$132+ Cheap flights from Illinois to Harrisburg (MDT)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/18. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — MDT
Oct 23 — Oct 301
Round-trip
1 adult, Economy
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Find cheap flights from Illinois to Harrisburg 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
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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 Illinois to Harrisburg
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Cheapest flights from Illinois to HarrisburgExplore the most affordable flight options available from Illinois to Harrisburg. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 23, 2026.
Explore the most affordable flight options available from Illinois to Harrisburg. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 23, 2026.
This American Airlines deal was found by Cheapflights users on 9/22. 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 10/244:05 pm -
1 stop5h 14m
Tue 10/2712:10 pm -
1 stop6h 55m
Deal found 9/22![American Airlines logo]()
$300
This American Airlines deal was found by Cheapflights users on 9/19. 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 10/168:22 am -
Nonstop1h 57m
Sun 10/186:08 am -
Nonstop2h 21m
Deal found 9/19![American Airlines logo]()
$319
This American Airlines deal was found by Cheapflights users on 9/22. 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 10/157:20 pm -
Nonstop1h 59m
Sun 10/186:08 am -
Nonstop2h 21m
Deal found 9/22![American Airlines logo]()
$320
This American Airlines deal was found by Cheapflights users on 9/22. 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 11/266:29 am -
1 stop7h 05m
Mon 11/307:55 pm -
Nonstop2h 40m
Deal found 9/22![American Airlines logo]()
$329
This United Airlines deal was found by Cheapflights users on 9/19. 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 10/96:29 pm -
Nonstop2h 03m
Tue 10/132:08 pm -
Nonstop2h 11m
Deal found 9/19![United Airlines logo]()
$339
This United Airlines deal was found by Cheapflights users on 9/22. 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 10/66:15 am -
1 stop6h 12m
Wed 10/146:30 am -
1 stop4h 36m
Deal found 9/22![United Airlines logo]()
$354
This American Airlines deal was found by Cheapflights users on 9/21. 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 10/296:14 am -
1 stop4h 03m
Sat 11/79:36 am -
2 stops8h 31m
Deal found 9/21![American Airlines logo]()
$359
This United Airlines deal was found by Cheapflights users on 9/22. 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 10/96:29 pm -
Nonstop2h 03m
Sun 10/116:25 am -
Nonstop2h 11m
Deal found 9/22![United Airlines logo]()
$359
This American Airlines deal was found by Cheapflights users on 9/18. 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 12/2111:55 am -
Nonstop2h 12m
Sat 12/268:14 pm -
Nonstop2h 34m
Deal found 9/18![American Airlines logo]()
$369
This Delta deal was found by Cheapflights users on 9/20. 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 12/177:05 am -
1 stop3h 35m
Tue 1/126:10 am -
2 stops16h 27m
Deal found 9/20![Delta logo]()
$387
This United Airlines deal was found by Cheapflights users on 9/20. 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 10/16:50 am -
Nonstop2h 01m
Sun 10/46:25 am -
Nonstop2h 11m
Deal found 9/20![United Airlines logo]()
$394
This United Airlines deal was found by Cheapflights users on 9/21. 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 10/36:15 am -
1 stop6h 12m
Sat 10/106:30 am -
1 stop4h 36m
Deal found 9/21![United Airlines logo]()
$415
Best flights from Illinois to HarrisburgDiscover carefully curated flight deals from Illinois to Harrisburg that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 23, 2026.
Discover carefully curated flight deals from Illinois to Harrisburg that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 23, 2026.
