PHL - SFO

$151 Find Cheap Flights from Philadelphia to San Francisco

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 San Francisco departing on 6/8. 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.
1 adult
1 adult, Economy, 0 bags

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

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Philadelphia to San Francisco.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Philadelphia to San Francisco.
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Everything you should know

Cheapest round-trip
$289
Typical prices: $289-$495
Frontier
Fri 4/17Sat 4/25
PHL - SFO • 1 stop
Cheapest non-stop
$309
Typical prices: $297-$502
United Airlines
Wed 4/22Mon 4/27
PHL - SFO • Non-stop
Advice from real travelers
AI-powered summary based on content written by travel experts. AI can make mistakes.
Choose Economy Plus on United for extra legroom.
Use BART from SFO for affordable city access.
Expert advice
Expert advice
Expert advice
Expert advice
Top airlines
Frontier
Cheapest • from $289 (round-trip)
Southwest
Best reviews • 8.0 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Every day
You can fly direct with American Airlines and United Airlines. Average duration is 6h 25m
Direct flights
Direct flights
+1
+1
Direct flights
Direct flights
+1
Top layover airports
Fort Lauderdale (FLL)
Cheapest • Avg $290 (round-trip)
Detroit (DTW)
Shortest trip • 7h 51m (one-way)
Insights
Insights
Insights
Insights
When to book
5 weeks
in advance
Our data shows that travelers who book at least 5 weeks in advance save around 28% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
September
Cheapest • 17% price drop
July
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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We hope you love your trip to San Francisco!
Flight Deals
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Flight Deals

Cheap Flights from Philadelphia to San Francisco (PHL-SFO)

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

Fri, Apr 17 - Sat, Apr 25
Frontier Logo
8:36 pm - 11:25 pm
PHL
-
SFO
29h 49m
1 stop
Frontier Logo
6:00 am - 5:13 am
SFO
-
PHL
20h 13m
2 stops
$289Frontier
Thu, May 21 - Mon, Jun 1
Frontier Logo
2:21 pm - 11:04 pm
PHL
-
SFO
11h 43m
1 stop
Frontier Logo
10:38 pm - 11:50 am
SFO
-
PHL
10h 12m
1 stop
$290Frontier
Sat, Apr 11 - Mon, Apr 13
Frontier Logo
8:25 pm - 12:28 am
PHL
-
SFO
31h 03m
1 stop
Frontier Logo
10:03 pm - 12:52 pm
SFO
-
PHL
11h 49m
1 stop
$291Frontier
Mon, Apr 13 - Mon, Apr 20
Frontier Logo
4:52 pm - 1:52 pm
PHL
-
SFO
24h 00m
2 stops
Frontier Logo
10:38 pm - 1:18 pm
SFO
-
PHL
11h 40m
1 stop
$292Frontier
Wed, Apr 15 - Tue, Apr 21
Multiple Airlines Logo
8:00 am - 1:52 pm
PHL
-
SFO
8h 52m
1 stop
Multiple Airlines Logo
8:45 pm - 5:38 pm
SFO
-
PHL
17h 53m
1 stop
$293Multiple Airlines
Mon, Mar 30 - Tue, Apr 7
Frontier Logo
8:20 am - 6:37 pm
PHL
-
SFO
37h 17m
2 stops
Frontier Logo
6:00 am - 5:31 am
SFO
-
PHL
20h 31m
1 stop
$294Frontier
Thu, Apr 9 - Tue, Apr 14
Frontier Logo
5:01 am - 7:19 pm
PHL
-
SFO
17h 18m
2 stops
Frontier Logo
6:00 am - 5:34 am
SFO
-
PHL
20h 34m
1 stop
$295Frontier
Wed, Jun 3 - Tue, Jun 16
Frontier Logo
4:00 pm - 10:52 pm
PHL
-
SFO
9h 52m
1 stop
Frontier Logo
6:00 am - 5:37 am
SFO
-
PHL
20h 37m
1 stop
$296Frontier
Sat, Apr 4 - Tue, Apr 7
Frontier Logo
8:36 pm - 12:28 am
PHL
-
SFO
30h 52m
1 stop
Frontier Logo
6:00 am - 5:31 am
SFO
-
PHL
20h 31m
1 stop
$297Frontier
Thu, Apr 30 - Sun, May 3
Frontier Logo
5:30 pm - 12:22 pm
PHL
-
SFO
21h 52m
2 stops
Frontier Logo
10:38 pm - 8:10 am
SFO
-
PHL
30h 32m
1 stop
$298Frontier
Booking Insights

KAYAK's insights & trends for Philadelphia to San Francisco flights

Get data-powered insights and trends into flights from Philadelphia to San Francisco 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 San Francisco?

