$158+ Cheap flights from Harrisburg (MDT) to Illinois
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 11/1. Fares are subject to change and may not be available on all flights or dates of travel.
MDT — ORD
Sep 5 — Sep 121
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
Find cheap flights from Harrisburg to Illinois 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 Harrisburg to Illinois
Cheapest
Best
Last-minute
One-way
Cheapest flights from Harrisburg to IllinoisExplore the most affordable flight options available from Harrisburg to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 6, 2026.
Explore the most affordable flight options available from Harrisburg to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 6, 2026.
This American Airlines deal was found by Cheapflights users on 8/1. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/96:08 am -
Nonstop2h 21m
Wed 10/148:20 am -
Nonstop1h 57m
Deal found 8/1![American Airlines logo]()
$279
This American Airlines deal was found by Cheapflights users on 8/1. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/221:25 pm -
Nonstop2h 10m
Sun 8/236:50 pm -
Nonstop2h 08m
Deal found 8/1![American Airlines logo]()
$280
This American Airlines deal was found by Cheapflights users on 8/5. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/66:00 am -
Nonstop2h 21m
Tue 9/89:45 am -
Nonstop2h 00m
Deal found 8/5![American Airlines logo]()
$284
This American Airlines deal was found by Cheapflights users on 8/5. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/51:25 pm -
1 stop5h 41m
Wed 9/91:23 pm -
2 stops7h 56m
Deal found 8/5![American Airlines logo]()
$286
This American Airlines deal was found by Cheapflights users on 8/1. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/96:08 am -
Nonstop2h 21m
Tue 10/136:40 am -
1 stop6h 27m
Deal found 8/1![American Airlines logo]()
$289
This United Airlines deal was found by Cheapflights users on 8/4. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/16:15 am -
1 stop4h 23m
Sun 10/48:50 am -
1 stop4h 09m
Deal found 8/4![United Airlines logo]()
$299
This Delta deal was found by Cheapflights users on 8/4. 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.
Sat 12/196:10 am -
1 stop3h 35m
Mon 1/115:59 pm -
1 stop3h 47m
Deal found 8/4![Delta logo]()
$299
This United Airlines deal was found by Cheapflights users on 8/2. 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 10/245:54 pm -
1 stop6h 05m
Sat 10/318:30 am -
1 stop7h 20m
Deal found 8/2![United Airlines logo]()
$301
This United Airlines deal was found by Cheapflights users on 8/5. 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.
Fri 10/26:30 am -
Nonstop2h 11m
Thu 10/88:50 am -
1 stop4h 09m
Deal found 8/5![United Airlines logo]()
$308
This United Airlines deal was found by Cheapflights users on 8/2. 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 8/206:15 am -
1 stop4h 23m
Wed 8/261:55 pm -
Nonstop1h 57m
Deal found 8/2![United Airlines logo]()
$309
This American Airlines deal was found by Cheapflights users on 8/3. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/106:00 am -
1 stop5h 18m
Sun 9/135:00 am -
1 stop5h 23m
Deal found 8/3![American Airlines logo]()
$310
This American Airlines deal was found by Cheapflights users on 8/1. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/266:54 pm -
Nonstop2h 25m
Tue 9/298:21 am -
Nonstop2h 02m
Deal found 8/1![American Airlines logo]()
$315
Best flights from Harrisburg to IllinoisDiscover carefully curated flight deals from Harrisburg to Illinois that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 6, 2026.
Discover carefully curated flight deals from Harrisburg to Illinois that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 6, 2026.
This United Airlines deal was found by Cheapflights users on 8/4. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/16:15 am -
1 stop4h 23m
Sun 10/48:50 am -
1 stop4h 09m
Deal found 8/4![United Airlines logo]()
$299
This Delta deal was found by Cheapflights users on 8/3. 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 10/146:21 pm -
1 stop6h 31m
Sun 10/185:29 pm -
1 stop4h 29m
Deal found 8/3![Delta logo]()
$299
This American Airlines deal was found by Cheapflights users on 8/5. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/51:25 pm -
1 stop5h 41m
Wed 9/96:00 am -
1 stop4h 23m
Deal found 8/5![American Airlines logo]()
$316
This Delta deal was found by Cheapflights users on 8/2. 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 12/196:10 am -
1 stop3h 35m
Mon 1/115:59 pm -
1 stop3h 47m
Deal found 8/2![Delta logo]()
$299
This American Airlines deal was found by Cheapflights users on 8/5. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/51:25 pm -
1 stop4h 34m
Wed 9/95:02 am -
1 stop5h 21m
Deal found 8/5![American Airlines logo]()
$319
This Delta deal was found by Cheapflights users on 8/5. 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.
