CHI - PHL

$109 Find Cheap Flights from Chicago to Philadelphia - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Chicago to Philadelphia departing on 9/8. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
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Everything you should know

Cheapest round-trip
$174
Typical prices: $189-$355
Frontier
Thu 8/27Sat 8/29
ORD - PHL • Non-stop
Cheapest non-stop
$176
Typical prices: $184-$334
Frontier
Thu 9/3Fri 9/4
ORD - PHL • Non-stop
Advice from real travelers
AI-powered summary based on content written by travel experts. AI can make mistakes.
Frontier Premium Bundle adds legroom; United Economy Plus offers up to 6 inches more.
American Main Cabin Extra adds early boarding; Southwest includes free snacks.
Expert advice
Expert advice
Expert advice
Expert advice
Top airlines
Cheapest • from $174 (round-trip)
Best reviews • 8.0 score
Airline reviews
Airline reviews
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+1
Nonstop flights
You can fly direct with American Airlines, Southwest and others. Average duration is 2h 09m
Direct flights
Direct flights
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Direct flights
Direct flights
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Top routes
Cheapest • 33% average savings
Most popular
Insights
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Avoid delays
Most punctual • 79% on-time
Best time • Fewest delays
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When to book
in advance
Our data shows that travelers who book at least 3 weeks in advance save around 31% compared to booking last minute.
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When to travel
Cheapest • 37% price drop
Most popular
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Flight Deals

Cheap Flights from Chicago to Philadelphia (CHI-PHL)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Chicago to Philadelphia that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Chicago to Philadelphia

Thu, Aug 27 - Sat, Aug 29
Frontier Logo
6:00 am - 9:17 am
ORD
-
PHL
2h 17mnonstop
Frontier Logo
8:15 am - 4:00 pm
PHL
-
ORD
8h 45m
1 stop
$174Frontier
Thu, Aug 27 - Wed, Sep 2
Frontier Logo
6:00 am - 9:17 am
ORD
-
PHL
2h 17mnonstop
Frontier Logo
5:16 pm - 11:08 pm
PHL
-
ORD
6h 52m
1 stop
$174Frontier
Thu, Aug 20 - Mon, Aug 24
Multiple Airlines Logo
6:00 am - 9:17 am
ORD
-
PHL
2h 17mnonstop
Multiple Airlines Logo
6:40 pm - 12:50 pm
PHL
-
ORD
43h 10m
2 stops
$177Multiple Airlines
Fri, Oct 16 - Sun, Oct 18
Multiple Airlines Logo
9:38 am - 5:59 pm
ORD
-
PHL
7h 21m
1 stop
Multiple Airlines Logo
4:47 pm - 6:24 pm
PHL
-
ORD
2h 37mnonstop
$184Multiple Airlines
Thu, Sep 24 - Thu, Sep 24
American Airlines Logo
5:00 am - 8:15 am
ORD
-
PHL
2h 15mnonstop
American Airlines Logo
10:38 am - 12:16 pm
PHL
-
ORD
2h 38mnonstop
$251American Airlines
Sat, Sep 12 - Sat, Sep 19
American Airlines Logo
7:30 pm - 10:49 pm
ORD
-
PHL
2h 19mnonstop
American Airlines Logo
7:39 pm - 9:30 pm
PHL
-
ORD
2h 51mnonstop
$256American Airlines
Tue, Aug 18 - Mon, Aug 31
United Airlines Logo
6:30 am - 9:38 am
ORD
-
PHL
2h 08mnonstop
United Airlines Logo
10:34 am - 11:59 am
PHL
-
ORD
2h 25mnonstop
$257United Airlines
Wed, Aug 19 - Sat, Aug 22
United Airlines Logo
2:30 pm - 5:54 pm
ORD
-
PHL
2h 24mnonstop
United Airlines Logo
1:30 pm - 2:55 pm
PHL
-
ORD
2h 25mnonstop
$257United Airlines
Thu, Aug 20 - Mon, Aug 24
Southwest Logo
9:30 am - 12:25 pm
MDW
-
PHL
1h 55mnonstop
Southwest Logo
10:20 am - 11:25 am
PHL
-
MDW
2h 05mnonstop
$257Southwest
Mon, Aug 24 - Thu, Aug 27
Southwest Logo
9:30 am - 12:25 pm
MDW
-
PHL
1h 55mnonstop
Southwest Logo
10:20 am - 11:25 am
PHL
-
MDW
2h 05mnonstop
$257Southwest
Booking Insights

KAYAK's insights & trends for Chicago to Philadelphia flights

Get data-powered insights and trends into flights from Chicago to Philadelphia to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Chicago to Philadelphia?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Chicago to Philadelphia departing in August.

