$73+ Cheap flights from Pennsylvania 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 5/27. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — ORD
Jun 2 — Jun 91
Round-trip
1 adult, Economy
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Cheapest flights from Pennsylvania to IllinoisExplore the most affordable flight options available from Pennsylvania to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 3, 2026.
Explore the most affordable flight options available from Pennsylvania to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 3, 2026.
This Priceline 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/18:42 pm
LGA
- ORD
Nonstop2h 38m
Multiple Airlines
Tue 6/21:50 pm
ORD
- LGA
1 stop8h 24m
Multiple Airlines
Deal found 4/28![Multiple Airlines logo]()
$150
This Flightnetwork 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/18:47 pm
LGA
- ORD
Nonstop2h 38m
Spirit Airlines
Thu 6/116:10 am
ORD
- LGA
1 stop12h 42m
Spirit Airlines
Deal found 4/30![Spirit Airlines logo]()
$151
This Expedia 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/98:47 pm
LGA
- ORD
Nonstop2h 38m
Spirit Airlines
Tue 6/165:05 am
ORD
- LGA
1 stop9h 53m
Spirit Airlines
Deal found 4/29![Spirit Airlines logo]()
$152
This Cheapflightsfares 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/108:47 pm
LGA
- ORD
Nonstop2h 38m
Spirit Airlines
Fri 6/197:07 pm
ORD
- LGA
1 stop13h 53m
Spirit Airlines
Deal found 5/1![Spirit Airlines logo]()
$154
This CheapOair 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/28:47 pm
LGA
- ORD
Nonstop2h 38m
Multiple Airlines
Fri 6/51:29 pm
ORD
- LGA
1 stop6h 27m
Multiple Airlines
Deal found 4/30![Multiple Airlines logo]()
$155
This Cheapflightsfares 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/98:47 pm
LGA
- ORD
Nonstop2h 38m
Spirit Airlines
Thu 6/116:10 am
ORD
- LGA
1 stop12h 42m
Spirit Airlines
Deal found 4/30![Spirit Airlines logo]()
$156
This Mytrip 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/98:47 pm
LGA
- ORD
Nonstop2h 38m
Spirit Airlines
Wed 6/105:05 am
ORD
- LGA
1 stop9h 53m
Spirit Airlines
Deal found 4/30![Spirit Airlines logo]()
$157
This Mytrip 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/22:45 pm
EWR
- ORD
Nonstop2h 26m
Spirit Airlines
Sat 7/45:06 pm
ORD
- EWR
Nonstop2h 22m
Spirit Airlines
Deal found 4/28![Spirit Airlines logo]()
$158
This Expedia 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/136:29 pm
LGA
- ORD
Nonstop2h 42m
Spirit Airlines
Fri 5/151:49 pm
ORD
- LGA
Nonstop2h 11m
Spirit Airlines
Deal found 4/29![Spirit Airlines logo]()
$159
This Expedia 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/2610:00 pm
LGA
- ORD
1 stop10h 55m
Frontier
Fri 5/295:11 pm
ORD
- LGA
1 stop22h 00m
Frontier
Deal found 4/30![Frontier logo]()
$160
This Cheapflightsfares 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/285:01 pm
EWR
- ORD
Nonstop2h 37m
Spirit Airlines
Thu 6/412:54 pm
ORD
- EWR
Nonstop2h 05m
Spirit Airlines
Deal found 4/30![Spirit Airlines logo]()
$163
This Expedia 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/206:29 pm
LGA
- ORD
Nonstop2h 42m
Spirit Airlines
Thu 6/49:20 am
ORD
- LGA
1 stop8h 40m
Spirit Airlines
Deal found 4/30![Spirit Airlines logo]()
$163
Best flights from Pennsylvania to IllinoisDiscover carefully curated flight deals from Pennsylvania to Illinois that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated May 3, 2026.
Discover carefully curated flight deals from Pennsylvania to Illinois that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated May 3, 2026.
