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Helena

$199+ 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 6/13. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — HLN
May 6 — May 131
Tue 5/6
Tue 5/13
1 adult, Economy
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Cheap flight deals from Illinois to Helena

Keep the following information in mind while searching for Illinois to Helena flight deals. Data was last updated May 1, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$335
(Hawaiian Airlines)

One-way from

$199
(Delta)
Provider with most accurate pricing for Chicago (CHI)-Helena flight deals.
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Provider most trusted by Cheapflights users for Chicago (CHI)-Helena flights.
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From Illinois to Helena
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One-way flight from Illinois to Helena
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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 May 1, 2025.

This Hawaiian Airlines deal was found by Cheapflights users on 5/1. 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.
Sat 5/318:00 amORD - HLN
1 stop8h 31mHawaiian Airlines
Sat 6/74:11 pmHLN - ORD
1 stop6h 48mHawaiian Airlines
Deal found 5/1$335
This Delta deal was found by Cheapflights users on 4/30. 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.
Wed 6/112:15 pmSTL - HLN
2 stops9h 43mDelta
Tue 6/175:44 amHLN - STL
1 stop6h 46mDelta
Deal found 4/30$342
This Delta deal was found by Cheapflights users on 4/30. 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.
Sat 5/317:30 amORD - HLN
1 stop5h 51mDelta
Sat 6/75:45 amHLN - ORD
1 stop7h 25mDelta
Deal found 4/30$347
This United Airlines deal was found by Cheapflights users on 5/1. 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 5/318:45 amPIA - HLN
2 stops9h 10mUnited Airlines
Sat 6/76:20 amHLN - PIA
2 stops9h 22mUnited Airlines
Deal found 5/1$363
This Alaska Airlines deal was found by Cheapflights users on 5/1. 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 5/312:04 pmORD - HLN
2 stops26h 27mAlaska Airlines
Sat 6/74:11 pmHLN - ORD
1 stop6h 48mAlaska Airlines
Deal found 5/1$380
This United Airlines deal was found by Cheapflights users on 5/1. 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.
Sun 6/18:10 amSTL - HLN
2 stops9h 45mUnited Airlines
Sat 6/76:20 amHLN - STL
1 stop5h 26mUnited Airlines
Deal found 5/1$431
This Delta deal was found by Cheapflights users on 4/30. 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.
Sat 5/311:08 pmMDW - HLN
2 stops10h 08mDelta
Sat 6/75:45 amHLN - MDW
2 stops11h 02mDelta
Deal found 4/30$528
This United Airlines deal was found by Cheapflights users on 5/1. 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.
Sun 6/13:40 pmORD - HLN
2 stops23h 22mUnited Airlines
Sat 6/75:39 pmHLN - ORD
2 stops15h 05mUnited Airlines
Deal found 5/1$573
This Alaska Airlines deal was found by Cheapflights users on 4/30. 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 7/27:32 pmSTL - HLN
1 stop20h 59mAlaska Airlines
Sun 7/64:09 pmHLN - STL
2 stops16h 09mAlaska Airlines
Deal found 4/30$2,030

Cheapflights Fare Finder

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 May 1, 2025.
Use the filters below to find and compare flights from Illinois to Helena that are best for you.

Fly from

Illinois

Fly to

Helena

Route

Depart

Return

Price

ChicagoHelena

ORD - HLN

ORDHLN

Chicago O'Hare Intl

Sat 5/31

8:00 am-3:31 pm

1 stop8h 31m

Helena

Sat 6/7

4:11 pm-11:59 pm

1 stop6h 48m

$335

St. LouisHelena

STL - HLN

STLHLN

Lambert-St Louis

Wed 6/11

2:15 pm-10:58 pm

2 stops9h 43m

Helena

Tue 6/17

5:44 am-1:30 pm

1 stop6h 46m

$342

ChicagoHelena

ORD - HLN

ORDHLN

Chicago O'Hare Intl

Sat 5/31

7:30 am-12:21 pm

1 stop5h 51m

Helena

Sat 6/7

5:45 am-2:10 pm

1 stop7h 25m

$347

PeoriaHelena

PIA - HLN

PIAHLN

Greater Peoria

Sat 5/31

8:45 am-4:55 pm

2 stops9h 10m

Helena

Sat 6/7

6:20 am-4:42 pm

2 stops9h 22m

$363

ChicagoHelena

ORD - HLN

ORDHLN

Chicago O'Hare Intl

Sat 5/31

2:04 pm-3:31 pm

2 stops26h 27m

Helena

Sat 6/7

4:11 pm-11:59 pm

1 stop6h 48m

$380

St. LouisHelena

STL - HLN

STLHLN

Lambert-St Louis

Sun 6/1

8:10 am-4:55 pm

2 stops9h 45m

Helena

Sat 6/7

6:20 am-12:46 pm

1 stop5h 26m

$431

ChicagoHelena

MDW - HLN

MDWHLN

Chicago Midway

Sat 5/31

1:08 pm-10:16 pm

2 stops10h 08m

Helena

Sat 6/7

5:45 am-5:47 pm

2 stops11h 02m

$528

ChicagoHelena

ORD - HLN

ORDHLN

Chicago O'Hare Intl

Sun 6/1

3:40 pm-2:02 pm

2 stops23h 22m

Helena

Sat 6/7

5:39 pm-9:44 am

2 stops15h 05m

$573

St. LouisHelena

STL - HLN

STLHLN

Lambert-St Louis

Wed 7/2

7:32 pm-3:31 pm

1 stop20h 59m

Helena

Sun 7/6

4:09 pm-9:18 am

2 stops16h 09m

$2,030

ChicagoHelena

ORD - HLN

ORDHLN

Chicago O'Hare Intl

Fri 6/13

7:40 am-12:27 pm

1 stop5h 47m

$199

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/30

Showing 1-10 of 13 results
1
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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.

Cheapflights Insights

Everything you need to know about your flight from Illinois to Helena

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 $597). 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 May 1, 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 May 1, 2025.
Read through reviews of airlines operating flights from Illinois to Helena, such as Alaska Airlines, Delta and Hawaiian Airlines. 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
9,972 reviews

Crew

8.5

Boarding

8.1

Entertainment

7.1

Food

7.1

Overall

8.0

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
9,972 reviews
Alaska Airlines
8.0
Very good
9,972 reviews

Crew

8.5

Boarding

8.1

Entertainment

7.1

Food

7.1

Overall

8.0

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,934 reviews
Alaska Airlines
8.0
Very good
9,972 reviews

Crew

8.5

Boarding

8.1

Entertainment

7.1

Food

7.1

Overall

8.0

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Hawaiian Airlines
7.9
Good
2,409 reviews
Alaska Airlines
8.0
Very good
9,972 reviews

Crew

8.5

Boarding

8.1

Entertainment

7.1

Food

7.1

Overall

8.0

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,696 reviews
Alaska Airlines
8.0
Very good
9,972 reviews

Crew

8.5

Boarding

8.1

Entertainment

7.1

Food

7.1

Overall

8.0

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

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 cheapest airlines to fly from Illinois to Helena one-way?

    To fly one-way, consider booking your trip with Delta, which is currently one of the cheapest options available, starting at $199. United Airlines flights start at $235 while deals on Alaska Airlines start at $239 one-way.

  • 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 Lambert-St Louis - 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 $597). 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

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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 May 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$534Average$766FlexibilityNo cancel feeOn-time69%

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