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Cheap flights from Helena to Chicago from $231

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 8/11. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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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
1:00 pm - 9:57 pm
HLN
-
ORD
7h 57m
1 stop
Delta Logo
7:45 am - 12:20 pm
ORD
-
HLN
5h 35m
1 stop
$339Delta
Sun, Jun 7 - Sat, Jun 13
Delta Logo
5:35 am - 12:00 pm
HLN
-
ORD
5h 25m
1 stop
Delta Logo
7:45 am - 12:20 pm
ORD
-
HLN
5h 35m
1 stop
$364Delta
Thu, Jun 25 - Sun, Jun 28
Delta Logo
5:45 am - 11:52 am
HLN
-
ORD
5h 07m
1 stop
Delta Logo
7:45 am - 12:20 pm
ORD
-
HLN
5h 35m
1 stop
$399Delta
Tue, Jun 2 - Thu, Jul 2
Delta Logo
1:03 pm - 9:50 pm
HLN
-
ORD
7h 47m
1 stop
Delta Logo
12:22 pm - 10:33 pm
ORD
-
HLN
11h 11m
2 stops
$474Delta
Sat, May 23 - Sun, May 24
Delta Logo
5:45 am - 2:57 pm
HLN
-
ORD
8h 12m
2 stops
Delta Logo
9:49 am - 10:33 pm
ORD
-
HLN
13h 44m
2 stops
$479Delta
Sat, May 23 - Sun, May 24
Delta Logo
5:45 am - 4:29 pm
HLN
-
ORD
9h 44m
2 stops
Delta Logo
7:45 am - 12:20 pm
ORD
-
HLN
5h 35m
1 stop
$494Delta
Tue, Jun 2 - Thu, Jul 2
Alaska Airlines Logo
5:09 pm - 6:20 am
HLN
-
ORD
12h 11m
1 stop
Alaska Airlines Logo
6:00 am - 4:32 pm
ORD
-
HLN
11h 32m
1 stop
$498Alaska Airlines
Wed, Jul 29 - Tue, Aug 4
Alaska Airlines Logo
5:09 pm - 1:21 pm
HLN
-
ORD
19h 12m
2 stops
Alaska Airlines Logo
6:00 am - 4:32 pm
ORD
-
HLN
11h 32m
1 stop
$500Alaska Airlines
Wed, Jul 29 - Tue, Aug 4
Delta Logo
1:00 pm - 9:57 pm
HLN
-
ORD
7h 57m
1 stop
Delta Logo
11:15 am - 10:31 pm
ORD
-
HLN
12h 16m
2 stops
$510Delta
Sun, Jun 7 - Sat, Jun 13
United Airlines Logo
2:20 pm - 10:49 pm
HLN
-
ORD
7h 29m
1 stop
United Airlines Logo
6:00 am - 1:33 pm
ORD
-
HLN
8h 33m
1 stop
$514United Airlines
Mon, Jun 8 - Mon, Jun 15

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
Jun 8
HLN2:20 pmHelena
7h 29m
1 stop
ORD10:49 pmChicago O'Hare Intl
Jun 15
ORD6:00 amChicago O'Hare Intl
8h 33m
1 stop
HLN1:33 pmHelena
$514
United Airlines
May 23
HLN2:20 pmHelena
6h 19m
1 stop
ORD9:39 pmChicago O'Hare Intl
May 26
ORD6:00 amChicago O'Hare Intl
8h 33m
1 stop
HLN1:33 pmHelena
$549
United Airlines
May 23
HLN2:20 pmHelena
6h 19m
1 stop
ORD9:39 pmChicago O'Hare Intl
May 24
ORD6:00 amChicago O'Hare Intl
8h 33m
1 stop
HLN1:33 pmHelena
$559

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
Jun 7
HLN1:00 pmHelena
7h 57m
1 stop
ORD9:57 pmChicago O'Hare Intl
Jun 13
ORD7:45 amChicago O'Hare Intl
5h 35m
1 stop
HLN12:20 pmHelena
$339
Delta
Jun 25
HLN5:35 amHelena
5h 25m
1 stop
ORD12:00 pmChicago O'Hare Intl
Jun 28
ORD7:45 amChicago O'Hare Intl
5h 35m
1 stop
HLN12:20 pmHelena
$364
Delta
Jun 2
HLN5:45 amHelena
5h 07m
1 stop
ORD11:52 amChicago O'Hare Intl
Jul 2
ORD7:45 amChicago O'Hare Intl
5h 35m
1 stop
HLN12:20 pmHelena
$399

