$270+ Cheap flights from Helena (HLN) to Illinois
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 10/29. Fares are subject to change and may not be available on all flights or dates of travel.
HLN — ORD
Nov 11 — Nov 181
Round-trip
1 adult, Economy
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Cheapest flights from Helena to IllinoisExplore the most affordable flight options available from Helena to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 12, 2026.
Explore the most affordable flight options available from Helena to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 12, 2026.
This Delta deal was found by Cheapflights users on 10/11. 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.
Fri 11/61:08 pm -
1 stop7h 57m
Sun 11/87:35 am -
1 stop5h 53m
Deal found 10/11![Delta logo]()
$389
This Delta deal was found by Cheapflights users on 10/12. 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 10/281:08 pm -
1 stop7h 57m
Mon 11/27:35 am -
1 stop5h 53m
Deal found 10/12![Delta logo]()
$394
This United Airlines deal was found by Cheapflights users on 10/12. 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 10/276:28 am -
1 stop7h 27m
Sat 10/312:30 pm -
1 stop8h 01m
Deal found 10/12![United Airlines logo]()
$429
This Delta deal was found by Cheapflights users on 10/12. 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 10/271:08 pm -
1 stop7h 57m
Sat 10/311:55 pm -
2 stops9h 34m
Deal found 10/12![Delta logo]()
$434
This Alaska 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/144:41 pm -
1 stop21h 19m
Tue 11/179:30 am -
1 stop7h 34m
Deal found 10/7![Alaska Airlines logo]()
$446
This United Airlines deal was found by Cheapflights users on 10/8. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/12:23 pm -
1 stop6h 07m
Sun 11/87:00 am -
1 stop7h 40m
Deal found 10/8![United Airlines logo]()
$448
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.
Thu 12/172:27 pm -
1 stop7h 15m
Thu 12/243:40 pm -
1 stop6h 57m
Deal found 10/7![United Airlines logo]()
$463
This Delta deal was found by Cheapflights users on 10/8. 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.
Thu 10/151:08 pm -
1 stop7h 57m
Mon 10/197:35 am -
1 stop5h 53m
Deal found 10/8![Delta logo]()
$499
This United Airlines deal was found by Cheapflights users on 10/11. 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 11/92:23 pm -
1 stop8h 36m
Mon 11/163:56 pm -
1 stop6h 35m
Deal found 10/11![United Airlines logo]()
$508
This United Airlines deal was found by Cheapflights users on 10/9. 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 10/242:30 pm -
1 stop5h 21m
Wed 10/286:25 am -
2 stops8h 15m
Deal found 10/9![United Airlines logo]()
$514
This United Airlines deal was found by Cheapflights users on 10/9. 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 12/32:35 pm -
1 stop5h 11m
Sun 12/68:40 am -
1 stop6h 12m
Deal found 10/9![United Airlines logo]()
$668
Best flights from Helena to IllinoisDiscover carefully curated flight deals from Helena to Illinois that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 12, 2026.
Discover carefully curated flight deals from Helena to Illinois that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 12, 2026.
This Delta deal was found by Cheapflights users on 10/12. 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 10/271:08 pm -
1 stop7h 57m
Sat 10/317:35 am -
1 stop5h 53m
Deal found 10/12![Delta logo]()
$429
This United Airlines deal was found by Cheapflights users on 10/12. 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 10/276:28 am -
1 stop7h 27m
Sat 10/312:30 pm -
1 stop8h 01m
Deal found 10/12![United Airlines logo]()
$429
This Alaska 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/144:41 pm -
1 stop21h 19m
Tue 11/179:30 am -
1 stop7h 34m
Deal found 10/7![Alaska Airlines logo]()
$446
This United Airlines deal was found by Cheapflights users on 10/8. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/12:23 pm -
1 stop6h 07m
Sun 11/87:00 am -
1 stop7h 40m
Deal found 10/8![United Airlines logo]()
$448
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.
Thu 12/172:27 pm -
1 stop7h 15m
Thu 12/243:40 pm -
1 stop6h 57m
Deal found 10/7![United Airlines logo]()
$463
This Delta deal was found by Cheapflights users on 10/11. 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.
