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O'Hare Intl

$259+ 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 12/22. Fares are subject to change and may not be available on all flights or dates of travel.
HLN — ORD
Aug 23 — Aug 301
Sat 8/23
Sat 8/30
1 adult, Economy
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Cheap 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 August 18, 2025.

Round-trip from

$491
(United Airlines)

One-way from

$259
(Delta)

Popular in

August

Cheapest in

February

Average price

$793
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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Highest demand for flights based on searches. 10% potential increase in price ($63 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($27 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Find 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 August 18, 2025.

This United Airlines deal was found by Cheapflights users on 8/18. 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.
Thu 10/25:18 pmHLN - ORD
1 stop5h 41mUnited Airlines
Mon 10/68:49 amORD - HLN
1 stop6h 20mUnited Airlines
Deal found 8/18$491
This Hawaiian Airlines deal was found by Cheapflights users on 8/18. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/44:02 pmHLN - ORD
1 stop7h 01mHawaiian Airlines
Sun 9/78:00 amORD - HLN
1 stop8h 21mHawaiian Airlines
Deal found 8/18$536
This United Airlines deal was found by Cheapflights users on 8/18. 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.
Wed 8/276:30 amHLN - ORD
1 stop15h 12mUnited Airlines
Tue 9/910:56 amORD - HLN
1 stop6h 08mUnited Airlines
Deal found 8/18$547
This Alaska Airlines deal was found by Cheapflights users on 8/18. 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.
Thu 9/44:02 pmHLN - ORD
1 stop7h 01mAlaska Airlines
Sun 9/78:00 amORD - HLN
1 stop8h 21mAlaska Airlines
Deal found 8/18$576
This United Airlines deal was found by Cheapflights users on 8/18. 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.
Thu 8/282:30 pmHLN - ORD
2 stops16h 17mUnited Airlines
Mon 9/13:35 pmORD - HLN
2 stops22h 55mUnited Airlines
Deal found 8/18$633
This Alaska Airlines deal was found by Cheapflights users on 8/18. 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.
Wed 8/274:02 pmHLN - ORD
2 stops20h 07mAlaska Airlines
Tue 9/98:00 amORD - HLN
1 stop8h 21mAlaska Airlines
Deal found 8/18$636
This United Airlines deal was found by Cheapflights users on 8/16. 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.
Fri 8/295:20 pmHLN - ORD
1 stop20h 35mUnited Airlines
Tue 9/28:20 pmORD - HLN
2 stops20h 44mUnited Airlines
Deal found 8/16$676
This United Airlines deal was found by Cheapflights users on 8/17. 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.
Mon 9/15:20 pmHLN - ORD
2 stops18h 49mUnited Airlines
Fri 9/58:20 pmORD - HLN
2 stops26h 54mUnited Airlines
Deal found 8/17$682

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 August 18, 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

Helena

Fly to

O'Hare Intl

Route

Depart

Return

Price

HelenaChicago

HLN - ORD

HLNORD

Helena

Thu 10/2

6:30 am-1:12 pm

1 stop5h 42m

Chicago O'Hare Intl

Mon 10/6

10:53 am-4:40 pm

1 stop6h 47m

$491

HelenaChicago

HLN - ORD

HLNORD

Helena

Thu 9/4

4:02 pm-12:03 am

1 stop7h 01m

Chicago O'Hare Intl

Sat 9/6

6:20 am-3:21 pm

1 stop10h 01m

$536

HelenaChicago

HLN - ORD

HLNORD

Helena

Thu 9/4

4:02 pm-12:03 am

1 stop7h 01m

Chicago O'Hare Intl

Sun 9/7

8:00 am-3:21 pm

1 stop8h 21m

$536

HelenaChicago

HLN - ORD

HLNORD

Helena

Thu 9/4

4:02 pm-12:03 am

1 stop7h 01m

Chicago O'Hare Intl

Sun 9/7

8:00 am-3:21 pm

1 stop8h 21m

$576

HelenaChicago

HLN - ORD

HLNORD

Helena

Thu 8/28

2:30 pm-7:47 am

2 stops16h 17m

Chicago O'Hare Intl

Mon 9/1

3:35 pm-1:30 pm

2 stops22h 55m

$633

HelenaChicago

HLN - ORD

HLNORD

Helena

Fri 8/29

5:20 pm-2:55 pm

1 stop20h 35m

Chicago O'Hare Intl

Tue 9/2

8:20 pm-4:04 pm

2 stops20h 44m

$676

HelenaChicago

HLN - ORD

HLNORD

Helena

Mon 12/22

12:50 pm-9:43 pm

1 stop7h 53m

$259

HelenaChicago

HLN - ORD

HLNORD

Helena

Fri 12/19

2:26 pm-11:00 pm

1 stop7h 34m

$299

HelenaChicago

HLN - ORD

HLNORD

Helena

Fri 8/29

1:00 pm-10:04 pm

1 stop8h 04m

$479

HelenaChicago

HLN - ORD

HLNORD

Helena

Fri 8/29

5:20 pm-11:59 pm

1 stop5h 39m

$479

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/17

Showing 1-10 of 11 results
1
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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, August is the cheapest month in which you can book a flight from Helena to Chicago O'Hare Intl Airport (average of $245). Flying from Helena to Chicago O'Hare Intl Airport in March is currently the most expensive (average of $321). 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.

Reviews of airlines servicing O'Hare Intl

Get insights into the airlines that provide service to O'Hare Intl. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to O'Hare Intl. Reviews last updated August 18, 2025.
Read reviews from past customers who have flown Delta and United Airlines from Helena to Chicago O'Hare Intl Airport. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,981 reviews

Comfort

7.9

Entertainment

7.9

Food

7.3

Crew

8.5

Overall

8.0

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,981 reviews
Delta
8.0
Very good
7,981 reviews

Comfort

7.9

Entertainment

7.9

Food

7.3

Crew

8.5

Overall

8.0

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,925 reviews
Delta
8.0
Very good
7,981 reviews

Comfort

7.9

Entertainment

7.9

Food

7.3

Crew

8.5

Overall

8.0

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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 2 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 Hawaiian Airlines can get you from Helena to Chicago O'Hare Intl Airport in just under 5h 42m. Your travel time can differ by up to 1h 19m. 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.

  • What are the cheapest airlines flying from Helena to Chicago O'Hare Intl Airport round-trip?

    Flying on Delta is currently your cheapest option to Chicago O'Hare Intl Airport, with prices starting at $314. Another option worth looking into is United Airlines, starting at $404 round trip. These flights start at 40% lower than the current average price 3 months from now.

  • 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, August is the cheapest month in which you can book a flight from Helena to Chicago O'Hare Intl Airport (average of $245). Flying from Helena to Chicago O'Hare Intl Airport in March is currently the most expensive (average of $321). 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
Beloit
Hoffman Estates
Skokie
Des Plaines
Elgin
Gurnee
Arlington Heights
Racine
Rockford
Great Lakes
Orland Park
Merrillville
Naperville
Waukegan
Elk Grove Village
Downers Grove
Tinley Park
Evanston

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Top 2 airlines flying from Helena to O'Hare Intl

Discover the top 2 airlines that operate flights from Helena to O'Hare Intl. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated August 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$314Average$396FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$404Average$768FlexibilityNo cancel feeOn-time69%

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