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O'Hare Intl

$159+ 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 3/21. Fares are subject to change and may not be available on all flights or dates of travel.
HLN — ORD
Feb 19 — Feb 261
Thu 2/19
Thu 2/26
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 January 20, 2026.

This United Airlines deal was found by Cheapflights users on 1/17. 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.
Tue 2/242:25 pm
HLN
-
ORD
1 stop7h 27m
United Airlines
Sat 2/288:40 am
ORD
-
HLN
1 stop6h 00m
United Airlines
Deal found 1/17$268
This United Airlines deal was found by Cheapflights users on 1/19. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/142:25 pm
HLN
-
ORD
1 stop6h 04m
United Airlines
Tue 2/177:10 am
ORD
-
HLN
1 stop7h 30m
United Airlines
Deal found 1/19$289
This Alaska Airlines deal was found by Cheapflights users on 1/17. 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.
Tue 2/244:36 pm
HLN
-
ORD
2 stops30h 23m
Alaska Airlines
Sat 2/287:00 am
ORD
-
HLN
1 stop9h 59m
Alaska Airlines
Deal found 1/17$321
This Alaska Airlines deal was found by Cheapflights users on 1/19. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/36:48 pm
HLN
-
ORD
1 stop18h 50m
Alaska Airlines
Sat 2/78:00 am
ORD
-
HLN
1 stop11h 11m
Alaska Airlines
Deal found 1/19$339
This United Airlines deal was found by Cheapflights users on 1/19. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/56:15 am
HLN
-
ORD
1 stop6h 09m
United Airlines
Mon 2/97:00 am
ORD
-
HLN
1 stop7h 41m
United Airlines
Deal found 1/19$349
This United Airlines deal was found by Cheapflights users on 1/17. 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.
Wed 1/286:15 am
HLN
-
ORD
1 stop6h 09m
United Airlines
Sat 1/317:00 am
ORD
-
HLN
1 stop7h 41m
United Airlines
Deal found 1/17$374
This Alaska Airlines deal was found by Cheapflights users on 1/18. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 1/276:48 pm
HLN
-
ORD
1 stop18h 50m
Alaska Airlines
Fri 1/306:06 pm
ORD
-
HLN
1 stop25h 05m
Alaska Airlines
Deal found 1/18$449
This United Airlines deal was found by Cheapflights users on 1/18. 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.
Tue 2/36:15 am
HLN
-
ORD
1 stop6h 09m
United Airlines
Fri 2/67:58 pm
ORD
-
HLN
2 stops18h 43m
United Airlines
Deal found 1/18$473

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 January 20, 2026.

Most accurate provider

Expedia
2 stars

Most trusted provider

Expedia
3 stars

Round-trip from

$268
(United Airlines)

One-way from

$159
(United Airlines)

Popular in

June

Cheapest in

September

Average price

$463
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.
Search Deals
From Helena to Chicago O'Hare Intl
Search Deals
One-way flight from Helena to Chicago O'Hare Intl
Search Deals
Highest demand for flights based on searches. 35% potential increase in price ($247 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 12% potential price decrease ($48 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

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 January 20, 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

Tue 2/24

2:25 pm-10:52 pm

1 stop7h 27m

Chicago O'Hare Intl

Sat 2/28

8:40 am-1:40 pm

1 stop6h 00m

$268

HelenaChicago

HLN - ORD

HLNORD

Helena

Sat 2/14

2:25 pm-9:29 pm

1 stop6h 04m

Chicago O'Hare Intl

Tue 2/17

7:10 am-1:40 pm

1 stop7h 30m

$289

HelenaChicago

HLN - ORD

HLNORD

Helena

Tue 2/24

4:36 pm-11:59 pm

2 stops30h 23m

Chicago O'Hare Intl

Sat 2/28

7:00 am-3:59 pm

1 stop9h 59m

$321

HelenaChicago

HLN - ORD

HLNORD

Helena

Mon 2/2

6:48 pm-2:38 pm

1 stop18h 50m

Chicago O'Hare Intl

Fri 2/6

6:06 pm-6:11 pm

1 stop25h 05m

$339

HelenaChicago

HLN - ORD

HLNORD

Helena

Tue 2/3

6:48 pm-2:38 pm

1 stop18h 50m

Chicago O'Hare Intl

Fri 2/6

8:00 am-6:11 pm

1 stop11h 11m

$339

HelenaChicago

HLN - ORD

HLNORD

Helena

Tue 2/3

6:48 pm-2:38 pm

1 stop18h 50m

Chicago O'Hare Intl

Sat 2/7

8:00 am-6:11 pm

1 stop11h 11m

$339

HelenaChicago

HLN - ORD

HLNORD

Helena

Fri 3/6

1:10 pm-9:52 pm

1 stop7h 42m

Chicago O'Hare Intl

Fri 3/13

7:20 am-12:21 pm

1 stop6h 01m

$349

HelenaChicago

HLN - ORD

HLNORD

Helena

Thu 2/5

6:15 am-1:24 pm

1 stop6h 09m

Chicago O'Hare Intl

Mon 2/9

7:00 am-1:41 pm

1 stop7h 41m

$349

HelenaChicago

HLN - ORD

HLNORD

Helena

Sat 3/21

2:30 pm-11:52 pm

1 stop8h 22m

$159

HelenaChicago

HLN - ORD

HLNORD

Helena

Sat 3/21

5:30 am-3:16 pm

2 stops8h 46m

$825

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/18

  • 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 90-95% 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?

    United Airlines and Alaska Airlines can get you from Helena to Chicago O'Hare Intl Airport in just under 7h 27m. Your travel time can differ by up to 22h 56m. 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
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Naperville
Gurnee
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Beloit
Delavan
Oak Brook
Downers Grove
Des Plaines
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Skokie
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Lake Geneva
Bridgeview
Kenosha
Warrenville
Waukegan
Aurora

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