Flight prices are below average for this route right now.

Flights to Philadelphia from Chicago usually cost between $186 and $325 in August.
The lowest price found in the past 5 days was $174 on Frontier (Aug 27-Sep 1).

What is the cheapest Chicago to Philadelphia flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The absolute cheapest return flight from Chicago to Philadelphia costs $126 on the route between Chicago O'Hare Intl Airport (ORD) and Philadelphia (PHL). However, over the past month, flights between Chicago Midway Airport (MDW) and Philadelphia (PHL) were, on average, 33% cheaper than other Chicago-Philadelphia routes. The most popular route is between Chicago O'Hare Intl Airport (ORD) and Philadelphia (PHL).

What’s the cheapest day of the week to fly from Chicago to Philadelphia?

The average price of all round-trip flights from Chicago to Philadelphia clicked on KAYAK for each day over the last 12 months.

Your flight ticket price will generally be cheaper if you fly to Philadelphia on a Friday and more expensive on a Monday. On your return trip to Chicago, you should consider flying back on a Friday, and avoid Sundays for better deals.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Chicago to Philadelphia, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Chicago to Philadelphia is October, where tickets cost $189 (return) on average. On the other hand, the most expensive months are June and March, where the average cost of round-trip tickets is $379 and $377 respectively.

Can I save money by flying with a layover from Chicago to Philadelphia?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of $342, prices are generally cheapest when you fly direct.

How far in advance should I book a flight from Chicago to Philadelphia?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Chicago to Philadelphia, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Chicago to Philadelphia, you should book around 3 weeks before departure, which saves you about 31% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 16 weeks before departure.

Expert advice

Expert advice for your flight from Chicago to Philadelphia

 
AI-powered summary based on content written by travel experts. AI can make mistakes.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Stefanie Waldek

Stefanie Waldek

Expert on Frontier, United Airlines, ORD and MDW

Stefanie Waldek is a freelance space, travel, and design writer based in Saratoga Springs, NY. Her words have appeared in Space.com, Travel + Leisure, Condé Nast Traveler, Architectural Digest, and House Beautiful, among other publications. An expert in aviation and expedition cruising, Stefanie is frequently up in the air or on the sea, likely en route to Antarctica or the Arctic.

Harriet Baskas

Harriet Baskas

Expert on American Airlines and PHL

Harriet is an award-winning journalist who is happiest in an airport or an unusual museum. Her stories about airports, air travel, and the business of travel have appeared on NBC News, CNBC, USA TODAY, The Points Guy and other outlets. She is the creator of the StuckatTheAirport.com blog and the author of nine books. When not out on the road or exploring the latest airport amenities, she’s home in Seattle getting ready for the next adventure.

Blane Bachelor

Blane Bachelor

Expert on Southwest

Blane Bachelor is a journalist and editor specializing in travel and aviation who writes regularly for top global outlets. Born and raised in Florida, Blane has worked and lived in four countries, including the Netherlands, where she’s currently based with her family. Her favorite way to get to know a new destination is by running or riding a bike around town – or hearing a spooky ghost story about local history. She will always choose the window seat.

Good to know

Low season

February

Cheapest flight

$109
Best time to beat the crowds but there is an average 6% increase in price.
Most popular time to fly and prices are also 5% lower on average.
Flight from Chicago O'Hare Airport to Philadelphia

When to book flights from Chicago to Philadelphia

Are your dates flexible? Find out the best times to travel from Chicago to Philadelphia based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Chicago to Philadelphia

  • What are the means of transportation from Philadelphia Airport to Downtown Philadelphia?

    Travelers arriving at the Philadelphia airport have access to a number of transport options from the airport to the city center. If you prefer public transportation, the SEPTA Airport Regional Rail Line offers transport every 30min. You can also choose to hail a taxi at Zone 5 on the S. Commercial Roadway.

  • Does O’Hare International Airport (ORD) have facilities for the disabled?

    O’Hare International Airport (ORD) caters to disabled travelers to ensure they are comfortable and enjoy their trip. The airport has elevators with braille buttons, wheelchair access for those with physical disabilities or aged travelers, a telephone for the impaired and visual paging.

