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Cheap flights from Philadelphia to Illinois from $39

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Philadelphia to Illinois departing on 4/15. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Philadelphia to Illinois

Cheap round-trip flights

These are some of the best round-trip flight deals from Philadelphia to Illinois that have been recently found on momondo from popular airlines, departing in the coming months.

Cheap one-way flights

Flying one-way? These are some of the best deals recently discovered on momondo for flights from Philadelphia to Illinois.

Cheap last minute flights

Planning a quick getaway from Philadelphia to Illinois? These are the last-minute flight deals available now.

Cheap direct flights

If you prefer a non-stop journey, check out our latest direct flight deals to Illinois, so you can enjoy a seamless trip without layovers.

Cheap bus & train deals from Philadelphia to Illinois

Find recent round-trip train or bus tickets from Philadelphia to Illinois.

All round-trip flight deals to Illinois

The cheapest plane tickets to Illinois found on KAYAK recently.
4:45 pm - 10:42 pmPHL-ORD
6h 57m1 stop
10:33 am - 7:05 pmORD-PHL
7h 32m1 stop
$101Frontier
Find Deal
Thu, Jan 9 - Thu, Jan 23
4:45 pm - 10:42 pmPHL-ORD
6h 57m1 stop
10:33 am - 7:05 pmORD-PHL
7h 32m1 stop
$103Frontier
Find Deal
Thu, Jan 9 - Thu, Jan 23
6:00 am - 12:46 pmPHL-MDW
7h 46m1 stop
10:57 am - 7:45 pmMDW-PHL
7h 48m1 stop
$200Delta
Find Deal
Wed, Jan 22 - Wed, Jan 29
6:15 am - 8:05 amPHL-ORD
26h 50m2 stops
11:20 am - 2:24 pmORD-PHL
2h 04mnonstop
$218United Airlines
Find Deal
Tue, Jan 21 - Wed, Jan 22
6:00 am - 8:54 amPHL-MDW
3h 54m1 stop
6:00 am - 2:50 pmMDW-PHL
7h 50m1 stop
$220Delta
Find Deal
Mon, Jan 13 - Wed, Jan 15
1:50 pm - 3:05 pmPHL-MDW
2h 15mnonstop
6:15 pm - 9:05 pmMDW-PHL
1h 50mnonstop
$222Southwest
Find Deal
Thu, Jan 9 - Mon, Jan 13
6:35 pm - 8:04 pmPHL-ORD
2h 29mnonstop
11:40 am - 4:59 pmORD-PHL
4h 19m1 stop
$226American Airlines
Find Deal
Wed, Jan 22 - Wed, Jan 29
1:37 pm - 3:04 pmPHL-ORD
2h 27mnonstop
12:20 pm - 5:07 pmORD-PHL
3h 47m1 stop
$228American Airlines
Find Deal
Wed, Jan 22 - Thu, Jan 23
9:45 am - 7:35 pmPHL-MDW
10h 50m1 stop
6:15 pm - 9:05 pmMDW-PHL
1h 50mnonstop
$231Southwest
Find Deal
Thu, Jan 9 - Mon, Jan 13
4:38 pm - 6:10 pmPHL-ORD
2h 32mnonstop
6:30 pm - 9:40 pmORD-PHL
2h 10mnonstop
$315United Airlines
Find Deal
Tue, Dec 31 - Wed, Jan 1
6:31 pm - 7:51 pmPHL-MDW
2h 20mnonstop
$39Frontier
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Tue, Apr 15
4:42 pm - 10:27 pmPHL-ORD
6h 45m1 stop
$54Frontier
Find Deal
Thu, Jan 23
10:10 am - 11:41 amPHL-ORD
2h 31mnonstop
$91United Airlines
Find Deal
Wed, Jan 22
10:40 am - 4:51 pmPHL-ORD
7h 11m1 stop
$100United Airlines
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Tue, Feb 18
6:00 am - 12:46 pmPHL-MDW
7h 46m1 stop
$100Delta
Find Deal
Tue, Jan 14
1:50 pm - 3:05 pmPHL-MDW
2h 15mnonstop
$111Southwest
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Thu, Jan 9
9:33 am - 12:55 pmPHL-ORD
4h 22m1 stop
$120Delta
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Thu, Feb 20
8:40 am - 4:45 pmPHL-ORD
9h 05m2 stops
$125Southwest
Find Deal
Thu, Jan 9
4:09 pm - 9:45 pmPHL-STL
6h 36m1 stop
$188American Airlines
