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O'Hare Intl

$145+ Cheap flights from Helena (HLN) to O'Hare Intl (ORD)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/17. Fares are subject to change and may not be available on all flights or dates of travel.
HLN — ORD
Mrz 21 — Mrz 281
Sa 3/21
Sa 3/28
1 adult, Economy
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Cheap flight deals from Helena to O'Hare Intl

Cheapest flights from Helena to O'Hare Intl
Explore the most affordable flight options available from Helena to O'Hare Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on Februar 19, 2026.

This Delta deal was found by Cheapflights users on 2/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fr 4/101:02 pm
HLN
-
ORD
1 stop7h 32m
Delta
Di 4/147:35 am
ORD
-
HLN
1 stop5h 49m
Delta
Deal found 2/18$289
This Delta deal was found by Cheapflights users on 2/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
So 5/35:40 am
HLN
-
ORD
1 stop5h 11m
Delta
Mi 5/67:35 am
ORD
-
HLN
1 stop5h 49m
Delta
Deal found 2/16$314
This Alaska Airlines deal was found by Cheapflights users on 2/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Di 3/34:36 pm
HLN
-
ORD
1 stop20h 35m
Alaska Airlines
Sa 3/77:00 am
ORD
-
HLN
1 stop9h 59m
Alaska Airlines
Deal found 2/16$339
This United Airlines deal was found by Cheapflights users on 2/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mo 3/22:25 pm
HLN
-
ORD
1 stop8h 34m
United Airlines
Do 3/52:01 pm
ORD
-
HLN
1 stop8h 24m
United Airlines
Deal found 2/16$366
This Delta deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fr 3/61:10 pm
HLN
-
ORD
1 stop7h 42m
Delta
Di 3/101:57 pm
ORD
-
HLN
2 stops9h 33m
Delta
Deal found 2/19$374
This United Airlines deal was found by Cheapflights users on 2/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fr 4/102:25 pm
HLN
-
ORD
1 stop7h 29m
United Airlines
Mo 4/132:05 pm
ORD
-
HLN
1 stop8h 28m
United Airlines
Deal found 2/17$384
This Delta deal was found by Cheapflights users on 2/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Do 4/91:02 pm
HLN
-
ORD
1 stop7h 32m
Delta
So 4/127:20 am
ORD
-
HLN
1 stop6h 01m
Delta
Deal found 2/17$399
This Delta deal was found by Cheapflights users on 2/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Do 3/55:30 am
HLN
-
ORD
1 stop5h 49m
Delta
Mo 3/91:57 pm
ORD
-
HLN
2 stops9h 33m
Delta
Deal found 2/18$404
This United Airlines deal was found by Cheapflights users on 2/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Do 4/92:25 pm
HLN
-
ORD
1 stop8h 03m
United Airlines
So 4/122:35 pm
ORD
-
HLN
1 stop7h 58m
United Airlines
Deal found 2/18$405
This United Airlines deal was found by Cheapflights users on 2/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Di 3/32:25 pm
HLN
-
ORD
1 stop8h 34m
United Airlines
Sa 3/74:08 pm
ORD
-
HLN
1 stop6h 17m
United Airlines
Deal found 2/16$419
This Alaska Airlines deal was found by Cheapflights users on 2/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Do 9/174:08 pm
HLN
-
ORD
2 stops20h 01m
Alaska Airlines
Di 9/228:00 am
ORD
-
HLN
1 stop8h 31m
Alaska Airlines
Deal found 2/17$430

Find flight deals from Helena to O'Hare Intl

Discover tips and strategies to find the most affordable flight options for your journey from Helena (HLN) to O'Hare Intl (ORD). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated Februar 19, 2026.

Most accurate provider

Expedia
1 star

Most trusted provider

Expedia
3 stars

Round-trip from

$289
(Delta)

One-way from

$145
(Delta)
Provider with most accurate pricing for Helena-Chicago O'Hare Intl flight deals.
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Provider most trusted by Cheapflights users for Helena-Chicago O'Hare Intl flights.
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From Helena to Chicago O'Hare Intl
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One-way flight from Helena to Chicago O'Hare Intl
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Helena to O'Hare Intl 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, Cheapflights users made 2,558,603 searches. Data last updated Februar 19, 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