This American Airlines deal was found by Cheapflights users on 9/22. 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 10/244:05 pm -
1 stop5h 14m
Tue 10/2712:10 pm -
1 stop6h 55m
Deal found 9/22![American Airlines logo]()
$300
This United Airlines deal was found by Cheapflights users on 9/20. 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 10/311:55 pm -
Nonstop1h 59m
Mon 11/22:10 pm -
Nonstop2h 18m
Deal found 9/20![United Airlines logo]()
$319
This Delta deal was found by Cheapflights users on 9/22. 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 10/165:29 pm -
1 stop4h 29m
Wed 10/216:06 pm -
1 stop6h 51m
Deal found 9/22![Delta logo]()
$339
This American Airlines deal was found by Cheapflights users on 9/23. 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 10/307:20 pm -
Nonstop1h 59m
Sat 11/712:11 pm -
Nonstop2h 19m
Deal found 9/23![American Airlines logo]()
$319
This United Airlines deal was found by Cheapflights users on 9/20. 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 10/311:30 pm -
1 stop4h 06m
Sun 11/18:13 pm -
1 stop4h 48m
Deal found 9/20![United Airlines logo]()
$339
This United Airlines deal was found by Cheapflights users on 9/19. 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 10/96:29 pm -
Nonstop2h 03m
Tue 10/132:08 pm -
Nonstop2h 11m
Deal found 9/19![United Airlines logo]()
$339
This United Airlines deal was found by Cheapflights users on 9/23. 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 10/231:55 pm -
Nonstop1h 57m
Sun 10/256:15 am -
1 stop4h 30m
Deal found 9/23![United Airlines logo]()
$342
This American Airlines deal was found by Cheapflights users on 9/22. 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 10/166:00 am -
1 stop4h 19m
Mon 10/198:09 pm -
1 stop5h 02m
Deal found 9/22![American Airlines logo]()
$418
This United Airlines deal was found by Cheapflights users on 9/21. 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 10/96:29 pm -
Nonstop2h 03m
Sun 10/115:54 pm -
Nonstop2h 11m
Deal found 9/21![United Airlines logo]()
$359
This United Airlines deal was found by Cheapflights users on 9/22. 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 10/86:50 am -
Nonstop2h 01m
Sun 10/116:15 am -
1 stop4h 23m
Deal found 9/22![United Airlines logo]()
$369
This American Airlines deal was found by Cheapflights users on 9/21. 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 10/36:00 am -
2 stops11h 26m
Sat 10/108:22 am -
2 stops9h 37m
Deal found 9/21![American Airlines logo]()
$511
This United Airlines deal was found by Cheapflights users on 9/21. 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 10/36:15 am -
1 stop6h 12m
Sat 10/106:30 am -
1 stop4h 36m
Deal found 9/21![United Airlines logo]()
$415
This American Airlines deal was found by Cheapflights users on 9/22. 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 10/712:38 pm -
2 stops9h 04m
Sun 10/116:08 am -
1 stop7h 00m
Deal found 9/22![American Airlines logo]()
$528
This United Airlines deal was found by Cheapflights users on 9/22. 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 10/156:29 pm -
Nonstop2h 03m
Sun 10/186:25 am -
Nonstop2h 11m
Deal found 9/22![United Airlines logo]()
$419
This American Airlines deal was found by Cheapflights users on 9/23. 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 10/212:30 pm -
2 stops7h 29m
Sun 10/258:09 pm -
1 stop4h 50m
Deal found 9/23![American Airlines logo]()
$532
This United Airlines deal was found by Cheapflights users on 9/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/141:55 pm -
Nonstop1h 59m
Sun 11/156:15 am -
1 stop6h 24m
Deal found 9/23![United Airlines logo]()
$429
This American Airlines deal was found by Cheapflights users on 9/19. 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 10/86:14 am -
1 stop4h 05m
Sun 10/118:09 pm -
1 stop5h 01m
Deal found 9/19![American Airlines logo]()
$577
This United Airlines deal was found by Cheapflights users on 9/20. 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 1/2610:40 am -
1 stop7h 25m
Sat 1/308:32 am -
1 stop6h 28m
Deal found 9/20![United Airlines logo]()
$439
This American Airlines deal was found by Cheapflights users on 9/19. 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 10/2312:38 pm -
2 stops9h 04m
Mon 10/266:08 am -
1 stop7h 00m
Deal found 9/19![American Airlines logo]()
$694
This American Airlines deal was found by Cheapflights users on 9/22. 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 10/92:59 pm -
1 stop6h 20m
Sun 10/118:09 pm -
1 stop5h 00m
Deal found 9/22![American Airlines logo]()
$707
This United Airlines deal was found by Cheapflights users on 9/22. 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 10/168:25 am -
2 stops28h 34m
Mon 10/196:15 am -
2 stops17h 28m
Deal found 9/22![United Airlines logo]()
$1,406
Last-minute flights from Illinois to HarrisburgDiscover last-minute flight deals from Illinois to Harrisburg. Data last updated September 23, 2026 and is based on user searches.