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 May 13, 2026.
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

Cheapest round-trip

HelenaChicago

HLN - ORD

HLNORD

Helena

Sun 6/7

1:00 pm-9:57 pm

1 stop7h 57m

Chicago O'Hare Intl

Sat 6/13

7:45 am-12:20 pm

1 stop5h 35m

$339

HelenaChicago

HLN - ORD

HLNORD

Helena

Thu 6/25

5:35 am-12:00 pm

1 stop5h 25m

Chicago O'Hare Intl

Sun 6/28

7:45 am-12:20 pm

1 stop5h 35m

$364
Quickest round-trip

HelenaChicago

HLN - ORD

HLNORD

Helena

Tue 6/2

5:45 am-11:52 am

1 stop5h 07m

Chicago O'Hare Intl

Thu 7/2

7:45 am-12:20 pm

1 stop5h 35m

$399

HelenaChicago

HLN - ORD

HLNORD

Helena

Sat 5/23

1:03 pm-9:50 pm

1 stop7h 47m

Chicago O'Hare Intl

Sun 5/24

12:22 pm-10:33 pm

2 stops11h 11m

$474

HelenaChicago

HLN - ORD

HLNORD

Helena

Sat 5/23

5:45 am-2:57 pm

2 stops8h 12m

Chicago O'Hare Intl

Sun 5/24

9:49 am-10:33 pm

2 stops13h 44m

$479

HelenaChicago

HLN - ORD

HLNORD

Helena

Tue 6/2

5:45 am-4:29 pm

2 stops9h 44m

Chicago O'Hare Intl

Thu 7/2

7:45 am-12:20 pm

1 stop5h 35m

$494

HelenaChicago

HLN - ORD

HLNORD

Helena

Wed 7/29

5:09 pm-6:20 am

1 stop12h 11m

Chicago O'Hare Intl

Tue 8/4

6:00 am-4:32 pm

1 stop11h 32m

$498

HelenaChicago

HLN - ORD

HLNORD

Helena

Wed 7/29

5:09 pm-1:21 pm

2 stops19h 12m

Chicago O'Hare Intl

Tue 8/4

6:00 am-4:32 pm

1 stop11h 32m

$500

HelenaChicago

HLN - ORD

HLNORD

Helena

Sun 6/7

1:00 pm-9:57 pm

1 stop7h 57m

Chicago O'Hare Intl

Sat 6/13

11:15 am-10:31 pm

2 stops12h 16m

$510

HelenaChicago

HLN - ORD

HLNORD

Helena

Mon 6/8

2:20 pm-10:49 pm

1 stop7h 29m

Chicago O'Hare Intl

Mon 6/15

6:00 am-1:33 pm

1 stop8h 33m

$514

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 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 airline that flies from Helena to Chicago O'Hare Intl?

Alaska Airlines and Delta are the most popular carriers operating from Helena to Chicago O'Hare Intl

What airlines fly to Chicago O'Hare Intl Airport?

United Airlines, American Airlines and Delta are the top three most popular airlines that fly to Chicago O'Hare Intl Airport from Helena according to our data. United Airlines is the first choice among our users, with 49% of people opting to fly with this airline when traveling to Chicago O'Hare Intl Airport. Keep in mind that there are 4 different airlines that fly to Chicago O'Hare Intl Airport on a routine basis, so you have a few additional options to choose from.

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

6h 34m

Direct flights

None
The fastest flight from Helena to Chicago O'Hare Intl Airport takes 6h 34m
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

Frequently asked questions about flying from Helena to Chicago O'Hare Intl Airport

  • 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. 6h 34m 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
Rosemont
Naperville
Orland Park
New Buffalo
Oak Brook
Kenosha
Joliet
Aurora
Racine
Janesville
Hammond
Evanston
Elgin
Tinley Park

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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