Flights from Philadelphia to Illinois

Flight deals from Philadelphia to Illinois

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

Chicago.Rs8,093 per passenger.Departing Sun, 18 Jan.One-way flight with Frontier Airlines.Outbound direct flight with Frontier Airlines departs from Philadelphia International on Sun, 18 Jan, arriving in Chicago O'Hare International.Price includes taxes and charges.From Rs8,093, select.

Bloomington.Rs35,459 per passenger.Departing Mon, 19 Jan.One-way flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Philadelphia International on Mon, 19 Jan, arriving in Central Illinois Regional.Price includes taxes and charges.From Rs35,459, select.

Quincy.Rs53,068 per passenger.Departing Fri, 26 Dec.One-way flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Philadelphia International on Fri, 26 Dec, arriving in Quincy.Price includes taxes and charges.From Rs53,068, select.

Decatur.Rs68,040 per passenger.Departing Mon, 19 Jan.One-way flight with United.Outbound indirect flight with United, departs from Philadelphia International on Mon, 19 Jan, arriving in Decatur.Price includes taxes and charges.From Rs68,040, select.

Springfield.Rs88,262 per passenger.Departing Fri, 26 Dec.One-way flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Philadelphia International on Fri, 26 Dec, arriving in Springfield.Price includes taxes and charges.From Rs88,262, select.

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Flying from Philadelphia to Illinois

Arm yourself with these facts on the fly.

Cheapest flight found	Rs8,093
Cheapest month to fly	January
Average flight time	2 hrs, 22 mins
Cheapest airport to fly from	Philadelphia International
Most popular airline	American Airlines

How to find cheap flights from Philadelphia to Illinois

We've compared the best online travel agents and flight providers on the internet to find the cheapest plane tickets from Philadelphia to Illinois. Other savvy travellers recently found return flights from Rs17,359 and one-way tickets from Rs8,093 one-way. Ready to join them? Here are a few tips to help you do it the smart way.

Fly from Philadelphia International into Chicago O'Hare International

At the moment, the lowest priced flight tickets to Illinois are from Philadelphia International Airport to Chicago O'Hare International Airport.

Fly in January

We crunched the flight calendar and found the cheapest time to fly from Philadelphia to Illinois is currently January.

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 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 to 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 to Illinois flight price you see when you search with us is what you pay to the provider.

Frequently asked questions

What's the average Philadelphia to Illinois flight price?

We looked at all of the upcoming return flights from Philadelphia to Illinois we could find over the next 12 months. It looks like Rs17,359 is the best price. This is good, compared to the average Illinois ticket price of Rs46,146.

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

The cheapest month to fly from Philadelphia to Chicago O'Hare International Airport is currently January. The cheapest month to fly from Philadelphia to Greater Peoria Airport is usually January

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

After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Philadelphia to Illinois on Thursday, 15 January 2026.

Are there any direct flights from Philadelphia to Illinois?

Philadelphia International Airport offers direct flights to Illinois.

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

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