$110+ 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 5/28. Fares are subject to change and may not be available on all flights or dates of travel.
MDT — ORD
Jun 1 — Jun 81
Round-trip
1 adult, Economy
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Find cheap flights from Harrisburg to Illinois with Cheapflights
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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 May 2, 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 May 2, 2026.
This Kiwi.com deal was found by Cheapflights users on 4/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/285:57 pm
MDT
- ORD
1 stop15h 25m
Multiple Airlines
Sun 5/318:05 am
ORD
- MDT
1 stop8h 02m
Multiple Airlines
Deal found 4/28![Multiple Airlines logo]()
$255
This American Airlines deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/227:17 pm
MDT
- ORD
Nonstop2h 18m
American Airlines
Thu 5/288:00 am
ORD
- MDT
Nonstop2h 07m
American Airlines
Deal found 4/30![American Airlines logo]()
$269
This American Airlines deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/216:00 am
MDT
- ORD
Nonstop2h 17m
American Airlines
Sun 5/248:00 am
ORD
- MDT
Nonstop2h 07m
American Airlines
Deal found 4/30![American Airlines logo]()
$270
This American Airlines deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/2211:37 am
MDT
- ORD
Nonstop2h 20m
American Airlines
Mon 5/255:00 am
ORD
- MDT
1 stop4h 08m
American Airlines
Deal found 4/30![American Airlines logo]()
$279
This United Airlines deal was found by Cheapflights users on 4/28. 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.
Fri 6/196:30 am
MDT
- ORD
Nonstop2h 12m
United Airlines
Mon 6/226:25 pm
ORD
- MDT
Nonstop2h 04m
United Airlines
Deal found 4/28![United Airlines logo]()
$281
This United Airlines deal was found by Cheapflights users on 4/27. 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.
Thu 6/46:30 am
MDT
- ORD
Nonstop2h 12m
United Airlines
Sun 6/76:25 pm
ORD
- MDT
Nonstop2h 04m
United Airlines
Deal found 4/27![United Airlines logo]()
$287
This Delta deal was found by Cheapflights users on 4/28. 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.
Fri 5/225:00 pm
MDT
- ORD
1 stop4h 14m
Delta
Tue 5/265:19 pm
ORD
- MDT
1 stop4h 31m
Delta
Deal found 4/28![Delta logo]()
$289
This Delta deal was found by Cheapflights users on 4/28. 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.
Fri 8/212:56 pm
MDT
- MDW
1 stop7h 50m
Delta
Sun 8/236:00 am
MDW
- MDT
1 stop7h 09m
Delta
Deal found 4/28![Delta logo]()
$289
This United Airlines deal was found by Cheapflights users on 4/28. 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.
Fri 6/196:30 am
MDT
- ORD
Nonstop2h 12m
United Airlines
Sun 6/216:30 am
ORD
- MDT
1 stop6h 20m
United Airlines
Deal found 4/28![United Airlines logo]()
$290
This Kiwi.com deal was found by Cheapflights users on 4/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/189:20 am
MDT
- ORD
1 stop14h 53m
Multiple Airlines
Wed 5/201:59 pm
ORD
- MDT
2 stops26h 08m
Multiple Airlines
Deal found 4/27![Multiple Airlines logo]()
$291
This Delta deal was found by Cheapflights users on 4/28. 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.
Fri 5/296:33 pm
MDT
- STL
1 stop6h 26m
Delta
Tue 6/25:15 pm
STL
- MDT
1 stop5h 36m
Delta
Deal found 4/28![Delta logo]()
$291
This United Airlines deal was found by Cheapflights users on 4/29. 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.
Mon 6/227:59 pm
MDT
- ORD
1 stop4h 27m
United Airlines
Sat 6/276:36 am
ORD
- MDT
Nonstop2h 00m
United Airlines
Deal found 4/29![United Airlines logo]()
$296
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 May 2, 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 May 2, 2026.
This United Airlines deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/35:55 pm
MDT
- ORD
Nonstop2h 10m
United Airlines
Wed 7/88:40 am
ORD
- MDT
1 stop4h 10m
United Airlines
Deal found 4/30![United Airlines logo]()
$279
This Delta deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/212:56 pm
MDT
- ORD
1 stop6h 21m
Delta
Sun 8/237:10 am
ORD
- MDT
1 stop5h 59m
Delta
Deal found 4/30![Delta logo]()
$289
This American Airlines deal was found by Cheapflights users on 4/27. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/87:45 pm
MDT
- MLI
1 stop5h 56m
American Airlines
Mon 7/136:50 pm
MLI
- MDT
1 stop4h 32m
American Airlines
Deal found 4/27![American Airlines logo]()
$329
This Delta deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/225:00 pm
MDT
- ORD
1 stop4h 14m
Delta
Mon 5/255:30 am
ORD
- MDT
1 stop4h 37m
Delta
Deal found 5/1![Delta logo]()
$289
This Delta deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/276:22 pm
MDT
- ORD
1 stop6h 42m
Delta
Wed 7/17:01 am
ORD
- MDT
1 stop3h 41m
Delta
Deal found 5/1![Delta logo]()
$289
This United Airlines deal was found by Cheapflights users on 4/27. 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.
