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Helena

$165+ 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 5/27. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — HLN
juny 8 — juny 151
dl. 6/8
dl. 6/15
1 adult, Economy
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Cheap 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 maig 9, 2026.

This Expedia deal was found by Cheapflights users on 5/6. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dt. 9/158:42 pm
ORD
-
HLN
1 stop20h 59m
Alaska Airlines
dt. 9/225:18 pm
HLN
-
ORD
1 stop12h 04m
Alaska Airlines
Deal found 5/6$329
This Delta deal was found by Cheapflights users on 5/5. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dv. 6/52:00 pm
ORD
-
HLN
2 stops9h 33m
Delta
dl. 6/85:35 am
HLN
-
ORD
1 stop5h 25m
Delta
Deal found 5/5$334
This Delta deal was found by Cheapflights users on 5/8. 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.
dt. 9/156:00 am
ORD
-
HLN
2 stops7h 23m
Delta
dt. 9/2212:50 pm
HLN
-
ORD
1 stop8h 08m
Delta
Deal found 5/8$369
This Expedia deal was found by Cheapflights users on 5/7. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ds. 5/307:49 pm
ORD
-
HLN
1 stop21h 17m
Alaska Airlines
dv. 6/54:43 pm
HLN
-
ORD
1 stop12h 37m
Alaska Airlines
Deal found 5/7$384
This Delta deal was found by Cheapflights users on 5/4. 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.
dv. 8/148:00 am
STL
-
HLN
1 stop5h 15m
Delta
dl. 8/175:35 am
HLN
-
STL
1 stop6h 59m
Delta
Deal found 5/4$394
This United Airlines deal was found by Cheapflights users on 5/6. 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.
dc. 5/276:00 am
ORD
-
HLN
1 stop8h 33m
United Airlines
ds. 5/302:20 pm
HLN
-
ORD
1 stop6h 19m
United Airlines
Deal found 5/6$419
This Alaska Airlines deal was found by Cheapflights users on 5/5. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dv. 6/57:49 pm
ORD
-
HLN
1 stop21h 17m
Alaska Airlines
dl. 6/84:43 pm
HLN
-
ORD
1 stop12h 37m
Alaska Airlines
Deal found 5/5$428
This Expedia deal was found by Cheapflights users on 5/6. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dc. 6/37:40 am
ORD
-
HLN
1 stop9h 26m
Alaska Airlines
dc. 6/105:09 pm
HLN
-
ORD
1 stop12h 11m
Alaska Airlines
Deal found 5/6$434
This Delta deal was found by Cheapflights users on 5/6. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dj. 7/27:45 am
ORD
-
HLN
1 stop5h 35m
Delta
dt. 7/75:40 am
HLN
-
ORD
2 stops10h 19m
Delta
Deal found 5/6$448
This Delta deal was found by Cheapflights users on 5/5. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dc. 7/2912:09 pm
BMI
-
HLN
2 stops11h 30m
Delta
dl. 8/35:35 am
HLN
-
BMI
2 stops9h 06m
Delta
Deal found 5/5$462
This Delta deal was found by Cheapflights users on 5/5. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dj. 7/3012:09 pm
BMI
-
HLN
2 stops11h 30m
Delta
dl. 8/35:35 am
HLN
-
BMI
2 stops9h 06m
Delta
Deal found 5/5$472
This United Airlines deal was found by Cheapflights users on 5/5. 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.
dc. 5/202:35 pm
STL
-
HLN
1 stop8h 11m
United Airlines
dg. 5/246:15 am
HLN
-
STL
1 stop5h 27m
United Airlines
Deal found 5/5$499

Find flight deals from Illinois to Helena

Keep the following information in mind while searching for Illinois to Helena flight deals. Data was last updated maig 9, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$329
(Expedia)

One-way from

$165
(Alaska Airlines)
Provider with most accurate pricing for Chicago (CHI)-Helena flight deals.
Search Deals
Provider most trusted by Cheapflights users for Chicago (CHI)-Helena flights.
Search Deals
From Illinois to Helena
Search Deals
One-way flight from Illinois to Helena
Search Deals

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 maig 9, 2026.
Use the filters below to find and compare flights from Illinois to Helena that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

ChicagoHelena

ORD - HLN

ORDHLN

Chicago O'Hare Intl

dv. 6/5

2:00 pm-10:33 pm

2 stops9h 33m

Helena

dl. 6/8

5:35 am-12:00 pm

1 stop5h 25m

$334

ChicagoHelena

ORD - HLN

ORDHLN

Chicago O'Hare Intl

dj. 7/9

3:55 pm-10:39 pm

2 stops7h 44m

Helena

dt. 7/14

5:40 am-11:59 am

1 stop5h 19m

$334

St. LouisHelena

STL - HLN

STLHLN

Lambert-St Louis

dv. 8/14

8:00 am-12:15 pm

1 stop5h 15m

Helena

dl. 8/17

5:35 am-1:34 pm

1 stop6h 59m

$394

ChicagoHelena

ORD - HLN

ORDHLN

Chicago O'Hare Intl

dc. 5/27

6:00 am-1:33 pm

1 stop8h 33m

Helena

ds. 5/30

2:20 pm-9:39 pm

1 stop6h 19m

$419

ChicagoHelena

ORD - HLN

ORDHLN

Chicago O'Hare Intl

dv. 6/5

7:49 pm-4:06 pm

1 stop21h 17m

Helena

dl. 6/8

4:43 pm-6:20 am

1 stop12h 37m

$428

ChicagoHelena

ORD - HLN

ORDHLN

Chicago O'Hare Intl

dv. 7/24

8:20 pm-4:32 pm

1 stop21h 12m

Helena

dt. 7/28

5:09 pm-8:32 pm

2 stops26h 23m

$479

St. LouisHelena

STL - HLN

STLHLN

Lambert-St Louis

dc. 5/20

2:35 pm-9:46 pm

1 stop8h 11m

Helena

dg. 5/24

6:15 am-3:46 pm

2 stops8h 31m

$505

ChicagoHelena

ORD - HLN

ORDHLN

Chicago O'Hare Intl

dj. 7/9

6:42 pm-4:32 pm

1 stop22h 50m

Helena

dt. 7/14

5:09 pm-6:20 am

1 stop12h 11m

$527

ChicagoHelena

ORD - HLN

ORDHLN

Chicago O'Hare Intl

dj. 5/21

7:45 am-12:23 pm

1 stop5h 38m

Helena

dl. 5/25

1:03 pm-9:50 pm

1 stop7h 47m

$535

St. LouisHelena

STL - HLN

STLHLN

Lambert-St Louis

dg. 8/2

7:56 pm-4:32 pm

1 stop21h 36m

Helena

dj. 8/6

5:09 pm-1:52 pm

1 stop19h 43m

$588

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/4

Showing 1-10 of 44 resultsSorted by cheapest first
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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
No data available for this route at this time. Please check back soon.

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.

  • How long is the flight from Illinois to Helena?

    A quick flight from Illinois to Helena can take about 8h 33m. Delta provides one of the quickest options available for as low as $419. The distance between Illinois and Helena is about 1227 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • 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, Greater Peoria - 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.

See more FAQs

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