$250+ 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 9/9. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — HLN
Sep 29 — Oct 61
Round-trip
1 adult, Economy
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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
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Cheapest flights from Illinois to HelenaExplore 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 August 30, 2026.
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 August 30, 2026.
This United Airlines deal was found by Cheapflights users on 8/28. 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 9/264:49 pm -
1 stop5h 29m
Sat 10/32:30 pm -
1 stop8h 14m
Deal found 8/28![United Airlines logo]()
$339
This United Airlines deal was found by Cheapflights users on 8/26. 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 10/103:50 pm -
1 stop6h 18m
Thu 10/152:30 pm -
1 stop7h 16m
Deal found 8/26![United Airlines logo]()
$408
This United Airlines deal was found by Cheapflights users on 8/27. 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.
Fri 9/114:26 pm -
1 stop6h 04m
Tue 9/152:26 pm -
1 stop7h 20m
Deal found 8/27![United Airlines logo]()
$409
This United Airlines deal was found by Cheapflights users on 8/30. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/267:00 am -
1 stop7h 48m
Sat 10/32:30 pm -
1 stop7h 16m
Deal found 8/30![United Airlines logo]()
$427
This United Airlines deal was found by Cheapflights users on 8/27. 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 9/93:56 pm -
1 stop6h 34m
Sat 9/122:26 pm -
1 stop6h 33m
Deal found 8/27![United Airlines logo]()
$444
This Delta deal was found by Cheapflights users on 8/30. 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.
Tue 9/811:17 am -
2 stops12h 07m
Tue 9/1512:57 pm -
1 stop7h 58m
Deal found 8/30![Delta logo]()
$449
This United Airlines deal was found by Cheapflights users on 8/29. 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 9/198:40 am -
1 stop6h 05m
Mon 9/282:30 pm -
1 stop7h 16m
Deal found 8/29![United Airlines logo]()
$471
This United Airlines deal was found by Cheapflights users on 8/28. 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 9/284:39 pm -
1 stop5h 39m
Mon 10/52:30 pm -
1 stop8h 14m
Deal found 8/28![United Airlines logo]()
$479
This Delta deal was found by Cheapflights users on 8/27. 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 9/912:29 pm -
2 stops10h 55m
Sat 9/1212:57 pm -
2 stops10h 02m
Deal found 8/27![Delta logo]()
$484
This United Airlines deal was found by Cheapflights users on 8/25. 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 10/137:00 am -
1 stop7h 48m
Tue 10/202:30 pm -
1 stop7h 16m
Deal found 8/25![United Airlines logo]()
$518
This United Airlines deal was found by Cheapflights users on 8/26. 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 9/99:00 am -
1 stop5h 45m
Sun 9/132:26 pm -
1 stop8h 05m
Deal found 8/26![United Airlines logo]()
$525
This United Airlines deal was found by Cheapflights users on 8/26. 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 9/197:00 am -
1 stop7h 45m
Fri 9/252:30 pm -
1 stop6h 22m
Deal found 8/26![United Airlines logo]()
$528
Best flights from Illinois to HelenaDiscover carefully curated flight deals from Illinois to Helena that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 30, 2026.
Discover carefully curated flight deals from Illinois to Helena that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 30, 2026.
This United Airlines deal was found by Cheapflights users on 8/25. 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 1/231:20 pm -
2 stops8h 39m
Wed 1/272:30 pm -
1 stop5h 17m
Deal found 8/25![United Airlines logo]()
$424
This Alaska Airlines deal was found by Cheapflights users on 8/27. 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 9/247:00 pm -
1 stop22h 41m
Thu 10/15:18 pm -
1 stop12h 02m
Deal found 8/27![Alaska Airlines logo]()
$591
This Delta deal was found by Cheapflights users on 8/30. 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 9/910:44 am -
2 stops12h 40m
Wed 9/1612:57 pm -
1 stop7h 58m
Deal found 8/30![Delta logo]()
$629
This United Airlines deal was found by Cheapflights users on 8/27. 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 1/301:20 pm -
2 stops8h 39m
Wed 2/32:30 pm -
1 stop5h 17m
Deal found 8/27![United Airlines logo]()
$424
This United Airlines deal was found by Cheapflights users on 8/27. 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 9/264:49 pm -
1 stop5h 29m
Sat 10/32:30 pm -
1 stop8h 14m
Deal found 8/27![United Airlines logo]()
$429
This United Airlines deal was found by Cheapflights users on 8/29. 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 1/302:37 pm -
1 stop7h 22m
Tue 2/22:30 pm -
1 stop6h 01m
Deal found 8/29![United Airlines logo]()
$429
This United Airlines deal was found by Cheapflights users on 8/27. 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 9/93:56 pm -
1 stop6h 34m
Sat 9/122:26 pm -
1 stop6h 33m
Deal found 8/27![United Airlines logo]()
$444
This Alaska Airlines deal was found by Cheapflights users on 8/28. 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.