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 San Francisco departing in April.

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

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

When flying from Philadelphia to San Francisco, you should consider leaving on a Wednesday and avoid Mondays if you are looking for the best rates. For your return to Philadelphia, you’ll find the best rates on Wednesdays and the most expensive ones on Mondays.

What is the cheapest month to fly from Philadelphia to San Francisco?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Philadelphia to San Francisco, 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 San Francisco is September, where tickets cost $331 (return) on average. On the other hand, the most expensive months are November and June, where the average cost of round-trip tickets is $449 and $419 respectively.

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

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 San Francisco, 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 San Francisco, you should book around 5 weeks before departure, which saves you about 28% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 23 weeks before departure.

Expert advice

Expert advice for your flight from Philadelphia to San Francisco

 
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
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.

Stefanie Waldek

Stefanie Waldek

Expert on United Airlines

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.

Blane Bachelor

Blane Bachelor

Expert on SFO

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 seasonJanuary
Cheapest flight$151
Best time to beat the crowds but there is an average 2% increase in price.
Most popular time to fly and prices are also 5% lower on average.
Flight from Philadelphia to San Francisco

When to book flights from Philadelphia to San Francisco

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

  • Are there any shops in Philadelphia International Airport?

    Duty Free by DFASS can be found in Terminal A of Philadelphia International Airport and sells travel essentials, such as magazines, snacks, headphones, and neck pillows. Shine Collectibles is in Terminal C and offers a variety of sports clothing and accessories, while Pennsylvania Market is in Terminal E and has food products from the region.

  • Does Philadelphia International Airport have any places to let animals stretch their legs?

    There is an indoor Pet Port that is placed inside of each terminal in Philadelphia International Airport, as well as outdoor relief zones that are near all Arrivals areas. They are securely fenced in, contain grass and waste disposal bags, and can be used by both pets and service animals.

  • What amenities does San Francisco International Airport offer members of the military?

    In addition to having a USO Center that is open 24h a day, San Francisco International Airport has a limited number of overnight facilities that can be used by members of the military. Most shops and restaurants also offer discounts for both active members and veterans, but an official ID card is required.

  • Do any hotels have a free shuttle service to San Francisco International Airport?

    There are several hotels that offer free shuttles to and from San Francisco International Airport, with most of them picking up and dropping off from the Hotel Courtesy Shuttle zones in the center island in front of all Arrivals terminals. The Aloft Hotel is a chic choice, while the Comfort Suites is a more affordable option. For a hotel that offers long-term lodging options, book a room at the Comfort Suites.

  • What is the best way to get out of San Francisco International Airport )SFO)?

    BART trains are the best transport option for those connecting from SFO to different destinations within Bay Area, including Downtown San Francisco. It takes about 30 minutes to arrive in Downtown San Francisco from the airport.

  • How can I catch up with the earliest flight from Philadelphia to San Francisco?

    Enjoy even more convenience if you want to catch the earliest flight to San Francisco from Philadelphia by spending the night at Philadelphia Airport Marriott. From the hotel, you can easily connect to Terminal B of the airport via Skybridge.

  • Which airlines should I book when flying from Philadelphia to San Francisco with kids?

    Booking American Airlines or United Airlines guarantees you and your kid(s) enhanced comfort throughout the entire journey, thanks to the spacious seats and extra legroom in all cabins. Additionally, American Airlines provides priority boarding for those with young ones.

  • How convenient is landing at San Francisco International Airport late at night?

    If your plane from PHL or TTN touches the ground at SFO late at night, you can spend the remaining hours of the night at one of the nap rooms in Terminals 2 and 3 of the airport. Optionally, you can also connect to a nearby hotel like San Francisco Airport Marriott Waterfront. The hotel offers 24-hour operational free airport shuttles, making it easier for you to connect to the airport.

  • Which nearby cities can I get to from San Francisco Airport?