Fri 11/61:08 pm -
2 stops9h 49m
Sun 11/87:35 am -
1 stop5h 53m
Deal found 10/11![Delta logo]()
$534
This United Airlines deal was found by Cheapflights users on 10/9. 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 1/236:15 am -
1 stop6h 06m
Wed 1/274:15 pm -
1 stop6h 17m
Deal found 10/9![United Airlines logo]()
$469
This United Airlines deal was found by Cheapflights users on 10/9. 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 10/242:30 pm -
1 stop5h 21m
Wed 10/286:25 am -
2 stops8h 15m
Deal found 10/9![United Airlines logo]()
$514
This United Airlines deal was found by Cheapflights users on 10/8. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/146:28 am -
2 stops11h 17m
Tue 11/178:40 am -
1 stop6h 00m
Deal found 10/8![United Airlines logo]()
$552
This United Airlines deal was found by Cheapflights users on 10/9. 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 12/32:35 pm -
1 stop5h 11m
Sun 12/68:40 am -
1 stop6h 12m
Deal found 10/9![United Airlines logo]()
$668
Last-minute flights from Helena to IllinoisDiscover last-minute flight deals from Helena to Illinois. Data last updated October 12, 2026 and is based on user searches.
Discover last-minute flight deals from Helena to Illinois. Data last updated October 12, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 10/8. 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.
Thu 10/151:08 pm -
1 stop7h 57m
Mon 10/197:35 am -
1 stop5h 53m
Deal found 10/8![Delta logo]()
$499
This United Airlines deal was found by Cheapflights users on 10/9. 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 10/242:30 pm -
1 stop5h 21m
Wed 10/286:25 am -
2 stops8h 15m
Deal found 10/9![United Airlines logo]()
$514
This United Airlines deal was found by Cheapflights users on 10/12. 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 10/276:28 am -
1 stop7h 27m
Sat 10/312:30 pm -
1 stop8h 01m
Deal found 10/12![United Airlines logo]()
$429
This Delta deal was found by Cheapflights users on 10/12. 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 10/271:08 pm -
1 stop7h 57m
Sat 10/311:55 pm -
2 stops9h 34m
Deal found 10/12![Delta logo]()
$434
This Delta deal was found by Cheapflights users on 10/12. 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 10/281:08 pm -
1 stop7h 57m
Mon 11/27:35 am -
1 stop5h 53m
Deal found 10/12![Delta logo]()
$394
This United Airlines deal was found by Cheapflights users on 10/8. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/12:23 pm -
1 stop6h 07m
Sun 11/87:00 am -
1 stop7h 40m
Deal found 10/8![United Airlines logo]()
$448
This Delta deal was found by Cheapflights users on 10/11. 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.
Fri 11/61:08 pm -
1 stop7h 57m
Sun 11/87:35 am -
1 stop5h 53m
Deal found 10/11![Delta logo]()
$389
This United Airlines deal was found by Cheapflights users on 10/11. 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 11/92:23 pm -
1 stop8h 36m
Mon 11/163:56 pm -
1 stop6h 35m
Deal found 10/11![United Airlines logo]()
$508
This Alaska 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/144:41 pm -
1 stop21h 19m
Tue 11/179:30 am -
1 stop7h 34m
Deal found 10/7![Alaska Airlines logo]()
$446
One-way flights from Helena to IllinoisSearch for one-way flight options from Helena to Illinois. Find affordable one-way fares based on user searches. Data last updated October 12, 2026.
Search for one-way flight options from Helena to Illinois. Find affordable one-way fares based on user searches. Data last updated October 12, 2026.
This Travelocity deal was found by Cheapflights users on 10/8. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/295:26 pm -
1 stop11h 14m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/8![Alaska Airlines logo]()
$270
This Delta deal was found by Cheapflights users on 10/8. 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.
Thu 10/291:08 pm -
2 stops9h 49m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/8![Delta logo]()
$344
This United Airlines deal was found by Cheapflights users on 10/8. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/126:28 am -
2 stops9h 19m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/8![United Airlines logo]()
$625
This Kiwi.com deal was found by Cheapflights users on 10/8. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/295:26 pm -
3 stops47h 50m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/8![Multiple Airlines logo]()
$675
Find flight deals from Helena to Illinois
Keep the following information in mind while searching for Helena to Illinois flight deals. Data was last updated October 12, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $389 (Delta) |
One-way from | $270 (Travelocity) |
Cheapflights Fare Finder
Customize your flight search to find flights from Helena to Illinois 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 7,457,451 searches. Data last updated October 12, 2026.
