Flights from Philadelphia International Airport to Illinois

Flight deals from Philadelphia International Airport to Illinois

Looking for cheap tickets from Philadelphia International Airport to Illinois, or a last-minute trip? Find the lowest prices on one-way and return tickets right here.

Chicago.SAR 255 per passenger.Departing Sun, 26 Oct, returning Mon, 27 Oct.Return flight with Frontier Airlines.Outbound direct flight with Frontier Airlines departs from Philadelphia International on Sun, 26 Oct, arriving in Chicago Midway.Inbound direct flight with Frontier Airlines departs from Chicago Midway on Mon, 27 Oct, arriving in Philadelphia International.Price includes taxes and charges.From SAR 255, select.

Peoria.SAR 931 per passenger.Departing Wed, 12 Nov, returning Wed, 19 Nov.Return flight with United.Outbound indirect flight with United, departs from Philadelphia International on Wed, 12 Nov, arriving in Greater Peoria.Inbound indirect flight with United, departs from Greater Peoria on Wed, 19 Nov, arriving in Philadelphia International.Price includes taxes and charges.From SAR 931, select.

Springfield.SAR 1,019 per passenger.Departing Tue, 30 Sep, returning Sat, 4 Oct.Return flight with Frontier Airlines and Breeze Airways.Outbound indirect flight with Frontier Airlines, departs from Philadelphia International on Tue, 30 Sep, arriving in Springfield.Inbound indirect flight with Breeze Airways, departs from Springfield on Sat, 4 Oct, arriving in Philadelphia International.Price includes taxes and charges.From SAR 1,019, select.

Bloomington.SAR 1,079 per passenger.Departing Sun, 28 Sep, returning Thu, 2 Oct.Return flight with Frontier Airlines and Allegiant Air.Outbound indirect flight with Frontier Airlines, departs from Philadelphia International on Sun, 28 Sep, arriving in Central Illinois Regional.Inbound indirect flight with Allegiant Air, departs from Central Illinois Regional on Thu, 2 Oct, arriving in Philadelphia International.Price includes taxes and charges.From SAR 1,079, select.

Quincy.SAR 1,320 per passenger.Departing Wed, 1 Oct, returning Sun, 5 Oct.Return flight with Spirit Airlines and Southern Airways Express.Outbound indirect flight with Spirit Airlines, departs from Philadelphia International on Wed, 1 Oct, arriving in Quincy.Inbound indirect flight with Southern Airways Express, departs from Quincy on Sun, 5 Oct, arriving in Philadelphia International.Price includes taxes and charges.From SAR 1,320, select.

Moline.SAR 1,367 per passenger.Departing Mon, 13 Oct, returning Wed, 15 Oct.Return flight with United.Outbound indirect flight with United, departs from Philadelphia International on Mon, 13 Oct, arriving in Moline.Inbound indirect flight with United, departs from Moline on Wed, 15 Oct, arriving in Philadelphia International.Price includes taxes and charges.From SAR 1,367, select.

See more deals

Flying from Philadelphia International Airport to Illinois

Arm yourself with these facts on the fly.

Cheapest flight found	SAR 255
Cheapest month to fly	October
Average flight time	2 hrs, 21 mins
Average flights per week	376
Most popular airline	American Airlines

How to find cheap flights from Philadelphia International Airport to Illinois

We've compared the best online travel agents and flight providers on the internet to find the cheapest plane tickets from Philadelphia International Airport to Illinois. Other savvy travellers recently found return flights from SAR 255 and one-way tickets from SAR 146. Ready to join them? Here are a few tips to help you do it the smart way.

Fly in October

The cheapest time to fly from Philadelphia International Airport to Illinois is currently October.

Flex your dates for the best rates

If you’re flexible on your departure dates, you can use Skyscanner's whole month tool to find the cheapest day of the year to fly from Philadelphia International Airport to anywhere you choose in Illinois.

Watch as fares rise and fall

With Price Alerts, we'll let you know when flight prices from Philadelphia International Airport to your chosen airport in Illinois go up or down so you can book when the time is just right.

Relax – these are fee-free flight tickets

With us, there are no added fees – the Illinois Airport to Illinois flight price you see when you search with us is what you pay to the provider.

Frequently asked questions

Are there any direct flights from Philadelphia International Airport to Illinois?

Yes - direct flights currently operate from Philadelphia International Airport to Chicago Midway Airport in Illinois.

What is the average price of a flight from Philadelphia International Airport to Illinois?

We looked at all of the upcoming return flights from Philadelphia International Airport to Illinois we could find over the next 12 months. It looks like SAR 255 is the best price. This is good, compared to the average Illinois ticket price of SAR 995.

What is the cheapest month to fly from Philadelphia International Airport to Illinois?

The cheapest month to fly from Philadelphia International Airport to Quincy Airport is currently October.
The cheapest month to fly from Philadelphia International Airport to Chicago Midway Airport is currently October.
The cheapest month to fly from Philadelphia International Airport to Springfield Airport is currently September.
And the cheapest month to fly from Philadelphia International Airport to Central Illinois Regional Airport is usually September.

Which upcoming date is cheapest to fly from Philadelphia International Airport to Illinois on?

After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Philadelphia International Airport to Illinois on Sunday, 26 October 2025.

If I'm flying from Philadelphia International Airport, where in Illinois is cheapest to fly into?

If you're flying from Philadelphia International, the cheapest city in Illinois to fly into is Chicago. The cheapest airport serving Chicago at the moment is Chicago Midway.