    Apart from serving as the gateway to San Francisco for international travelers, SFO also serves a number of nearby cities. Some of the cities you can get to from SFO include Mountain View, San Jose, Santa Clara, and Palo Alto. Rental cars provide a more flexible way of connecting to these cities from SFO.

  • How do I find rental cars when landing at San Francisco International Airport?

    There is a rental car center located inside the airport on the Fourth Floor, housing a number of popular rental car companies, including Enterprise, Avis, Budget, and Dollar. Therefore, renting a car after deplaning at SFO is a hassle-free process.

  • What is the cheapest flight from Philadelphia to San Francisco?

    In the last 3 days, the lowest price for a flight from Philadelphia to San Francisco was $151 for a one-way ticket and $289 for a round-trip.

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

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

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

    Philadelphia and San Francisco are both served by 1 main airport. You will leave Philadelphia from Philadelphia and will be arriving at San Francisco.

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

    JetBlue, American Airlines, Alaska Airlines, Hawaiian Airlines, and Asiana Airlines offer inflight Wi-Fi service on the Philadelphia to San Francisco flight route.

  • Which aircraft models fly most regularly from Philadelphia to San Francisco?

    The Boeing 737 MAX 8 is the aircraft model that flies most regularly on the Philadelphia to San Francisco flight route.

  • Which airline alliances offer flights from Philadelphia to San Francisco?

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

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

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

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

    The two airlines most popular with KAYAK users for flights from Philadelphia to San Francisco are Southwest and Delta. With an average price for the route of $417 and an overall rating of 8.0, Southwest is the most popular choice. Delta is also a great choice for the route, with an average price of $359 and an overall rating of 7.9.

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

    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 San Francisco.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to San Francisco 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 San Francisco?

    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 San Francisco with an airline and back to Philadelphia with another airline. Booking your flights between Philadelphia and SFO can sometimes prove cheaper using this method.

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

    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 San Francisco 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 San Francisco

  • Looking for a cheap flight? 25% of our users found flights on this route for $273 or less one-way and $371 or less round-trip.
  • To travel as affordably as possible, look for flights from Philadelphia to San Francisco with layovers, such as through Sun Country or United Airlines. If you would rather have a nonstop flight, American and Alaska Airlines offer many choices.
  • If you need to print out some last-minute documents or work on your to-do list, pay a visit to the UPS Store in the Terminal A/B walkway of Philadelphia International Airport (PHL). In addition to having several workstations, this store also provides copying services, sells shipping supplies, and has a notary.
  • Have some extra time before your flight from Philadelphia to San Francisco leaves? Philadelphia International Airport has a virtual library that allows travelers to download podcasts, books, and magazines for free. There is also an Observation Deck in each terminal that provides direct views of the airport’s tarmacs.
  • For travelers who would like some help carrying all of their suitcases, make a reservation with an Airport Butler through San Francisco International Airport’s (SFO) official website. This service will provide you with an employee to collect your luggage, arrange private transportation, and walk you to your car.
  • If you’re traveling to San Francisco with your little ones, go to the Cloud of Goods store in the main terminal of San Francisco International Airport. In this shop, you can rent important baby equipment, such as car seats and strollers.
  • Flights from Philadelphia to San Francisco depart from either Trenton-Mercer Airport (TTN) or Philadelphia International Airport (PHL). The benefit of departing from PHL is that you have access to several airlines and can get a flight at different times of the day, subject to your schedule. The number of daily flights to San Francisco departing from PHL is higher than TTN. On the other hand, departing from TTN gives you the benefit of enjoying shorter queues at various security checkpoints.
  • Buses provide a convenient and affordable way of getting to Philadelphia International Airport from downtown Philadelphia. Three bus lines, Route 37, Route 108, and Route 115, provide direct connections to the airport terminals from the downtown area. Taxis are the alternative means of transport, especially for those rushing against time.
  • San Francisco International Airport (SFO) is the main destination airport for flights from Philadelphia. However, a considerable number of flights arrive at Oakland International Airport (OAK) and San Jose Mineta International Airport (SJE). It is easier to connect to the San Francisco city center from SFO due to the availability of more transport options. Those landing at OAK or SJE enjoys shorter queues at the baggage claim areas.

Prefer to fly direct from Philadelphia to San Francisco?

