PHL

$55 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 12/8. 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
$106
Overall average: $276
Frontier
Sat 12/13Mon 12/15
ORD - PHL • 1 stop
Cheapest non-stop
$107
Typical prices: $221-$458
Frontier
Fri 1/16Mon 1/26
ORD - PHL • Non-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

Sat, Dec 13 - Mon, Dec 15
Frontier Logo
2:26 pm - 12:40 amORD-PHL
9h 14m1 stop
Frontier Logo
12:33 pm - 2:03 pmPHL-ORD
2h 30mnonstop
$106Frontier
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Fri, Jan 16 - Mon, Jan 26
Frontier Logo
3:15 pm - 6:24 pmORD-PHL
2h 09mnonstop
Frontier Logo
4:37 pm - 6:10 pmPHL-ORD
2h 33mnonstop
$107Frontier
Find Deal
Wed, Dec 3 - Mon, Dec 8
Frontier Logo
8:00 am - 4:52 pmORD-PHL
7h 52m1 stop
Frontier Logo
12:33 pm - 2:03 pmPHL-ORD
2h 30mnonstop
$108Frontier
Find Deal
Tue, Dec 9 - Sat, Dec 13
Spirit Airlines Logo
3:26 pm - 11:16 pmORD-PHL
6h 50m1 stop
Spirit Airlines Logo
4:00 pm - 12:09 amPHL-ORD
9h 09m1 stop
$113Spirit Airlines
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Fri, Dec 12 - Sat, Dec 13
Multiple Airlines Logo
2:00 pm - 5:15 pmORD-PHL
2h 15mnonstop
Multiple Airlines Logo
4:00 pm - 12:09 amPHL-ORD
9h 09m1 stop
$118Multiple Airlines
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Fri, Dec 26 - Tue, Dec 30
United Airlines Logo
5:19 pm - 12:45 amPIA-PHL
6h 26m1 stop
United Airlines Logo
6:35 am - 12:20 pmPHL-PIA
6h 45m1 stop
$249United Airlines
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Mon, Dec 22 - Fri, Dec 26
United Airlines Logo
5:33 pm - 12:45 amMLI-PHL
6h 12m1 stop
United Airlines Logo
6:35 am - 10:12 amPHL-MLI
4h 37m1 stop
$249United Airlines
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Tue, Apr 14 - Sat, Apr 18
Delta Logo
5:00 pm - 12:25 amMLI-PHL
6h 25m1 stop
Delta Logo
6:10 pm - 10:31 pmPHL-MLI
5h 21m1 stop
$264Delta
Find Deal
Tue, Dec 9 - Tue, Dec 16
Delta Logo
10:09 am - 6:12 pmEVV-PHL
7h 03m1 stop
Delta Logo
5:01 pm - 9:47 pmPHL-EVV
5h 46m1 stop
$297Delta
Find Deal
Fri, Dec 12 - Mon, Dec 15
Multiple Airlines Logo
5:35 pm - 6:15 pmEVV-PHL
23h 40m2 stops
Multiple Airlines Logo
8:00 am - 4:55 pmPHL-EVV
9h 55m1 stop
$322Multiple Airlines
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Useful Info

Good to know

Low seasonJanuary
Cheapest flight$55
Best time to beat the crowds with an average 5% drop in price.
Most popular time to fly with an average 9% 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
West Chester
Essington
Elkton
Pottstown
Willow Grove
Kennett Square
Somers Point
Voorhees
Middletown
Wyomissing
Glen Mills
Phoenixville
Bird in Hand
Blackwood
Millville
Strasburg

Everything you need to know for your flight to Philadelphia

Information on the airport you'll fly into in Philadelphia

Philadelphia (PHL)