$62 Cheap flight deals from Philadelphia (ILG) to Central Illinois (STL)

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This Weekend's Flight Deals from Philadelphia to Central Illinois

This weekend's flight prices found within the past 7 days, for the period specified. Prices and availability are subject to change. Additional terms apply.

Fri, Aug 8 - Sat, Aug 9
TTN
Mercer
MDW
Midway Intl.
$223 Roundtrip, found 6 days ago
$223
Roundtrip
found 6 days ago
Select Frontier Airlines flight, departing Fri, Aug 8 from Mercer to Midway Intl., returning Sat, Aug 9, priced at $223 found 6 days ago
Fri, Aug 8 - Sat, Aug 9
TTN
Mercer
MDW
Midway Intl.
$223 Roundtrip, found 6 days ago
$223
Roundtrip
found 6 days ago
Select Frontier Airlines flight, departing Fri, Aug 8 from Mercer to Midway Intl., returning Sat, Aug 9, priced at $223 found 6 days ago
Sat, Aug 9 - Sat, Aug 23
ABE
Lehigh Valley Intl.
MDW
Midway Intl.
$324 Roundtrip, found 4 days ago
$324
Roundtrip
found 4 days ago
Select Delta flight, departing Sat, Aug 9 from Lehigh Valley Intl. to Midway Intl., returning Sat, Aug 23, priced at $324 found 4 days ago
Sun, Aug 10 - Wed, Aug 13
PHL
Philadelphia Intl.
STL
Lambert-St. Louis Intl.
$348 Roundtrip, found 9 hours ago
$348
Roundtrip
found 9 hours ago
Select Spirit Airlines flight, departing Sun, Aug 10 from Philadelphia Intl. to Lambert-St. Louis Intl., returning Wed, Aug 13, priced at $348 found 9 hours ago

Airfares from $62 One Way, $117 Round Trip from Philadelphia to Central Illinois

Prices starting at $117 for return flights and $62 for one-way flights to Central Illinois were the cheapest prices found within the past 7 days, for the period specified. Prices and availability are subject to change. Additional terms apply.

Fri, Sep 26 - Mon, Sep 29
PHL
Philadelphia
MDW
Chicago
$117 Roundtrip, found 9 hours ago
$117
Roundtrip
found 9 hours ago
Select Frontier Airlines flight, departing Fri, Sep 26 from Philadelphia to Chicago, returning Mon, Sep 29, priced at $117 found 9 hours ago
Sat, Sep 13 - Tue, Sep 23
PHL
Philadelphia
MDW
Chicago
$124 Roundtrip, found 10 hours ago
$124
Roundtrip
found 10 hours ago
Select Southwest Airlines flight, departing Sat, Sep 13 from Philadelphia to Chicago, returning Tue, Sep 23, priced at $124 found 10 hours ago
Mon, Aug 25 - Thu, Aug 28
PHL
Philadelphia
STL
St. Louis
$151 Roundtrip, found 1 day ago
$151
Roundtrip
found 1 day ago
Select Spirit Airlines flight, departing Mon, Aug 25 from Philadelphia to St. Louis, returning Thu, Aug 28, priced at $151 found 1 day ago
Tue, Aug 12 - Wed, Aug 13
TTN
Trenton
STL
St. Louis
$211 Roundtrip, found 5 days ago
$211
Roundtrip
found 5 days ago
Select Frontier Airlines flight, departing Tue, Aug 12 from Trenton to St. Louis, returning Wed, Aug 13, priced at $211 found 5 days ago
Sat, Aug 16 - Sat, Aug 23
TTN
Trenton
MDW
Chicago
$211 Roundtrip, found 2 days ago
$211
Roundtrip
found 2 days ago
Select Frontier Airlines flight, departing Sat, Aug 16 from Trenton to Chicago, returning Sat, Aug 23, priced at $211 found 2 days ago

Central Illinois economy flight packages

Price found within the past 48 hours. Click for updated prices.
Baymont by Wyndham Chicago/Alsip
2.5-star property

Baymont by Wyndham Chicago/Alsip

8.2/10 Very Good! (1,020 reviews)

Sep 26 - Sep 30

4 night stay

Philadelphia (PHL) to Chicago (MDW)

Frontier Airlines • Coach

Chicago (MDW) to Philadelphia (PHL)

Southwest Airlines • Coach
Save 100% on your flight
per person
found 1 day ago
My second stay here and I’m totally satisfied with this hotel. It’s clean, comfortable and staff friendly and helpful

Reviewed on Mar 27, 2025

Trump International Hotel & Tower Chicago
5.0-star property

Trump International Hotel & Tower Chicago

9.4/10 Exceptional! (1,659 reviews)

Sep 19 - Sep 21

2 night stay

Philadelphia (PHL) to Chicago (ORD)

Frontier Airlines • Roundtrip • Coach
Save 100% on your flight
per person
found 1 day ago
This is the nicest hotel that I have ever stayed at. Everything was perfect!

Reviewed on Jun 16, 2025

Courtyard by Marriott Chicago Magnificent Mile
3.0-star property

Courtyard by Marriott Chicago Magnificent Mile

8.8/10 Excellent! (1,493 reviews)

Sep 11 - Sep 14

3 night stay

Philadelphia (PHL) to Chicago (ORD)

Frontier Airlines • Roundtrip • Coach
Save 100% on your flight
per person
found 13 hours ago
I felt it was all so confusing there. The parking is horrendous. You get an email stating 45 a night for self park but it’s 65-this is directly from the hotel. I ordered my room through Orbitz. Don’t get insurance through Orbitz as the hotel charges insurance as well. Expect a hold fee for incidentals of 70 a night. The room was clean. But minor scuffs. I took photos to make sure a charge didn’t come back to me. Bus is the way to go as the city is overpriced on uber. Orbitz does not match the hotel price be aware. It would seem like my issue is with Orbitz but it’s the hotel with all the surprise fees. If you’re looking for a clean hotel this is it. If you’re looking for friendly staff this isn’t it. If you offer someone something like water then you should offer everyone, I work in property management and if I offered someone something and not the next it would be a problem. Just saying. The pool is small. And right next to the gym and on the 10th floor. We were on the 18th and it wasn’t bad but just ok. Would I stay again probably not. I am big on friendly staff. Park other places as you can find way cheaper. We stayed for 3 nights. 195 total. Photos attached are the day we left. I don’t play when it comes to picking up behind myself.

Reviewed on May 25, 2025

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More About Flying To Central Illinois from Philadelphia

Route Information for Flights from Philadelphia to Central Illinois

Origin Airport IATA Code
ILG
Destination Airport IATA Code
STL
Distance
666 mi
Direct Flight Airlines
Southwest Airlines
Earliest Flight Arrival
11:30AM UTC
Latest Flight Arrival
11:35PM UTC

Philadelphia to Central Illinois

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Fare, taxes & fees: Fares include all taxes and fees, except baggage fees. Rates shown reflect fares found by other Orbitz users over the past 7 days. Due to rapidly changing airline prices & seat availability, these fares may no longer be available.

Refunds/changes/cancellations: Itinerary changes, if permitted for the fare, will have a $30 service fee charged by Orbitz. Additional airline charges may apply.

Other conditions: Schedules, fares and rules are subject to change without notice. Seats are limited and may not be available on all flights/dates or in all markets. Lower fares may be available. Fares will not be honored retroactively or in exchange for any wholly/partially unused ticket. Tickets are non-transferable and non-refundable. Fare rules are provided for the selected itinerary before booking.