HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Helena

$163+ Cheap flights from Illinois to Helena (HLN)

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 4/1. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — HLN
Jan 27 — Feb 31
Mon 1/27
Mon 2/3
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Illinois to Helena 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 Illinois to Helena

Discover tips and strategies to find the most affordable flight options for your journey from Illinois (USIL) to Helena (HLN). 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 22, 2025.

Round-trip from

$325
(Delta)

One-way from

$258
(Alaska Airlines)
From Illinois to Helena
Search Deals
One-way flight from Illinois to Helena
Search Deals

Find flight deals from Illinois to Helena

Cheapest flights from Illinois to Helena
Explore the most affordable flight options available from Illinois to Helena. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 22, 2025.

This Delta deal was found by Cheapflights users on 1/21. 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.
Tue 2/187:20 amORD - HLN
1 stop6h 30mDelta
Tue 2/255:54 amHLN - ORD
1 stop5h 51mDelta
Deal found 1/21$325
This Alaska Airlines deal was found by Cheapflights users on 1/21. 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 2/197:45 amORD - HLN
1 stop8h 57mAlaska Airlines
Sat 3/14:19 pmHLN - ORD
1 stop6h 40mAlaska Airlines
Deal found 1/21$370
This United Airlines deal was found by Cheapflights users on 1/21. 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 2/197:00 amORD - HLN
1 stop7h 25mUnited Airlines
Wed 2/262:05 pmHLN - ORD
1 stop7h 33mUnited Airlines
Deal found 1/21$405
This Delta deal was found by Cheapflights users on 1/22. 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.
Mon 2/242:08 pmMDW - HLN
2 stops9h 46mDelta
Tue 3/41:30 pmHLN - MDW
2 stops18h 21mDelta
Deal found 1/22$405
This United Airlines deal was found by Cheapflights users on 1/21. 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 7/128:50 amPIA - HLN
1 stop5h 23mUnited Airlines
Sat 7/192:04 pmHLN - PIA
1 stop5h 43mUnited Airlines
Deal found 1/21$485
This Alaska Airlines deal was found by Cheapflights users on 1/22. 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 4/246:30 amSTL - HLN
1 stop13h 19mAlaska Airlines
Sun 4/277:29 pmHLN - STL
1 stop27h 30mAlaska Airlines
Deal found 1/22$564
This Delta deal was found by Cheapflights users on 1/22. 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.
Thu 4/241:41 pmSTL - HLN
2 stops9h 54mDelta
Sun 4/275:45 amHLN - STL
1 stop6h 36mDelta
Deal found 1/22$582
This United Airlines deal was found by Cheapflights users on 1/22. 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 2/68:27 amSTL - HLN
1 stop6h 14mUnited Airlines
Mon 2/102:25 pmHLN - STL
1 stop21h 23mUnited Airlines
Deal found 1/22$650
This Delta deal was found by Cheapflights users on 1/21. 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.
Tue 7/156:01 amBMI - HLN
2 stops17h 32mDelta
Sat 7/191:03 pmHLN - BMI
2 stops32h 20mDelta
Deal found 1/21$840

Find flights from Illinois to Helena within your budget

Customize your flight search to find flights from Illinois to Helena 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 22, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

ChicagoHelena

ORD - HLN

ORDHLN

Chicago O'Hare Intl

Mon 2/24

7:20 am-12:50 pm

1 stop6h 30m

Helena

Tue 3/4

5:54 am-12:45 pm

1 stop5h 51m

$335

ChicagoHelena

ORD - HLN

ORDHLN

Chicago O'Hare Intl

Mon 2/24

7:45 am-3:42 pm

1 stop8h 57m

Helena

Tue 3/4

4:19 pm-11:59 pm

1 stop6h 40m

$380

ChicagoHelena

MDW - HLN

MDWHLN

Chicago Midway

Mon 2/24

2:08 pm-10:54 pm

2 stops9h 46m

Helena

Tue 3/4

1:30 pm-8:51 am

2 stops18h 21m

$405

PeoriaHelena

PIA - HLN

PIAHLN

Greater Peoria

Sat 7/12

8:50 am-1:13 pm

1 stop5h 23m

Helena

Sat 7/19

2:04 pm-8:47 pm

1 stop5h 43m

$485

St. LouisHelena

STL - HLN

STLHLN

Lambert-St Louis

Wed 2/5

7:40 am-12:50 pm

1 stop6h 10m

Helena

Sun 2/9

1:30 pm-9:33 pm

1 stop7h 03m

$547

St. LouisHelena

STL - HLN

STLHLN

Lambert-St Louis

Wed 2/5

8:00 am-9:36 pm

2 stops14h 36m

Helena

Sun 2/9

2:25 pm-3:38 pm

2 stops24h 13m

$576

BloomingtonHelena

BMI - HLN

BMIHLN

Bloomington-Normal

Tue 7/15

6:01 am-10:33 pm

2 stops17h 32m

Helena

Sat 7/19

1:03 pm-10:23 pm

2 stops32h 20m

$840

St. LouisHelena

STL - HLN

STLHLN

Lambert-St Louis

Thu 4/10

5:26 am-3:39 pm

2 stops11h 13m

Helena

Sun 4/13

4:19 pm-9:35 am

2 stops16h 16m

$852

St. LouisHelena

STL - HLN

STLHLN

Lambert-St Louis

Tue 4/1

7:40 am-12:35 pm

1 stop5h 55m

$163

St. LouisHelena

STL - HLN

STLHLN

Lambert-St Louis

Tue 4/1

9:39 am-9:25 pm

2 stops12h 46m

$208

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/21

Showing 1-10 of 11 results
1
2

Best time to book a flight from Illinois to Helena

Have a flexible travel schedule? Discover the best time to fly to Helena from Illinois 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.