Wed 12/236:10 am -
1 stop3h 35m
Sat 1/25:59 pm -
1 stop3h 47m
Deal found 8/5![Delta logo]()
$299
This United Airlines deal was found by Cheapflights users on 8/5. 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.
Wed 8/196:30 am -
1 stop6h 32m
Sat 8/223:32 pm -
1 stop4h 21m
Deal found 8/5![United Airlines logo]()
$349
This American Airlines deal was found by Cheapflights users on 8/4. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/47:31 pm -
1 stop5h 28m
Tue 9/85:00 am -
1 stop6h 45m
Deal found 8/4![American Airlines logo]()
$319
This Delta deal was found by Cheapflights users on 8/4. 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.
Sat 10/106:25 pm -
1 stop5h 08m
Tue 10/136:44 pm -
1 stop3h 14m
Deal found 8/4![Delta logo]()
$299
This United Airlines deal was found by Cheapflights users on 8/1. 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.
Fri 8/142:17 pm -
Nonstop2h 16m
Sun 8/161:55 pm -
Nonstop1h 57m
Deal found 8/1![United Airlines logo]()
$354
This Delta deal was found by Cheapflights users on 8/2. 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 9/112:22 pm -
1 stop5h 37m
Tue 9/85:37 pm -
1 stop4h 38m
Deal found 8/2![Delta logo]()
$299
This United Airlines deal was found by Cheapflights users on 8/3. 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 10/146:30 am -
Nonstop2h 11m
Sun 10/186:50 am -
Nonstop2h 01m
Deal found 8/3![United Airlines logo]()
$359
This American Airlines deal was found by Cheapflights users on 8/5. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/51:25 pm -
1 stop5h 41m
Thu 9/101:23 pm -
2 stops8h 48m
Deal found 8/5![American Airlines logo]()
$361
This Delta deal was found by Cheapflights users on 8/5. 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.
Sun 9/612:22 pm -
1 stop5h 37m
Tue 9/85:37 pm -
1 stop4h 38m
Deal found 8/5![Delta logo]()
$299
This American Airlines deal was found by Cheapflights users on 8/4. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/41:25 pm -
1 stop3h 59m
Tue 9/811:41 am -
2 stops9h 18m
Deal found 8/4![American Airlines logo]()
$361
This Delta deal was found by Cheapflights users on 8/1. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/126:09 pm -
1 stop5h 35m
Sun 9/136:40 pm -
1 stop3h 49m
Deal found 8/1![Delta logo]()
$299
This United Airlines deal was found by Cheapflights users on 8/4. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/277:59 pm -
1 stop4h 41m
Sun 8/306:30 am -
1 stop6h 33m
Deal found 8/4![United Airlines logo]()
$379
This Delta deal was found by Cheapflights users on 8/2. 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 8/286:24 pm -
1 stop5h 12m
Tue 9/14:39 pm -
1 stop6h 04m
Deal found 8/2![Delta logo]()
$299
This United Airlines deal was found by Cheapflights users on 8/4. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/282:40 pm -
1 stop5h 14m
Sat 10/318:50 am -
1 stop4h 08m
Deal found 8/4![United Airlines logo]()
$379
This Delta deal was found by Cheapflights users on 8/3. 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 10/2212:12 pm -
1 stop6h 48m
Mon 10/265:15 pm -
1 stop5h 13m
Deal found 8/3![Delta logo]()
$299
This United Airlines deal was found by Cheapflights users on 8/5. 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.
Fri 8/145:54 pm -
Nonstop2h 11m
Mon 8/175:50 pm -
Nonstop2h 03m
Deal found 8/5![United Airlines logo]()
$389
This Delta deal was found by Cheapflights users on 8/1. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/216:24 pm -
1 stop6h 33m
Sun 8/236:59 am -
1 stop3h 42m
Deal found 8/1![Delta logo]()
$319
This United Airlines deal was found by Cheapflights users on 8/3. 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 9/106:30 am -
1 stop6h 27m
Sun 9/138:30 am -
1 stop7h 22m
Deal found 8/3![United Airlines logo]()
$390
This United Airlines deal was found by Cheapflights users on 8/5. 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.
Thu 8/272:17 pm -
1 stop4h 42m
Mon 8/319:12 am -
1 stop6h 40m
Deal found 8/5![United Airlines logo]()
$394
This Delta deal was found by Cheapflights users on 8/5. 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.