This Spirit 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 Spirit is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/1010:59 am
LGA
- ORD
1 stop13h 16m
Spirit Airlines
Fri 6/121:49 pm
ORD
- LGA
Nonstop2h 11m
Spirit Airlines
Deal found 4/28![Spirit Airlines logo]()
$157
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 7/257:35 pm
JFK
- ORD
Nonstop3h 17m
Delta
Wed 8/56:00 am
ORD
- JFK
Nonstop2h 24m
Delta
Deal found 4/30![Delta logo]()
$177
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.
Tue 7/147:16 am
EWR
- ORD
Nonstop2h 44m
United Airlines
Wed 7/156:00 am
ORD
- EWR
Nonstop2h 12m
United Airlines
Deal found 4/29![United Airlines logo]()
$177
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/73:55 pm
LGA
- MDW
Nonstop2h 50m
Southwest
Tue 7/77:45 pm
MDW
- LGA
Nonstop2h 10m
Southwest
Deal found 4/29![Southwest logo]()
$177
This JetBlue deal was found by Cheapflights users on 5/2. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/287:00 am
JFK
- ORD
Nonstop2h 45m
JetBlue
Wed 7/89:39 am
ORD
- JFK
Nonstop2h 16m
JetBlue
Deal found 5/2![JetBlue logo]()
$192
This KAYAK 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/291:30 pm
EWR
- ORD
1 stop7h 21m
American Airlines
Fri 7/318:09 pm
ORD
- EWR
Nonstop2h 21m
American Airlines
Deal found 4/30![American Airlines logo]()
$293
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 7/257:35 pm
JFK
- ORD
Nonstop3h 17m
Delta
Wed 7/296:00 am
ORD
- JFK
Nonstop2h 24m
Delta
Deal found 4/29![Delta logo]()
$177
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.
Sat 6/207:12 pm
EWR
- ORD
Nonstop2h 48m
United Airlines
Sat 7/256:00 am
ORD
- EWR
Nonstop2h 12m
United Airlines
Deal found 5/1![United Airlines logo]()
$177
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 6/202:50 pm
LGA
- ORD
Nonstop3h 00m
Delta
Tue 6/235:45 pm
ORD
- LGA
Nonstop2h 22m
Delta
Deal found 5/1![Delta logo]()
$177
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.
Sat 6/207:00 am
LGA
- ORD
Nonstop2h 29m
United Airlines
Sat 7/253:00 pm
ORD
- LGA
Nonstop2h 22m
United Airlines
Deal found 5/1![United Airlines logo]()
$177
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/236:05 pm
LGA
- MDW
Nonstop2h 25m
Southwest
Sun 5/245:20 am
MDW
- LGA
Nonstop2h 00m
Southwest
Deal found 5/1![Southwest logo]()
$197
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 7/45:55 pm
LGA
- ORD
Nonstop3h 07m
Delta
Tue 7/77:00 am
ORD
- LGA
Nonstop2h 14m
Delta
Deal found 4/29![Delta logo]()
$177
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/159:30 pm
LGA
- MDW
Nonstop2h 25m
Southwest
Tue 6/165:15 am
MDW
- LGA
Nonstop2h 00m
Southwest
Deal found 4/29![Southwest logo]()
$197
This Spirit 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 Spirit is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/115:01 pm
EWR
- ORD
Nonstop2h 37m
Spirit Airlines
Sat 6/135:05 am
ORD
- EWR
1 stop11h 42m
Spirit Airlines
Deal found 4/28![Spirit Airlines logo]()
$222
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 7/108:45 pm
LGA
- ORD
Nonstop2h 51m
Delta
Mon 7/1310:30 am
ORD
- LGA
Nonstop2h 18m
Delta
Deal found 5/1![Delta logo]()
$177
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/236:05 pm
LGA
- MDW
Nonstop2h 25m
Southwest
Wed 5/274:40 pm
MDW
- LGA
1 stop5h 20m
Southwest
Deal found 4/28![Southwest logo]()
$202
This United Airlines deal was found by Cheapflights users on 5/2. 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 6/26:00 am
LGA
- ORD
1 stop4h 36m
United Airlines
Tue 6/96:00 pm
ORD
- LGA
Nonstop2h 25m
United Airlines
Deal found 5/2![United Airlines logo]()
$207
This JetBlue 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/248:00 am
JFK
- ORD
Nonstop2h 54m
JetBlue
Thu 5/288:50 am
ORD
- JFK
1 stop7h 39m
JetBlue
Deal found 4/30![JetBlue logo]()
$265
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 7/236:00 am
LGA
- ORD
Nonstop2h 32m
Delta
Sat 7/257:00 am
ORD
- LGA
Nonstop2h 14m
Delta
Deal found 4/28![Delta logo]()
$187
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.