Thu 8/276:30 am
MDT
- PIA
1 stop7h 14m
United Airlines
Sun 8/301:21 pm
PIA
- MDT
1 stop5h 09m
United Airlines
Deal found 4/27![United Airlines logo]()
$329
This American Airlines deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/154:59 pm
MDT
- PIA
1 stop7h 53m
American Airlines
Tue 5/197:04 pm
PIA
- MDT
1 stop3h 48m
American Airlines
Deal found 4/30![American Airlines logo]()
$339
This Delta deal was found by Cheapflights users on 4/28. 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.
Wed 8/1212:30 pm
MDT
- ORD
1 stop5h 06m
Delta
Wed 8/197:10 am
ORD
- MDT
1 stop3h 41m
Delta
Deal found 4/28![Delta logo]()
$289
This Delta deal was found by Cheapflights users on 4/29. 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.
Fri 8/212:56 pm
MDT
- MDW
1 stop7h 50m
Delta
Sun 8/236:00 am
MDW
- MDT
1 stop4h 36m
Delta
Deal found 4/29![Delta logo]()
$289
This United Airlines deal was found by Cheapflights users on 4/28. 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.
Thu 8/137:59 pm
MDT
- ORD
1 stop4h 22m
United Airlines
Wed 8/194:35 pm
ORD
- MDT
Nonstop1h 55m
United Airlines
Deal found 4/28![United Airlines logo]()
$359
This Delta deal was found by Cheapflights users on 4/27. 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 8/272:56 pm
MDT
- MDW
1 stop7h 50m
Delta
Mon 8/316:00 am
MDW
- MDT
1 stop7h 09m
Delta
Deal found 4/27![Delta logo]()
$289
This United Airlines deal was found by Cheapflights users on 4/28. 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.
Wed 8/127:59 pm
MDT
- ORD
1 stop4h 22m
United Airlines
Wed 8/196:30 am
ORD
- MDT
Nonstop2h 01m
United Airlines
Deal found 4/28![United Airlines logo]()
$359
This American Airlines deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/46:05 am
MDT
- PIA
1 stop4h 18m
American Airlines
Sun 6/76:00 am
PIA
- MDT
1 stop4h 05m
American Airlines
Deal found 5/1![American Airlines logo]()
$399
This Delta deal was found by Cheapflights users on 4/28. 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.
Thu 8/202:56 pm
MDT
- MDW
1 stop7h 50m
Delta
Sat 8/225:59 pm
MDW
- MDT
1 stop3h 45m
Delta
Deal found 4/28![Delta logo]()
$289
This United Airlines deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/17:59 pm
MDT
- ORD
1 stop4h 27m
United Airlines
Sun 6/76:25 pm
ORD
- MDT
Nonstop2h 04m
United Airlines
Deal found 5/1![United Airlines logo]()
$379
This Delta deal was found by Cheapflights users on 4/28. 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.
Sat 5/236:20 am
MDT
- MDW
1 stop3h 23m
Delta
Wed 5/275:12 pm
MDW
- MDT
1 stop5h 39m
Delta
Deal found 4/28![Delta logo]()
$289
This American Airlines deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/2510:36 am
MDT
- STL
1 stop7h 35m
American Airlines
Sun 9/276:20 am
STL
- MDT
1 stop4h 36m
American Airlines
Deal found 5/1![American Airlines logo]()
$429
This Delta deal was found by Cheapflights users on 4/28. 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.