Mon 10/127:49 pm -
2 stops22h 00m
Mon 10/195:26 pm -
1 stop11h 14m
Deal found 8/28![Alaska Airlines logo]()
$606
This Alaska Airlines deal was found by Cheapflights users on 8/27. 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.
Fri 9/111:03 pm -
1 stop28h 38m
Tue 9/155:18 pm -
2 stops25h 57m
Deal found 8/27![Alaska Airlines logo]()
$609
This United Airlines deal was found by Cheapflights users on 8/25. 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 2/61:08 pm -
2 stops8h 51m
Tue 2/92:30 pm -
1 stop5h 29m
Deal found 8/25![United Airlines logo]()
$469
This United Airlines deal was found by Cheapflights users on 8/28. 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 9/284:39 pm -
1 stop5h 39m
Mon 10/52:30 pm -
1 stop8h 14m
Deal found 8/28![United Airlines logo]()
$479
This Delta deal was found by Cheapflights users on 8/30. 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 9/261:19 pm -
2 stops10h 10m
Sat 10/37:15 am -
2 stops9h 44m
Deal found 8/30![Delta logo]()
$845
This United Airlines deal was found by Cheapflights users on 8/26. 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 9/197:00 am -
1 stop7h 45m
Fri 9/252:30 pm -
1 stop6h 22m
Deal found 8/26![United Airlines logo]()
$528
This Delta deal was found by Cheapflights users on 8/28. 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 9/291:19 pm -
2 stops10h 05m
Tue 10/67:15 am -
2 stops9h 45m
Deal found 8/28![Delta logo]()
$914
This United Airlines deal was found by Cheapflights users on 8/30. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/94:26 pm -
1 stop6h 04m
Mon 9/142:26 pm -
1 stop6h 33m
Deal found 8/30![United Airlines logo]()
$534
This KAYAK deal was found by Cheapflights users on 8/28. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/152:00 pm -
2 stops9h 24m
Thu 9/177:15 am -
2 stops10h 18m
Deal found 8/28![Delta logo]()
$1,127
This KAYAK deal was found by Cheapflights users on 8/28. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/142:00 pm -
2 stops9h 24m
Thu 9/177:15 am -
2 stops10h 18m
Deal found 8/28![Delta logo]()
$1,154
This Delta deal was found by Cheapflights users on 8/27. 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 9/1111:35 am -
2 stops11h 49m
Tue 9/157:15 am -
2 stops10h 04m
Deal found 8/27![Delta logo]()
$1,200
This Delta deal was found by Cheapflights users on 8/26. 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 10/101:27 pm -
2 stops10h 02m
Thu 10/157:15 am -
2 stops8h 32m
Deal found 8/26![Delta logo]()
$1,715
This Delta deal was found by Cheapflights users on 8/29. 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.
Sun 9/131:19 pm -
2 stops10h 05m
Thu 9/177:15 am -
2 stops10h 18m
Deal found 8/29![Delta logo]()
$1,980
This Delta deal was found by Cheapflights users on 8/27. 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 9/241:19 pm -
2 stops10h 05m
Thu 10/17:15 am -
2 stops10h 04m
Deal found 8/27![Delta logo]()
$1,980
This Delta deal was found by Cheapflights users on 8/29. 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 9/192:00 pm -
2 stops9h 29m
Mon 9/287:15 am -
2 stops10h 18m
Deal found 8/29![Delta logo]()
$1,980
This Delta deal was found by Cheapflights users on 8/28. 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 10/1210:59 am -
2 stops12h 25m
Mon 10/197:15 am -
2 stops9h 45m
Deal found 8/28![Delta logo]()
$2,200
Last-minute flights from Illinois to HelenaDiscover last-minute flight deals from Illinois to Helena. Data last updated August 30, 2026 and is based on user searches.
