PHL

$60 Find Cheap Flights from Illinois to Philadelphia

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to Philadelphia departing on 2/25. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$107
Overall average: $307
Frontier
Fri 2/13Mon 2/16
ORD - PHL • Non-stop
Cheapest one-way
$60
Typical prices: $173-$393
Frontier
Wed 2/25
STL - PHL • 1 stop
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We hope you love your trip to Philadelphia!
Flight Deals
Useful Info
Flight Deals

Cheap Flights from Illinois to Philadelphia

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Illinois to Philadelphia that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Illinois to Philadelphia

Fri, Feb 13 - Mon, Feb 16
Frontier Logo
8:20 am - 11:29 am
ORD
-
PHL
2h 09mnonstop
Frontier Logo
9:47 pm - 11:23 pm
PHL
-
ORD
2h 36mnonstop
$107Frontier
Mon, Feb 23 - Fri, Feb 27
Frontier Logo
10:15 am - 1:24 pm
ORD
-
PHL
2h 09mnonstop
Frontier Logo
7:11 am - 8:47 am
PHL
-
ORD
2h 36mnonstop
$108Frontier
Wed, Feb 25 - Wed, Mar 4
Spirit Airlines Logo
10:44 am - 6:51 pm
ORD
-
PHL
7h 07m
1 stop
Spirit Airlines Logo
5:30 am - 5:46 pm
PHL
-
ORD
13h 16m
1 stop
$113Spirit Airlines
Tue, Feb 24 - Tue, Mar 3
Spirit Airlines Logo
8:16 pm - 8:44 am
ORD
-
PHL
11h 28m
1 stop
Spirit Airlines Logo
5:26 pm - 11:47 pm
PHL
-
ORD
7h 21m
1 stop
$121Spirit Airlines
Fri, Feb 27 - Mon, Mar 2
Multiple Airlines Logo
8:22 pm - 11:13 am
STL
-
PHL
13h 51m
1 stop
Multiple Airlines Logo
7:46 pm - 10:27 pm
PHL
-
STL
27h 41m
1 stop
$134Multiple Airlines
Mon, Feb 23 - Tue, Feb 24
Multiple Airlines Logo
3:49 pm - 12:39 pm
STL
-
PHL
19h 50m
1 stop
Multiple Airlines Logo
7:46 pm - 10:27 pm
PHL
-
STL
27h 41m
1 stop
$140Multiple Airlines
Thu, Feb 19 - Sat, Feb 28
United Airlines Logo
10:46 am - 5:14 pm
MLI
-
PHL
5h 28m
1 stop
United Airlines Logo
8:02 am - 11:46 am
PHL
-
MLI
4h 44m
1 stop
$260United Airlines
Wed, Jun 3 - Sat, Jun 6
United Airlines Logo
5:38 pm - 12:45 am
PIA
-
PHL
6h 07m
1 stop
United Airlines Logo
1:31 pm - 7:26 pm
PHL
-
PIA
6h 55m
1 stop
$269United Airlines
Fri, Feb 20 - Sun, Feb 22
American Airlines Logo
1:30 pm - 7:48 pm
MLI
-
PHL
5h 18m
1 stop
American Airlines Logo
4:00 pm - 10:53 pm
PHL
-
MLI
7h 53m
1 stop
$269American Airlines
Fri, May 22 - Tue, May 26
American Airlines Logo
5:01 pm - 9:56 pm
BMI
-
PHL
3h 55m
1 stop
American Airlines Logo
7:36 am - 1:05 pm
PHL
-
BMI
6h 29m
1 stop
$397American Airlines
Useful Info

Good to know

Low seasonJanuary
Cheapest flight$60
Best time to beat the crowds with an average 1% drop in price.
Most popular time to fly with an average 1% increase in price.
Flight from St. Louis to Philadelphia

FAQs for booking flights from Illinois to Philadelphia

  • How does KAYAK find such low prices on flights from Illinois to Philadelphia?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Illinois to Philadelphia.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Illinois to Philadelphia?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Philadelphia from Illinois is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Illinois to Philadelphia?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Philadelphia with an airline and back to Illinois with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Illinois to Philadelphia?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Philadelphia from Illinois up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Traveling to a place near Philadelphia?

Book flights to Philadelphia if you plan to visit one of these locations
Wildwood Crest
Newark
North Wildwood
Vineland
Essington
West Chester
Elkton
Pottstown
Willow Grove
Kennett Square
Voorhees
Somers Point
Middletown
Wyomissing
Glen Mills
Phoenixville
Bird in Hand
Blackwood
Strasburg
Millville

Everything you need to know for your flight to Philadelphia

Information on the airport you'll fly into in Philadelphia

Philadelphia (PHL)