  • Are there shops available and restaurants available at the Philadelphia Airport?

    In case you are traveling to Philadelphia from Chicago and need a bite or a drink, the airport has shops and restaurants located within the airport to serve you. You can visit Hudson News, Dunkin, Duty-Free by 3Sixty and Chikie’s & Pete’s located at Terminal A. Jack Duggan’s Pub and Restaurant is located at Terminal A – East.

  • Where can I get assistance with flight information at the O’Hare International Airport (ORD)?

    Travelers from Chicago to Philadelphia can access information from the airport’s information desk located within the terminal buildings. The desks will help you access information on flight delays, timings and any other inquiries you may need.

  • What is the cheapest flight from Chicago to Philadelphia?

    In the last 5 days, the lowest price for a flight from Chicago to Philadelphia was $109 for a one-way ticket and $174 for a round-trip.

  • Do I need a passport to fly between Chicago and Philadelphia?

    No, a passport isn't needed to fly from Chicago to Philadelphia. However, local authorities might ask for an official ID.

  • Which airports will I be using when flying from Chicago to Philadelphia?

    On your way to Philadelphia, you’ll fly out from one of these Chicago airports: Chicago Midway or Chicago O'Hare Intl. You’ll be landing at Philadelphia.

  • Which airlines offer Wi-Fi service onboard planes from Chicago to Philadelphia?

    American Airlines, and Delta offer inflight Wi-Fi service on the Chicago to Philadelphia flight route.

  • Which aircraft models fly most regularly from Chicago to Philadelphia?

    The Boeing 737-800 is the aircraft model that flies most regularly on the Chicago to Philadelphia flight route.

  • Which airline alliances offer flights from Chicago to Philadelphia?

    oneworld, and Star Alliance are the airline alliances operating flights between Chicago and Philadelphia, with oneworld being the most commonly used for this route.

  • On which days can I fly direct from Chicago to Philadelphia?

    There are nonstop flights from Chicago to Philadelphia on a daily basis.

  • Which is the best airline for flights from Chicago to Philadelphia, Southwest or United Airlines?

    The two airlines most popular with KAYAK users for flights from Chicago to Philadelphia are Southwest and United Airlines. With an average price for the route of $345 and an overall rating of 8.0, Southwest is the most popular choice. United Airlines is also a great choice for the route, with an average price of $379 and an overall rating of 7.4.

  • How does KAYAK find such low prices on flights from Chicago to Philadelphia?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Chicago to Philadelphia.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Chicago to Philadelphia?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Philadelphia from Chicago is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Chicago to Philadelphia?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Philadelphia with an airline and back to Chicago with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Chicago to Philadelphia?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Philadelphia from Chicago up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Chicago to Philadelphia

  • Looking for a cheap flight? 25% of our users found flights on this route for $190 or less one-way and $282 or less round-trip.
  • Travelers who wish to fly from Chicago can take their flights at the O’Hare International Airport (ORD) or the Chicago Midway International Airport (MWD). The O’Hare International Airport (ORD) is located about 17 miles from the Chicago Loop. It offers a comfortable space and a relaxing environment, especially for military personnel who are still active in service and their families.
  • At the O’Hare International Airport (ORD), you will have access to banking, communications and currency exchange facilities and services. Seaway National Bank has a branch at the airport located at Terminal 2. The airport also has several foreign currency exchange bureaus for increased convenience. ATMs are also available at all the terminal buildings to give an easy way to withdraw cash.
  • The Chicago Midway International Airport (MWD) is located 29 miles from the O’Hare International Airport (ORD) and is convenient for a mother traveling with her baby. Concourse C at the airport offers a mother’s room, which is suitable for breastfeeding and baby care in a private space.
  • The Chicago Midway International Airport (MWD) offers a Yoga Room for travelers to relax before a flight. You can practice, meditate and unwind in this room before you take your flight to reduce anxiety. The airport also has a medical defibrillator in different locations in the airport. You can also get medical treatment or urgent care at the upper level of Terminal 2, courtesy of the University of Illinois at the medical center of Chicago.
  • Travelers arriving at the Philadelphia Airport (PHL) on a business trip or meeting have access to free Wi-Fi. Travelers can access the Airport Marriott from the pedestrian bridge at Terminal B. If you have carried your laptop, the airport offers data ports for public use to all travelers.

Prefer to fly direct from Chicago to Philadelphia?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Chicago to Philadelphia.
Find which airlines fly direct from Chicago to Philadelphia Airport, which days they fly and book direct flights.