Travel insights for flights from Illinois to Helena

Get recent, data-driven insights about flights from Illinois to Helena including ideal travel times, pricing trends, and more.

What is the cheapest month to book a flight from Illinois to Helena?

Currently, February is the cheapest month in which you can book a flight from Illinois to Helena (average of $353). Flying from Illinois to Helena in July is currently the most expensive (average of $638). 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.

What is the cheapest time of day to fly from IL to HLN?

Find hourly flight availability from Illinois to Helena. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated January 22, 2025.

When flying from Illinois to Helena, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Rainfall in Helena by month

Plan your trip to Helena by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Helena ranges from 0.3 - 2.1 inches per month. June is typically the wettest month, when rainfall can reach 2.1 in. February is typically the driest time to visit Helena when rainfall is around 0.3 in.

Temperature in Helena by month

Plan your trip to Helena by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Helena, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 69.8 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 21.2 F).

Reviews of airlines servicing Helena

Get insights into the airlines that provide service to Helena. 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 Helena. Reviews last updated January 22, 2025.
Read through reviews of airlines operating flights from Illinois to Helena, such as United Airlines, Alaska Airlines and Delta. 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.
Alaska Airlines
8.0
Very good
9,707 reviews

Boarding

8.2

Overall

8.0

Entertainment

7.1

Comfort

7.9

Crew

8.5

Food

7.1

Reviews

1 / 10

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Alaska Airlines
8.0
Very good
9,707 reviews
Alaska Airlines
8.0
Very good
9,707 reviews

Boarding

8.2

Overall

8.0

Entertainment

7.1

Comfort

7.9

Crew

8.5

Food

7.1

Reviews

1 / 10

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Delta
8.0
Very good
8,514 reviews
Alaska Airlines
8.0
Very good
9,707 reviews

Boarding

8.2

Overall

8.0

Entertainment

7.1

Comfort

7.9

Crew

8.5

Food

7.1

Reviews

1 / 10

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

United Airlines
7.4
Good
8,975 reviews
Alaska Airlines
8.0
Very good
9,707 reviews

Boarding

8.2

Overall

8.0

Entertainment

7.1

Comfort

7.9

Crew

8.5

Food

7.1

Reviews

1 / 10

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Related info for your journey

Find useful and relevant information for your journey from Illinois to Helena. 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 into for flights to Helena from Illinois?

    For a flight from Illinois to Helena, you will be flying into Helena. Helena (HLN) is just 2.7 mi from the center of the city.

  • What are the most popular routes from Illinois to Helena?

    When deciding which route to take from Illinois to Helena consider Chicago O'Hare Intl - Helena, Chicago Midway - Helena or Greater Peoria - Helena as they are the most popular.

  • Can I find deals for flights from Illinois to Helena that include hotel bookings?

    Yes. In addition to deals on Illinois to Helena flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Illinois to Helena?

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

  • Can I find deals for business class flights from Illinois to Helena?

    Yes. Cheapflights offers flight deals from Illinois to Helena 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 Illinois to Helena?

    Currently, February is the cheapest month in which you can book a flight from Illinois to Helena (average of $353). Flying from Illinois to Helena in July is currently the most expensive (average of $638). 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

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.

Alternative routes for Illinois to Helena

See prices for flight routes from nearby airports that may be better suited for you.
Newark to Bozeman flights
O'Hare Intl to Bozeman flights
John F Kennedy Intl to Bozeman flights
San Francisco to Bozeman flights
LaGuardia to Bozeman flights
Boston to Bozeman flights
Atlanta to Bozeman flights
Los Angeles to Bozeman flights
Dulles Intl to Bozeman flights
Minneapolis to Bozeman flights
Seattle to Bozeman flights
Reagan-National to Bozeman flights
Dallas/Fort Worth to Bozeman flights
Baltimore to Bozeman flights
Denver to Bozeman flights
O'Hare Intl to Kalispell flights
Minneapolis to Kalispell flights
John F Kennedy Intl to Kalispell flights
Newark to Kalispell flights
Philadelphia to Bozeman flights
Midway to Bozeman flights
Detroit to Bozeman flights
Charlotte to Bozeman flights
Dallas/Fort Worth to Kalispell flights
Los Angeles to Kalispell flights
Denver to Kalispell flights
Seattle to Billings flights
LaGuardia to Kalispell flights
Minneapolis to Missoula flights
Raleigh to Bozeman flights
San Diego to Bozeman flights
Cincinnati to Bozeman flights
San Francisco to Kalispell flights
Orlando to Bozeman flights
Sky Harbor Intl to Bozeman flights
John F Kennedy Intl to Missoula flights
Newark to Missoula flights
Santa Ana to Bozeman flights
Ontario to Bozeman flights
Seattle to Kalispell flights
Tampa to Bozeman flights
Nashville to Kalispell flights
San Francisco to Missoula flights
Dallas/Fort Worth to Billings flights
Hobby to Bozeman flights
Tampa to Kalispell flights
Boston to Kalispell flights
Milwaukee to Bozeman flights
Dulles Intl to Kalispell flights
Love Field to Bozeman flights

Top airline flying from Illinois to Helena

Discover the top airline that operate flights from Illinois to Helena. 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 January 22, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$368Average$567FlexibilityNo cancel feeOn-time69%
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.