Tue 6/99:40 pm
EWR
- ORD
Nonstop2h 50m
United Airlines
Thu 6/116:00 am
ORD
- EWR
Nonstop2h 12m
United Airlines
Deal found 4/29![United Airlines logo]()
$217
This Southwest deal was found by Cheapflights users on 5/2. 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 5/2310:55 am
LGA
- ORD
1 stop5h 35m
Southwest
Sat 5/301:55 pm
ORD
- LGA
1 stop7h 15m
Southwest
Deal found 5/2![Southwest logo]()
$217
This JetBlue deal was found by Cheapflights users on 5/2. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/291:28 pm
JFK
- ORD
1 stop6h 57m
JetBlue
Wed 7/89:39 am
ORD
- JFK
Nonstop2h 16m
JetBlue
Deal found 5/2![JetBlue logo]()
$285
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 6/123:25 pm
EWR
- MDW
1 stop7h 52m
Delta
Sat 6/136:35 pm
MDW
- EWR
1 stop3h 54m
Delta
Deal found 4/29![Delta logo]()
$197
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.
Thu 5/146:10 am
LGA
- ORD
Nonstop2h 39m
United Airlines
Sat 5/166:30 pm
ORD
- LGA
Nonstop2h 23m
United Airlines
Deal found 4/30![United Airlines logo]()
$217
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/166:00 am
LGA
- MDW
Nonstop2h 20m
Southwest
Sun 6/215:20 am
MDW
- LGA
Nonstop2h 00m
Southwest
Deal found 4/28![Southwest logo]()
$217
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.
Fri 7/38:19 pm
EWR
- ORD
Nonstop2h 47m
United Airlines
Mon 7/69:30 pm
ORD
- EWR
Nonstop2h 23m
United Airlines
Deal found 5/1![United Airlines logo]()
$218
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/166:05 pm
LGA
- MDW
Nonstop2h 25m
Southwest
Wed 5/202:30 pm
MDW
- LGA
1 stop5h 55m
Southwest
Deal found 4/29![Southwest logo]()
$227
This Delta deal was found by Cheapflights users on 5/2. 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 6/910:31 am
EWR
- MDW
1 stop6h 45m
Delta
Thu 6/1112:50 pm
MDW
- EWR
1 stop6h 54m
Delta
Deal found 5/2![Delta logo]()
$207
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.
Thu 7/27:00 am
LGA
- ORD
Nonstop2h 30m
United Airlines
Mon 7/68:00 am
ORD
- LGA
Nonstop2h 17m
United Airlines
Deal found 5/1![United Airlines logo]()
$220
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/116:00 am
LGA
- MDW
Nonstop2h 20m
Southwest
Mon 6/155:15 am
MDW
- LGA
Nonstop2h 00m
Southwest
Deal found 4/28![Southwest logo]()
$227
Last-minute flights from Pennsylvania to IllinoisDiscover last-minute flight deals from Pennsylvania to Illinois. Data last updated May 3, 2026 and is based on user searches.
Discover last-minute flight deals from Pennsylvania to Illinois. Data last updated May 3, 2026 and is based on user searches.
