$93+ Cheap flights from Illinois to Pennsylvania
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 12/9. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — PHL
Dec 4 — Dec 111
Round-trip
1 adult, Economy
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Find cheap flights from Illinois to Pennsylvania 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 Pennsylvania
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Cheapest flights from Illinois to PennsylvaniaExplore the most affordable flight options available from Illinois to Pennsylvania. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 4, 2026.
Explore the most affordable flight options available from Illinois to Pennsylvania. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 4, 2026.
This Frontier deal was found by Cheapflights users on 11/3. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/259:20 pm -
Nonstop2h 10m
Thu 11/266:41 am -
2 stops17h 37m
Deal found 11/3![Frontier logo]()
$178
This CheapOair deal was found by Cheapflights users on 11/2. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/23:55 pm -
1 stop6h 14m
Mon 12/74:31 pm -
1 stop5h 58m
Deal found 11/2![Frontier logo]()
$179
This Cheapflightsfares deal was found by Cheapflights users on 11/3. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/15:35 am -
1 stop27h 20m
Tue 12/84:31 pm -
1 stop6h 29m
Deal found 11/3![Frontier logo]()
$180
This Cheapflightsfares deal was found by Cheapflights users on 11/2. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/812:28 pm -
1 stop7h 39m
Thu 12/108:40 am -
1 stop8h 26m
Deal found 11/2![Frontier logo]()
$181
This Cheapflightsfares deal was found by Cheapflights users on 11/2. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/23:55 pm -
1 stop6h 14m
Thu 12/34:38 pm -
1 stop5h 56m
Deal found 11/2![Frontier logo]()
$182
This Priceline deal was found by Cheapflights users on 11/2. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/912:28 pm -
1 stop9h 43m
Sun 1/107:16 am -
1 stop10h 10m
Deal found 11/2![Frontier logo]()
$183
This Kiwi.com deal was found by Cheapflights users on 10/31. Clicking the “Pick Dates” 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 11/279:20 pm -
Nonstop2h 10m
Tue 12/14:38 pm -
1 stop5h 57m
Deal found 10/31![Frontier logo]()
$183
This Kiwi.com deal was found by Cheapflights users on 11/2. 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.
Tue 12/13:55 pm -
1 stop20h 12m
Mon 12/76:31 pm -
1 stop28h 29m
Deal found 11/2![Frontier logo]()
$184
This Cheapflightsfares deal was found by Cheapflights users on 11/3. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/245:15 am -
1 stop23h 46m
Wed 11/256:31 pm -
Nonstop2h 44m
Deal found 11/3![Frontier logo]()
$185
This Kiwi.com deal was found by Cheapflights users on 10/31. Clicking the “Pick Dates” 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.
Tue 12/158:30 am -
1 stop11h 37m
Tue 12/227:52 pm -
1 stop10h 57m
Deal found 10/31![Frontier logo]()
$186
This Kiwi.com deal was found by Cheapflights users on 10/31. Clicking the “Pick Dates” 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 11/309:20 pm -
Nonstop2h 10m
Thu 12/106:50 pm -
Nonstop2h 39m
Deal found 10/31![Frontier logo]()
$187
This Frontier deal was found by Cheapflights users on 11/4. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/109:29 pm -
Nonstop2h 15m
Sun 12/136:45 pm -
Nonstop2h 39m
Deal found 11/4![Frontier logo]()
$188
Best flights from Illinois to PennsylvaniaDiscover carefully curated flight deals from Illinois to Pennsylvania that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated November 4, 2026.
Discover carefully curated flight deals from Illinois to Pennsylvania that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated November 4, 2026.
This Southwest deal was found by Cheapflights users on 10/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/158:10 am -
Nonstop1h 55m
Tue 12/225:25 am -
1 stop10h 20m
Deal found 10/31![Southwest logo]()
$252
This United Airlines deal was found by Cheapflights users on 11/1. 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 2/82:35 pm -
Nonstop2h 09m
Thu 2/119:39 am -
Nonstop2h 32m
Deal found 11/1![United Airlines logo]()
$257
This Delta deal was found by Cheapflights users on 11/4. 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.
Thu 1/76:00 am -
1 stop4h 46m
Thu 1/75:12 pm -
1 stop6h 05m
Deal found 11/4![Delta logo]()
$298
This American Airlines deal was found by Cheapflights users on 10/30. 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.