Find Deal
Tue, Dec 24
1:40 pm - 3:09 pmPHL-ORD
2h 29mnonstop
$208American Airlines
Find Deal
Fri, Mar 21
1:47 pm - 11:56 pmPHL-ORD
11h 09m1 stop
10:14 pm - 1:21 amORD-PHL
2h 07mnonstop
$243Frontier
Find Deal
Sat, Dec 21 - Sun, Jan 5
1:47 pm - 10:33 pmPHL-MDW
9h 46m1 stop
7:34 am - 10:37 amMDW-PHL
2h 03mnonstop
$243Frontier
Find Deal
Sat, Dec 21 - Sun, Jan 5
5:28 pm - 9:17 pmPHL-ORD
4h 49m1 stop
5:30 pm - 11:14 pmORD-PHL
4h 44m1 stop
$334Delta
Find Deal
Tue, Dec 24 - Tue, Dec 31
6:15 am - 9:30 pmPHL-ORD
16h 15m2 stops
11:25 am - 9:45 pmORD-PHL
9h 20m1 stop
$426Southwest
Find Deal
Tue, Dec 24 - Tue, Dec 31
1:00 pm - 10:05 pmPHL-MDW
10h 05m2 stops
6:15 pm - 9:05 pmMDW-PHL
1h 50mnonstop
$519Southwest
Find Deal
Sun, Dec 22 - Wed, Jan 8
9:14 am - 10:41 amPHL-ORD
2h 27mnonstop
2:24 pm - 7:40 amORD-PHL
16h 16m1 stop
$526American Airlines
Find Deal
Sat, Dec 21 - Sat, Dec 21
4:38 pm - 6:10 pmPHL-ORD
2h 32mnonstop
2:29 pm - 5:35 pmORD-PHL
2h 06mnonstop
$539United Airlines
Find Deal
Sun, Dec 22 - Wed, Jan 8
6:05 am - 11:08 amPHL-MDW
6h 03m1 stop
6:28 pm - 11:20 pmMDW-PHL
3h 52m1 stop
$558Delta
Find Deal
Sun, Dec 22 - Wed, Jan 8
4:38 pm - 6:10 pmPHL-ORD
2h 32mnonstop
6:30 pm - 9:40 pmORD-PHL
2h 10mnonstop
$606United Airlines
Find Deal
Tue, Dec 24 - Wed, Dec 25
6:45 pm - 10:05 pmPHL-ORD
4h 20m1 stop
4:55 pm - 7:56 pmORD-PHL
2h 01mnonstop
$616American Airlines
Find Deal
Fri, Dec 20 - Tue, Dec 24
11:43 am - 1:09 pmPHL-MDW
2h 26mnonstop
4:01 pm - 7:05 pmMDW-PHL
2h 04mnonstop
$171Frontier
Find Deal
Tue, Dec 31 - Fri, Jan 3
5:15 am - 6:39 amPHL-MDW
2h 24mnonstop
7:34 am - 10:37 amMDW-PHL
2h 03mnonstop
$178Frontier
Find Deal
Thu, Jan 2 - Sun, Jan 5
3:55 pm - 5:24 pmPHL-ORD
2h 29mnonstop
2:52 pm - 5:55 pmORD-PHL
2h 03mnonstop
$181American Airlines
Find Deal
Wed, Jan 22 - Wed, Jan 29
3:55 pm - 5:24 pmPHL-ORD
2h 29mnonstop
8:25 pm - 11:32 pmORD-PHL
2h 07mnonstop
$201American Airlines
Find Deal
Wed, Jan 22 - Thu, Jan 23
1:50 pm - 3:05 pmPHL-MDW
2h 15mnonstop
6:15 pm - 9:05 pmMDW-PHL
1h 50mnonstop
$222Southwest
Find Deal
Thu, Jan 9 - Mon, Jan 13
5:10 pm - 6:41 pmPHL-ORD
2h 31mnonstop
6:30 pm - 9:40 pmORD-PHL
2h 10mnonstop
$268United Airlines
Find Deal
Sat, Jan 18 - Sun, Jan 19
5:10 pm - 6:41 pmPHL-ORD
2h 31mnonstop
9:25 pm - 12:32 amORD-PHL
2h 07mnonstop
$278United Airlines
Find Deal
Wed, Jan 15 - Sun, Jun 15
1:50 pm - 3:05 pmPHL-MDW
2h 15mnonstop
7:00 pm - 9:55 pmMDW-PHL
1h 55mnonstop
$279Southwest
Find Deal
Wed, Jan 22 - Sun, Jan 26
7:47 pm - 9:15 pmPHL-ORD
2h 28mnonstop
7:53 pm - 10:53 pmORD-PHL
2h 00mnonstop
Sun, Dec 29 - Wed, Jan 8
7:47 pm - 9:15 pmPHL-ORD
2h 28mnonstop
7:53 pm - 10:53 pmORD-PHL
2h 00mnonstop
Sun, Jan 5 - Wed, Jan 8

Spirit Airlines flights from Philadelphia to Illinois

Our best Spirit Airlines deals on Philadelphia to Illinois flight tickets
Spirit Airlines
May 3
PHL3:30 pmPhiladelphia
7h 51m
1 stop
ORD10:21 pmChicago O'Hare Intl
May 4
ORD6:15 amChicago O'Hare Intl
25h 05m
1 stop
PHL8:20 amPhiladelphia
Spirit Airlines
Jan 8
PHL6:05 amPhiladelphia
11h 01m
1 stop
ORD4:06 pmChicago O'Hare Intl
Jan 14
ORD2:02 pmChicago O'Hare Intl
7h 14m
1 stop
PHL10:16 pmPhiladelphia
Spirit Airlines
May 1
PHL8:50 pmPhiladelphia
26h 31m
1 stop
ORD10:21 pmChicago O'Hare Intl
May 5
ORD6:15 amChicago O'Hare Intl
7h 25m
1 stop
PHL2:40 pmPhiladelphia