This Priceline 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/1210:29 pm
EWR
- ORD
1 stop10h 26m
Multiple Airlines
Fri 5/1512:59 pm
ORD
- EWR
Nonstop2h 07m
Multiple Airlines
Deal found 4/28![Multiple Airlines logo]()
$165
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/136:29 pm
LGA
- ORD
Nonstop2h 42m
Spirit Airlines
Wed 5/271:49 pm
ORD
- LGA
Nonstop2h 11m
Spirit Airlines
Deal found 4/29![Spirit Airlines logo]()
$152
This Expedia 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/136:29 pm
LGA
- ORD
Nonstop2h 42m
Spirit Airlines
Fri 5/151:49 pm
ORD
- LGA
Nonstop2h 11m
Spirit Airlines
Deal found 4/29![Spirit Airlines logo]()
$159
This Expedia 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/136:29 pm
LGA
- ORD
Nonstop2h 42m
Multiple Airlines
Fri 5/151:59 pm
ORD
- LGA
1 stop8h 15m
Multiple Airlines
Deal found 4/29![Multiple Airlines logo]()
$164
This Cheapflightsfares 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/136:29 pm
LGA
- ORD
Nonstop2h 42m
Spirit Airlines
Wed 5/201:49 pm
ORD
- LGA
Nonstop2h 11m
Spirit Airlines
Deal found 4/29![Spirit Airlines logo]()
$168
This Expedia 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/206:29 pm
LGA
- ORD
Nonstop2h 42m
Spirit Airlines
Thu 6/49:20 am
ORD
- LGA
1 stop8h 40m
Spirit Airlines
Deal found 4/30![Spirit Airlines logo]()
$163
This Cheapflightsfares 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/206:29 pm
LGA
- ORD
Nonstop2h 42m
Spirit Airlines
Sat 9/55:27 pm
ORD
- LGA
Nonstop2h 14m
Spirit Airlines
Deal found 5/1![Spirit Airlines logo]()
$166
This Cheapflightsfares 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/263:00 pm
LGA
- ORD
1 stop8h 14m
Spirit Airlines
Wed 5/271:49 pm
ORD
- LGA
Nonstop2h 11m
Spirit Airlines
Deal found 5/1![Spirit Airlines logo]()
$154
This Expedia 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/2610:00 pm
LGA
- ORD
1 stop10h 55m
Frontier
Fri 5/295:11 pm
ORD
- LGA
1 stop22h 00m
Frontier
Deal found 4/30![Frontier logo]()
$160
This Cheapflightsfares 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/2810:59 am
LGA
- ORD
1 stop13h 16m
Spirit Airlines
Fri 5/291:49 pm
ORD
- LGA
Nonstop2h 11m
Spirit Airlines
Deal found 4/30![Spirit Airlines logo]()
$156
This Cheapflightsfares 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/285:01 pm
EWR
- ORD
Nonstop2h 37m
Spirit Airlines
Thu 6/412:54 pm
ORD
- EWR
Nonstop2h 05m
Spirit Airlines
Deal found 4/30![Spirit Airlines logo]()
$163
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/2810:00 pm
LGA
- ORD
1 stop10h 55m
Multiple Airlines
Tue 6/21:49 pm
ORD
- LGA
Nonstop2h 11m
Multiple Airlines
Deal found 4/29![Multiple Airlines logo]()
$165
One-way flights from Pennsylvania to IllinoisSearch for one-way flight options from Pennsylvania to Illinois. Find affordable one-way fares based on user searches. Data last updated May 3, 2026.
Search for one-way flight options from Pennsylvania to Illinois. Find affordable one-way fares based on user searches. Data last updated May 3, 2026.
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.
Wed 5/2710:29 pm
EWR
- ORD
1 stop10h 26m
Frontier
Deal found 4/30![Frontier logo]()
$73
This Cheapflightsfares 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/55:01 pm
EWR
- ORD
Nonstop2h 37m
Spirit Airlines
Deal found 4/29![Spirit Airlines logo]()
$74
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.
Wed 6/35:55 am
EWR
- MDW
1 stop17h 07m
Frontier
Deal found 4/30![Frontier logo]()
$75
This Mytrip 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/15:01 pm
EWR
- ORD
Nonstop2h 37m
Spirit Airlines
Deal found 5/1![Spirit Airlines logo]()
$75
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.
