Cheapest€91.00
- United Airlines UA460408:272h10:27Chicago MDWPhiladelphia PHL
Door to door 5h 10mCO2 270.8 kgChanges 0Fixed, no changes
Chicago to Philadelphia flight
Flights from Chicago to Philadelphia start at €108.11 and take 4h 58m at their fastest.
The Flights from Chicago to Philadelphia starts at €108.11 and takes 4h 58m door to door, run by 8 operators over 1,101 km, with around 64 departures a day. Fares bottom out about 45 days before departure.
- 4h 58mDoor to door
- 1h 48mMoving
- €108.11From
- 270.8 kgCO2
The cheapest and the fastest on September 29, 2026
Two journeys we can sell today, with the service number each operator files them under.
Fastest€113.42
- American Airlines AA139312:331h 48m14:21Chicago ORDPhiladelphia ILG
Door to door 4h 58mCO2 270.8 kgChanges 0Fixed, no changes
Airlines
Speed, flexibility and what is on board. Nothing here is a rating, because we have not earned one.
| Operator | From |
|---|---|
 American Airlines | €93.95 |
 Frontier Airlines | €91.59 |
 GoJet Airlines | €93.95 |
 American Eagle Airlines | €92.77 |
| United Airlines | €91.00 |
 Southwest Airlines | €101.62 |
 Mesa Airlines | €93.95 |
 Bahamasair | €96.90 |
The flight gets you into Philadelphia. It does not get you a bed, and neither do we.
A room in Philadelphia for the night the flight gets in
Hotels and apartments near downtown, most of them with free cancellation, on a map that shows what is walkable.
Search Philadelphia on Booking.comOr compare on Expedia
Partner links. We do not sell accommodation. We earn a commission when a booking completes, and it never changes what you pay.
When to book Chicago to Philadelphia
The same search run across the whole booking window, so the shape of the curve is visible rather than described.
- €107.5290 days
- €75.0760 days
- €74.4845 days
- €76.8430 days
- €106.9321 days
- €135.8414 days
- €168.887 days
- €164.163 days
- €221.391 days
- Cheapest lead time
- Fares bottom out around 45 days ahead, at €74.48.
- How much it moves
- The gap between the cheapest and most expensive lead time is 197 percent. The most expensive point is €221.39, 1 days out.
- What that means
- Today sits inside the cheap window, which closes about 45 days before departure. Waiting from here has usually cost money on this corridor rather than saved it.
Which departure day costs least
Median cheapest fare for each weekday, taken across the next three weeks of real prices.
- €128.17Sun
- €109.88Mon
- €108.11Tue
- €115.19Wed
- €142.92Thu
- €132.89Fri
- €135.84Sat
Where you leave from and where you arrive
The stations, airports and ports each mode on this corridor actually uses.
Chicago
Air
- ORD
- MDW
Philadelphia
Air
- PHL
- ILG
What the journey actually looks like
Direct or connecting, how far the route really runs, and what happens when a connection is missed.
- How far it really runs
- The route covers 1,101 km against 1,069 km in a straight line, a detour of 3 percent. Track and road geometry account for the difference.
- First and last departure
- The first service of the day leaves Chicago at 06:01 and the last at 20:53, across 64 departures. The return direction keeps its own timetable, so the times back are not these times reversed.
Questions about Chicago to Philadelphia
The questions people actually ask about this trip, answered from the same prices and times the page above is built on rather than written once and left to go stale.
How long does the Flight from Chicago to Philadelphia take?
The Flight from Chicago to Philadelphia takes 4h 58m door to door, of which 1h 48m is spent moving. The route runs 1,101 km. The difference between the two times is reaching the terminal and leaving it at the far end, which every time on this page includes.
How much does the Flight from Chicago to Philadelphia cost?
The Flight from Chicago to Philadelphia starts at €108.11 for one passenger, checked on September 12, 2026. A typical fare is €116.37. Both are the total including taxes, supplier fees and our service fee, so the price here is the price at checkout.
Who runs the Flight from Chicago to Philadelphia?
8 operators run the Flight from Chicago to Philadelphia: American Airlines, Frontier Airlines, GoJet Airlines, American Eagle Airlines, United Airlines. Between them they file around 64 departures a day. The operator table on this page compares them on fare, journey time, cruising speed, fare conditions and what is provided on board.
Which terminal does the Flight from Chicago to Philadelphia use?
The Flight from Chicago to Philadelphia leaves from Chicago ORD and arrives at Philadelphia ILG. Allow about 3h 10m for reaching the departure terminal and leaving the arrival one. That time is already inside every door to door figure quoted on this page.
When should I book the Flight from Chicago to Philadelphia?
Fares for the Flight from Chicago to Philadelphia bottom out around 45 days ahead, at €74.48. The gap between the cheapest and most expensive lead time across the window is 197 percent, measured on September 12, 2026. Booking inside the final week has consistently cost more.
How much CO2 does the Flight from Chicago to Philadelphia produce?
The Flight from Chicago to Philadelphia produces about 270.8 kg of CO2 per passenger over 1101 km, which works out at roughly 246 grams per passenger kilometer. That figure is for the whole journey and for one traveler, not for the vehicle.
Where these numbers come from
Observed service A carrier record shows this named operator serving this named pair, and we carry that through unchanged.
Schedules, seat counts and fares are generated by our own model until the supplier contracts are signed. Places, coordinates, operators, which operator serves which pair, and every distance are real. We would rather say that on every page than let a modeled number pass for a filed one.
Defined in full at Door to door, Fares, The booking window, Carbon
- On this page
- Every figure above was computed for Chicago to Philadelphia on September 12, 2026: 1101 km of route against 1069 km in a straight line, 64 services a day, 8 operators, a cheapest fare of €108.11, and 4h 58m door to door on the fastest mode. The return direction is computed separately and its numbers are not these numbers.
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