Direct departures

Chicago to Philadelphia

Monday

American Airlines,Frontier,Southwest, +1 more

American Airlines,Frontier, +2 more

Tuesday

American Airlines,Southwest,United Airlines

American Airlines,Southwest, +1 more

Wednesday

American Airlines,Southwest,United Airlines

American Airlines,Southwest, +1 more

Thursday

American Airlines,Frontier,Southwest, +1 more

American Airlines,Frontier, +2 more

Friday

American Airlines,Frontier,Southwest, +1 more

American Airlines,Frontier, +2 more

Saturday

American Airlines,Frontier,Southwest, +1 more

American Airlines,Frontier, +2 more

Sunday

American Airlines,Frontier,Southwest, +1 more

American Airlines,Frontier, +2 more

See more direct flights

Direct returns

Philadelphia to Chicago

Monday

American Airlines,Frontier,Southwest, +1 more

American Airlines,Frontier, +2 more

Tuesday

American Airlines,Southwest,United Airlines

American Airlines,Southwest, +1 more

Wednesday

American Airlines,Southwest,United Airlines

American Airlines,Southwest, +1 more

Thursday

American Airlines,Frontier,Southwest, +1 more

American Airlines,Frontier, +2 more

Friday

American Airlines,Frontier,Southwest, +1 more

American Airlines,Frontier, +2 more

Saturday

American Airlines,Frontier,Southwest, +1 more

American Airlines,Frontier, +2 more

Sunday

American Airlines,Frontier,Southwest, +1 more

American Airlines,Frontier, +2 more

See more direct flights

Reviews of the top 4 airlines serving from Chicago to Philadelphia

 
See real verified KAYAK customer reviews for airlines flying from Chicago to Philadelphia. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Chicago to Philadelphia? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
SouthwestOverall score based on 4230 reviews
7.5Entertainment
8.1Boarding
8.0Comfort
8.6Crew
7.0Food
Airline reviews

Overall good, just screaming kids in the area the whole flight.

8.0 ExcellentAnonymous, Jul 2026
MDW - MHT
Read more Southwest reviews

Overall good, just screaming kids in the area the whole flight.

OKay. I sat in the back of the plane and it was really loud between babies and little kids, and adults who.like to talk a lot and loudly most of the flight.

The first time I flew in the extra legroom section. It was difficult to notice a difference. I had bad luck with my neighbors. The crew was okay. Southwest has reduced the live TV options.

I flew twice this week on Southwest, was delayed over 2 hours both ways. From Pittsburgh to Chicago it was due to weather but the gate agents, pilot etc were great at updating everyone. Today from Midway to Pittsburgh the plane had come from an international location, kept getting delayed, no information was given until we were delayed for the third time. It was ridiculous, whoever scheduled that plane to fly to Pittsburgh after didn’t consider a lot of things.

The staff was very friendly, professional, and courteous. The overall flight was a great experience.

Plane crashed into a bus or some other vehicle on the ground while pulling out of the gate. No injuries, but wing tip was damaged and returned to gate for “maintenance issues” and we departed 5 hours later because the plane went out of service and new plane was flown in from a nearby airport, Midway.

All was good. I just had a hard time getting connected to the WiFi/internet during the flight

after landing, we stay 2 hours on the taxi way before reaching the gate The airline and the crew were good though

I'm not a fan of Southwest's model. I don't like the herding style of boarding.

The crew was very nice and respectful and everything went well.

It was hot and not as comfortable as the flight to Chicago. Must have been a different plane that needs to be worked on or replaced.

The SFO lounge closes at 12 midnight. My flight took off at 2AM

It was extremely hot in the cabin the entire flight, vent air was worn

Have not had a flight out or returning to Norfolk that has not required maintenance, and a gate delay. Properly staff the crew so maintenance can be performed without last minute emergencies on each flight and there is enough staff to have gates prepared for inbound flights. Staff to ensure the safety and on time service vs. profit.

My original flight was cancelled and that affected my trip and my plans and I got no compensation and customer service was hard to reach as well

The flight was delayed by a hour and I wish they had communicated it sooner. No issues on the plane, it did take a while for food to come.

Know that the movies that you are going to be offered are the oldest be rated movies they could possibly get. They may have one or two new movies that they keep advertising but when you’re flying 15 hours, there is nothing to see past the first new movie.

I still prefer Delta, but Delta doesn’t fly to State College PA.