Discover last-minute flight deals from Illinois to Harrisburg. Data last updated September 23, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 9/19. 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 9/295:30 am -
1 stop4h 33m
Sat 10/36:10 am -
1 stop5h 27m
Deal found 9/19![Delta logo]()
$414
This United Airlines deal was found by Cheapflights users on 9/20. 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 10/16:50 am -
Nonstop2h 01m
Sun 10/46:25 am -
Nonstop2h 11m
Deal found 9/20![United Airlines logo]()
$394
This United Airlines deal was found by Cheapflights users on 9/21. 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 10/36:15 am -
1 stop6h 12m
Sat 10/106:30 am -
1 stop4h 36m
Deal found 9/21![United Airlines logo]()
$415
This United Airlines deal was found by Cheapflights users on 9/22. 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 10/66:15 am -
1 stop6h 12m
Tue 10/135:54 pm -
1 stop6h 04m
Deal found 9/22![United Airlines logo]()
$354
This American Airlines deal was found by Cheapflights users on 9/21. 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 10/62:00 pm -
1 stop7h 42m
Sat 10/1012:18 pm -
1 stop6h 16m
Deal found 9/21![American Airlines logo]()
$379
This United Airlines deal was found by Cheapflights users on 9/19. 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 10/96:29 pm -
Nonstop2h 03m
Sun 10/116:25 am -
Nonstop2h 11m
Deal found 9/19![United Airlines logo]()
$339
This American Airlines deal was found by Cheapflights users on 9/22. 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 10/157:20 pm -
Nonstop1h 59m
Sun 10/186:08 am -
Nonstop2h 21m
Deal found 9/22![American Airlines logo]()
$320
This United Airlines deal was found by Cheapflights users on 9/21. 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 10/156:29 pm -
Nonstop2h 03m
Sun 10/186:15 am -
1 stop4h 23m
Deal found 9/21![United Airlines logo]()
$329
This American Airlines deal was found by Cheapflights users on 9/19. 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 10/168:22 am -
Nonstop1h 57m
Sun 10/186:08 am -
Nonstop2h 21m
Deal found 9/19![American Airlines logo]()
$319
This American Airlines deal was found by Cheapflights users on 9/22. 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 10/166:00 am -
1 stop4h 19m
Mon 10/198:09 pm -
1 stop5h 02m
Deal found 9/22![American Airlines logo]()
$418
This American Airlines deal was found by Cheapflights users on 9/22. 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 10/244:05 pm -
1 stop5h 14m
Tue 10/2712:10 pm -
1 stop6h 55m
Deal found 9/22![American Airlines logo]()
$300
This American Airlines deal was found by Cheapflights users on 9/21. 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 10/296:14 am -
1 stop4h 03m
Sat 11/79:36 am -
2 stops8h 31m
Deal found 9/21![American Airlines logo]()
$359
One-way flights from Illinois to HarrisburgSearch for one-way flight options from Illinois to Harrisburg. Find affordable one-way fares based on user searches. Data last updated September 23, 2026.
Search for one-way flight options from Illinois to Harrisburg. Find affordable one-way fares based on user searches. Data last updated September 23, 2026.
This Kiwi.com deal was found by Cheapflights users on 9/19. 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.
Wed 11/187:15 am -
2 stops30h 56m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/19![Multiple Airlines logo]()
$132
This Kiwi.com deal was found by Cheapflights users on 9/19. 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.
Wed 12/168:15 am -
2 stops27h 16m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/19![Multiple Airlines logo]()
$157
This Kiwi.com deal was found by Cheapflights users on 9/19. 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 11/196:30 am -
2 stops32h 40m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/19![Multiple Airlines logo]()
$195
This Kiwi.com deal was found by Cheapflights users on 9/21. 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.
Wed 9/3012:30 pm -
2 stops19h 23m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/21![Multiple Airlines logo]()
$210
This Kiwi.com deal was found by Cheapflights users on 9/22. 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.
Wed 10/218:04 am -
3 stops34h 57m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/22![Multiple Airlines logo]()
$211
This KAYAK deal was found by Cheapflights users on 9/23. 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.
Thu 10/15:02 am -
1 stop5h 21m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/23![American Airlines logo]()
$340
Find flight deals from Illinois to Harrisburg
Keep the following information in mind while searching for Illinois to Harrisburg flight deals. Data was last updated September 23, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $300 (American Airlines) |
One-way from | $132 (Kiwi.com) |
Popular in | July |
Cheapest in | May |
Average price | $437 |
Cheapflights Fare Finder
Customize your flight search to find flights from Illinois to Harrisburg 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 September 23, 2026.
