Route guide · 676 miles
Cheap Flights from Chicago to Philadelphia
ORD → PHL · Nonstop 1h 52m · Live round-trip fares
The run from Chicago (ORD) to Philadelphia (PHL) is 676 miles of sky, and ticket prices on it are anything but steady. One week can cost double the next. Booking about 2–4 weeks in advance — and watching fares with a free Flyzento alert — is how regulars on this route keep costs down.
Live fares for ORD → PHL are updating. Use the search below for real-time prices.
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Flight time
1h 52m
Nonstop, typical
Distance
676 mi
ORD → PHL
Book ahead
2–4 weeks
Best window, typically
Nonstop airlines
2
American Airlines, United Airlines
Nonstop flights from Chicago to Philadelphia
The fastest way between the two cities is the nonstop: about 1h 52m for the 676-mile run from ORD to PHL. Those flights are flown by American Airlines, United Airlines. Prices behave best when you book 2–4 weeks out.
Booking insights: Chicago → Philadelphia
- Distance: 676 miles · nonstop flight time: 1h 52m.
- Fares tend to bottom out when you book about 2–4 weeks ahead — earlier than that rarely helps, later usually hurts.
- Midweek departures (Tue–Thu) are consistently cheaper than weekend flights.
- A free fare alert beats daily checking: we watch this route and ping you when prices drop.
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Flying from Chicago to Philadelphia: what you need to know
The flight
The nonstop from ORD to PHL runs about 1h 52m over 676 miles. It's a comfortable mid-range flight: long enough that seat choice matters a little, short enough that paying up for extras rarely does.
Airlines on this route
American Airlines and United Airlines fly this route nonstop. That matters more than it sounds: the cheapest fare on one carrier is rarely the same product as the cheapest on another. Checked-bag fees, free seat selection and change rules all differ, so compare the full trip cost before you pick a winner. See our airline guides for exactly what each carrier charges — then send an enquiry and we'll confirm the all-in price for your dates.
Leaving from Chicago (ORD)
Plan to be at the airport two hours before a domestic departure — ninety minutes can work at smaller airports outside peak times, but security lines are the one variable you can't control. If you're checking a bag, add time rather than cutting it close. Our Chicago airport guide covers terminals, parking and ground transport so you can plan the trip to the airport, not just the flight.
Arriving in Philadelphia (PHL)
Before you land, know how you're getting from the airport to where you're staying — it's the part of the trip people forget to plan. The Philadelphia airport guide lays out your ground options, from transit and shuttles to rideshares and rental cars. Flying back the other way? Check Philadelphia to Chicago fares — prices on the return direction often move on a different rhythm.
When to book
For a trip of 676 miles, booking 2–4 weeks ahead typically lands you in the sweet spot. Leave it to the final two weeks and prices usually climb as the cheapest seats sell out. If your dates are flexible, midweek departures are where the lower fares hide on most domestic routes.
Good to know before you go
- Basic economy fares often exclude checked bags and seat selection. Price the whole trip, not the headline fare.
- Get to the airport two hours before departure; security, not the flight, is the part that runs late.
- If you're traveling with only a carry-on, you can skip the bag-drop line entirely with mobile check-in.
- Download the airline's app before you fly; gate changes and delays show up there first.
- Nonstop time on this route is about 1h 52m — a one-stop itinerary needs to be a lot cheaper to be worth the extra hours.
Chicago to Philadelphia flight FAQs
How long is the flight from ORD to PHL?
Plan on about 1h 52m in the air for a nonstop from Chicago to Philadelphia — the route runs roughly 676 miles. Connecting flights typically add 2–4 hours.
Are there nonstop flights from Chicago to Philadelphia?
American Airlines, United Airlines typically operate nonstop flights from ORD to PHL. Nonstops are usually cheapest when booked 2–4 weeks ahead of departure.
What is the cheapest month to fly from Chicago to Philadelphia?
Travelers usually find the gentlest prices away from peak periods — think post-holiday January and the early-fall weeks. Midweek dates inside those windows are cheaper still.
How much are last minute flights from ORD to PHL?
Last-minute flights from ORD to PHL (booked within 7 days of departure) typically cost noticeably more than fares booked 2–4 weeks out. Booking early is the smarter move.
What is a good round-trip deal from Chicago to Philadelphia?
A good deal is anything at or below the recent fares shown above. Set a free Flyzento alert and we'll ping you the moment fares drop.
Which airlines fly from Chicago to Philadelphia?
You'll mainly see American Airlines, United Airlines on Chicago to Philadelphia. Checking each against the live fares below is the surest way to find the lowest price for your dates.
How early should I get to Chicago airport for this flight?
Plan on two hours before departure for a domestic flight — ninety minutes can work at smaller airports outside peak times. If you're checking a bag, earlier is better; the bag-drop line, not the flight, is what runs late.
Do the cheapest fares on this route include a checked bag?
Usually not. Basic economy fares on most airlines include a carry-on but charge extra for checked bags, and seat selection can cost more too. Add up the real total before comparing — a slightly higher regular fare sometimes works out cheaper. Our team confirms the full breakdown with you before you pay.
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