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Cheap flights from Philadelphia to Illinois from $89

1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Philadelphia to Illinois

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
6:50 pm - 8:29 pmPHL  Philadelphia-ORD Chicago O'Hare Intl
2h 39mnonstop
Frontier Logo
3:30 pm - 6:45 pmORD  Chicago O'Hare Intl-PHL Philadelphia
2h 15mnonstop
$175Frontier
Sun, Dec 13 - Mon, Jan 4
Frontier Logo
4:31 pm - 10:00 pmPHL  Philadelphia-ORD Chicago O'Hare Intl
6h 29m1 stop Atlanta Hartsfield-Jackson
Frontier Logo
8:15 am - 5:26 pmORD  Chicago O'Hare Intl-PHL Philadelphia
8h 11m1 stop Atlanta Hartsfield-Jackson
$175Frontier
Sat, Dec 5 - Thu, Dec 10
American Airlines Logo
8:00 am - 9:39 amPHL  Philadelphia-ORD Chicago O'Hare Intl
2h 39mnonstop
American Airlines Logo
1:00 pm - 4:16 pmORD  Chicago O'Hare Intl-PHL Philadelphia
2h 16mnonstop
$194American Airlines
Sat, Jan 9 - Sat, Jan 9
American Airlines Logo
12:35 pm - 2:20 pmPHL  Philadelphia-ORD Chicago O'Hare Intl
2h 45mnonstop
American Airlines Logo
5:00 pm - 8:14 pmORD  Chicago O'Hare Intl-PHL Philadelphia
2h 14mnonstop
$195American Airlines
Tue, Dec 8 - Tue, Dec 8
United Airlines Logo
4:55 pm - 6:31 pmPHL  Philadelphia-ORD Chicago O'Hare Intl
2h 36mnonstop
United Airlines Logo
6:25 pm - 9:40 pmORD  Chicago O'Hare Intl-PHL Philadelphia
2h 15mnonstop
$199United Airlines
Sat, Jan 23 - Tue, Jan 26
United Airlines Logo
6:17 am - 7:53 amPHL  Philadelphia-ORD Chicago O'Hare Intl
2h 36mnonstop
United Airlines Logo
6:25 pm - 9:40 pmORD  Chicago O'Hare Intl-PHL Philadelphia
2h 15mnonstop
$199United Airlines
Sat, Jan 23 - Tue, Jan 26
Southwest Logo
3:55 pm - 5:10 pmPHL  Philadelphia-MDW Chicago Midway
2h 15mnonstop
Southwest Logo
1:25 pm - 4:20 pmMDW  Chicago Midway-PHL Philadelphia
1h 55mnonstop
$199Southwest
Sat, Jan 23 - Wed, Jan 27
Southwest Logo
7:50 am - 9:00 amPHL  Philadelphia-MDW Chicago Midway
2h 10mnonstop
Southwest Logo
12:00 pm - 3:00 pmMDW  Chicago Midway-PHL Philadelphia
2h 00mnonstop
$199Southwest
Wed, Jan 20 - Sat, Jan 23
Multiple Airlines Logo
7:25 pm - 2:30 pmPHL  Philadelphia-ORD Chicago O'Hare Intl
20h 05m2 stops Tampa St. Petersburg Atlanta Hartsfield-Jackson
Multiple Airlines Logo
4:00 pm - 11:11 pmORD  Chicago O'Hare Intl-PHL Philadelphia
6h 11m1 stop Atlanta Hartsfield-Jackson
$201Multiple Airlines
Mon, Dec 7 - Wed, Dec 9
Multiple Airlines Logo
4:31 pm - 10:00 pmPHL  Philadelphia-ORD Chicago O'Hare Intl
6h 29m1 stop Atlanta Hartsfield-Jackson
Multiple Airlines Logo
11:48 am - 11:11 pmORD  Chicago O'Hare Intl-PHL Philadelphia
10h 23m2 stops Minneapolis St Paul Atlanta Hartsfield-Jackson
$230Multiple Airlines
Wed, Dec 9 - Fri, Dec 11

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Frontier flights from Philadelphia to Illinois

Our best Frontier deals on Philadelphia to Illinois flight tickets
Frontier
Dec 4
PHL7:34 amPhiladelphia
11h 29m
1 stop
ORD6:03 pmChicago O'Hare Intl
Dec 7
ORD9:29 pmChicago O'Hare Intl
2h 15m
PHL12:44 amPhiladelphia
$175
Frontier
Dec 3
PHL6:45 pmPhiladelphia
2h 44m
ORD8:29 pmChicago O'Hare Intl
Dec 6
ORD9:34 pmChicago O'Hare Intl
2h 15m
PHL12:49 amPhiladelphia
$176
Frontier
Dec 3
PHL4:38 pmPhiladelphia
5h 56m
1 stop
ORD9:34 pmChicago O'Hare Intl
Dec 7
ORD9:29 pmChicago O'Hare Intl
2h 15m
PHL12:44 amPhiladelphia
$177

United Airlines flights from Philadelphia to Illinois

Our best United Airlines deals on Philadelphia to Illinois flight tickets
United Airlines
Jan 23
PHL6:17 amPhiladelphia
2h 36m
ORD7:53 amChicago O'Hare Intl
Jan 26
ORD6:25 pmChicago O'Hare Intl
2h 15m
PHL9:40 pmPhiladelphia
$199
United Airlines
Jan 23
PHL6:15 amPhiladelphia
4h 25m
1 stop
ORD9:40 amChicago O'Hare Intl
Jan 27
ORD6:25 pmChicago O'Hare Intl
2h 15m
PHL9:40 pmPhiladelphia
$209
United Airlines
Nov 13
PHL4:59 pmPhiladelphia
7h 00m
1 stop
MLI10:59 pmMoline Quad-City
Nov 14
MLI8:13 amMoline Quad-City
5h 04m
1 stop
PHL2:17 pmPhiladelphia
$369

momondo Fare Finder

 
Use the filters below to find and compare flights from Philadelphia to Illinois that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PhiladelphiaChicago

PHL Philadelphia - ORD Chicago O'Hare Intl

PHLORD

Philadelphia

Sun 12/13

6:50 pm-8:29 pm

Nonstop2h 39m

Chicago O'Hare Intl

Mon 1/4

3:30 pm-6:45 pm

Nonstop2h 15m

$175

PhiladelphiaChicago

PHL Philadelphia - ORD Chicago O'Hare Intl

PHLORD

Philadelphia

Sat 12/5

4:31 pm-10:00 pm

1 stop6h 29m

Chicago O'Hare Intl

Thu 12/10

8:15 am-5:26 pm

1 stop8h 11m

$175

PhiladelphiaChicago

PHL Philadelphia - ORD Chicago O'Hare Intl

PHLORD

Philadelphia

Sat 1/9

8:00 am-9:39 am

Nonstop2h 39m

Chicago O'Hare Intl

Sat 1/9

1:00 pm-4:16 pm

Nonstop2h 16m

$194

PhiladelphiaChicago

PHL Philadelphia - ORD Chicago O'Hare Intl

PHLORD

Philadelphia

Tue 12/8

12:35 pm-2:20 pm

Nonstop2h 45m

Chicago O'Hare Intl

Tue 12/8

5:00 pm-8:14 pm

Nonstop2h 14m

$195

PhiladelphiaChicago

PHL Philadelphia - ORD Chicago O'Hare Intl

PHLORD

Philadelphia

Sat 1/23

4:55 pm-6:31 pm

Nonstop2h 36m

Chicago O'Hare Intl

Tue 1/26

6:25 pm-9:40 pm

Nonstop2h 15m

$199

PhiladelphiaChicago

PHL Philadelphia - ORD Chicago O'Hare Intl

PHLORD

Philadelphia

Sat 1/23

6:17 am-7:53 am

Nonstop2h 36m

Chicago O'Hare Intl

Tue 1/26

6:25 pm-9:40 pm

Nonstop2h 15m

$199
Quickest round-trip

PhiladelphiaChicago

PHL Philadelphia - MDW Chicago Midway

PHLMDW

Philadelphia

Sat 1/23

3:55 pm-5:10 pm

Nonstop2h 15m

Chicago Midway

Wed 1/27

1:25 pm-4:20 pm

Nonstop1h 55m

$199

PhiladelphiaChicago

PHL Philadelphia - MDW Chicago Midway

PHLMDW

Philadelphia

Wed 1/20

7:50 am-9:00 am

Nonstop2h 10m

Chicago Midway

Sat 1/23

12:00 pm-3:00 pm

Nonstop2h 00m

$199

PhiladelphiaChicago

PHL Philadelphia - ORD Chicago O'Hare Intl

PHLORD

Philadelphia

Mon 12/7

7:25 pm-2:30 pm

2 stops20h 05m

Chicago O'Hare Intl

Wed 12/9

4:00 pm-11:11 pm

1 stop6h 11m

$201

PhiladelphiaChicago

PHL Philadelphia - ORD Chicago O'Hare Intl

PHLORD

Philadelphia

Wed 12/9

4:31 pm-10:00 pm

1 stop6h 29m

Chicago O'Hare Intl

Fri 12/11

11:48 am-11:11 pm

2 stops10h 23m

$230

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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 January. Flight prices, which tend to average around $250, 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 January, then flying in December is also cheap. Prices for this month can be found on momondo for an average of $287.

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

The cheapest day to depart from Philadelphia to Illinois is on a Friday when prices can be found for as low as $376. Flights from Philadelphia to Illinois on a Sunday will generally be more expensive and average around $515. 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 afternoon. Flights from Philadelphia to Illinois during this time can be as low as $358. Flights at noon are often more expensive with an average ticket price of $438.

What is the cheapest Philadelphia to Illinois flight route?

Fly from Philadelphia to Chicago O'Hare Intl for the best Philadelphia - Illinois flight prices

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

You are more likely to see cheaper flights to Illinois from Philadelphia when booking weeks ahead of your departure date. In general, you can expect to find flights to Illinois for around $324 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Illinois from Philadelphia for as low as $281 on momondo.

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?

No. A direct flight is the cheapest option for a flight between Philadelphia to Illinois.

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

$89

Fastest flight time

2h 00m

Direct flights

Every day

Airports in Illinois

98 airports
The best one-way flight to Illinois from Philadelphia in the past 72 hours is $89. The best round-trip flight deal from Philadelphia to Illinois found on momondo in the last 72 hours is $175.
The fastest flight from Philadelphia to Illinois takes 2h 00m
Direct flights go from Philadelphia to Illinois every day.
There are 98 airports in Illinois. From Philadelphia there are direct flights to Chicago O'Hare Intl (ORD), Chicago Midway (MDW).
Search flight deals

Frequently asked questions about flying from Philadelphia to Illinois

  • 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 $68Free CancellationRating
5.5
2,513 reviews
Search Frontier flights
DeltaPriceFrom $83Free CancellationRating
7.8
8,696 reviews
Search Delta flights
United AirlinesPriceFrom $189Free CancellationRating
7.3
10,460 reviews
Search United Airlines flights
American AirlinesPriceFrom $194Free CancellationRating
7.0
12,230 reviews
Search American Airlines flights
SouthwestPriceFrom $213Free CancellationRating
8.0
4,215 reviews
Search Southwest 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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