PHL - SAN

$58 Find Cheap Flights from Philadelphia to San Diego

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 Diego departing on 8/20. 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

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

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Philadelphia to San Diego, 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 San Diego, as well as popular online travel agencies
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Flights Deals

Cheap Flights from Philadelphia to San Diego (PHL-SAN)

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

Fri, Sep 5 - Sun, Sep 7
Spirit Airlines Logo
5:21 pm - 10:13 pmPHL-SAN
7h 52m1 stop
Spirit Airlines Logo
7:47 pm - 6:10 amSAN-PHL
7h 23m1 stop
$119Spirit Airlines
Find Deal
Sat, Aug 23 - Sat, Aug 30
Spirit Airlines Logo
9:00 am - 5:56 pmPHL-SAN
11h 56m1 stop
Spirit Airlines Logo
1:17 pm - 11:59 pmSAN-PHL
7h 42m1 stop
$142Spirit Airlines
Find Deal
Sun, Sep 14 - Wed, Sep 17
Spirit Airlines Logo
5:21 pm - 11:24 pmPHL-SAN
9h 03m1 stop
Spirit Airlines Logo
6:15 am - 8:51 pmSAN-PHL
11h 36m1 stop
$143Spirit Airlines
Find Deal
Thu, Sep 4 - Sun, Sep 7
Spirit Airlines Logo
5:21 pm - 11:24 pmPHL-SAN
9h 03m1 stop
Spirit Airlines Logo
7:47 pm - 6:10 amSAN-PHL
7h 23m1 stop
$145Spirit Airlines
Find Deal
Thu, Sep 4 - Sun, Sep 7
Spirit Airlines Logo
5:21 pm - 11:24 pmPHL-SAN
9h 03m1 stop
Spirit Airlines Logo
7:47 pm - 6:10 amSAN-PHL
7h 23m1 stop
$155Spirit Airlines
Find Deal
Tue, Aug 12 - Fri, Aug 15
Frontier Logo
6:15 am - 11:10 amPHL-SAN
7h 55m1 stop
Frontier Logo
7:05 pm - 5:49 amSAN-PHL
7h 44m1 stop
$195Frontier
Find Deal
Sun, Jul 27 - Sat, Aug 2
Frontier Logo
7:19 am - 12:04 pmPHL-SAN
7h 45m1 stop
Frontier Logo
7:06 pm - 5:49 amSAN-PHL
7h 43m1 stop
$201Frontier
Find Deal
Sun, Aug 10 - Sun, Aug 17
Frontier Logo
7:19 am - 12:08 pmPHL-SAN
7h 49m1 stop
Frontier Logo
7:04 pm - 5:49 amSAN-PHL
7h 45m1 stop
$205Frontier
Find Deal
Wed, Jul 30 - Sat, Aug 2
Frontier Logo
6:15 am - 11:10 amPHL-SAN
7h 55m1 stop
Frontier Logo
7:06 pm - 5:49 amSAN-PHL
7h 43m1 stop
$211Frontier
Find Deal
Thu, Aug 14 - Tue, Aug 19
 Logo
7:19 am - 12:08 pmPHL-SAN
7h 49m1 stop
 Logo
1:17 pm - 11:59 pmSAN-PHL
7h 42m1 stop
Expert advice

Expert advice for your flight from Philadelphia to San Diego

 
Snippets provided in this section are AI-generated based on a summarization of KAYAK-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Airports
PHL

PHL offers public transportation via SEPTA's Airport Regional Rail Line, connecting to downtown in about 30 minutes, a cost-effective option for travelers.

Read more about PHLby Harriet Baskas
SAN

The Route 992 bus connects SAN to Downtown San Diego every 15 minutes, offering a budget-friendly 15-minute ride to the city center.

Read more about SANby Brandon Schultz
Our travel experts
Brandon Schultz

Brandon Schultz

Expert on SAN

Brandon Schultz

Brandon Schultz

Brandon Schultz is an award-winning food and travel writer based in New York City. His work has appeared in Forbes, AAA, Thrillist, Travel + Leisure, and The Daily Meal, among many others, and he is the author of 6 books, including 3 cookbooks.

Read more
Harriet Baskas

Harriet Baskas

Expert on PHL

Harriet Baskas

Harriet Baskas

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.

Read more
Useful Info

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

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

Find cheap flights to San Diego
Find cheap flights to San Diego

Planning a trip from Philadelphia to San Diego? KAYAK’s data-powered insights will help you find cheap flights. Learn the best time to fly, how early to book your ticket, and other tips to secure great prices.