Wed 6/36:20 am
MDT
- MDW
1 stop3h 23m
Delta
Sat 6/65:30 pm
MDW
- MDT
1 stop5h 21m
Delta
Deal found 4/28![Delta logo]()
$289
This United Airlines deal was found by Cheapflights users on 4/27. 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 5/296:30 am
MDT
- MLI
1 stop7h 07m
United Airlines
Sun 5/315:39 pm
MLI
- MDT
1 stop6h 04m
United Airlines
Deal found 4/27![United Airlines logo]()
$409
This Delta deal was found by Cheapflights users on 4/29. 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 6/206:22 pm
MDT
- MDW
1 stop4h 55m
Delta
Sat 6/279:17 am
MDW
- MDT
1 stop6h 37m
Delta
Deal found 4/29![Delta logo]()
$289
This American Airlines deal was found by Cheapflights users on 4/28. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/183:37 pm
MDT
- MLI
1 stop7h 02m
American Airlines
Tue 9/227:07 am
MLI
- MDT
1 stop4h 33m
American Airlines
Deal found 4/28![American Airlines logo]()
$487
This Delta deal was found by Cheapflights users on 4/27. 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 5/2912:45 pm
MDT
- STL
1 stop5h 31m
Delta
Tue 6/26:45 am
STL
- MDT
1 stop4h 27m
Delta
Deal found 4/27![Delta logo]()
$291
This United Airlines deal was found by Cheapflights users on 4/28. 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.
Wed 5/136:30 am
MDT
- PIA
1 stop4h 34m
United Airlines
Sun 5/171:35 pm
PIA
- MDT
1 stop6h 44m
United Airlines
Deal found 4/28![United Airlines logo]()
$449
This Delta deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/115:38 pm
MDT
- STL
1 stop3h 59m
Delta
Sun 7/126:30 am
STL
- MDT
1 stop4h 11m
Delta
Deal found 4/30![Delta logo]()
$300
This American Airlines deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/267:08 pm
MDT
- CMI
1 stop16h 57m
American Airlines
Wed 7/16:43 pm
CMI
- MDT
1 stop15h 23m
American Airlines
Deal found 5/1![American Airlines logo]()
$536
This United Airlines deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/155:54 pm
MDT
- MLI
1 stop5h 40m
United Airlines
Tue 5/1911:57 am
MLI
- MDT
1 stop3h 56m
United Airlines
Deal found 4/30![United Airlines logo]()
$449
This Delta deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/116:22 pm
MDT
- STL
1 stop4h 56m
Delta
Sat 6/1310:20 am
STL
- MDT
1 stop5h 34m
Delta
Deal found 5/1![Delta logo]()
$300
This United Airlines deal was found by Cheapflights users on 4/29. 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.
Wed 6/177:59 pm
MDT
- ORD
1 stop4h 27m
United Airlines
Sun 6/214:35 pm
ORD
- MDT
2 stops20h 15m
United Airlines
Deal found 4/29![United Airlines logo]()
$463
This American Airlines deal was found by Cheapflights users on 4/29. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/143:30 pm
MDT
- MLI
1 stop7h 30m
American Airlines
Thu 7/1611:43 am
MLI
- MDT
2 stops9h 27m
American Airlines
Deal found 4/29![American Airlines logo]()
$594
This Delta deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/225:34 pm
MDT
- ORD
1 stop3h 57m
Delta
Sat 6/2711:15 am
ORD
- MDT
1 stop4h 39m
Delta
Deal found 4/30![Delta logo]()
$309
Last-minute flights from Harrisburg to IllinoisDiscover last-minute flight deals from Harrisburg to Illinois. Data last updated May 2, 2026 and is based on user searches.
Discover last-minute flight deals from Harrisburg to Illinois. Data last updated May 2, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 4/28. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/711:53 am
MDT
- ORD
Nonstop2h 21m
American Airlines
Tue 5/128:23 am
ORD
- MDT
Nonstop2h 00m
American Airlines
Deal found 4/28![American Airlines logo]()
$344
This Delta deal was found by Cheapflights users on 4/28. 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.
Thu 5/76:33 pm
MDT
- ORD
1 stop6h 26m
Delta
Tue 5/125:19 pm
ORD
- MDT
1 stop4h 31m
Delta
Deal found 4/28![Delta logo]()
$364
This Delta deal was found by Cheapflights users on 4/28. 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.
Thu 5/76:20 am
MDT
- MDW
1 stop3h 23m
Delta
Tue 5/125:10 pm
MDW
- MDT
1 stop5h 41m
Delta
Deal found 4/28![Delta logo]()
$364
This American Airlines deal was found by Cheapflights users on 4/27. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/116:43 pm
MDT
- ORD
Nonstop2h 20m
American Airlines
Fri 6/198:52 pm
ORD
- MDT
Nonstop2h 07m
American Airlines
Deal found 4/27![American Airlines logo]()
$289
This Kiwi.com deal was found by Cheapflights users on 4/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/116:16 pm
MDT
- ORD
2 stops26h 35m
Multiple Airlines
Thu 5/147:33 pm
ORD
- MDT
1 stop20h 53m
Multiple Airlines
Deal found 4/27![Multiple Airlines logo]()
$301
This Delta deal was found by Cheapflights users on 4/27. 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.