Wed 12/237:44 pm -
Nonstop2h 08m
Sat 1/26:00 am -
Nonstop2h 44m
Deal found 10/30![American Airlines logo]()
$368
This Kiwi.com deal was found by Cheapflights users on 10/30. 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 12/75:35 am -
1 stop13h 18m
Fri 12/113:49 pm -
2 stops31h 11m
Deal found 10/30![Multiple Airlines logo]()
$422
This Southwest deal was found by Cheapflights users on 11/1. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/1011:25 am -
Nonstop1h 50m
Mon 12/1411:45 am -
Nonstop2h 15m
Deal found 11/1![Southwest logo]()
$257
This United Airlines deal was found by Cheapflights users on 11/3. 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 11/256:42 am -
Nonstop2h 10m
Wed 11/257:40 pm -
1 stop5h 22m
Deal found 11/3![United Airlines logo]()
$267
This Southwest deal was found by Cheapflights users on 10/30. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/113:50 pm -
Nonstop1h 55m
Mon 12/1411:45 am -
Nonstop2h 15m
Deal found 10/30![Southwest logo]()
$257
This Delta deal was found by Cheapflights users on 11/1. 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.
Mon 12/217:00 am -
1 stop4h 00m
Sat 12/266:00 am -
1 stop4h 49m
Deal found 11/1![Delta logo]()
$303
This United Airlines deal was found by Cheapflights users on 11/1. 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.
Thu 1/147:50 am -
Nonstop2h 06m
Thu 1/142:41 pm -
Nonstop2h 29m
Deal found 11/1![United Airlines logo]()
$285
This Southwest deal was found by Cheapflights users on 11/1. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/111:30 am -
2 stops9h 40m
Thu 12/312:45 pm -
2 stops9h 25m
Deal found 11/1![Southwest logo]()
$266
This United Airlines deal was found by Cheapflights users on 11/2. 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.
Mon 11/309:20 pm -
Nonstop2h 06m
Mon 12/72:50 pm -
Nonstop2h 28m
Deal found 11/2![United Airlines logo]()
$291
This Delta deal was found by Cheapflights users on 11/1. 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 12/179:37 am -
1 stop4h 36m
Sun 12/206:00 am -
1 stop3h 49m
Deal found 11/1![Delta logo]()
$336
This American Airlines deal was found by Cheapflights users on 10/30. 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 11/137:20 pm -
Nonstop1h 55m
Mon 11/167:52 pm -
Nonstop2h 37m
Deal found 10/30![American Airlines logo]()
$379
This United Airlines deal was found by Cheapflights users on 11/2. 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.
Tue 1/129:20 pm -
Nonstop2h 06m
Thu 1/142:41 pm -
Nonstop2h 29m
Deal found 11/2![United Airlines logo]()
$291
This Southwest deal was found by Cheapflights users on 10/30. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/57:50 am -
2 stops11h 25m
Tue 12/85:00 am -
2 stops13h 05m
Deal found 10/30![Southwest logo]()
$293
This Delta deal was found by Cheapflights users on 10/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/209:59 am -
1 stop7h 36m
Sun 11/2211:14 am -
1 stop4h 41m
Deal found 10/31![Delta logo]()
$336
This United Airlines deal was found by Cheapflights users on 11/2. 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.
Mon 1/117:50 am -
Nonstop2h 06m
Thu 1/142:41 pm -
Nonstop2h 29m
Deal found 11/2![United Airlines logo]()
$291
This Delta deal was found by Cheapflights users on 11/4. 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.
Thu 12/177:00 am -
1 stop7h 35m
Sun 12/206:00 pm -
1 stop3h 18m
Deal found 11/4![Delta logo]()
$341
This Southwest deal was found by Cheapflights users on 11/3. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/96:10 pm -
Nonstop1h 35m
Sun 12/134:55 pm -
1 stop4h 30m
Deal found 11/3![Southwest logo]()
$326
This Delta deal was found by Cheapflights users on 11/2. 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 12/265:55 pm -
1 stop4h 20m
Sat 1/26:15 am -
1 stop4h 34m
Deal found 11/2![Delta logo]()
$359
This United Airlines deal was found by Cheapflights users on 11/1. 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.
Tue 11/249:20 pm -
Nonstop2h 06m
Sat 11/286:05 am -
Nonstop2h 23m
Deal found 11/1![United Airlines logo]()
$331
This Southwest deal was found by Cheapflights users on 11/2. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/127:40 am -
Nonstop1h 25m
Sun 12/1312:30 pm -
2 stops8h 35m
Deal found 11/2![Southwest logo]()
$331
This American Airlines deal was found by Cheapflights users on 11/3. 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.