Sat 9/512:17 pm -
2 stops10h 30m
Wed 9/912:04 pm -
2 stops10h 11m
Deal found 8/5![Delta logo]()
$329
This American Airlines deal was found by Cheapflights users on 8/1. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/236:54 pm -
1 stop6h 11m
Fri 9/254:57 pm -
1 stop17h 26m
Deal found 8/1![American Airlines logo]()
$542
This United Airlines deal was found by Cheapflights users on 8/4. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/16:30 am -
1 stop4h 36m
Mon 9/73:35 pm -
1 stop4h 23m
Deal found 8/4![United Airlines logo]()
$399
This Delta deal was found by Cheapflights users on 8/2. 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 10/232:56 pm -
1 stop6h 56m
Sun 10/255:29 pm -
1 stop4h 29m
Deal found 8/2![Delta logo]()
$339
This United Airlines deal was found by Cheapflights users on 8/5. 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.
Fri 1/86:30 am -
1 stop4h 51m
Mon 1/111:20 pm -
1 stop7h 00m
Deal found 8/5![United Airlines logo]()
$399
This American Airlines deal was found by Cheapflights users on 8/3. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/212:23 pm -
2 stops10h 36m
Sun 8/236:00 am -
1 stop5h 45m
Deal found 8/3![American Airlines logo]()
$592
Last-minute flights from Harrisburg to IllinoisDiscover last-minute flight deals from Harrisburg to Illinois. Data last updated August 6, 2026 and is based on user searches.
Discover last-minute flight deals from Harrisburg to Illinois. Data last updated August 6, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 8/2. 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 8/186:00 am -
1 stop4h 59m
Mon 8/246:42 pm -
1 stop3h 39m
Deal found 8/2![Delta logo]()
$319
This United Airlines deal was found by Cheapflights users on 8/2. 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 8/206:15 am -
1 stop4h 23m
Wed 8/261:55 pm -
Nonstop1h 57m
Deal found 8/2![United Airlines logo]()
$309
This United Airlines deal was found by Cheapflights users on 8/4. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/202:17 pm -
Nonstop2h 16m
Sun 8/235:50 pm -
Nonstop2h 03m
Deal found 8/4![United Airlines logo]()
$319
This American Airlines deal was found by Cheapflights users on 8/1. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/221:25 pm -
Nonstop2h 10m
Sun 8/236:50 pm -
Nonstop2h 08m
Deal found 8/1![American Airlines logo]()
$280
This United Airlines deal was found by Cheapflights users on 8/2. 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 8/286:15 am -
1 stop4h 23m
Sun 8/3010:25 am -
Nonstop2h 07m
Deal found 8/2![United Airlines logo]()
$289
This Delta deal was found by Cheapflights users on 8/5. 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.
Fri 8/286:24 pm -
1 stop5h 12m
Wed 9/26:05 am -
1 stop4h 44m
Deal found 8/5![Delta logo]()
$299
This American Airlines deal was found by Cheapflights users on 8/5. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/51:25 pm -
1 stop5h 41m
Wed 9/91:23 pm -
2 stops7h 56m
Deal found 8/5![American Airlines logo]()
$286
This American Airlines deal was found by Cheapflights users on 8/5. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/66:00 am -
Nonstop2h 21m
Tue 9/89:45 am -
Nonstop2h 00m
Deal found 8/5![American Airlines logo]()
$284
This American Airlines deal was found by Cheapflights users on 8/3. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/106:00 am -
1 stop5h 18m
Sun 9/135:00 am -
1 stop5h 23m
Deal found 8/3![American Airlines logo]()
$310
This United Airlines deal was found by Cheapflights users on 8/1. 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 9/126:30 am -
Nonstop2h 11m
Sun 9/131:55 pm -
Nonstop1h 57m
Deal found 8/1![United Airlines logo]()
$279
This Delta deal was found by Cheapflights users on 8/4. 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.
Sat 9/126:09 pm -
1 stop6h 50m
Sun 9/135:30 am -
1 stop4h 33m
Deal found 8/4![Delta logo]()
$299
This American Airlines deal was found by Cheapflights users on 8/1. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/266:54 pm -
Nonstop2h 25m
Tue 9/298:21 am -
Nonstop2h 02m
Deal found 8/1![American Airlines logo]()
$315
One-way flights from Harrisburg to IllinoisSearch for one-way flight options from Harrisburg to Illinois. Find affordable one-way fares based on user searches. Data last updated August 6, 2026.
Search for one-way flight options from Harrisburg to Illinois. Find affordable one-way fares based on user searches. Data last updated August 6, 2026.
This Kiwi.com deal was found by Cheapflights users on 8/2. 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.
