Depart

Return

Price

HelenaChicago

HLN - ORD

HLNORD

Helena

Sat 2/28

4:10 pm-5:04 am

1 stop11h 54m

Chicago O'Hare Intl

Wed 3/11

7:45 am-3:43 pm

1 stop8h 58m

$330

HelenaChicago

HLN - ORD

HLNORD

Helena

Sat 11/15

5:30 am-12:38 pm

1 stop6h 08m

Chicago O'Hare Intl

Tue 11/18

7:20 am-12:26 pm

1 stop6h 06m

$339

HelenaChicago

HLN - ORD

HLNORD

Helena

Sat 2/28

4:10 pm-5:04 am

1 stop11h 54m

Chicago O'Hare Intl

Wed 3/11

7:45 am-3:43 pm

1 stop8h 58m

$340

HelenaChicago

HLN - ORD

HLNORD

Helena

Mon 11/17

6:13 pm-6:22 am

1 stop11h 09m

Chicago O'Hare Intl

Wed 11/19

8:00 am-5:36 pm

1 stop10h 36m

$342

HelenaChicago

HLN - ORD

HLNORD

Helena

Sat 11/15

5:30 am-4:24 pm

2 stops9h 54m

Chicago O'Hare Intl

Tue 11/18

7:20 am-12:26 pm

1 stop6h 06m

$344

HelenaChicago

HLN - ORD

HLNORD

Helena

Tue 3/3

4:10 pm-1:59 pm

2 stops20h 49m

Chicago O'Hare Intl

Wed 3/11

7:45 am-3:43 pm

1 stop8h 58m

$346

HelenaChicago

HLN - ORD

HLNORD

Helena

Sun 11/16

5:30 am-12:38 pm

1 stop6h 08m

Chicago O'Hare Intl

Wed 11/19

7:20 am-12:26 pm

1 stop6h 06m

$349

HelenaChicago

HLN - ORD

HLNORD

Helena

Mon 11/17

2:22 pm-10:50 pm

1 stop7h 28m

Chicago O'Hare Intl

Sat 11/22

9:06 am-9:22 pm

2 stops13h 16m

$498

HelenaChicago

HLN - ORD

HLNORD

Helena

Wed 11/19

2:22 pm-11:59 pm

1 stop8h 37m

Chicago O'Hare Intl

Mon 11/24

9:06 am-9:22 pm

2 stops13h 16m

$529

HelenaChicago

HLN - ORD

HLNORD

Helena

Sat 4/11

7:00 am-8:16 pm

2 stops12h 16m

Chicago O'Hare Intl

Tue 4/21

9:05 am-8:59 pm

2 stops12h 54m

$558

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 Helena to Chicago

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

Prices

Airlines

What is the cheapest day to depart on your flight to Chicago?

The cheapest day to depart on your flight to Chicago is on a Wednesday when prices can be found for as low as $680. This is often the case because there is less demand to fly during this day of the week. When flying out on a Monday, the most expensive travel day of the week, you can expect to see flight prices from Helena to Chicago for around $780.

What is the cheapest time of day to depart on your flight to Chicago?

Our most recent data shows that the best time of day to fly to Chicago is at noon. Flights from Helena to Chicago during this time can be as low as $620. In contrast, the most expensive time of day to depart to Chicago is in the morning when prices are around $708.

When to book flights from Helena to Chicago

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

Estimated round-trip price

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

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

Direct flights	None

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

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How far is Helena to Chicago by plane?
There are 1245.1 mi between Helena and Chicago. 5h 51m is a normal flight duration for this route.
When did momondo last update prices for flights from Helena Airport to Chicago?
Prices for flights from Helena Airport to Chicago are refreshed on a daily basis.
How many operators does momondo search for flights from Helena Airport to Chicago?
As of October 2025, there are 2 operators available to choose from for flights from Helena Airport to Chicago.
How old do you have to be to fly from Helena Airport to Chicago?
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 Helena Airport to Chicago.
What documentation or ID do you need to fly to Chicago?
The travel and health documents required for your trip to Chicago 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 Chicago. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from Helena to Chicago

Compare and see reviews for airlines that fly from Helena to Chicago with momondo

Airline	Rating	Free Cancellation	Price
Delta	PriceFrom $314	Free Cancellation	Rating 7.9 7,997 reviews		Search Delta flights

Merrillville

New Buffalo

Hammond

Benton Harbor

Saint Joseph

Lansing

Portage

Schererville

Valparaiso

Crown Point

Munster

Chesterton

Monticello

Porter

Griffith

Saint John

Why use momondo?

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

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

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

All flight searches from Helena to Chicago on momondo can be filtered to show those which offer flexible booking policies.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Helena to Chicago.

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

Price alerts on flights to Chicago from Helena are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.