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

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

When flying from Philadelphia to San Diego, you should consider leaving on a Tuesday and avoid Sundays 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 Sundays.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Philadelphia to San Diego, 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 Diego is November, where tickets cost $394 (return) on average. On the other hand, the most expensive months are December and June, where the average cost of round-trip tickets is $499 and $440 respectively.

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

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 $1,138 on average.

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

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 Diego, 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 Diego, you should book around 5 weeks before departure. For the absolute cheapest price, our data suggests you should book 12 weeks before departure.

Good to know

Low seasonFebruary
High seasonJuly
Cheapest flight$58
Best time to beat the crowds with an average 1% drop in price.
Most popular time to fly and prices are also 0% lower on average.
Flight from Philadelphia to San Diego

When to book flights from Philadelphia to San Diego

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

  • What types of flights are offered between Philadelphia and San Diego?

    To travel from Philadelphia to San Diego, it’s possible to find direct flights, with these trips often being serviced by American Airlines. There are many journeys that require travelers to make a connection as well, and this may occur in cities like Dallas or Phoenix. Connecting flights are often operated by Alaska Airlines or Delta.

  • How can I travel from downtown Philadelphia to Philadelphia International Airport?

    A popular way of traveling from downtown Philadelphia to Philadelphia International Airport is by driving, as it only takes between 15 and 20min in total. Public transportation is available for this trip as well, such as the Airport Line bus. If you take the local bus, expect the journey to last around 20 to 25min.

  • Does San Diego International Airport have its own rental car center?

    There is an off-site rental car facility near San Diego International Airport, which can be reached by a free shuttle bus. At this facility, you will find offices for a few different rental agencies, including Budget, Enterprise, and National. Each company keeps their fleet at the center.

  • What transportation options are available for going from San Diego International Airport to the city center?

    To go from San Diego International Airport to the city center as quickly as possible, it’s usually best to drive, as the journey will only take you around 10 to 15min as long as there is no additional traffic. There is also public transportation that can be used to go between these two locations, such as public bus line 992. If you choose to take the bus, you’ll arrive at the city center in around 20min.

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

    In the last 3 days, the lowest price for a flight from Philadelphia to San Diego was $58 for a one-way ticket and $119 for a round-trip.

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

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

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

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

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

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

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

    The Airbus A321-100/200 is the aircraft model that flies most regularly on the Philadelphia to San Diego flight route.

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

    oneworld is the only airline alliance operating flights between Philadelphia and San Diego.

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

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

  • Which is the best airline for flights from Philadelphia to San Diego, Delta or Spirit Airlines?

    The two airlines most popular with KAYAK users for flights from Philadelphia to San Diego are Delta and Spirit Airlines. With an average price for the route of $346 and an overall rating of 8.0, Delta is the most popular choice. Spirit Airlines is also a great choice for the route, with an average price of $239 and an overall rating of 6.3.

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

    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 Diego.

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

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

    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 Diego with an airline and back to Philadelphia with another airline. Booking your flights between Philadelphia and SAN 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 Diego?

    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 Diego 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 Diego

  • Looking for a cheap flight? 25% of our users found flights on this route for $227 or less one-way and $382 or less round-trip.
  • Philadelphia International Airport (PHL) is a major hub for both Frontier Airlines and American Airlines. Due to this, you will find many flights that depart from this airport are operated by one of these companies.
  • If you’ll be flying with a small child that is still nursing, keep your eyes open for one of the lactation rooms in San Diego International Airport (SAN). These rooms are located in Terminals 1 and 2 and contain comfortable seating, a highchair, a small washing station, and outlets.
  • Those that have an early flight departing from Philadelphia International Airport may be interested in staying at a hotel directly at the airport in order to maximize their sleeping time. Minute Suites can be found in Terminals A and B and rent rooms either per hour or overnight, while the Philadelphia Airport Marriott is in Terminal B.
  • Travelers that are hungry or thirsty once they have arrived at San Diego International Airport can choose from a few quick dining options in each terminal. Both Ryan Bro’s Coffee in Terminal 1 and Einstein Bros. Bagels in Terminal 2 are open 24h a day and have a variety of to-go options.
  • When traveling with a furry friend, you’ll want to make sure that you find one of the “Pet Ports” in Philadelphia International Airport. There is at least one of these areas in each terminal and they contain fake grass and trash cans for pet owners to take advantage of.

Prefer to fly direct from Philadelphia to San Diego?