Mon 5/116:33 pm
MDT
- ORD
1 stop6h 26m
Delta
Fri 6/193:22 pm
ORD
- MDT
1 stop7h 33m
Delta
Deal found 4/27![Delta logo]()
$309
This American Airlines deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/154:59 pm
MDT
- PIA
1 stop7h 53m
American Airlines
Tue 5/197:04 pm
PIA
- MDT
1 stop3h 48m
American Airlines
Deal found 4/30![American Airlines logo]()
$339
This American Airlines deal was found by Cheapflights users on 4/29. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/155:41 am
MDT
- STL
1 stop7h 06m
American Airlines
Mon 5/186:54 pm
STL
- MDT
1 stop4h 37m
American Airlines
Deal found 4/29![American Airlines logo]()
$339
This Delta deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/206:20 am
MDT
- MDW
1 stop3h 23m
Delta
Sat 5/236:36 pm
MDW
- MDT
1 stop3h 14m
Delta
Deal found 4/30![Delta logo]()
$309
This Delta deal was found by Cheapflights users on 4/28. 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.
Sat 5/236:20 am
MDT
- MDW
1 stop3h 23m
Delta
Wed 5/275:12 pm
MDW
- MDT
1 stop5h 39m
Delta
Deal found 4/28![Delta logo]()
$289
This Delta deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/275:00 pm
MDT
- STL
1 stop5h 09m
Delta
Sun 5/315:20 pm
STL
- MDT
1 stop5h 31m
Delta
Deal found 4/30![Delta logo]()
$300
This Delta deal was found by Cheapflights users on 4/28. 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.
Fri 5/296:33 pm
MDT
- STL
1 stop6h 26m
Delta
Tue 6/25:15 pm
STL
- MDT
1 stop5h 36m
Delta
Deal found 4/28![Delta logo]()
$291
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 May 2, 2026.
Search for one-way flight options from Harrisburg to Illinois. Find affordable one-way fares based on user searches. Data last updated May 2, 2026.
This Kiwi.com deal was found by Cheapflights users on 4/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/285:57 pm
MDT
- ORD
1 stop19h 40m
Multiple Airlines
Deal found 4/27![Multiple Airlines logo]()
$110
This Kiwi.com deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/256:03 pm
MDT
- ORD
1 stop30h 56m
Multiple Airlines
Deal found 4/30![Multiple Airlines logo]()
$132
This Kiwi.com deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/295:40 pm
MDT
- ORD
2 stops39h 23m
Multiple Airlines
Deal found 4/30![Multiple Airlines logo]()
$137
This Kiwi.com deal was found by Cheapflights users on 4/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/285:57 pm
MDT
- MDW
2 stops29h 05m
Multiple Airlines
Deal found 4/28![Multiple Airlines logo]()
$141
This Kiwi.com deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/245:57 pm
MDT
- ORD
1 stop19h 40m
Multiple Airlines
Deal found 5/1![Multiple Airlines logo]()
$152
This Kiwi.com deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/315:57 pm
MDT
- ORD
2 stops38h 58m
Multiple Airlines
Deal found 5/1![Multiple Airlines logo]()
$155
This Kiwi.com deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/265:58 pm
MDT
- ORD
1 stop19h 27m
Multiple Airlines
Deal found 4/30![Multiple Airlines logo]()
$158
This Kiwi.com deal was found by Cheapflights users on 4/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/156:16 pm
MDT
- ORD
1 stop15h 06m
Multiple Airlines
Deal found 4/27![Multiple Airlines logo]()
$161
This Kiwi.com deal was found by Cheapflights users on 4/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/116:16 pm
MDT
- ORD
2 stops26h 35m
Multiple Airlines
Deal found 4/27![Multiple Airlines logo]()
$163
This Kiwi.com deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/286:03 pm
MDT
- ORD
1 stop16h 19m
Multiple Airlines
Deal found 4/30![Multiple Airlines logo]()
$165
This Kiwi.com deal was found by Cheapflights users on 4/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/116:16 pm
MDT
- MDW
2 stops28h 46m
Multiple Airlines
Deal found 4/28![Multiple Airlines logo]()
$166
This Kiwi.com deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/295:29 pm
MDT
- MDW
3 stops29h 33m
Multiple Airlines
Deal found 5/1![Multiple Airlines logo]()
$207
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 May 2, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $224 (Kiwi.com) |
One-way from | $110 (Kiwi.com) |
Popular in | January |
Cheapest in | February |
Average price | $309 |
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 May 2, 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 - ORD
