HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
O'Hare Intl

$342+ Cheap flights from Helena (HLN) to O'Hare Intl (ORD)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/27. Fares are subject to change and may not be available on all flights or dates of travel.
HLN — ORD
Nov 6 — Nov 131
Thu 11/6
Thu 11/13
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Helena to O'Hare Intl with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 October 7, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$342
(Hawaiian Airlines)

Popular in

June

Cheapest in

September

Average price

$434
Provider with most accurate pricing for Helena-Chicago O'Hare Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Helena-Chicago O'Hare Intl flights.
Search Deals
From Helena to Chicago O'Hare Intl
Search Deals
Highest demand for flights based on searches. 30% potential increase in price ($210 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 10% potential price decrease ($44 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
Search Deals

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 October 7, 2025.

This United Airlines deal was found by Cheapflights users on 10/6. 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 12/22:30 pmHLN - ORD
1 stop8h 29mUnited Airlines
Tue 12/92:40 pmORD - HLN
1 stop7h 42mUnited Airlines
Deal found 10/6$353
This Alaska Airlines deal was found by Cheapflights users on 10/6. 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 12/236:32 pmHLN - ORD
1 stop21h 40mAlaska Airlines
Wed 12/316:08 pmORD - HLN
1 stop24h 47mAlaska Airlines
Deal found 10/6$500
This Alaska Airlines deal was found by Cheapflights users on 10/6. 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.
Sat 11/227:32 pmHLN - ORD
1 stop9h 56mAlaska Airlines
Fri 11/286:00 amORD - HLN
1 stop13h 52mAlaska Airlines
Deal found 10/6$506
This United Airlines deal was found by Cheapflights users on 10/6. 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 11/226:40 amHLN - ORD
1 stop16h 19mUnited Airlines
Thu 11/271:55 pmORD - HLN
2 stops24h 32mUnited Airlines
Deal found 10/6$524
This United Airlines deal was found by Cheapflights users on 10/7. 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 12/232:26 pmHLN - ORD
1 stop8h 33mUnited Airlines
Wed 12/317:10 amORD - HLN
1 stop7h 35mUnited Airlines
Deal found 10/7$538
This United Airlines deal was found by Cheapflights users on 10/5. 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 10/205:18 pmHLN - ORD
1 stop17h 10mUnited Airlines
Fri 10/248:30 pmORD - HLN
2 stops26h 44mUnited Airlines
Deal found 10/5$577

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 October 7, 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

Fri 2/27

4:10 pm-11:59 pm

1 stop6h 49m

Chicago O'Hare Intl

Mon 3/2

7:45 am-3:43 pm

1 stop8h 58m

$342

HelenaChicago

HLN - ORD

HLNORD

Helena

Tue 12/2

2:30 pm-11:59 pm

1 stop8h 29m

Chicago O'Hare Intl

Tue 12/9

2:40 pm-9:22 pm

1 stop7h 42m

$353

HelenaChicago

HLN - ORD

HLNORD

Helena

Fri 2/27

4:10 pm-1:04 pm

1 stop19h 54m

Chicago O'Hare Intl

Mon 3/2

2:00 pm-3:43 pm

1 stop26h 43m

$403

HelenaChicago

HLN - ORD

HLNORD

Helena

Fri 2/27

12:50 pm-11:44 pm

2 stops9h 54m

Chicago O'Hare Intl

Mon 3/2

7:15 am-12:27 pm

1 stop6h 12m

$431

HelenaChicago

HLN - ORD

HLNORD

Helena

Tue 12/23

6:32 pm-5:12 pm

1 stop21h 40m

Chicago O'Hare Intl

Wed 12/31

6:08 pm-5:55 pm

1 stop24h 47m

$500

HelenaChicago

HLN - ORD

HLNORD

Helena

Tue 10/14

2:44 pm-10:39 pm

1 stop6h 55m

$489

HelenaChicago

HLN - ORD

HLNORD

Helena

Wed 10/15

2:44 pm-10:39 pm

1 stop6h 55m

$489

HelenaChicago

HLN - ORD

HLNORD

Helena

Wed 10/15

1:00 pm-11:58 pm

2 stops9h 58m

$504

HelenaChicago

HLN - ORD

HLNORD

Helena

Tue 10/14

1:00 pm-11:58 pm

2 stops9h 58m

$555

HelenaChicago

HLN - ORD

HLNORD

Helena

Mon 10/13

2:44 pm-11:59 pm

1 stop8h 15m

$569

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/7

Showing 1-10 of 11 results
1
2

Compare providers for flights from Helena to O'Hare Intl

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Helena to O'Hare Intl in October.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Helena-Chicago O'Hare Intl Airport flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Helena-Chicago O'Hare Intl Airport flight deals on Cheapflights vs. eDreams >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 eDreams the most. eDreams 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 December is currently the most expensive (average of $335). 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 October 7, 2025.
Read reviews from past customers who have flown Delta 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
7,969 reviews

Crew

8.5

Overall

8.0

Comfort

7.9

Food

7.3

Boarding

8.2

Entertainment

7.9

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
7,969 reviews
Delta
8.0
Very good
7,969 reviews

Crew

8.5

Overall

8.0

Comfort

7.9

Food

7.3

Boarding

8.2

Entertainment

7.9

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 1 airline has 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?

    Hawaiian Airlines, United Airlines, and Alaska Airlines can get you from Helena to Chicago O'Hare Intl Airport in just under 6h 49m. Your travel time can differ by up to 13h 05m. 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 is the cheapest airline to fly 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.

  • 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 December is currently the most expensive (average of $335). 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
Skokie
Des Plaines
Gurnee
Hoffman Estates
Elgin
Racine
Rockford
Oak Brook
Elk Grove Village
Beloit
Naperville
Downers Grove
Orland Park
Merrillville
Bridgeview
Warrenville
Joliet
Waukegan

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top airline flying from Helena to O'Hare Intl

Discover the top airline 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 October 7, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$314Average$354FlexibilityNo cancel feeOn-timeN/A

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.