Discover last-minute flight deals from Illinois to Helena. Data last updated August 30, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 8/30. 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.
Tue 9/811:17 am -
2 stops12h 07m
Tue 9/1512:57 pm -
1 stop7h 58m
Deal found 8/30![Delta logo]()
$449
This United Airlines deal was found by Cheapflights users on 8/27. 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 9/93:56 pm -
1 stop6h 34m
Sat 9/122:26 pm -
1 stop6h 33m
Deal found 8/27![United Airlines logo]()
$444
This Delta deal was found by Cheapflights users on 8/27. 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 9/912:29 pm -
2 stops10h 55m
Sat 9/1212:57 pm -
2 stops10h 02m
Deal found 8/27![Delta logo]()
$484
This United Airlines deal was found by Cheapflights users on 8/26. 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 9/99:00 am -
1 stop5h 45m
Sun 9/132:26 pm -
1 stop8h 05m
Deal found 8/26![United Airlines logo]()
$525
This United Airlines deal was found by Cheapflights users on 8/30. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/102:32 pm -
1 stop7h 58m
Thu 9/172:26 pm -
1 stop8h 33m
Deal found 8/30![United Airlines logo]()
$534
This United Airlines deal was found by Cheapflights users on 8/27. 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.
Fri 9/114:26 pm -
1 stop6h 04m
Tue 9/152:26 pm -
1 stop7h 20m
Deal found 8/27![United Airlines logo]()
$409
This United Airlines deal was found by Cheapflights users on 8/29. 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 9/198:40 am -
1 stop6h 05m
Mon 9/282:30 pm -
1 stop7h 16m
Deal found 8/29![United Airlines logo]()
$471
This United Airlines deal was found by Cheapflights users on 8/26. 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 9/197:00 am -
1 stop7h 45m
Fri 9/252:30 pm -
1 stop6h 22m
Deal found 8/26![United Airlines logo]()
$528
This United Airlines deal was found by Cheapflights users on 8/28. 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 9/197:00 am -
1 stop7h 45m
Sat 9/262:30 pm -
1 stop8h 29m
Deal found 8/28![United Airlines logo]()
$529
This United Airlines deal was found by Cheapflights users on 8/28. 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 9/264:49 pm -
1 stop5h 29m
Sat 10/32:30 pm -
1 stop8h 14m
Deal found 8/28![United Airlines logo]()
$339
This United Airlines deal was found by Cheapflights users on 8/30. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/267:00 am -
1 stop7h 48m
Sat 10/32:30 pm -
1 stop7h 16m
Deal found 8/30![United Airlines logo]()
$427
This United Airlines deal was found by Cheapflights users on 8/28. 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 9/284:39 pm -
1 stop5h 39m
Mon 10/52:30 pm -
1 stop8h 14m
Deal found 8/28![United Airlines logo]()
$479
One-way flights from Illinois to HelenaSearch for one-way flight options from Illinois to Helena. Find affordable one-way fares based on user searches. Data last updated August 30, 2026.
Search for one-way flight options from Illinois to Helena. Find affordable one-way fares based on user searches. Data last updated August 30, 2026.
This Orbitz deal was found by Cheapflights users on 8/27. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/98:00 am -
1 stop9h 41m
Deal found 8/27![Alaska Airlines logo]()
$250
This Alaska Airlines deal was found by Cheapflights users on 8/26. 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.
Mon 9/218:00 am -
1 stop9h 41m
Deal found 8/26![Alaska Airlines logo]()
$365
This United Airlines deal was found by Cheapflights users on 8/30. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/243:40 pm -
1 stop6h 57m
Deal found 8/30![United Airlines logo]()
$370
This Alaska Airlines deal was found by Cheapflights users on 8/30. 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.
Thu 12/242:08 pm -
2 stops26h 33m
Deal found 8/30![Alaska Airlines logo]()
$407
This Booking.com deal was found by Cheapflights users on 8/26. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/248:17 pm -
2 stops45h 24m
Deal found 8/26![Alaska Airlines logo]()
$411
This Delta deal was found by Cheapflights users on 8/27. 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 9/910:44 am -
2 stops12h 40m
Deal found 8/27![Delta logo]()
$434
This Delta deal was found by Cheapflights users on 8/27. 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 9/911:35 am -
2 stops11h 49m
Deal found 8/27![Delta logo]()
$434
This United Airlines deal was found by Cheapflights users on 8/30. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/2310:00 pm -
1 stop24h 37m
Deal found 8/30![United Airlines logo]()
$486
This United Airlines deal was found by Cheapflights users on 8/30. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/410:43 am -
2 stops11h 25m
Deal found 8/30![United Airlines logo]()
$489
This Delta deal was found by Cheapflights users on 8/30. 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.