Use the filters below to find and compare flights from Illinois to Harrisburg that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Quickest round-trip
ChicagoHarrisburg
ORD Chicago O'Hare Intl - MDT Harrisburg
ORDMDT
Chicago O'Hare Intl
Sat 11/21
6:55 am-9:53 am
Nonstop1h 58m
Harrisburg
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$279
ChicagoHarrisburg
ORD Chicago O'Hare Intl - MDT Harrisburg
ORDMDT
Chicago O'Hare Intl
Sun 11/22
6:20 pm-9:33 pm
Nonstop2h 13m
Harrisburg
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$279
ChicagoHarrisburg
ORD Chicago O'Hare Intl - MDT Harrisburg
ORDMDT
Chicago O'Hare Intl
Mon 11/16
3:55 pm-6:57 pm
Nonstop2h 02m
Harrisburg
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$279
ChicagoHarrisburg
ORD Chicago O'Hare Intl - MDT Harrisburg
ORDMDT
Chicago O'Hare Intl
Mon 12/28
6:13 pm-9:15 pm
Nonstop2h 02m
Harrisburg
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$279
ChicagoHarrisburg
ORD Chicago O'Hare Intl - MDT Harrisburg
ORDMDT
Chicago O'Hare Intl
Sat 10/24
6:50 am-9:51 am
Nonstop2h 01m
Harrisburg
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$279
ChicagoHarrisburg
ORD Chicago O'Hare Intl - MDT Harrisburg
ORDMDT
Chicago O'Hare Intl
Sat 10/17
6:58 pm-10:01 pm
Nonstop2h 03m
Harrisburg
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$279
ChicagoHarrisburg
ORD Chicago O'Hare Intl - MDT Harrisburg
ORDMDT
Chicago O'Hare Intl
Wed 12/23
6:50 am-9:50 am
Nonstop2h 00m
Harrisburg
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$279
ChicagoHarrisburg
ORD Chicago O'Hare Intl - MDT Harrisburg
ORDMDT
Chicago O'Hare Intl
Sat 12/19
7:45 pm-10:47 pm
Nonstop2h 02m
Harrisburg
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$279
ChicagoHarrisburg
ORD Chicago O'Hare Intl - MDT Harrisburg
ORDMDT
Chicago O'Hare Intl
Sun 11/15
3:55 pm-6:57 pm
Nonstop2h 02m
Harrisburg
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$279
ChicagoHarrisburg
ORD Chicago O'Hare Intl - MDT Harrisburg
ORDMDT
Chicago O'Hare Intl
Sun 12/20
6:13 pm-9:15 pm
Nonstop2h 02m
Harrisburg
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$279
Showing 1-10 of 33 resultsSorted by cheapest first
Best time to book a flight from Illinois to Harrisburg
Have a flexible travel schedule? Discover the best time to fly to Harrisburg from Illinois with our price prediction graph.
CMI-MDT
ORD-MDT
PIA-MDT
MLI-MDT
BMI-MDT
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 Harrisburg
USIL-MDT
CMI-MDT
ORD-MDT
PIA-MDT
MLI-MDT
What is the cheapest month to book a flight from Illinois to Harrisburg?
Currently, December is the cheapest month in which you can book a flight from Illinois to Harrisburg (average of $308). Flying from Illinois to Harrisburg in July is currently the most expensive (average of $515). 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 IL to MDT?
Find hourly flight availability from Illinois to Harrisburg. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 23, 2026.
Unlike in the afternoon, when flights are generally more expensive, you can save up to 21% on flights from Illinois to Harrisburg by exploring options for tickets in the evening.
Weekly flight availability from Illinois to Harrisburg
Explore weekly flight availability from Illinois to Harrisburg. 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 September 23, 2026.
The most flights from USIL to MDT are scheduled on a Tuesday (15 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (8 on average).
How much does it cost to fly round-trip from Illinois to Harrisburg?
Airfare is typical for this route at the moment.
Illinois to Harrisburg flights typically cost between $286 and $504 in October.The cheapest round-trip price found within the last 5 days was $319 on United Airlines (Oct 16-Oct 18).
How far ahead should I book a flight from Illinois to Harrisburg?
To ensure you get the cheapest price possible for a flight from Illinois to Harrisburg, you should look to book at least 64 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
What is the cheapest day to fly from Illinois to Harrisburg?
Use this chart to determine the cheapest time to fly round-trip from Illinois to Harrisburg. Price data was last updated on September 19, 2026.
Travelers seeking maximum savings on their Illinois to Harrisburg flight should consider departing on Wednesday at noon when fares are most often at their lowest. Tuesday evenings flights should be avoided if possible as fares are typically the most expensive at this time.
Related info for your journey
Find useful and relevant information for your journey from Illinois to Harrisburg. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Harrisburg?
Book flights to Harrisburg if you plan to visit one of these locationsHershey
Mechanicsburg
Camp Hill
Carlisle
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Alternative routes for Illinois to Harrisburg
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Harrisburg by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Illinois to Harrisburg by cabin class
Find flights from Illinois to Harrisburg, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Illinois and Harrisburg flights
Browse other Illinois and Harrisburg flight options. Last updated on September 23, 2026.
Popular flight searches
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Illinois to Harrisburg flights
Consider these flights traveling from Illinois to Harrisburg.
Top 2 airlines flying from Illinois to Harrisburg
Discover the top 2 airlines that operate flights from Illinois to Harrisburg. 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 7,457,451 searches. Data last updated September 23, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$209 | Average$340 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$209 | Average$400 | FlexibilityNo cancel fee | On-time69% |