Wed 11/115:37 pm -
1 stop5h 42m
Thu 12/33:33 pm -
2 stops9h 42m
Deal found 11/3![American Airlines logo]()
$489
This Delta deal was found by Cheapflights users on 11/1. 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.
Mon 12/215:55 pm -
1 stop4h 20m
Sat 12/266:15 am -
1 stop4h 34m
Deal found 11/1![Delta logo]()
$359
This United Airlines deal was found by Cheapflights users on 11/2. 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.
Sun 12/69:20 pm -
Nonstop2h 06m
Sat 12/125:00 am -
Nonstop2h 28m
Deal found 11/2![United Airlines logo]()
$331
This American Airlines deal was found by Cheapflights users on 11/3. 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.
Sun 11/156:02 am -
2 stops7h 53m
Fri 11/2712:49 pm -
1 stop5h 18m
Deal found 11/3![American Airlines logo]()
$495
This Southwest deal was found by Cheapflights users on 11/3. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/246:25 pm -
Nonstop2h 00m
Sun 12/277:05 pm -
Nonstop2h 20m
Deal found 11/3![Southwest logo]()
$346
This United Airlines deal was found by Cheapflights users on 11/2. 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 12/254:50 pm -
Nonstop2h 06m
Mon 12/289:47 am -
Nonstop2h 23m
Deal found 11/2![United Airlines logo]()
$331
This Delta deal was found by Cheapflights users on 11/2. 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 12/295:55 pm -
1 stop4h 04m
Sat 1/26:00 am -
1 stop4h 49m
Deal found 11/2![Delta logo]()
$365
Last-minute flights from Illinois to PennsylvaniaDiscover last-minute flight deals from Illinois to Pennsylvania. Data last updated November 4, 2026 and is based on user searches.
Discover last-minute flight deals from Illinois to Pennsylvania. Data last updated November 4, 2026 and is based on user searches.
This Cheapflightsfares deal was found by Cheapflights users on 11/3. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/245:15 am -
1 stop23h 46m
Wed 11/256:31 pm -
Nonstop2h 44m
Deal found 11/3![Frontier logo]()
$185
This Kiwi.com deal was found by Cheapflights users on 10/31. Clicking the “Pick Dates” 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 11/279:20 pm -
Nonstop2h 10m
Tue 12/14:38 pm -
1 stop5h 57m
Deal found 10/31![Frontier logo]()
$183
This Cheapflightsfares deal was found by Cheapflights users on 11/3. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/15:35 am -
1 stop27h 20m
Tue 12/84:31 pm -
1 stop6h 29m
Deal found 11/3![Frontier logo]()
$180
This Kiwi.com deal was found by Cheapflights users on 11/2. 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.
Tue 12/13:55 pm -
1 stop20h 12m
Mon 12/76:31 pm -
1 stop28h 29m
Deal found 11/2![Frontier logo]()
$184
This CheapOair deal was found by Cheapflights users on 11/2. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/23:55 pm -
1 stop6h 14m
Mon 12/74:31 pm -
1 stop5h 58m
Deal found 11/2![Frontier logo]()
$179
This Cheapflightsfares deal was found by Cheapflights users on 11/2. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/23:55 pm -
1 stop6h 14m
Thu 12/34:38 pm -
1 stop5h 56m
Deal found 11/2![Frontier logo]()
$182
This Kiwi.com deal was found by Cheapflights users on 11/4. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/54:00 pm -
1 stop6h 11m
Tue 12/84:31 pm -
1 stop6h 29m
Deal found 11/4![Frontier logo]()
$178
This Kiwi.com deal was found by Cheapflights users on 11/4. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/54:00 pm -
1 stop6h 11m
Sun 12/66:45 pm -
Nonstop2h 39m
Deal found 11/4![Frontier logo]()
$186
This Kiwi.com deal was found by Cheapflights users on 11/4. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/69:29 pm -
Nonstop2h 15m
Tue 12/84:31 pm -
1 stop6h 29m
Deal found 11/4![Frontier logo]()
$177
This Cheapflightsfares deal was found by Cheapflights users on 11/2. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/812:28 pm -
1 stop7h 39m
Thu 12/108:40 am -
1 stop8h 26m
Deal found 11/2![Frontier logo]()
$181
This Priceline deal was found by Cheapflights users on 11/2. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/912:28 pm -
1 stop9h 43m
Sun 1/107:16 am -
1 stop10h 10m
Deal found 11/2![Frontier logo]()
$183
This Frontier deal was found by Cheapflights users on 11/4. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/198:13 pm -
Nonstop2h 13m
Tue 12/221:38 pm -
Nonstop2h 33m
Deal found 11/4![Frontier logo]()
$187
One-way flights from Illinois to PennsylvaniaSearch for one-way flight options from Illinois to Pennsylvania. Find affordable one-way fares based on user searches. Data last updated November 4, 2026.