Wed 5/275:55 am
EWR
- MDW
1 stop17h 07m
Frontier
Deal found 5/1![Frontier logo]()
$76
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.
Sat 5/3011:30 am
EWR
- ORD
1 stop12h 43m
Frontier
Deal found 4/30![Frontier logo]()
$77
This Cheapflightsfares 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/42:45 pm
EWR
- ORD
Nonstop2h 26m
Spirit Airlines
Deal found 4/29![Spirit Airlines logo]()
$79
This Mytrip 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/185:01 pm
EWR
- ORD
Nonstop2h 37m
Spirit Airlines
Deal found 4/28![Spirit Airlines logo]()
$80
This Jetabroad 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 Jetabroad is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/285:55 am
EWR
- ORD
1 stop27h 00m
Frontier
Deal found 4/30![Frontier logo]()
$81
This Jetabroad deal was found by Cheapflights users on 5/2. 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 Jetabroad is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/110:29 pm
EWR
- MDW
1 stop13h 43m
Frontier
Deal found 5/2![Frontier logo]()
$82
This Travelocity 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/2810:59 am
LGA
- ORD
1 stop13h 16m
Spirit Airlines
Deal found 4/28![Spirit Airlines logo]()
$82
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.
Thu 9/32:45 pm
EWR
- ORD
Nonstop2h 26m
Spirit Airlines
Deal found 5/1![Spirit Airlines logo]()
$83
Find flight deals from Pennsylvania to Illinois
Keep the following information in mind while searching for Pennsylvania to Illinois flight deals. Data was last updated May 3, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $150 (Priceline) |
One-way from | $73 (Kiwi.com) |
Popular in | March |
Cheapest in | January |
Average price | $291 |
Good round-trip deal | $295 or less |
Good one-way deal | $158 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Pennsylvania 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 3, 2026.
Use the filters below to find and compare flights from Pennsylvania to Illinois that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
New YorkChicago
LGA - ORD
LGAORD
New York LaGuardia
Wed 6/10
10:59 am-11:15 pm
1 stop13h 16m
Chicago O'Hare Intl
Fri 6/12
1:49 pm-5:00 pm
Nonstop2h 11m
$157
New YorkChicago
JFK - ORD
JFKORD
New York John F Kennedy Intl
Sat 7/25
7:35 pm-9:52 pm
Nonstop3h 17m
Chicago O'Hare Intl
Wed 8/5
6:00 am-9:24 am
Nonstop2h 24m
$177
NewarkChicago
EWR - ORD
EWRORD
Newark
Tue 7/14
7:16 am-9:00 am
Nonstop2h 44m
Chicago O'Hare Intl
Wed 7/15
6:00 am-9:12 am
Nonstop2h 12m
$177
New YorkChicago
LGA - MDW
LGAMDW
New York LaGuardia
Tue 7/7
3:55 pm-5:45 pm
Nonstop2h 50m
Chicago Midway
Tue 7/7
7:45 pm-10:55 pm
Nonstop2h 10m
$177
New YorkChicago
JFK - ORD
JFKORD
New York John F Kennedy Intl
Sat 7/25
7:35 pm-9:52 pm
Nonstop3h 17m
Chicago O'Hare Intl
Wed 7/29
6:00 am-9:24 am
Nonstop2h 24m
$177
NewarkChicago
EWR - ORD
EWRORD
Newark
Sat 6/20
7:12 pm-9:00 pm
Nonstop2h 48m
Chicago O'Hare Intl
Sat 7/25
6:00 am-9:12 am
Nonstop2h 12m
$177
New YorkChicago
LGA - ORD
LGAORD
New York LaGuardia
Sat 6/20
2:50 pm-4:50 pm
Nonstop3h 00m
Chicago O'Hare Intl
Tue 6/23
5:45 pm-9:07 pm
Nonstop2h 22m
$177
New YorkChicago
LGA - ORD
LGAORD
New York LaGuardia
Sat 6/20
7:00 am-8:29 am
Nonstop2h 29m
Chicago O'Hare Intl
Sat 7/25
3:00 pm-6:22 pm
Nonstop2h 22m
$177
New YorkChicago
LGA - ORD
LGAORD
New York LaGuardia
Sat 7/4
5:55 pm-8:02 pm
Nonstop3h 07m
Chicago O'Hare Intl
Tue 7/7
7:00 am-10:14 am
Nonstop2h 14m
$177
New YorkChicago
LGA - ORD
LGAORD
New York LaGuardia
Fri 7/10
8:45 pm-10:36 pm
Nonstop2h 51m
Chicago O'Hare Intl
Mon 7/13
10:30 am-1:48 pm
Nonstop2h 18m
$177
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Pennsylvania to Illinois
Have a flexible travel schedule? Discover the best time to fly to Illinois from Pennsylvania with our price prediction graph.