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

Direct departures

Philadelphia to San Francisco

Monday

American Airlines,United Airlines

American Airlines,United Airlines

Tuesday

American Airlines,United Airlines

American Airlines,United Airlines

Wednesday

American Airlines,United Airlines

American Airlines,United Airlines

Thursday

American Airlines,United Airlines

American Airlines,United Airlines

Friday

American Airlines,United Airlines

American Airlines,United Airlines

Saturday

American Airlines,United Airlines

American Airlines,United Airlines

Sunday

American Airlines,United Airlines

American Airlines,United Airlines

See more direct flights

Direct returns

San Francisco to Philadelphia

Monday

American Airlines,United Airlines

American Airlines,United Airlines

Tuesday

American Airlines,United Airlines

American Airlines,United Airlines

Wednesday

American Airlines,United Airlines

American Airlines,United Airlines

Thursday

American Airlines,United Airlines

American Airlines,United Airlines

Friday

American Airlines,United Airlines

American Airlines,United Airlines

Saturday

American Airlines,United Airlines

American Airlines,United Airlines

Sunday

American Airlines,United Airlines

American Airlines,United Airlines

See more direct flights

Reviews of the top 5 airlines serving from Philadelphia to San Francisco

 
See real verified KAYAK customer reviews for airlines flying from Philadelphia to San Francisco. 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 San Francisco? 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 4317 reviews
8.1Boarding
8.0Comfort
8.6Crew
7.0Food
7.5Entertainment
Airline reviews

The problem with the seat assignments is that there were a lot of rows in the front that were empty but my row at the back was full. Just not so pleasant.

8.0 ExcellentTobin, Mar 2026
SJC - BUR
Read more Southwest reviews

The problem with the seat assignments is that there were a lot of rows in the front that were empty but my row at the back was full. Just not so pleasant.

No food or entertainment, just a quick 40 minute flight. A little bumpy due to Santa Ana winds but pilot has no control over that. Good flight and landing!

Good but I prefer choose your own seat. With the new assigned seats they should board from the back I see no advantage to this new boarding. Just like every other airline

Mediocre. Boarding is now unpleasant. The employees, once friendly and nice, are now regularly speaking sternly to passengers, badgering them to do things right so they can take off on time and gate check bags because they don't have enough overhead bin space. The pretzel snack was crushed flat and broken into even smaller pieces, which happens frequently lately. Drink service was suspended before they reached my row.

The charges were ridiculous for an hour flight and the turbulence was very scary.

3 hour delay. Had to change plans and was still delayed.

The flight crew was extremely rude and especially not helpful when our flight was delayed.

The boarding and seat assignment system no longer works for me, but I know it is being replaced. Otherwise, I am good with the overall experience.

The lead steward kept singing about "San Francisco" and hotel California---more annoying than humorous....needs work. Flight was smooth and on time.

Still a fan of open seating. Flight was on schedule and arrived on time. The 737 MAX is very comfortable.

Left a few minutes early. Got in 15 minutes early. Very attentive service on board. Very organized boarding.

There’s not much to say about a one hour flight. This is a connection from LA to RNO that I missed the previous night due to a mechanical check delay on my originating flight from JFK to LAX. The short flight itself was fine. Instructions from the pilot and crew were per usual. The coffee was barely lukewarm, which possibly was purposeful so we would down it quickly. Bags were already on carousel upon reaching baggage claim, which was excellent.

Delta continues to set the benchmark for traveler-friendly service with minimal disruption and clear communication within the mainland US (coast to coast). I am consistently pleased to be a Delta customer, and this experience once again met my expectations. There was a brief delay departing from MIA due to a technical issue that required the aircraft to return to the gate. However, the situation was handled professionally and transparently. Fortunately, my planned layover allowed ample buffer time, so the adjustment caused no stress. Overall, another smooth and reassuring experience.

Awful - both legs. The check in was awful, getting on the plane required walking down a spiral staircase (dangerous), then taking a bus about 5 miles out from the terminal. The seat was broken (I was in business), there was no internet during the flight (both legs). The aircraft was very old. I saw rust in some place, tape holding things up in the bathroom. This was an unacceptable experience for such a long haul flight.

Awesome! On time flight, early arrival, and a complimentary upgrade!