Sun 11/19:59 pm -
2 stops37h 02m
Deal found 8/2![Multiple Airlines logo]()
$158
This American Airlines deal was found by Cheapflights users on 8/5. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/231:25 pm -
Nonstop2h 10m
Deal found 8/5![American Airlines logo]()
$176
This United Airlines deal was found by Cheapflights users on 8/5. 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.
Sun 10/115:54 pm -
Nonstop2h 11m
Deal found 8/5![United Airlines logo]()
$179
This Kiwi.com deal was found by Cheapflights users on 8/1. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/237:15 pm -
1 stop14h 15m
Deal found 8/1![Allegiant Air logo]()
$179
This Kiwi.com deal was found by Cheapflights users on 8/3. 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.
Fri 8/285:54 pm -
2 stops27h 14m
Deal found 8/3![Multiple Airlines logo]()
$180
This American Airlines deal was found by Cheapflights users on 8/5. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/31:25 pm -
Nonstop2h 10m
Deal found 8/5![American Airlines logo]()
$183
This Kiwi.com deal was found by Cheapflights users on 8/1. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/233:59 pm -
2 stops32h 09m
Deal found 8/1![Multiple Airlines logo]()
$185
This Delta deal was found by Cheapflights users on 8/4. 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.
Sat 9/512:17 pm -
1 stop5h 00m
Deal found 8/4![Delta logo]()
$186
This Kiwi.com deal was found by Cheapflights users on 8/1. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/207:15 pm -
1 stop14h 15m
Deal found 8/1![Allegiant Air logo]()
$186
This American Airlines deal was found by Cheapflights users on 8/5. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/117:06 pm -
1 stop4h 24m
Deal found 8/5![American Airlines logo]()
$189
This Kiwi.com deal was found by Cheapflights users on 8/1. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/302:26 pm -
2 stops47h 24m
Deal found 8/1![Multiple Airlines logo]()
$194
This Kiwi.com deal was found by Cheapflights users on 8/2. 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.
Sat 10/2411:53 am -
3 stops22h 47m
Deal found 8/2![Multiple Airlines logo]()
$196
Find flight deals from Harrisburg to Illinois
Keep the following information in mind while searching for Harrisburg to Illinois flight deals. Data was last updated August 6, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $279 (American Airlines) |
One-way from | $158 (Kiwi.com) |
Popular in | July |
Cheapest in | February |
Average price | $299 |
Cheapflights Fare Finder
Customize your flight search to find flights from Harrisburg 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 2,558,603 searches. Data last updated August 6, 2026.
Use the filters below to find and compare flights from Harrisburg to Illinois that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
HarrisburgChicago
MDT Harrisburg - ORD Chicago O'Hare Intl
MDTORD
Harrisburg
Thu 10/1
6:15 am-9:38 am
1 stop4h 23m
Chicago O'Hare Intl
Sun 10/4
8:50 am-1:59 pm
1 stop4h 09m
$299
HarrisburgChicago
MDT Harrisburg - ORD Chicago O'Hare Intl
MDTORD
Harrisburg
Wed 10/14
6:21 pm-11:52 pm
1 stop6h 31m
Chicago O'Hare Intl
Sun 10/18
5:29 pm-10:58 pm
1 stop4h 29m
$299
HarrisburgChicago
MDT Harrisburg - MDW Chicago Midway
MDTMDW
Harrisburg
Sat 12/19
6:10 am-8:45 am
1 stop3h 35m
Chicago Midway
Mon 1/11
5:59 pm-10:46 pm
1 stop3h 47m
$299
HarrisburgChicago
MDT Harrisburg - MDW Chicago Midway
MDTMDW
Harrisburg
Wed 12/23
6:10 am-8:45 am
1 stop3h 35m
Chicago Midway
Sat 1/2
5:59 pm-10:46 pm
1 stop3h 47m
$299
HarrisburgChicago
MDT Harrisburg - MDW Chicago Midway
MDTMDW
Harrisburg
Sat 10/10
6:25 pm-10:33 pm
1 stop5h 08m
Chicago Midway
Tue 10/13
6:44 pm-10:58 pm
1 stop3h 14m
$299
HarrisburgChicago
MDT Harrisburg - MDW Chicago Midway
MDTMDW
Harrisburg
Tue 9/1
12:22 pm-4:59 pm
1 stop5h 37m
Chicago Midway
Tue 9/8
5:37 pm-11:15 pm
1 stop4h 38m
$299
HarrisburgChicago
MDT Harrisburg - MDW Chicago Midway
MDTMDW
Harrisburg
Sun 9/6
12:22 pm-4:59 pm
1 stop5h 37m
Chicago Midway
Tue 9/8
5:37 pm-11:15 pm
1 stop4h 38m
$299
HarrisburgChicago
MDT Harrisburg - MDW Chicago Midway
MDTMDW
Harrisburg
Sat 9/12
6:09 pm-10:44 pm
1 stop5h 35m
Chicago Midway
Sun 9/13
6:40 pm-11:29 pm
1 stop3h 49m
$299
HarrisburgChicago
MDT Harrisburg - MDW Chicago Midway
MDTMDW
Harrisburg
Fri 8/28
6:24 pm-10:36 pm
1 stop5h 12m
Chicago Midway
Tue 9/1
4:39 pm-11:43 pm
1 stop6h 04m
$299
HarrisburgChicago
MDT Harrisburg - MDW Chicago Midway
MDTMDW
Harrisburg
Thu 10/22
12:12 pm-6:00 pm
1 stop6h 48m
Chicago Midway
Mon 10/26
5:15 pm-11:28 pm
1 stop5h 13m
$299
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Harrisburg to Illinois
Have a flexible travel schedule? Discover the best time to fly to Illinois from Harrisburg with our price prediction graph.