MDTORD
Harrisburg
Fri 7/3
5:55 pm-7:05 pm
Nonstop2h 10m
Chicago O'Hare Intl
Wed 7/8
8:40 am-1:50 pm
1 stop4h 10m
$279
HarrisburgChicago
MDT - ORD
MDTORD
Harrisburg
Fri 8/21
2:56 pm-8:17 pm
1 stop6h 21m
Chicago O'Hare Intl
Sun 8/23
7:10 am-2:09 pm
1 stop5h 59m
$289
HarrisburgChicago
MDT - ORD
MDTORD
Harrisburg
Fri 5/22
5:00 pm-8:14 pm
1 stop4h 14m
Chicago O'Hare Intl
Mon 5/25
5:30 am-11:07 am
1 stop4h 37m
$289
HarrisburgChicago
MDT - ORD
MDTORD
Harrisburg
Sat 6/27
6:22 pm-12:04 am
1 stop6h 42m
Chicago O'Hare Intl
Wed 7/1
7:01 am-11:42 am
1 stop3h 41m
$289
HarrisburgChicago
MDT - ORD
MDTORD
Harrisburg
Wed 8/12
12:30 pm-4:36 pm
1 stop5h 06m
Chicago O'Hare Intl
Wed 8/19
7:10 am-11:51 am
1 stop3h 41m
$289
HarrisburgChicago
MDT - MDW
MDTMDW
Harrisburg
Fri 8/21
2:56 pm-9:46 pm
1 stop7h 50m
Chicago Midway
Sun 8/23
6:00 am-11:36 am
1 stop4h 36m
$289
HarrisburgChicago
MDT - MDW
MDTMDW
Harrisburg
Thu 8/27
2:56 pm-9:46 pm
1 stop7h 50m
Chicago Midway
Mon 8/31
6:00 am-2:09 pm
1 stop7h 09m
$289
HarrisburgChicago
MDT - MDW
MDTMDW
Harrisburg
Thu 8/20
2:56 pm-9:46 pm
1 stop7h 50m
Chicago Midway
Sat 8/22
5:59 pm-10:44 pm
1 stop3h 45m
$289
HarrisburgChicago
MDT - MDW
MDTMDW
Harrisburg
Sat 5/23
6:20 am-8:43 am
1 stop3h 23m
Chicago Midway
Wed 5/27
5:12 pm-11:51 pm
1 stop5h 39m
$289
HarrisburgChicago
MDT - MDW
MDTMDW
Harrisburg
Wed 6/3
6:20 am-8:43 am
1 stop3h 23m
Chicago Midway
Sat 6/6
5:30 pm-11:51 pm
1 stop5h 21m
$289
Showing 1-10 of 59 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-MDW
MDT-STL
MDT-PIA
MDT-MLI
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-MDW
MDT-STL
MDT-PIA
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 81 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
What is the cheapest month to book a flight from Harrisburg to Illinois?
Currently, October is the cheapest month in which you can book a flight from Harrisburg to Illinois (average of $135). Flying from Harrisburg to Illinois in January is currently the most expensive (average of $209). 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 May 2, 2026.
It’s typically best to fly out from Harrisburg to Illinois in the evening. Doing so could potentially save you 36% on the flight price compared to flying at noon, which is usually more expensive.
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 April 25, 2026.
Travelers seeking maximum savings on their Harrisburg to Illinois flight should consider departing on Thursday evenings when fares are most often at their lowest. Wednesday at noon flights should be avoided if possible as fares are typically the most expensive at this time.
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 May 2, 2026.
The most flights from MDT to USIL are scheduled on a Friday (20 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (16 on average).
How much does it cost to fly round-trip from Harrisburg to Illinois?
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 May 2, 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.
Food
7.2
Entertainment
7.8
Crew
8.5
Boarding
8.1
Comfort
7.9
Overall
7.9
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Food
7.2
Entertainment
7.8
Crew
8.5
Boarding
8.1
Comfort
7.9
Overall
7.9
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Food
7.2
Entertainment
7.8
Crew
8.5
Boarding
8.1
Comfort
7.9
Overall
7.9
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Food
7.2
Entertainment
7.8
Crew
8.5
Boarding
8.1
Comfort
7.9
Overall
7.9
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
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.
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Alternative routes for Harrisburg to Illinois
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Complete your trip
Complete your trip to Illinois by adding a car rental and/or hotel reservation to your travel itinerary.
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Harrisburg and Illinois flights
Browse other Harrisburg and Illinois flight options. Last updated on May 2, 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 May 2, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$209 | Average$316 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$209 | Average$354 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$248 | Average$392 | FlexibilityNo cancel fee | On-timeN/A |