PHL - CHI

$96 Find Cheap Flights from Philadelphia to Chicago

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Philadelphia to Chicago departing on 8/17. 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.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Chicago

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Philadelphia to Chicago, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Philadelphia to Chicago, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$201
Typical prices: $347-$189
Frontier
Mon 8/3Sat 8/15
PHL - ORD • 1 stop
Cheapest non-stop
$203
Typical prices: $349-$188
Frontier
Fri 8/7Sat 8/15
PHL - ORD • Non-stop
Advice from real travelers
AI-powered summary based on content written by travel experts. AI can make mistakes.
Frontier Economy Bundle adds a carry-on and seat choice; Premium Bundle adds legroom.
Southwest cancellation policy is flexible; United Economy Plus adds legroom.
Expert advice
Expert advice
Expert advice
Expert advice
Top airlines
Cheapest • from $201 (round-trip)
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
You can fly direct with American Airlines, Southwest and others. Average duration is 2h 23m
Direct flights
Direct flights
+1
+1
Direct flights
Direct flights
+1
Top routes
Cheapest • 15% average savings
Most popular
Insights
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Insights
Insights
Avoid delays
Most punctual • 90% on-time
Best time • Fewest delays
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg $110 (round-trip)
Shortest trip • 3h 48m (one-way)
Insights
Insights
Insights
Insights
When to book
in advance
Our data shows that travelers who book at least 3 weeks in advance save around 28% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 89% price drop
Most popular
Good to know
Good to know
+1
+1
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+1
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Flight Deals

Cheap Flights from Philadelphia to Chicago (PHL-CHI)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Philadelphia to Chicago 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 Philadelphia to Chicago

Mon, Aug 3 - Sat, Aug 15
Frontier Logo
4:49 pm - 11:10 pm
PHL
-
ORD
7h 21m
1 stop
Frontier Logo
8:52 pm - 12:15 am
ORD
-
PHL
2h 23mnonstop
$201Frontier
Wed, Aug 5 - Fri, Aug 14
Frontier Logo
8:30 am - 7:53 pm
PHL
-
ORD
12h 23m
1 stop
Frontier Logo
8:58 pm - 12:21 am
ORD
-
PHL
2h 23mnonstop
$202Frontier
Sat, Aug 22 - Mon, Aug 24
JetBlue Logo
8:28 am - 12:59 pm
PHL
-
ORD
5h 31m
1 stop
JetBlue Logo
10:56 am - 8:00 pm
ORD
-
PHL
8h 04m
1 stop
$203JetBlue
Sat, Aug 15 - Tue, Aug 18
United Airlines Logo
5:01 pm - 6:31 pm
PHL
-
ORD
2h 30mnonstop
United Airlines Logo
6:13 pm - 9:27 pm
ORD
-
PHL
2h 14mnonstop
$204United Airlines
Wed, Aug 26 - Sat, Aug 29
Southwest Logo
10:45 am - 11:55 am
PHL
-
MDW
2h 10mnonstop
Southwest Logo
8:10 am - 11:15 am
MDW
-
PHL
2h 05mnonstop
$204Southwest
Tue, Aug 4 - Tue, Aug 11
Delta Logo
5:15 am - 9:23 am
PHL
-
ORD
5h 08m
1 stop
Delta Logo
8:48 am - 4:33 pm
ORD
-
PHL
6h 45m
1 stop
$205Delta
Wed, Aug 5 - Wed, Aug 12
Delta Logo
5:15 am - 9:59 am
PHL
-
MDW
5h 44m
1 stop
Delta Logo
1:27 pm - 7:25 pm
MDW
-
PHL
4h 58m
1 stop
$205Delta
Thu, Aug 20 - Sat, Aug 22
Frontier Logo
5:06 pm - 6:47 pm
PHL
-
ORD
2h 41mnonstop
Frontier Logo
7:52 pm - 11:20 pm
ORD
-
PHL
2h 28mnonstop
$206Frontier
Thu, Jul 23 - Sat, Jul 25
Frontier Logo
6:05 pm - 7:47 pm
PHL
-
ORD
2h 42mnonstop
Frontier Logo
8:52 pm - 12:15 am
ORD
-
PHL
2h 23mnonstop
$207Frontier
Wed, Aug 26 - Wed, Sep 2
Southwest Logo
7:15 am - 3:25 pm
PHL
-
MDW
9h 10m
2 stops
Southwest Logo
2:00 pm - 9:50 pm
MDW
-
PHL
6h 50m
1 stop
$210Southwest
Booking Insights

