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Cheap flights from Helena to Chicago from $357

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Helena to Chicago departing on 2/14. 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.
Alaska Airlines Logo
4:36 pm - 2:05 pm
HLN
-
ORD
20h 29m1 stop
Alaska Airlines Logo
7:00 am - 3:59 pm
ORD
-
HLN
9h 59m1 stop
$357Alaska Airlines
Sat, Feb 14 - Wed, Feb 18
Alaska Airlines Logo
6:32 pm - 12:13 pm
HLN
-
ORD
16h 41m1 stop
Alaska Airlines Logo
8:00 am - 6:11 pm
ORD
-
HLN
11h 11m1 stop
$377Alaska Airlines
Mon, Jan 5 - Fri, Jan 9
Alaska Airlines Logo
6:32 pm - 1:16 pm
HLN
-
ORD
17h 44m2 stops
Alaska Airlines Logo
8:00 am - 6:11 pm
ORD
-
HLN
11h 11m1 stop
$383Alaska Airlines
Mon, Jan 5 - Fri, Jan 9
Alaska Airlines Logo
4:36 pm - 1:11 pm
HLN
-
ORD
19h 35m2 stops
Alaska Airlines Logo
7:00 am - 3:59 pm
ORD
-
HLN
9h 59m1 stop
$447Alaska Airlines
Sat, Feb 14 - Wed, Feb 18
United Airlines Logo
2:26 pm - 11:59 pm
HLN
-
ORD
8h 33m1 stop
United Airlines Logo
3:42 pm - 9:31 pm
ORD
-
HLN
6h 49m1 stop
$454United Airlines
Sun, Dec 28 - Thu, Jan 1
Alaska Airlines Logo
6:48 pm - 2:38 pm
HLN
-
ORD
18h 50m1 stop
Alaska Airlines Logo
6:06 pm - 6:11 pm
ORD
-
HLN
25h 05m1 stop
$485Alaska Airlines
Sun, Jan 18 - Thu, Jan 22
Alaska Airlines Logo
6:48 pm - 1:10 pm
HLN
-
ORD
17h 22m2 stops
Alaska Airlines Logo
3:35 pm - 6:11 pm
ORD
-
HLN
27h 36m1 stop
$500Alaska Airlines
Sun, Jan 18 - Thu, Jan 22
Alaska Airlines Logo
6:48 pm - 1:10 pm
HLN
-
ORD
17h 22m2 stops
Alaska Airlines Logo
2:06 pm - 6:11 pm
ORD
-
HLN
29h 05m2 stops
$530Alaska Airlines
Sun, Jan 18 - Thu, Jan 22
Alaska Airlines Logo
6:32 pm - 1:16 pm
HLN
-
ORD
17h 44m2 stops
Alaska Airlines Logo
2:06 pm - 6:11 pm
ORD
-
HLN
29h 05m2 stops
$534Alaska Airlines
Mon, Jan 5 - Fri, Jan 9
Alaska Airlines Logo
4:36 pm - 1:11 pm
HLN
-
ORD
19h 35m2 stops
Alaska Airlines Logo
2:07 pm - 3:59 pm
ORD
-
HLN
26h 52m2 stops
$551Alaska Airlines
Sat, Feb 14 - Wed, Feb 18

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 26
HLN1:11 pmHelena
9h 52m
2 stops
ORD12:03 amChicago O'Hare Intl
Dec 30
ORD4:01 pmChicago O'Hare Intl
7h 29m
2 stops
HLN10:30 pmHelena
$989
Find similar
Delta
Dec 28
HLN1:11 pmHelena
9h 52m
2 stops
ORD12:03 amChicago O'Hare Intl
Jan 1
ORD1:35 pmChicago O'Hare Intl
9h 55m
2 stops
HLN10:30 pmHelena
$1,619
Find similar

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

Our best United Airlines deals on Helena to Chicago O'Hare Intl Airport flight tickets
United Airlines
Dec 28
HLN2:26 pmHelena
8h 33m
1 stop
ORD11:59 pmChicago O'Hare Intl
Jan 1
ORD3:42 pmChicago O'Hare Intl
6h 49m
1 stop
HLN9:31 pmHelena
$454
Find similar
United Airlines
Dec 26
HLN2:26 pmHelena
7h 34m
1 stop
ORD11:00 pmChicago O'Hare Intl
Dec 30
ORD1:55 pmChicago O'Hare Intl
8h 36m
1 stop
HLN9:31 pmHelena
$581
Find similar
United Airlines
Dec 26
HLN2:26 pmHelena
7h 34m
1 stop
ORD11:00 pmChicago O'Hare Intl
Dec 30
ORD8:20 pmChicago O'Hare Intl
18h 25m
2 stops
HLN1:45 pmHelena
$667
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 December 11, 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

Sat 2/14

4:36 pm-2:05 pm

1 stop20h 29m

Chicago O'Hare Intl

Wed 2/18

7:00 am-3:59 pm

1 stop9h 59m

$357

HelenaChicago

HLN - ORD

HLNORD

Helena

Mon 1/5

6:32 pm-12:13 pm

1 stop16h 41m

Chicago O'Hare Intl

Fri 1/9

8:00 am-6:11 pm

1 stop11h 11m

$377

HelenaChicago

HLN - ORD

HLNORD

Helena

Mon 1/5

6:32 pm-1:16 pm

2 stops17h 44m

Chicago O'Hare Intl

Fri 1/9

8:00 am-6:11 pm

1 stop11h 11m

$383

HelenaChicago

HLN - ORD

HLNORD

Helena

Sat 2/14

4:36 pm-1:11 pm

2 stops19h 35m

Chicago O'Hare Intl

Wed 2/18

7:00 am-3:59 pm

1 stop9h 59m

$447

HelenaChicago

HLN - ORD

HLNORD

Helena

Sun 12/28

2:26 pm-11:59 pm

1 stop8h 33m

Chicago O'Hare Intl

Thu 1/1

3:42 pm-9:31 pm

1 stop6h 49m

$454

HelenaChicago

HLN - ORD

HLNORD

Helena

Sun 1/18

6:48 pm-2:38 pm

1 stop18h 50m

Chicago O'Hare Intl

Thu 1/22

6:06 pm-6:11 pm

1 stop25h 05m

$485

HelenaChicago

HLN - ORD

HLNORD

Helena

Sun 1/18

6:48 pm-1:10 pm

2 stops17h 22m

Chicago O'Hare Intl

Thu 1/22

3:35 pm-6:11 pm

1 stop27h 36m

$500

HelenaChicago

HLN - ORD

HLNORD

Helena

Sun 1/18

6:48 pm-1:10 pm

2 stops17h 22m

Chicago O'Hare Intl

Thu 1/22

2:06 pm-6:11 pm

2 stops29h 05m

$530

HelenaChicago

HLN - ORD

HLNORD

Helena

Mon 1/5

6:32 pm-1:16 pm

2 stops17h 44m

Chicago O'Hare Intl

Fri 1/9

2:06 pm-6:11 pm

2 stops29h 05m

$534

HelenaChicago

HLN - ORD

HLNORD

Helena

Sat 2/14

4:36 pm-1:11 pm

2 stops19h 35m

Chicago O'Hare Intl

Wed 2/18

2:07 pm-3:59 pm

2 stops26h 52m

$551

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

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

Fastest flight time

5h 48m

Direct flights

None
The fastest flight from Helena to Chicago O'Hare Intl Airport takes 5h 48m
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.
Search flight deals

  • 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 48m 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 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.

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
Aurora
Elgin
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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