Was forced to check in my small carry on, even though I informed the crew it has very fragile items inside

They double booked seats, the gate staff changed my ticket as I was boarding she went over to the computer and changed it without telling me. She messed up an entire three row section for me and others. Other travelers were outraged but the gate staff were so rude, so condescending saying it wasn't their problem to solve. I would rate this a zero if I could. Will not fly Delta again I'll stick with United and American.

I usually get upgraded so my experience is usually amazing. I did not get upgraded this time - which was fine - but the wifi had issues, the monitors were going in & out, & (though not Delta's fault) one of the gentlemen next to me desperately needed a shower.

I really liked the legroom. I am 6’4”.a at For some reason our seats were not together and using the app to fix it didn’t work. Passengers were nice enough to move for us but you should absolutely ensure a parent sits with their child.

The gate attendants and the crew were terrible. Because of high winds, they needed to carry more fuel, so they had to get volunteers to take the next flight at 6 am the next day. They did a terrible job of it - our flight ended up taking off just under 3 hours of the scheduled time. I hope to never fly Delta again.

Overall we had a good experience during our flight from San Francisco to Houston.

the whole trip was smooth, and as comfortable as flying is these days. flight crew was friendly and very courteous and helpful.

First class ticket gets you a choice of chips or nuts. . Just like economy Southwest. Also no screen in the seats. This is first class???!

Flight arrived 30 min early and bag was waiting at the baggage pickup. United Club HNL was one of the nicest in the system

Yet another flight in which beverage and snack service was skipped. Other that that, firmly mediocre. Landed early, to gate late due to congestion at the gates. Airline's fault or airports fault: unknown.

Teeny tiny bathrooms, crew was not realistic about when we'd arrive.

Flight was late - I was downgraded from first class to coach

United needs to step up their game. Delayed flight leaving Seattle, San Francisco. Older aircraft, not very comfortable.

7 hours delayed due to operational issues on United’s end. Basically laziness.

The internet service I paid for didn’t work at all and the flight crew was not very friendly.

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.

They are always late and seats was also not having working charger

This flight captain and crew were amazing, started ahead of time of departure and reached 30 mins before arrival time. Amazing!

Long delays, lack of information about the status of the flight. The flight was delayed 4 times.

Everything about the flight was lovely. My only suggestion would be to offer a few more options of tv series from Apple TV or HBO.

Delays to take off and to leave the plane after landing added a lot of time to this flight.

The Phildalphia to Allentown portion was a BUS, not a plane. All was as expected.

Excellent - explanations were clear staff was nice and flight was comfortable

Great. Quick and quiet and east. The breakfast choices were a welcome surprise!

Our flight was canceled. I will never use Kayak nor Frontier for travel again. The entire experience was a headache.

First of all we hade waited 3 hours in the airplane waiting to leave. Second the return schedule was changed and it messed up my entire vaction. I won't buy never again another flight and recommend to nobody traveling with them.

I am writing to express my disappointment with my recent Frontier Airlines flight. I was charged $99 at the gate because my bag was said to be too large, yet once onboard there was no available overhead bin space, and I was required to place the bag under the seat in front of me anyway. This made the charge feel unnecessary and unfair. Additionally, before the flight even took off, I was asked to move from the seat I paid for into a middle seat so another passenger and her cat could have my seat to themselves. I was not offered compensation or an explanation for being moved from a paid seat. Between the unexpected bag fee and being forced to give up my seat, this experience fell well below acceptable customer service standards. I would appreciate a review of this situation and appropriate compensation.

Terrible. Flight cancelled with no reasoning and no flights to rebook. Employees were useless and did nothing to help. Did not even know where to retrieve luggage from the cancelled flight. Flyers beware.

Terrible. The canceled my entire flight when I requested a refund for a trip frontier canceled trip one way.

i was unable to check in the flight. refund requested

I think Frontier was very good at communication. Their app worked very well. Loading was great and the flight was nice and easy.

Great for the price. No wifi or entertainment, but gate agents and crew were fantastic and we boarded quickly and left on time.

sluggish boarding and arrival procedures, fake nice flight attendants, and lots of delays.

Decent clean onboard experience. Okay discount airline experience. Unfortunately, any customer service interactions are difficult and unhelpful. There is no service. Also, a premium seat only gets you premium boarding if you line up first. Once they start general boarding you must go to the back of the line. Not very premium

Everything you need to know for your flight from Philadelphia to San Francisco

Information on your arrival and departure airports