LGA-ORD
EWR-ORD
JFK-ORD
LGA-MDW
IAD-MDW
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 Pennsylvania to Illinois
USPA-USIL
LGA-ORD
EWR-ORD
JFK-ORD
LGA-MDW
How far ahead should I book a flight from Pennsylvania to Illinois?
To ensure you get the cheapest price possible for a flight from Pennsylvania to Illinois, you should look to book at least 29 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 month to book a flight from Pennsylvania to Illinois?
Currently, April is the cheapest month in which you can book a flight from Pennsylvania to Illinois (average of $263). Flying from Pennsylvania to Illinois in February is currently the most expensive (average of $384). 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 PA to IL?
Find hourly flight availability from Pennsylvania 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 3, 2026.
When flying from Pennsylvania to Illinois, the time of day you fly usually plays a role in the price. Save by searching for a flight in the afternoon, which can drop the price by up to 9% versus a flight in the evening.
What is the cheapest day to fly from Pennsylvania to Illinois?
Use this chart to determine the cheapest time to fly round-trip from Pennsylvania to Illinois. Price data was last updated on May 2, 2026.
Travelers seeking maximum savings on their Pennsylvania to Illinois flight should consider departing on Friday evenings when fares are most often at their lowest. Sunday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.
Weekly flight availability from Pennsylvania to Illinois
Explore weekly flight availability from Pennsylvania 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 3, 2026.
The most flights from USPA to USIL are scheduled on a Saturday (41 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (29 on average).
How much does it cost to fly round-trip from Pennsylvania 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 3, 2026.
Get a feel of what it's like to fly with Southwest,Delta, andUnited Airlines from Pennsylvania to Illinois by reading reviews from past customers. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Crew
8.6
Food
7.0
Entertainment
7.5
Comfort
8.0
Overall
8.0
Boarding
8.1
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Crew
8.6
Food
7.0
Entertainment
7.5
Comfort
8.0
Overall
8.0
Boarding
8.1
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Crew
8.6
Food
7.0
Entertainment
7.5
Comfort
8.0
Overall
8.0
Boarding
8.1
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Crew
8.6
Food
7.0
Entertainment
7.5
Comfort
8.0
Overall
8.0
Boarding
8.1
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Crew
8.6
Food
7.0
Entertainment
7.5
Comfort
8.0
Overall
8.0
Boarding
8.1
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Crew
8.6
Food
7.0
Entertainment
7.5
Comfort
8.0
Overall
8.0
Boarding
8.1
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Related info for your journey
Find useful and relevant information for your journey from Pennsylvania to Illinois. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
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Alternative routes for Pennsylvania to Illinois
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Illinois by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Pennsylvania to Illinois by cabin class
Find flights from Pennsylvania to Illinois, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Pennsylvania and Illinois flights
Browse other Pennsylvania and Illinois flight options. Last updated on May 3, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Find a return flight route from Illinois
Find the right flight back to Pennsylvania after your stay in Illinois
Pennsylvania to Illinois flights
Consider these flights traveling from Pennsylvania to Illinois.
Top 5 airlines flying from Pennsylvania to Illinois
Discover the top 5 airlines that operate flights from Pennsylvania 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 3, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$77 | Average$173 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$83 | Average$359 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$92 | Average$370 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$97 | Average$321 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$137 | Average$362 | FlexibilityNo cancel fee | On-time69% |