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Cheap flights from Helena to Chicago from $167

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Helena to Chicago departing on 1/4. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Helena to Chicago

Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
1:11 pm - 9:36 pmHLN-ORD
7h 25m1 stop
Delta Logo
7:25 am - 10:30 pmORD-HLN
16h 05m1 stop
$392Delta
Find Deal
Sun, Dec 21 - Tue, Dec 30
Delta Logo
1:11 pm - 9:36 pmHLN-ORD
7h 25m1 stop
Delta Logo
7:25 am - 10:30 pmORD-HLN
16h 05m1 stop
$422Delta
Find Deal
Mon, Dec 22 - Tue, Dec 30
Delta Logo
5:30 am - 9:36 pmHLN-ORD
15h 06m1 stop
Delta Logo
7:25 am - 10:30 pmORD-HLN
16h 05m1 stop
$425Delta
Find Deal
Wed, Dec 24 - Tue, Dec 30
Alaska Airlines Logo
6:32 pm - 6:29 amHLN-ORD
10h 57m1 stop
Alaska Airlines Logo
6:08 pm - 5:55 pmORD-HLN
24h 47m1 stop
$437Alaska Airlines
Find Deal
Wed, Dec 24 - Wed, Dec 31
United Airlines Logo
2:26 pm - 9:19 pmHLN-ORD
5h 53m1 stop
United Airlines Logo
7:10 am - 1:45 pmORD-HLN
7h 35m1 stop
$459United Airlines
Find Deal
Wed, Dec 24 - Thu, Dec 25
Alaska Airlines Logo
6:32 pm - 11:59 pmHLN-ORD
28h 27m1 stop
Alaska Airlines Logo
6:00 am - 5:55 pmORD-HLN
12h 55m1 stop
$467Alaska Airlines
Find Deal
Thu, Dec 25 - Mon, Dec 29
United Airlines Logo
2:26 pm - 11:59 pmHLN-ORD
8h 33m1 stop
United Airlines Logo
7:10 am - 1:45 pmORD-HLN
7h 35m1 stop
$469United Airlines
Find Deal
Mon, Dec 22 - Thu, Dec 25
Delta Logo
1:11 pm - 12:41 pmHLN-ORD
22h 30m1 stop
Delta Logo
7:25 am - 10:30 pmORD-HLN
16h 05m1 stop
$486Delta
Find Deal
Sat, Dec 20 - Tue, Dec 30
Alaska Airlines Logo
6:28 pm - 11:59 pmHLN-ORD
28h 31m1 stop
Alaska Airlines Logo
10:00 am - 5:51 pmORD-HLN
8h 51m1 stop
$487Alaska Airlines
Find Deal
Mon, Dec 8 - Thu, Dec 11
United Airlines Logo
2:26 pm - 11:59 pmHLN-ORD
8h 33m1 stop
United Airlines Logo
7:10 am - 1:45 pmORD-HLN
7h 35m1 stop
$539United Airlines
Find Deal
Sun, Dec 21 - Thu, Dec 25

Delta flights from Helena to Chicago O'Hare Intl Airport

Our best Delta deals on Helena to Chicago O'Hare Intl Airport flight tickets
Delta
Dec 21
HLN1:11 pmHelena
7h 25m
1 stop
ORD9:36 pmChicago O'Hare Intl
Dec 30
ORD7:25 amChicago O'Hare Intl
16h 05m
1 stop
HLN10:30 pmHelena
$392
Find similar
Delta
Dec 22
HLN1:11 pmHelena
7h 25m
1 stop
ORD9:36 pmChicago O'Hare Intl
Dec 30
ORD7:25 amChicago O'Hare Intl
16h 05m
1 stop
HLN10:30 pmHelena
$422
Find similar
Delta
Dec 24
HLN5:30 amHelena
15h 06m
1 stop
ORD9:36 pmChicago O'Hare Intl
Dec 30
ORD7:25 amChicago O'Hare Intl
16h 05m
1 stop
HLN10:30 pmHelena
$425
Find similar

Alaska Airlines flights from Helena to Chicago O'Hare Intl Airport

Our best Alaska Airlines deals on Helena to Chicago O'Hare Intl Airport flight tickets
Alaska Airlines
Dec 24
HLN6:32 pmHelena
10h 57m
1 stop
ORD6:29 amChicago O'Hare Intl
Dec 31
ORD6:08 pmChicago O'Hare Intl
24h 47m
1 stop
HLN5:55 pmHelena
$437
Find similar
Alaska Airlines
Dec 25
HLN6:32 pmHelena
28h 27m
1 stop
ORD11:59 pmChicago O'Hare Intl
Dec 29
ORD6:00 amChicago O'Hare Intl
12h 55m
1 stop
HLN5:55 pmHelena
$467
Find similar
Alaska Airlines
Dec 8
HLN6:28 pmHelena
28h 31m
1 stop
ORD11:59 pmChicago O'Hare Intl
Dec 11
ORD10:00 amChicago O'Hare Intl
8h 51m
1 stop
HLN5:51 pmHelena
$487
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Helena to Chicago O'Hare Intl Airport that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated October 24, 2025.
Use the filters below to find and compare flights from Helena to Chicago O'Hare Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