Search for one-way flight options from Illinois to Pennsylvania. Find affordable one-way fares based on user searches. Data last updated November 4, 2026.
This CheapOair deal was found by Cheapflights users on 11/1. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/912:28 pm -
1 stop7h 39m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/1![Frontier logo]()
$93
This CheapOair deal was found by Cheapflights users on 11/2. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/139:34 pm -
Nonstop2h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/2![Frontier logo]()
$93
This Super.com deal was found by Cheapflights users on 11/2. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/212:28 pm -
1 stop9h 41m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/2![Frontier logo]()
$95
This Super.com deal was found by Cheapflights users on 11/2. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/38:30 am -
1 stop9h 02m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/2![Frontier logo]()
$95
This Super.com deal was found by Cheapflights users on 10/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 1/241:18 pm -
1 stop10h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/31![Frontier logo]()
$96
This Kiwi.com deal was found by Cheapflights users on 10/31. Clicking the “Pick Dates” 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.
Tue 12/13:55 pm -
1 stop20h 12m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/31![Frontier logo]()
$96
This Super.com deal was found by Cheapflights users on 11/1. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/1612:28 pm -
1 stop7h 39m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/1![Frontier logo]()
$98
This Super.com deal was found by Cheapflights users on 11/4. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/168:30 am -
1 stop7h 56m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/4![Frontier logo]()
$98
This Kiwi.com deal was found by Cheapflights users on 11/4. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/194:45 pm -
1 stop5h 41m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/4![Frontier logo]()
$99
This Southwest deal was found by Cheapflights users on 11/1. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/1611:25 am -
Nonstop1h 50m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/1![Southwest logo]()
$100
This United Airlines deal was found by Cheapflights users on 11/3. 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 12/98:59 am -
Nonstop2h 14m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/3![United Airlines logo]()
$100
This Cheapflightsfares deal was found by Cheapflights users on 10/30. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/105:02 pm -
1 stop5h 38m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/30![Frontier logo]()
$101
Find flight deals from Illinois to Pennsylvania
Keep the following information in mind while searching for Illinois to Pennsylvania flight deals. Data was last updated November 4, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $178 (Frontier) |
One-way from | $93 (CheapOair) |
Popular in | March |
Cheapest in | January |
Average price | $310 |
Good round-trip deal | $272 or less |
Good one-way deal | $128 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Illinois to Pennsylvania 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 November 4, 2026.
Use the filters below to find and compare flights from Illinois to Pennsylvania that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
ChicagoPhiladelphia
MDW Chicago Midway - PHL Philadelphia
MDWPHL
Chicago Midway
Wed 12/2
6:25 pm-9:25 pm
Nonstop2h 00m
Philadelphia
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$100
ChicagoPhiladelphia
ORD Chicago O'Hare Intl - PHL Philadelphia
ORDPHL
Chicago O'Hare Intl
Wed 12/9
10:40 am-1:55 pm
Nonstop2h 15m
Philadelphia
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$100
ChicagoPhiladelphia
MDW Chicago Midway - PHL Philadelphia
MDWPHL
Chicago Midway
Wed 12/16
11:25 am-2:15 pm
Nonstop1h 50m
Philadelphia
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$100
ChicagoPhiladelphia
ORD Chicago O'Hare Intl - PHL Philadelphia
ORDPHL
Chicago O'Hare Intl
Tue 12/15
10:40 am-1:55 pm
Nonstop2h 15m
Philadelphia
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$100
ChicagoPhiladelphia
ORD Chicago O'Hare Intl - PHL Philadelphia
ORDPHL
Chicago O'Hare Intl
Wed 2/3
8:40 am-2:14 pm
1 stop4h 34m
Philadelphia
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$110
ChicagoPhiladelphia
MDW Chicago Midway - PHL Philadelphia
MDWPHL
Chicago Midway
Wed 12/9
10:40 am-11:11 pm
2 stops11h 31m
Philadelphia
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$112
ChicagoPhiladelphia
MDW Chicago Midway - PHL Philadelphia
MDWPHL
Chicago Midway
Thu 12/10
11:25 am-2:15 pm
Nonstop1h 50m
Philadelphia
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$129
ChicagoPhiladelphia
MDW Chicago Midway - PHL Philadelphia
MDWPHL
Chicago Midway
Thu 11/26
1:50 pm-4:45 pm
Nonstop1h 55m
Philadelphia
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$129
ChicagoPhiladelphia
ORD Chicago O'Hare Intl - PHL Philadelphia
ORDPHL
Chicago O'Hare Intl
Thu 11/26
7:07 am-10:17 am
Nonstop2h 10m
Philadelphia
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$129
ChicagoPhiladelphia
MDW Chicago Midway - PHL Philadelphia
MDWPHL
Chicago Midway
Mon 1/25
8:10 am-11:15 am
Nonstop2h 05m
Philadelphia
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$129
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Illinois to Pennsylvania
Have a flexible travel schedule? Discover the best time to fly to Pennsylvania from Illinois with our price prediction graph.
