Cheap Flights from Philadelphia to Chicago O'Hare International

Compare Philadelphia to Chicago O'Hare International flight deals

Find the cheapest month or even day of the year to fly to Chicago O'Hare International

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Flight deals from Philadelphia to Chicago O'Hare International

Looking for a cheap last-minute deal or the best return flight from Philadelphia to Chicago O'Hare International? Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Philadelphia to Chicago O'Hare International

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Philadelphia to Chicago O'Hare International flights are currently cheapest in October.

Direct flights from Philadelphia to Chicago O'Hare International

Philadelphia to Chicago O'Hare International: Alternative routes

Compare routes from Philadelphia to Chicago below. You may find an airport to fly into that's cheaper, faster, or easier than Chicago O'Hare International.

Philadelphia to Chicago: Flight information

The things to know before you go.
Cheapest flight foundR 972
Cheapest month to flyOctober
Average flight time2 hrs, 28 mins
Most popular airlineAmerican Airlines
Average flights per week297

Finding cheap flights from Philadelphia to Chicago O'Hare International: Frequently asked questions

The best price we found for a return flight from Philadelphia to Chicago O'Hare International is R 1,846. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
2 hours and 28 minutes is the average flight time from Philadelphia to Chicago O'Hare International.
American Airlines, Alaska Airlines and Qatar Airways fly direct from Philadelphia to Chicago O'Hare International.
As of July 2025, there are 297 flights per week flying from Philadelphia to Chicago O'Hare International.
The cheapest month to fly from Philadelphia to Chicago O'Hare International is usually September.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Philadelphia to Chicago O'Hare International Airport on Thursday, 11 September 2025.
Yes – the average flight time is 2 hours and 28 minutes.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Chicago O'Hare International but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Chicago is around 40 days in advance, so don’t leave your flight to the last minute.
The cheapest airline that flies to Chicago O'Hare International is Frontier Airlines .

Travelling from Philadelphia to O'Hare International Airport (ORD): What you need to know

  • Your travel plans take shape at one of Philadelphia's main airports, Philadelphia International Airport (PHL) or Trenton-Mercer Airport (TTN). Check out your options for booking a flight from Philadelphia to O'Hare International Airport (ORD) taking off from either of these.

  • Expect to be travelling for 2 hours 25 minutes. That's the average journey time for a direct Philadelphia to O'Hare International Airport flight.

  • Chicago is one hour behind Philadelphia. O'Hare International Airport is located in Chicago, which runs on the UTC-5 timezone.

  • Philadelphia International Airport (PHL) to O'Hare International Airport (ORD) is the most popular route. There are 86 direct departures a week to choose from. If you prefer starting your day later, take the last flight with American Airlines at 9:40pm. Go for the first PHL to ORD departure operated by American Airlines at 5am if you'd rather get going earlier.

  • For a smooth journey, turn up at the airport two hours ahead of international flights and one hour before domestic departures. This ensures you have enough time to catch your flight from Philadelphia to ORD.

  • During peak travel periods, allow for longer wait times and be there earlier. Aim for at least two hours ahead for domestic flights and up to four hours for international trips.

Airports in Philadelphia

Philadelphia International Airport (PHL)

  • You can jump on a direct flight from Philadelphia to O'Hare International Airport (ORD) departing from Philadelphia International Airport (PHL).

  • Choose from a variety of airlines operating direct flights from Philadelphia to O'Hare International Airport leaving from PHL. Book your ticket with one of these:

  • American Airlines is the airline with the highest number of bookings for flights from PHL to ORD.

  • The carrier with the top on-time arrival rate on this route is American Airlines.

  • Travelling from central Philadelphia to PHL takes around 45 minutes by public transport. If you drive, ride-share or grab a cab, you'll cover the 19 kilometres in 15 minutes or so, depending on traffic.

  • Catching an early flight from Philadelphia to O'Hare International Airport? Avoid the last-minute rush to the terminal (and sneak in some extra precious sleep) by choosing one of these stays close to Philadelphia International Airport:

  • Of all flights leaving Philadelphia International Airport, 78.93% land on time at their destination.

  • The address for PHL is 8500 Essington Ave.

Trenton-Mercer Airport (TTN)

  • You can get to TTN from central Philadelphia in approximately 40 minutes by car (depending on traffic conditions). The ride on public transport will take roughly 1 hour 45 minutes to cover the 56 kilometres or so.

  • Kick off your holiday early with an additional night away from home. Before your Philadelphia to ORD flight, stay in one of these hotels near Trenton-Mercer Airport:

  • Trenton-Mercer Airport has a solid reputation for punctual service. 82.45% of flights taking off from here land when expected.

  • TTN is located at Scotch Road, Terminal Building.

About O'Hare International Airport (ORD)

Getting from O'Hare International Airport (ORD) to central Chicago

  • O'Hare International Airport to central Chicago is about 26 kilometres. If you're renting a car or taking a cab, do a little research to make your trip as easy as possible. Journey times can vary based on traffic and the time of day.

  • When travelling by public transport, expect a journey time of about 55 minutes.

How to find the cheapest flights from Philadelphia to O'Hare International Airport (ORD)

  • Right now, R 972 is the best price we've found for a one-way ticket from Philadelphia to O'Hare International Airport. The cheapest price for a return flight is R 1,846. Keep in mind fares may change due to availability at the time of booking.

  • Booking ahead of time is often the key to scoring a cheap flight from Philadelphia to ORD. Prices tend to rise as demand increases, so the closer you get to departure, the more expensive your ticket may be.

  • The 'Whole month' tool shows you the cheapest Philadelphia to O'Hare International Airport tickets across each month. It's a good way to find a bargain if your dates aren't set in stone.

  • Locking in a cheap plane ticket from Philadelphia to ORD is a breeze with Price Alerts. Simply create one of these automatic alerts and we'll notify you as soon as the price has dropped.

  • Bag the best deal on a flight from Philadelphia to O'Hare International Airport with the help of the filters. Choose your ideal arrival and departure times, number of stops and airlines. You can also sort your results by 'Fastest,' 'Best' or 'Cheapest.'

The best time to fly from Philadelphia to O'Hare International Airport (ORD)

  • February is the quietest month for flights from Philadelphia to O'Hare International Airport (ORD), while August is the busiest. Figure out the ideal time to go to Chicago based on whether you want a lively atmosphere or a more laid-back vibe.

  • The warmest month in Chicago is July, with temperatures ranging between 15ºC (59ºF) and 29ºC (84ºF). Book your Philadelphia to ORD plane ticket then if that's your ideal forecast.

  • For cooler conditions, search for a cheap ticket from Philadelphia to O'Hare International Airport in January when temperatures are between -12ºC (10ºF) and 3ºC (37ºF).

More about Chicago

Explore more of the United States

  • Indianapolis is just one of the many cities in the United States waiting to be discovered after you've experienced Chicago. Around 290 kilometres away to the south-east, its best attractions include 9-11 Memorial, Lucas Oil Stadium and Eiteljorg Museum.

  • Around 121 kilometres north of Chicago, Milwaukee is another essential stop in the United States. Start your sightseeing at Richards Duplex Apartments by Frank Lloyd Wright, Miller Park and Milwaukee County Zoo.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.