HelenaChicago

HLN - ORD

HLNORD

Helena

Sun 12/21

1:11 pm-9:36 pm

1 stop7h 25m

Chicago O'Hare Intl

Tue 12/30

7:25 am-10:30 pm

1 stop16h 05m

$392

HelenaChicago

HLN - ORD

HLNORD

Helena

Mon 12/22

1:11 pm-9:36 pm

1 stop7h 25m

Chicago O'Hare Intl

Tue 12/30

7:25 am-10:30 pm

1 stop16h 05m

$422

HelenaChicago

HLN - ORD

HLNORD

Helena

Wed 12/24

5:30 am-9:36 pm

1 stop15h 06m

Chicago O'Hare Intl

Tue 12/30

7:25 am-10:30 pm

1 stop16h 05m

$425

HelenaChicago

HLN - ORD

HLNORD

Helena

Wed 12/24

6:32 pm-6:29 am

1 stop10h 57m

Chicago O'Hare Intl

Wed 12/31

6:08 pm-5:55 pm

1 stop24h 47m

$437

HelenaChicago

HLN - ORD

HLNORD

Helena

Wed 12/24

2:26 pm-9:19 pm

1 stop5h 53m

Chicago O'Hare Intl

Thu 12/25

7:10 am-1:45 pm

1 stop7h 35m

$459

HelenaChicago

HLN - ORD

HLNORD

Helena

Thu 12/25

6:32 pm-11:59 pm

1 stop28h 27m

Chicago O'Hare Intl

Mon 12/29

6:00 am-5:55 pm

1 stop12h 55m

$467

HelenaChicago

HLN - ORD

HLNORD

Helena

Mon 12/22

2:26 pm-11:59 pm

1 stop8h 33m

Chicago O'Hare Intl

Thu 12/25

7:10 am-1:45 pm

1 stop7h 35m

$469

HelenaChicago

HLN - ORD

HLNORD

Helena

Sat 12/20

1:11 pm-12:41 pm

1 stop22h 30m

Chicago O'Hare Intl

Tue 12/30

7:25 am-10:30 pm

1 stop16h 05m

$486

HelenaChicago

HLN - ORD

HLNORD

Helena

Mon 12/8

6:28 pm-11:59 pm

1 stop28h 31m

Chicago O'Hare Intl

Thu 12/11

10:00 am-5:51 pm

1 stop8h 51m

$487

HelenaChicago

HLN - ORD

HLNORD

Helena

Sun 12/21

2:26 pm-11:59 pm

1 stop8h 33m

Chicago O'Hare Intl

Thu 12/25

7:10 am-1:45 pm

1 stop7h 35m

$539

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 16 resultsSorted by cheapest first
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See travel insights to Chicago from

How to get the cheapest flight ticket from Helena to Chicago O'Hare Intl Airport

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 day to depart on your flight to Chicago O'Hare Intl Airport?

The cheapest day to depart on your flight to Chicago O'Hare Intl Airport is on a Wednesday when prices can be found for as low as $467. This is often the case because there is less demand to fly during this day of the week. On the other hand, Tuesday is the most expensive day to depart from Helena because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $667.

What is the cheapest time of day to depart on your flight to Chicago O'Hare Intl Airport?

Flying to Chicago O'Hare Intl Airport from Helena in the morning is the least expensive time of day to depart. momondo users have found prices as low as $524 when looking at flights departing in the morning. Try not to purchase tickets at noon because they tend to be around $653. Of course, these prices can vary depending on the time of year and what airport you fly to.

When to book flights from Helena to Chicago O'Hare Intl Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Helena to Chicago O'Hare Intl Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Helena to Chicago O'Hare Intl Airport (HLN to ORD) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Helena to Chicago O'Hare Intl Airport

Direct flights

None
There are no direct flights from Helena to Chicago O'Hare Intl Airport. There are no popular flight routes from Helena to Chicago O'Hare Intl Airport.
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  • How far is Helena to Chicago O'Hare Intl by plane?

    A flight from Helena to Chicago O'Hare Intl will travel around 1229.2 mi. 5h 53m is a normal flight duration for this route.

  • When did momondo last update prices for flights from Helena Airport to Chicago O'Hare Intl Airport?

    Prices for flights from Helena Airport to Chicago O'Hare Intl Airport were last updated today.

  • How many operators does momondo search for flights from Helena Airport to Chicago O'Hare Intl Airport?

  • How old do you have to be to fly from Helena Airport to Chicago O'Hare Intl Airport?

    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 Helena Airport to Chicago O'Hare Intl Airport.

  • What documentation or ID do you need to fly to Chicago O'Hare Intl Airport?

    The required travel and health documents for your Chicago O'Hare Intl Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Chicago O'Hare Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular airline from Helena to Chicago O'Hare Intl Airport?

Best airlines flying from Helena to Chicago O'Hare Intl Airport

Compare and see reviews for airlines that fly from Helena to Chicago O'Hare Intl Airport with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $314Free CancellationRating
7.9
7,982 reviews
Search Delta flights

Traveling to a place near Chicago?

Book flights to Chicago if you plan to visit one of these locations
Lake Geneva
South Haven
Schaumburg
Rockford
Merrillville
Gurnee
Naperville
Rosemont
Kenosha
New Buffalo
Joliet
Oak Brook
Orland Park
Racine
Hammond
Tinley Park
Janesville
Elgin
Aurora
Benton Harbor

Why use momondo?

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

Finding the right flight to Chicago from Helena is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Chicago quick and easy, saving you time and money.

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

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

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

momondo helps you find the best flight between Helena and Chicago by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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.

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