MDT-ORD
MDT-CMI
MDT-MDW
MDT-STL
MDT-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 Harrisburg to Illinois
MDT-USIL
MDT-ORD
MDT-CMI
MDT-MDW
MDT-STL
What is the cheapest month to book a flight from Harrisburg to Illinois?
Currently, February is the cheapest month in which you can book a flight from Harrisburg to Illinois (average of $268). Flying from Harrisburg to Illinois in March is currently the most expensive (average of $376). 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 MDT to IL?
Find hourly flight availability from Harrisburg to Illinois. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 6, 2026.
It’s typically best to fly out from Harrisburg to Illinois in the evening. Doing so could potentially save you 25% on the flight price compared to flying at noon, which is usually more expensive.
Weekly flight availability from Harrisburg to Illinois
Explore weekly flight availability from Harrisburg to Illinois. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated August 6, 2026.
The most flights from MDT to USIL are scheduled on a Wednesday (16 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (7 on average).
How much does it cost to fly round-trip from Harrisburg to Illinois?
Airfare is typical for this route at the moment.
Harrisburg to Illinois flights typically cost between $269 and $479 in October.The cheapest round-trip price found within the last 5 days was $279 on American Airlines (Oct 9-Oct 13).
How far ahead should I book a flight from Harrisburg to Illinois?
The price you pay for your flight from Harrisburg to Illinois may vary depending on when you book. For the best chance of a lower fare, look to book 80 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
What is the cheapest day to fly from Harrisburg to Illinois?
Use this chart to determine the cheapest time to fly round-trip from Harrisburg to Illinois. Price data was last updated on August 1, 2026.
Travelers seeking maximum savings on their Harrisburg to Illinois flight should consider departing on Saturday evenings when fares are most often at their lowest. Monday at noon flights should be avoided if possible as fares are typically the most expensive at this time.
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 August 6, 2026.
See what other customers who have flown with Delta,United Airlines, andAmerican Airlines from Harrisburg to Illinois have to say. 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.
Crew
8.5
Overall
7.8
Comfort
7.8
Boarding
8.1
Entertainment
7.8
Food
7.2
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Crew
8.5
Overall
7.8
Comfort
7.8
Boarding
8.1
Entertainment
7.8
Food
7.2
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Crew
8.5
Overall
7.8
Comfort
7.8
Boarding
8.1
Entertainment
7.8
Food
7.2
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Crew
8.5
Overall
7.8
Comfort
7.8
Boarding
8.1
Entertainment
7.8
Food
7.2
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Related info for your journey
Find useful and relevant information for your journey from Harrisburg to Illinois. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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
Complete your trip
Flights by cabin class
Other flight options
Popular flights
Top destinations
Alternative routes for Harrisburg to Illinois
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Illinois by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Harrisburg to Illinois by cabin class
Find flights from Harrisburg to Illinois, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Harrisburg and Illinois flights
Browse other Harrisburg and Illinois flight options. Last updated on August 6, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Harrisburg to Illinois flights
Consider these flights traveling from Harrisburg to Illinois.
Top 3 airlines flying from Harrisburg to Illinois
Discover the top 3 airlines that operate flights from Harrisburg to Illinois. 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 August 6, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$209 | Average$317 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$209 | Average$380 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$248 | Average$408 | FlexibilityNo cancel fee | On-timeN/A |