KAYAK's insights & trends for Philadelphia to Chicago flights

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

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

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

What is the cheapest Philadelphia to Chicago flight route?

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

The absolute cheapest return flight from Philadelphia to Chicago costs $217 on the route between Philadelphia (PHL) and Chicago O'Hare Intl Airport (ORD). However, over the past month, flights between Philadelphia (PHL) and Chicago Midway Airport (MDW) were, on average, 15% cheaper than other Philadelphia-Chicago routes. The most popular route is between Philadelphia (PHL) and Chicago O'Hare Intl Airport (ORD).

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

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

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

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Philadelphia to Chicago, 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 Philadelphia to Chicago is February, where tickets cost $40 (return) on average. On the other hand, the most expensive months are January and December, where the average cost of round-trip tickets is $925 and $786 respectively.

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

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.

Yes, flying with a layover may cost you more time, but you can also save money on the route, with a 1 stop layover the cheapest option at $341 on average.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Philadelphia to Chicago, 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 Philadelphia to Chicago, you should book around 3 weeks before departure, which saves you about 28% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 9 weeks before departure.

Expert advice

Expert advice for your flight from Philadelphia to Chicago

 
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 seasonFebruary
Cheapest flight$96
Best time to beat the crowds but there is an average 17% increase in price.
Most popular time to fly and prices are also 17% lower on average.
Flight from Philadelphia to Chicago O'Hare Airport

When to book flights from Philadelphia to Chicago

Are your dates flexible? Find out the best times to travel from Philadelphia to Chicago 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 Philadelphia to Chicago

  • Where can I park at Philadelphia Airport?

    You can get long-term parking at the airport's Economy Lot F, which charges about $15-$22 per day. Suppose you need to park your rental car before heading to your departure terminal. In that case, you'll find the designated car-rental parking lots in the Multi-Modal Facility located next to the Economy Parking lot.

  • What can I do at Philadelphia Airport before the flight?

    As you wait for your flight departure at Philadelphia Airport, check out the on-site Art Exhibitions at various terminals in the airport. You can find art displays in Terminals A-East, B, C, and D with impressive displays that humanize the airport's surroundings.

  • Are there non-stop flights to Chicago from Philadelphia Airport?

    American and United are two major airlines that provide non-stop flights from Philadelphia to Chicago. However, most flights serving the route have one stop. Spirit Airlines, Frontier Airlines, Delta Air Lines, and Sun Country Airlines all have a single flight layover in Miramar, Denver, Atlanta, and Minneapolis, respectively.

  • Which is the fastest transport option to the city center from Chicago O'Hare Airport?

    Taking a taxi to Downtown Chicago is a quicker means of ground transportation from O'Hare Airport. Taxi operators are located outside the airport terminal, ready to take you to the city for about $50. The journey takes about 35min and might vary depending on the traffic. You can opt for the Blue Line L train that takes an average of 45min to get to the city center. Alternatively, you can use GO Airport Express that offers nonstop shared ride services, which may take a few more extra minutes, as you might have to wait for other passengers.

  • What is the cheapest flight from Philadelphia to Chicago?

    In the last 5 days, the lowest price for a flight from Philadelphia to Chicago was $96 for a one-way ticket and $201 for a round-trip.

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

    No

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

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

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

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

  • Which airline alliances offer flights from Philadelphia to Chicago?