Helena

Fly to

O'Hare Intl

Route

Depart

Return

Price

HelenaChicago

HLN - ORD

HLNORD

Helena

Fr 4/10

1:02 pm-9:34 pm

1 stop7h 32m

Chicago O'Hare Intl

Di 4/14

7:35 am-12:24 pm

1 stop5h 49m

$289

HelenaChicago

HLN - ORD

HLNORD

Helena

So 5/3

5:40 am-11:51 am

1 stop5h 11m

Chicago O'Hare Intl

Mi 5/6

7:35 am-12:24 pm

1 stop5h 49m

$314

HelenaChicago

HLN - ORD

HLNORD

Helena

Di 3/3

4:36 pm-2:11 pm

1 stop20h 35m

Chicago O'Hare Intl

Sa 3/7

7:00 am-3:59 pm

1 stop9h 59m

$339

HelenaChicago

HLN - ORD

HLNORD

Helena

Do 3/5

5:30 am-12:19 pm

1 stop5h 49m

Chicago O'Hare Intl

Mo 3/9

7:20 am-12:21 pm

1 stop6h 01m

$339

HelenaChicago

HLN - ORD

HLNORD

Helena

Fr 3/6

1:10 pm-9:52 pm

1 stop7h 42m

Chicago O'Hare Intl

Di 3/10

7:20 am-12:21 pm

1 stop6h 01m

$339

HelenaChicago

HLN - ORD

HLNORD

Helena

Mo 3/2

2:25 pm-11:59 pm

1 stop8h 34m

Chicago O'Hare Intl

Do 3/5

2:01 pm-9:25 pm

1 stop8h 24m

$366

HelenaChicago

HLN - ORD

HLNORD

Helena

Do 4/9

6:22 pm-6:39 am

1 stop11h 17m

Chicago O'Hare Intl

Mo 4/13

6:00 am-5:45 pm

1 stop12h 45m

$374

HelenaChicago

HLN - ORD

HLNORD

Helena

Fr 4/10

2:25 pm-10:54 pm

1 stop7h 29m

Chicago O'Hare Intl

Mo 4/13

2:05 pm-9:33 pm

1 stop8h 28m

$384

HelenaChicago

HLN - ORD

HLNORD

Helena

Do 4/9

1:02 pm-9:34 pm

1 stop7h 32m

Chicago O'Hare Intl

So 4/12

7:20 am-12:21 pm

1 stop6h 01m

$399

HelenaChicago

HLN - ORD

HLNORD

Helena

Do 4/9

2:25 pm-11:28 pm

1 stop8h 03m

Chicago O'Hare Intl

So 4/12

2:35 pm-9:33 pm

1 stop7h 58m

$405

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/18

Showing 1-10 of 22 results
1
2
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  • Most accurate provider: When it comes to deals on Helena-Chicago O'Hare Intl Airport flights, users find the pricing of Expedia to be most consistent on Cheapflights vs. Expedia Users can find the same prices on Helena-Chicago O'Hare Intl Airport flight deals on Cheapflights vs. Expedia <90% of the time. Price accuracy is based on data collected from Helena-Chicago O'Hare Intl Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Helena-Chicago O'Hare Intl Airport flights, Cheapflights users trust Expedia the most. Expedia has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Helena-Chicago O'Hare Intl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Helena to O'Hare Intl

Have a flexible travel schedule? Discover the best time to fly to O'Hare Intl from Helena with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Helena to Chicago O'Hare Intl Airport

What is the cheapest month to book a flight from Helena to Chicago O'Hare Intl Airport?

Currently, October is the cheapest month in which you can book a flight from Helena to Chicago O'Hare Intl Airport (average of $169). Flying from Helena to Chicago O'Hare Intl Airport in November is currently the most expensive (average of $298). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Related info for your journey

Find useful and relevant information for your journey from Helena to O'Hare Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Helena to Chicago O'Hare Intl?

    Helena (HLN) is the airport you will fly out of if you book a flight from Helena to Chicago O'Hare Intl. You should not have trouble finding flights to Chicago O'Hare Intl from Helena; the airport handles an average of 0 outbound flights to Chicago O'Hare Intl per day. You should also have plenty of airline options to choose from since 0 airlines have flights from the Helena airport to Chicago O'Hare Intl. It is only a 2.7 mi journey to Helena (HLN) from Helena’s city center.

  • How long is the flight from Helena to Chicago O'Hare Intl Airport?

    Delta and Alaska Airlines can get you from Helena to Chicago O'Hare Intl Airport in just under 7h 32m. Your travel time can differ by up to 13h 03m. Helena and Chicago O'Hare Intl Airport are separated by a distance of 1227 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • Can I find deals for flights from Helena to O'Hare Intl that include hotel bookings?

    Yes. In addition to deals on Helena to O'Hare Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Helena to O'Hare Intl?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Helena to O'Hare Intl.

  • Can I find deals for business class flights from Helena to O'Hare Intl?

    Yes. Cheapflights offers flight deals from Helena to O'Hare Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Helena to Chicago O'Hare Intl Airport?

    Currently, October is the cheapest month in which you can book a flight from Helena to Chicago O'Hare Intl Airport (average of $169). Flying from Helena to Chicago O'Hare Intl Airport in November is currently the most expensive (average of $298). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Chicago O'Hare Intl Airport?

Book flights to Chicago O'Hare Intl Airport if you plan to visit one of these locations
Schaumburg
Rosemont
Gurnee
Naperville
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Delavan
Oak Brook
Des Plaines
Elgin
Downers Grove
Elk Grove Village
Skokie
Libertyville
Oakbrook Terrace
Lake Geneva
Waukegan
Bridgeview
Kenosha
Warrenville

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