Nothing bad to say about the actual crew or airline. It was nice to have a complimentary FULL can of soda, as well as a snack. Blankets and earbuds were also provided at no cost for this red eye flight. I especially appreciated the free WiFi and movie selection with the Bluetooth option. It helped the flight pass more quickly. No matter who you fly, boarding and disembarking are always SUCH a pain. As I mentioned, this is on the passengers and not the crew!!

Flight attendants rude and impolite… flight delayed by almost 5 hours.

the first flight smelled like urine Ac didn’t work pathetic experience

We were delayed due to a mechanical issue, but the gate staff and then later captain were giving thorough and frequent updates. Ended up being delayed about an hour, but we did get out, so it was overall a good flight!

My luggage never made it, I booked business class only to find out I’m sitting in the back. Very disappointed with the reservation

I found the seats ergonomically uncomfortable forcing the body to seat slightly hunched. For a short flight I worked on adjustments but for a longer flight, it would be difficult.

Crew were all friendly and helpful. It was a short flight so just a beverage service with a cookie. After we were boarded the plane took about 45 minutes to leave the gate but it was New Year’s Eve so not shocking there was some delay. Overall good experience and very grateful.

I chatted with the captain before the flight, and similarly during the welcome announcement, he warned of a turbulent flight that may impact the in-flight service. However, once at altitude, he announced that the weather changed and he immediately turned off the seatbelt sign. But it appeared the cabin crew had already decided to take off this flight. They remained seated and then just chatted in the galley. The flight was fully catered, but only first class received service.

My flight attendant was attentive! The elderly person next to me was flatulent and the flight attendant could see that I was in distress and brought me some face masks

Flight was delayed at departure due to weather and the need for de-icing. The flight was smooth but there was a delay at arrival due to weather. We were in a hold for 20 minutes or more. The flight arrived more than 30 minutes late. Airlines have no control over the weather and I'm glad that they follow all safety procedures. Had to wait a long time for my checked luggage. Whole process was slow and the bags arrived wet due to the rain. The onboard wifi and entertainment access was spotty and the signal was dropped several times. Otherwise the crew was great and friendly. They tried to get everyone's bags stowed and seated so we could take off.

I appreciate that the flight boarded and departed on time and landed slightly early. However, the plane was completely full (I suspect overbooked) and took a long time to board, during which time the CO2 level in the cabin climbed over 2,200 ppm, which is NOT SAFE given that COVID-19 is still being transmitted at a substantial rate across most of the country and airlines no longer require passengers to mask. Also, the midflight credit card sales pitch was tacky. It's like our airlines are being run by Ferengi.

As it was a very short flight, there was no food only drinks offered. And there was no entertainment. They had to use your own phone for entertainment.

Not clean and was told I would get a great seat and it was not great at all

No knowledgeable staff at the counter or in a flight crew. No one knew why once flight landed at Philadelphia Airport then it took them 4 hours from runway to gate . Damn they took 4 hours to reach the gate . They messed up whole night for myself and for my kids.

Horrible communication about delay of flight and what options were available

Online check-in was not user-friendly. Too many fees, not cost effective.

FRONTIER SUCKS! The agent downstairs tricked me into booking, just to get to the gate. At the gate, they told me they couldn't help. I then called Customer Service. They and the gate attendants kept blaming each other. Neither side was willing to help the customer.

My experience with frontier staff at the Denver airport was absolutely horrible. The manager on duty was even worst if was the worst experience I have ever had, I have never been treated so poorly as a customer in my life! The staff was extremely rude, eye rolls and attitude and then refusal to help me at all. I wish I could never fly frontier again that’s how horrible it was!

Good for the price. My only complaint is that the pilot should keep the air flowing while passengers are waiting to getting out of airplane.

I arrived 1 hour prior to boarding, and they said I was too late for a domestic flight. First time I heard that :-(

Crew members are very rude and not cooperate with passengers.

Well, I didn’t have food! So NA wasn’t an option. I’ll be back!

Everything you need to know for your flight from Chicago to Philadelphia

Other airlines flying from Chicago to Philadelphia

Flights from the other most popular airlines that fly from Chicago to Philadelphia according to KAYAK users. Prices are the lowest found on KAYAK over the last 7 days. Price and availability are not guaranteed.

Compare transportation modes for Chicago to Philadelphia

Transportation modeAverage priceAverage duration
Flights$1,1451h 55m
Trains$53325h 56m