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

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

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

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

    The two airlines most popular with KAYAK users for flights from Philadelphia to Chicago are Southwest and Delta. With an average price for the route of $312 and an overall rating of 7.9, Southwest is the most popular choice. Delta is also a great choice for the route, with an average price of $228 and an overall rating of 7.9.

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

    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 Philadelphia to Chicago.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Chicago from Philadelphia 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 Philadelphia to Chicago?

    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 Chicago with an airline and back to Philadelphia with another airline.

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

    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 Chicago from Philadelphia 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 Philadelphia to Chicago

  • Looking for a cheap flight? 25% of our users found flights on this route for $183 or less one-way and $339 or less round-trip.
  • An advantage of flying from Philadelphia International Airport (PHL) is that it lies about 7 miles from the downtown area and gives you hassle-free access to the city. Make sure to board your plane to Chicago at the right terminal for quick and convenient security screenings and take-offs. Delta Air Lines and Sun Country Airlines generally depart from Terminal D, while Spirit Airlines and Frontier Airlines depart from Terminal E.
  • Art enthusiasts will love touching down at Chicago O'Hare Airport (ORD). Before leaving the airport, check out The Sky's the Limit Sculpture in Terminal 1 or the Palimpsest, a beautiful tapestry construction made using shoelaces and nylon fishing nets, located in the airport's Multi-Modal Facility.
  • If you'd rather get accommodation at the airport instead of going to Downtown Chicago, we recommend booking a flight to Chicago O'Hare Airport. The Hilton Hotel lies right at the airport, opposite Terminals 1, 2, and 3. It offers convenient flight boarding and take-offs.
  • For nursing facilities, there are Mamava mobile pods, situated in Terminal A-West, Terminal F, and the B/C Connector. Alternatively, go to Minute Suites private room, between Terminals B and A-East, where you can nurse privately for free for the first 30min.
  • Traveling on a budget? You can get cheaper can easier access to Philadelphia Airport from the city center using the SEPTA Airport Line Regional Rail trains. These trains travel the route at 30min intervals. The fare will cost around $7-$8, and the journey takes about 30min.

Prefer to fly direct from Philadelphia to Chicago?

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

Direct departures

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

Direct returns

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

Reviews of the top 5 airlines serving from Philadelphia to Chicago

 
See real verified KAYAK customer reviews for airlines flying from Philadelphia to Chicago. 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 Philadelphia to Chicago? 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.
7.9
SouthwestOverall score based on 4235 reviews
7.5Entertainment
8.1Boarding
8.6Crew
7.0Food
8.0Comfort
Airline reviews

Flight was delayed over 3 hours. Planes were dirty. Staff indifferent. And they serve vegan pretzels as snacks.

2.0 MediocreMatthew, Jun 2026
CVG - MDW
Read more Southwest reviews

Flight was delayed over 3 hours. Planes were dirty. Staff indifferent. And they serve vegan pretzels as snacks.

It was great. The gate staff were very helpful in Portland when my son forgot his rolling bag and had to go back to get it just in time to make it on the plane. We really appreciate that. Great job!

Airline is not very senior friendly. Flights are late, forcing us to run to the connecting flight. Food is awful. Wish they would go back to pretzels and peanuts. During flight, pressurization isn’t quite right and all of our ears get plugged. Everything is nickel and dime, charging for boarding, seat selection and legroom. While a screen at the desk in the gate area says check your roll on bag now for free due to space limitation, the employee at the desk will not check the bag without a $100 fee. Insane.

Kayak could’ve posted the correct gate number. Almost missed my flight.

Slow boarding, limited food and drink portions. Bad delays and turbulence

there were two flight attendants that were up front...that were the best! They get KUDOs for making my trip only fantastic. Tell them Jeff said that!

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.

Flight coming out of Buffalo was delayed, so we had to be rescheduled on another flight from Baltimore to Phoenix which means we had a long layover and got home 3.5 hours late. Shuttle to parking stopped at 10pm, so we had to pay for an Uber to the parking lot and got charged an extra day of parking since it was after midnight. Not the best experience. Long day!

