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 41% of people opting to fly with this airline when traveling to Chicago. Keep in mind that there are 5 different airlines that fly to Chicago on a routine basis, so you have a few additional options to choose from.

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

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

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 September 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.

$177 Cheap Flights from Helena to Chicago in 2025

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Find the cheapest flights from Helena to Chicago

Round-trip

One-way

Cheap round-trip flights

12:50 pm - 9:55 pmHLN-ORD

8h 05m1 stop

7:15 am - 12:27 pmORD-HLN

6h 12m1 stop

$333Delta

Find Deal

vie., feb. 27 - lun., mar. 2

6:18 pm - 11:59 pmHLN-ORD

28h 41m1 stop

6:00 am - 5:41 pmORD-HLN

12h 41m1 stop

$336Alaska Airlines

Find Deal

mar., oct. 14 - sáb., oct. 18

12:50 pm - 9:55 pmHLN-ORD

8h 05m1 stop

7:30 am - 12:27 pmORD-HLN

29h 57m2 stops

$353Delta

Find Deal

vie., feb. 27 - lun., mar. 2

4:02 pm - 12:03 amHLN-ORD

7h 01m1 stop

6:00 am - 5:41 pmORD-HLN

12h 41m1 stop

$359Hawaiian Airlines

Find Deal

vie., oct. 3 - sáb., oct. 11

6:18 pm - 1:09 pmHLN-ORD

17h 51m2 stops

8:00 am - 5:36 pmORD-HLN

10h 36m1 stop

$366Alaska Airlines

Find Deal

sáb., oct. 25 - mar., oct. 28

6:18 pm - 12:24 amHLN-ORD

29h 06m1 stop

8:00 am - 5:36 pmORD-HLN

10h 36m1 stop

$367Alaska Airlines

Find Deal

sáb., oct. 25 - mar., oct. 28

6:28 pm - 11:59 pmHLN-ORD

28h 31m1 stop

6:00 am - 5:51 pmORD-HLN

12h 51m1 stop

$370Alaska Airlines

Find Deal

mié., dic. 3 - lun., dic. 8

6:13 pm - 9:40 pmHLN-ORD

26h 27m1 stop

3:25 pm - 5:36 pmORD-HLN

27h 11m1 stop

$371Alaska Airlines

Find Deal

lun., nov. 10 - vie., nov. 14

5:18 pm - 11:59 pmHLN-ORD

5h 41m1 stop

5:01 am - 2:09 pmORD-HLN

10h 08m1 stop

$496United Airlines

Find Deal

jue., oct. 2 - lun., oct. 6

5:18 pm - 11:59 pmHLN-ORD

5h 41m1 stop

8:45 am - 9:00 pmORD-HLN

13h 15m2 stops

$505United Airlines

Find Deal

jue., oct. 2 - lun., oct. 6

Alaska Airlines flights from Helena to Chicago

Our best Alaska Airlines deals on Helena to Chicago flight tickets

Alaska Airlines

Oct 14

HLN6:18 pmHelena

28h 41m

1 stop

ORD11:59 pmChicago O'Hare Intl

Oct 18

ORD6:00 amChicago O'Hare Intl

12h 41m

1 stop

HLN5:41 pmHelena

$336

Find similar

Alaska Airlines

Oct 25

HLN6:18 pmHelena

17h 51m

2 stops

ORD1:09 pmChicago O'Hare Intl

Oct 28

ORD8:00 amChicago O'Hare Intl

10h 36m

1 stop

HLN5:36 pmHelena

$366

Find similar

Alaska Airlines

Oct 25

HLN6:18 pmHelena

29h 06m

1 stop

ORD12:24 amChicago O'Hare Intl

Oct 28

ORD8:00 amChicago O'Hare Intl

10h 36m

1 stop

HLN5:36 pmHelena

$367

Find similar

United Airlines flights from Helena to Chicago

Our best United Airlines deals on Helena to Chicago flight tickets

United Airlines

Oct 2

HLN5:18 pmHelena

5h 41m