MDW-PHL
ORD-PHL
ORD-AVP
ORD-ABE
ORD-LNS
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 Pennsylvania
USIL-USPA
MDW-PHL
ORD-PHL
ORD-AVP
ORD-ABE
What is the cheapest month to book a flight from Illinois to Pennsylvania?
Currently, January is the cheapest month in which you can book a flight from Illinois to Pennsylvania (average of $278). Flying from Illinois to Pennsylvania in October is currently the most expensive (average of $398). 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 PA?
Find hourly flight availability from Illinois to Pennsylvania. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 4, 2026.
It’s optimal to fly from Illinois to Pennsylvania in the evening. By choosing this option you can save up to 22% on the cost of your flight, compared to a flight in the afternoon.
Weekly flight availability from Illinois to Pennsylvania
Explore weekly flight availability from Illinois to Pennsylvania. 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 November 4, 2026.
The most flights from USIL to USPA are scheduled on a Monday (43 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (19 on average).
How much does it cost to fly round-trip from Illinois to Pennsylvania?
Airfare is below average for this route at the moment.
Illinois to Pennsylvania flights typically cost between $222 and $441 in November.The cheapest round-trip price found within the last 5 days was $178 on Frontier (Nov 25-Nov 26).
How far ahead should I book a flight from Illinois to Pennsylvania?
The price you pay for your flight from Illinois to Pennsylvania may vary depending on when you book. For the best chance of a lower fare, look to book 56 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 Illinois to Pennsylvania?
Use this chart to determine the cheapest time to fly round-trip from Illinois to Pennsylvania. Price data was last updated on October 31, 2026.
Travelers seeking maximum savings on their Illinois to Pennsylvania flight should consider departing on Thursday mornings when fares are most often at their lowest. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.
Reviews of airlines servicing Pennsylvania
Get insights into the airlines that provide service to Pennsylvania. 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 Pennsylvania. Reviews last updated November 4, 2026.
Read through reviews of airlines operating flights from Illinois to Pennsylvania, such as Southwest,Delta, andUnited Airlines. 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
8.6
Food
7.0
Comfort
8.0
Overall
8.0
Entertainment
7.5
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentSarah,Aug 2024
MDW - AUS
Crew
8.6
Food
7.0
Comfort
8.0
Overall
8.0
Entertainment
7.5
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentSarah,Aug 2024
MDW - AUS
Crew
8.6
Food
7.0
Comfort
8.0
Overall
8.0
Entertainment
7.5
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentSarah,Aug 2024
MDW - AUS
Crew
8.6
Food
7.0
Comfort
8.0
Overall
8.0
Entertainment
7.5
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentSarah,Aug 2024
MDW - AUS
Crew
8.6
Food
7.0
Comfort
8.0
Overall
8.0
Entertainment
7.5
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentSarah,Aug 2024
MDW - AUS
Crew
8.6
Food
7.0
Comfort
8.0
Overall
8.0
Entertainment
7.5
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentSarah,Aug 2024
MDW - AUS
Related info for your journey
Find useful and relevant information for your journey from Illinois to Pennsylvania. 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
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Alternative routes for Illinois to Pennsylvania
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Pennsylvania by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Illinois to Pennsylvania by cabin class
Find flights from Illinois to Pennsylvania, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Illinois and Pennsylvania flights
Browse other Illinois and Pennsylvania flight options. Last updated on November 4, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Find a return flight route from Pennsylvania
Find the right flight back to Illinois after your stay in Pennsylvania
Illinois to Pennsylvania flights
Consider these flights traveling from Illinois to Pennsylvania.
Top 5 airlines flying from Illinois to Pennsylvania
Discover the top 5 airlines that operate flights from Illinois to Pennsylvania. 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 November 4, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$69 | Average$208 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$137 | Average$380 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$137 | Average$405 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$172 | Average$404 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$250 | Average$385 | FlexibilityNo cancel fee | On-timeN/A |