Was fine, delayed and feels like southwest is always late

I don't know why flying out of Sarasota requires two plane changes.

Flight delayed four separate times. I’m now one hour hours late to landing.

worst flight ever from Delta, it got delayed and kept on delaying..

Should never have had to go to Detroit from Orlando back to Tennessee!

Got rerouted from a straight flight from Orlando to Atlanta to Knoxville to a flight from Orlando to Detroit to Knoxville! Seriously!! Flight delay out of Detroit! Long day for what should have been a pretty easy travel day!

Two delays on two separate planes with parts they could not easily find and replace.

Checkin was good, fllight ws good. Onlly complaint is lack of foot on 6 hour flight from Seattle to Boston. Snacks were flimsy - chips and cookies. could have offered something more substantial for such a long flight. I know you can buy food in airport but for the price you pay for a ticket, they should step up for the passengers.

Only beverages were offered to first class and I thought the flight attendant could have also served the Delta Comfort as well instead of sitting down and staring at her phone and walking past all of us to the back of the plane to charge her phone more. There was a complete lack of turbulence and was safe enough for flights attendant to walk around in the front of the plane, collect trash and serve a few people water and turn off the seat belt light. Also didn’t enforce people putting their seats into the upright position and allowed two passengers to remain reclined during landing. They seemed out to lunch completely. Usually my experience on Delta is much better.

Long story short, it was one of the better flight experiences I've had in some time when compared with other airlines.

Flight was great! This flight from Atlanta was even better than when I paid for Comfort from SNA to Atlanta.

Connection flights should be spaced out farther because too close I missed my connection.

Over 5 hour delay with minimal updates or ability to standby for alternative flights. During boarding and 1 hr+ wait for takeoff, seats were drenched w water from air conditioning condensation and always leftover crumbs on carpet and seats

Boarded early, left early, arrived 40 mins early! A win win for me!

These airplanes should be illegal. The seats are two tight, it is a safety issue. Wheelchair support was ridiculously slow. We almost missed our flight.

This flight is a quick way to get to Chicago, but a bit expensive.

O’hsre taxi and deboarding took 40 minutes. Needed 20 minutes extra time between connecting flights to avoid running through terminal.

Standard flight with a drinks and a snack- overall very quick flight. The flight attendants were very strict, bordered on rude.

Delayed - weather wasn't bad at either end. Also sat on tarmac in ORD.

boarded early to only find out that flight would sit at gate for 45 min to an hour. Landed in chicago and sat on runway for over an hour before got to gate. Total delay was extensive for a 45 min flight door to door.

The flight was significantly delayed. The inbound flight from EWR was delayed departing because of mechanical problems. My original departure from CLT was 5:28 pm but due to the delay of the inbound flight, after arrival, deplaning, cleaning, boarding, we did not push back from the gate until 9:00 pm. Once in the air, the flight was smooth and what was originally supposed to be an arrival in ORD at 7:30 pm local time turned out to be 9:35 pm.

The flight I was supposed to be on was supposed to take off at 1:50 from State College. It was delayed over and over and over again until somehow I had to rebook on a flight that was supposed to have left State College at 8 am that morning but didn't end up taking off until almost 6 pm. Not only was this completely unacceptable, the "token from United" was a 15 dollar meal voucher that has to be used by today. I would personally like some miles added to my account for this inconvenience. I was in transit for 8 hours from the time I arrive at State College Aiport to when I got home. I was supposed to be home at 3 pm and I returned at 8 pm. Unacceptable. I have not been on an on Time united flight in nearly 5 years.

Fine. Nothing to write home about. The plane left on time, and arrived on time.

Flight left early and arrived 30 MINUTES early at the destination. Smooth trip.

Flight was 3 hours delayed. They gave our plan to two other routes. Need to knock that off.

The flight was on time and the landing was very smooth. The crew and flight attendants were all very friendly and professional.

Plane was super cold. No entertainment unless you were with mileage program Getting off the plane was super slow

I appreciate that I finally got the seat I paid extra for this time. Thank you

Half of the TSA checkpoints at PHL are closed. Also, there is no standby for first class passengers. You can only standby for coach. Very dated policy and inconsistent with peers.