Thu 12/243:30 pm -
2 stops31h 56m
Deal found 8/30![Delta logo]()
$493
This United Airlines deal was found by Cheapflights users on 8/26. 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 9/2112:40 pm -
2 stops9h 50m
Deal found 8/26![United Airlines logo]()
$583
This Kiwi.com deal was found by Cheapflights users on 8/26. 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 9/248:55 pm -
3 stops44h 46m
Deal found 8/26![Multiple Airlines logo]()
$604
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 August 30, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $339 (United Airlines) |
One-way from | $250 (Orbitz) |
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 7,457,451 searches. Data last updated August 30, 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
Cheapest round-trip
PeoriaHelena
PIA Greater Peoria - HLN Helena
PIAHLN
Greater Peoria
Sat 1/23
1:20 pm-8:59 pm
2 stops8h 39m
Helena
Wed 1/27
2:30 pm-8:47 pm
1 stop5h 17m
$424
PeoriaHelena
PIA Greater Peoria - HLN Helena
PIAHLN
Greater Peoria
Sat 1/30
1:20 pm-8:59 pm
2 stops8h 39m
Helena
Wed 2/3
2:30 pm-8:47 pm
1 stop5h 17m
$424
St. LouisHelena
STL Lambert-St Louis - HLN Helena
STLHLN
Lambert-St Louis
Sat 9/26
4:49 pm-9:18 pm
1 stop5h 29m
Helena
Sat 10/3
2:30 pm-11:44 pm
1 stop8h 14m
$429
ChicagoHelena
ORD Chicago O'Hare Intl - HLN Helena
ORDHLN
Chicago O'Hare Intl
Sat 1/30
2:37 pm-8:59 pm
1 stop7h 22m
Helena
Tue 2/2
2:30 pm-9:31 pm
1 stop6h 01m
$429
ChicagoHelena
ORD Chicago O'Hare Intl - HLN Helena
ORDHLN
Chicago O'Hare Intl
Wed 9/9
3:56 pm-9:30 pm
1 stop6h 34m
Helena
Sat 9/12
2:26 pm-9:59 pm
1 stop6h 33m
$444
St. LouisHelena
STL Lambert-St Louis - HLN Helena
STLHLN
Lambert-St Louis
Sat 2/6
1:08 pm-8:59 pm
2 stops8h 51m
Helena
Tue 2/9
2:30 pm-8:59 pm
1 stop5h 29m
$469
St. LouisHelena
STL Lambert-St Louis - HLN Helena
STLHLN
Lambert-St Louis
Mon 9/28
4:39 pm-9:18 pm
1 stop5h 39m
Helena
Mon 10/5
2:30 pm-11:44 pm
1 stop8h 14m
$479
ChicagoHelena
ORD Chicago O'Hare Intl - HLN Helena
ORDHLN
Chicago O'Hare Intl
Sat 9/19
7:00 am-1:45 pm
1 stop7h 45m
Helena
Fri 9/25
2:30 pm-9:52 pm
1 stop6h 22m
$528
Quickest round-trip
ChicagoHelena
ORD Chicago O'Hare Intl - HLN Helena
ORDHLN
Chicago O'Hare Intl
Wed 9/9
4:26 pm-9:30 pm
1 stop6h 04m
Helena
Mon 9/14
2:26 pm-9:59 pm
1 stop6h 33m
$534
ChicagoHelena
ORD Chicago O'Hare Intl - HLN Helena
ORDHLN
Chicago O'Hare Intl
Thu 9/24
7:00 pm-4:41 pm
1 stop22h 41m
Helena
Thu 10/1
5:18 pm-6:20 am
1 stop12h 02m
$591
Showing 1-10 of 40 resultsSorted by cheapest first
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.
ORD-HLN
MDW-HLN
PIA-HLN
STL-HLN
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
USIL-HLN
ORD-HLN
MDW-HLN
PIA-HLN
STL-HLN
No data available for this route at this time. Please check back soon.
Related info for your journey
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