Frontier flights from Philadelphia to Illinois

Our best Frontier deals on Philadelphia to Illinois flight tickets
Frontier
Jan 9
PHL4:45 pmPhiladelphia
6h 57m
1 stop
ORD10:42 pmChicago O'Hare Intl
Jan 23
ORD10:33 amChicago O'Hare Intl
7h 32m
1 stop
PHL7:05 pmPhiladelphia
Frontier
Jan 9
PHL4:45 pmPhiladelphia
6h 57m
1 stop
ORD10:42 pmChicago O'Hare Intl
Jan 23
ORD10:33 amChicago O'Hare Intl
7h 32m
1 stop
PHL7:05 pmPhiladelphia
Frontier
Jan 27
PHL6:05 amPhiladelphia
9h 57m
1 stop
MDW3:02 pmChicago Midway
Jan 30
MDW7:15 amChicago Midway
12h 33m
1 stop
PHL8:48 pmPhiladelphia

See travel insights to Illinois from

How to get the cheapest flight ticket from Philadelphia to Illinois

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Illinois?

The cheapest month to fly to Illinois from Philadelphia is in September. Flight prices, which tend to average around $118, are often lower during this time because this is during the off-season. If you aren’t able to travel to Illinois during the month of September, then flying in July is also cheap. Prices for this month can be found on momondo for an average of $161.

What is the cheapest day to depart on your flight to Illinois?

The cheapest day to depart from Philadelphia to Illinois is on a Tuesday when prices can be found for as low as $156. Flights from Philadelphia to Illinois on a Friday will generally be more expensive and average around $199. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Illinois?

Our most recent data shows that the best time of day to fly to Illinois is in the evening. Flights from Philadelphia to Illinois during this time can be as low as $148. Flights at noon are often more expensive with an average ticket price of $217.

What is the cheapest Philadelphia to Illinois flight route?

Fly from Philadelphia to Chicago Midway for the best Philadelphia - Illinois flight prices

How far in advance should I book a flight to Illinois?

The best time to book a flight to Illinois from Philadelphia is 41 days out, which is when prices tend to be around $246. In the past 72 hours, momondo users found flights from Philadelphia to Illinois for as low as $171.

What cabin class options are available on Philadelphia to Illinois flights?

There are 4 cabin classes available to choose from on Philadelphia to Illinois flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Philadelphia to Illinois flights?

You could potentially save up to 38% on your flight if you consider stops on a Philadelphia to Illinois flight.

Cheap Philadelphia to Illinois flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Philadelphia to Illinois

Best Price Found

$39

Fastest flight time

2h 10m

Direct flights

Every day

Airports in Illinois

3 airports
The best one-way flight to Illinois from Philadelphia in the past 72 hours is $39. The best round-trip flight deal from Philadelphia to Illinois found on momondo in the last 72 hours is $101.
The fastest flight from Philadelphia to Illinois takes 2h 10m
Direct flights go from Philadelphia to Illinois every day.
There are 3 airports near Illinois: Chicago O'Hare Intl (ORD), Chicago Midway (MDW), Lambert-St Louis (STL)

  • When did momondo last update prices for flights from Philadelphia Airport to Illinois?

    Prices for flights from Philadelphia Airport to Illinois are updated daily.

  • How many operators does momondo search for flights from Philadelphia Airport to Illinois?

  • How old do you have to be to fly from Philadelphia Airport to Illinois?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Philadelphia Airport to Illinois.

  • What documentation or ID do you need to fly to Illinois?

    The necessary travel and health documents for your Illinois trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Philadelphia to Illinois?


Best airlines flying from Philadelphia to Illinois

Compare and see reviews for airlines that fly from Philadelphia to Illinois with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $48Free CancellationRating
6.1
3,478 reviews
Search Frontier flights
American AirlinesPriceFrom $132Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
United AirlinesPriceFrom $140Free CancellationRating
7.4
9,048 reviews
Search United Airlines flights
SouthwestPriceFrom $150Free CancellationRating
8.1
4,836 reviews
Search Southwest flights
DeltaPriceFrom $157Free CancellationRating
8.0
8,600 reviews
Search Delta flights

Why use momondo?

Why should I use momondo to find a flight deal from Philadelphia to Illinois?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Philadelphia to Illinois. momondo saves you time and could save you money on your trip.

Can I find flights from Philadelphia to Illinois with flexible booking policies on momondo?

All flight searches from Philadelphia to Illinois on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Philadelphia to Illinois?

Once all potential Philadelphia to Illinois flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Philadelphia to Illinois right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Illinois, momondo offers a useful price alert feature which will track prices for flights to Illinois from Philadelphia and alert you when they change.


An easier way to manage your Illinois trip

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Popular flights according to clicks in the last 7 days on momondo