It would have been nice if American tried to care.

Delayed initially because they couldn’t print the flight details. Poor instruction on delay. When I got on the plane the flight attendant argued with me about whether my carry on would fit (it did, although she didn’t acknowledge that). No greeting (other than arguing with me) getting on or off the plane.

Beverage service was not good. Also just one service in 5 hr 30 min flight. No ask fir water ir anything beside one time beverage service.

There weren't enough employees at check in took awhile to get bags checked. There wasn't a wheel chair for me, I was sent to someone who turns out to work for a different airline, if My flight hadn't been delayed I probably would have missed my flight as it was, by the time I arrived at my gate, they started boarding in about 15 minutes. I don't know who took me to my gate, definitely was not the normal people who take passengers to the gate. I'm guessing she may have been in a management position. I wish I knew her name, she went beyond to help me. With that said everyone was kind, and were doing the best they could. So, I choose to say it was an Adventure, stressful start, but good. In the end went well. The situation was not only difficult for passengers but the employee's.

The staff at the check in counter was so rude. Made you feel Incompetent

Frontier scheduled a 40 minute connection in DEN. What they failed to mention was that they “close the doors” 20 mins prior to departure, which means you only have 20 mins. Not enough time. Possibly against DOT regulations. Filing complaint.

Flight was scheduled at 9:40pm. Got delayed to 10 am, the next day. crazy

The bag check, flight check-in, and onboard experience convinced my wife and me that we will actively go out of our way to avoid flying Frontier Airlines in the future. At bag check, we were informed that check-in could only be completed via the Frontier mobile app. Unfortunately, the app was extremely frustrating—sending us through repetitive, confusing loops that repeatedly forced us to decline add-on services with nearly every click. While most airline apps upsell, this one felt intentionally exhausting. As the process dragged on, we became genuinely concerned that my phone battery would die before check-in could be completed. We approached the bag check staff—who were standing together talking—and explained both our frustration and our predicament. They laughed. Later, my wife described the interaction as “gaslighting,” which felt accurate. We were then informed it would cost $25 per person simply to have our boarding passes printed. From that point forward, the tone of the experience was consistently hostile. The bag check employees were condescending and combative, behaving more like bullies than customer service staff. Unfortunately, that same attitude continued onboard. One flight attendant argued with me when I attempted to stow my backpack in the overhead bin. I explained that we had each paid $75 to check our bags specifically so we would not need to use carry-on space and could have adequate legroom. She demanded to see my ticket, pointed out that it said “no carry-on”—which I acknowledged—and I reiterated that this was precisely why we paid to check our bags. Her response was, “I don’t make the rules.” She then walked away, but not before asking if I “truly wanted to fly back to Chicago today?”—an unnecessary and unmistakable threat. It is also worth noting that despite booking our tickets together in the same transaction, we were not seated together. Upon our return to Chicago—where we could once again sit together—we compared onboard experiences. We both remarked on how unhappy the flight attendants appeared and how each of us was separately asked whether we would like to purchase a beverage. We declined. At no point was water mentioned as an option, leaving us with the clear impression that even water came at a cost—or that complimentary water, if available at all, was deliberately left unmentioned. Overall, the experience was shocking and deeply disappointing, but it was also a profound learning experience—one we will not forget and will not repeat. -Steve

Plane was hot and miserable and the crew was rude!

12 hour delay required getting on and off plane 3 times - would have at least liked to have been offered a snack or drink

They didn’t offer a water, even after I asked

They switched our terminal 3 times and we were delayed for four plus hours!!!

It was an early flight and most people napped/slept and the crew let us which was nice.

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

Other airlines flying from Philadelphia to Chicago

Flights from the other most popular airlines that fly from Philadelphia to Chicago 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 Philadelphia to Chicago

Transportation modeAverage priceAverage duration
Flights$7352h 00m
Trains$26527h 10m