1 stop

ORD11:59 pmChicago O'Hare Intl

Oct 6

ORD5:01 amChicago O'Hare Intl

10h 08m

1 stop

HLN2:09 pmHelena

$496

Find similar

United Airlines

Oct 2

HLN5:18 pmHelena

5h 41m

1 stop

ORD11:59 pmChicago O'Hare Intl

Oct 6

ORD8:45 amChicago O'Hare Intl

13h 15m

2 stops

HLN9:00 pmHelena

$505

Find similar

United Airlines

Nov 10

HLN2:22 pmHelena

24h 59m

2 stops

ORD4:21 pmChicago O'Hare Intl

Nov 14

ORD6:12 pmChicago O'Hare Intl

20h 15m

2 stops

HLN1:27 pmHelena

$514

Find similar

Fly from

Fly to

Route

Depart

Return

Price

HelenaChicago

HLN - ORD

HLNORD

Helena

vie. 2/27

12:50 pm-9:55 pm

1 stop8h 05m

Chicago O'Hare Intl

lun. 3/2

7:15 am-12:27 pm

1 stop6h 12m

$333

HelenaChicago

HLN - ORD

HLNORD

Helena

mar. 10/14

6:18 pm-11:59 pm

1 stop28h 41m

Chicago O'Hare Intl

sáb. 10/18

6:00 am-5:41 pm

1 stop12h 41m

$336

HelenaChicago

HLN - ORD

HLNORD

Helena

vie. 2/27

12:50 pm-9:55 pm

1 stop8h 05m

Chicago O'Hare Intl

lun. 3/2

7:30 am-12:27 pm

2 stops29h 57m

$353

HelenaChicago

HLN - ORD

HLNORD

Helena

vie. 10/3

4:02 pm-12:03 am

1 stop7h 01m

Chicago O'Hare Intl

sáb. 10/11

6:00 am-5:41 pm

1 stop12h 41m

$359

HelenaChicago

HLN - ORD

HLNORD

Helena

sáb. 10/25

6:18 pm-1:09 pm

2 stops17h 51m

Chicago O'Hare Intl

mar. 10/28

8:00 am-5:36 pm

1 stop10h 36m

$366

HelenaChicago

HLN - ORD

HLNORD

Helena

sáb. 10/25

6:18 pm-12:24 am

1 stop29h 06m

Chicago O'Hare Intl

mar. 10/28

8:00 am-5:36 pm

1 stop10h 36m

$367

HelenaChicago

HLN - ORD

HLNORD

Helena

mié. 12/3

6:28 pm-11:59 pm

1 stop28h 31m

Chicago O'Hare Intl

lun. 12/8

6:00 am-5:51 pm

1 stop12h 51m

$370

HelenaChicago

HLN - ORD

HLNORD

Helena

lun. 11/10

6:13 pm-9:40 pm

1 stop26h 27m

Chicago O'Hare Intl

vie. 11/14

3:25 pm-5:36 pm

1 stop27h 11m

$371

HelenaChicago

HLN - ORD

HLNORD

Helena

jue. 10/2

5:18 pm-11:59 pm

1 stop5h 41m

Chicago O'Hare Intl

lun. 10/6

5:01 am-2:09 pm

1 stop10h 08m

$496

HelenaChicago

HLN - ORD

HLNORD

Helena

jue. 10/2

5:18 pm-11:59 pm

1 stop5h 41m

Chicago O'Hare Intl

lun. 10/6

8:45 am-9:00 pm

2 stops13h 15m

$505

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 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.

Search flight deals

How far is Helena to Chicago by plane?
There are 1245.1 mi between Helena and Chicago. 5h 41m 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 September 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.
What is the most popular airline from Helena to Chicago?
Based on momondo bookings for flights between Helena and Chicago, the leading airline is United Airlines, making up 100% of the total bookings.

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 7,960 reviews		Search Delta flights
United Airlines	PriceFrom $404	Free Cancellation	Rating 7.4 8,937 reviews		Search United Airlines flights

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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.