Use the filters below to find and compare flights from Helena to Illinois that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
HelenaChicago
HLN Helena - ORD Chicago O'Hare Intl
HLNORD
Helena
Thu 10/29
5:26 pm-5:40 am
1 stop11h 14m
Chicago O'Hare Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$270
HelenaChicago
HLN Helena - ORD Chicago O'Hare Intl
HLNORD
Helena
Thu 10/29
1:08 pm-11:57 pm
2 stops9h 49m
Chicago O'Hare Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$344
HelenaChicago
HLN Helena - ORD Chicago O'Hare Intl
HLNORD
Helena
Tue 10/27
1:08 pm-10:05 pm
1 stop7h 57m
Chicago O'Hare Intl
Sat 10/31
7:35 am-12:28 pm
1 stop5h 53m
$429
HelenaChicago
HLN Helena - ORD Chicago O'Hare Intl
HLNORD
Helena
Tue 10/27
6:28 am-2:55 pm
1 stop7h 27m
Chicago O'Hare Intl
Sat 10/31
2:30 pm-9:31 pm
1 stop8h 01m
$429
HelenaChicago
HLN Helena - ORD Chicago O'Hare Intl
HLNORD
Helena
Sat 11/14
4:41 pm-3:00 pm
1 stop21h 19m
Chicago O'Hare Intl
Tue 11/17
9:30 am-4:04 pm
1 stop7h 34m
$446
HelenaChicago
HLN Helena - ORD Chicago O'Hare Intl
HLNORD
Helena
Sun 11/1
2:23 pm-9:30 pm
1 stop6h 07m
Chicago O'Hare Intl
Sun 11/8
7:00 am-1:40 pm
1 stop7h 40m
$448
HelenaChicago
HLN Helena - ORD Chicago O'Hare Intl
HLNORD
Helena
Thu 12/17
2:27 pm-10:42 pm
1 stop7h 15m
Chicago O'Hare Intl
Thu 12/24
3:40 pm-9:37 pm
1 stop6h 57m
$463
HelenaChicago
HLN Helena - ORD Chicago O'Hare Intl
HLNORD
Helena
Sat 1/23
6:15 am-1:21 pm
1 stop6h 06m
Chicago O'Hare Intl
Wed 1/27
4:15 pm-9:32 pm
1 stop6h 17m
$469
HelenaPeoria
HLN Helena - PIA Greater Peoria
HLNPIA
Helena
Sat 10/24
2:30 pm-8:51 pm
1 stop5h 21m
Greater Peoria
Wed 10/28
6:25 am-1:40 pm
2 stops8h 15m
$514
HelenaChicago
HLN Helena - ORD Chicago O'Hare Intl
HLNORD
Helena
Fri 11/6
1:08 pm-11:57 pm
2 stops9h 49m
Chicago O'Hare Intl
Sun 11/8
7:35 am-12:28 pm
1 stop5h 53m
$534
Showing 1-10 of 13 resultsSorted by cheapest first
Best time to book a flight from Helena to Illinois
Have a flexible travel schedule? Discover the best time to fly to Illinois from Helena with our price prediction graph.
HLN-ORD
HLN-PIA
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 Illinois
HLN-USIL
HLN-ORD
HLN-PIA
No data available for this route at this time. Please check back soon.
Reviews of airlines servicing Illinois
Get insights into the airlines that provide service to Illinois. 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 Illinois. Reviews last updated October 12, 2026.
Read reviews from past customers who have flown United Airlines from Helena to Illinois. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Boarding
7.7
Comfort
7.3
Food
6.7
Crew
8.1
Entertainment
7.1
Overall
7.4
Reviews
1 / 20
4.0
OkayChris,Aug 2026
MIA - ORD
Boarding
7.7
Comfort
7.3
Food
6.7
Crew
8.1
Entertainment
7.1
Overall
7.4
Reviews
1 / 20
4.0
OkayChris,Aug 2026
MIA - ORD
Related info for your journey
Find useful and relevant information for your journey from Helena to Illinois. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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