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

Direct departures

Philadelphia to San Diego

Monday

American Airlines, British Airways, Iberia, +1 more

American Airlines, British Airways, +2 more

Tuesday

American Airlines, British Airways, Iberia, +1 more

American Airlines, British Airways, +2 more

Wednesday

American Airlines, British Airways, Iberia, +1 more

American Airlines, British Airways, +2 more

Thursday

American Airlines, British Airways, Iberia, +1 more

American Airlines, British Airways, +2 more

Friday

American Airlines, British Airways, Iberia, +1 more

American Airlines, British Airways, +2 more

Saturday

American Airlines, British Airways, Iberia, +1 more

American Airlines, British Airways, +2 more

Sunday

American Airlines, British Airways, Iberia, +1 more

American Airlines, British Airways, +2 more

See more direct flights

Direct returns

San Diego to Philadelphia

Monday

American Airlines, British Airways, Iberia, +1 more

American Airlines, British Airways, +2 more

Tuesday

American Airlines, British Airways, Iberia, +1 more

American Airlines, British Airways, +2 more

Wednesday

American Airlines, British Airways, Iberia, +1 more

American Airlines, British Airways, +2 more

Thursday

American Airlines, British Airways, Iberia, +1 more

American Airlines, British Airways, +2 more

Friday

American Airlines, British Airways, Iberia, +1 more

American Airlines, British Airways, +2 more

Saturday

American Airlines, British Airways, Iberia, +1 more

American Airlines, British Airways, +2 more

Sunday

American Airlines, British Airways, Iberia, +1 more

American Airlines, British Airways, +2 more

See more direct flights

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

 
See real verified KAYAK customer reviews for airlines flying from Philadelphia to San Diego. 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 Diego? 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 4244 reviews
7.6Entertainment
8.0Comfort
8.6Crew
8.1Boarding
7.0Food
Airline reviews

For my birthday trip this was my second time ever flying, this trip was the best.

10.0 ExcellentVenus, Jun 2025PHL - STL
Read more Southwest reviews

For my birthday trip this was my second time ever flying, this trip was the best.

First time traveling on Southwest since bag fees were implemented. Usual good service. Just more expensive now.

It was a perfect flight in all aspects! Both legs!

Boarding process, crew were good. But the seats were so uncomfortable that was all I could focus on. I literally had to sit forward so that all 3 of us could fit in row. I will try to avoid Southwest in the future for any flights over 60 minutes.

Great flight, 47 passengers on a 180 seat plane. Stewardess was pleasant and cheerful.

Great experience flying Southwest. The crew was really kind and helpful, and very friendly with our toddler.

Plane late from DC to Austin 30 minutes. Crew made up much of the time enroute to San Diego.

Fine, but how to board on SW versus othrr airlines, is just lame. Goood staff though and all was solid otherwise.

Was as expected. Crowed planes. Too many carryons delaying takeoff. But the ride only took an hour and saved me a lot of time SFO is a not a great airport.

I will be flying again Southwest Airlines. Friendly crew, comfortable and affordable.

Food was surprisingly good but the WiFi was not great

My flight was extremely cold. I had a jacket and a cover was left in each seat. The cover was extremely thin and I have a disability, fibromyalgia and arthrithis and AC air is the worst. I closed my vent and my husbands vent and it still was frigid. I asked the attendant if I could get another cover and she quickly almost dismissively and totally unconcerned stating, (I quote) (one per chair) and walked off so quickly that I didn't get a chance to explain to her that I literally have adisability. I didnt want to make a seen so I set on that flight for over 5 hours in pain, joints locking up and extremely uncomfortable. When my fibromyalgia flares up my joints not only ache but they will lock up also and it takes me days to get back to my regular self even though I take medication for it. I felt like it would not have hurt anyone at all for her to just give me an extra cover because I'm sure they have all types of medical issues in people that fly every day.

Not a "Delta" issue, but a JFK issue: We booked a connecting flight with 3 1/2 hours between to clearn immigration and customs. Our inbound flight (BCN to JFK) was on the taxiway 45 minutes which ate into our layover time. Immigtration was insanely quick with the CBP MPC app; however, clearing TSA (again, after we were ALREADY cleared in Spain on the inbound international flight) took over 95 minutes. This left us with 10 minutes before boarding the connecting flight (JFK to SAN) to walk to the far end of Terminal 4 and try to find food. We didn't find any food that could promise to serve us in under 10 minutes so we boarded the Delta flight after coming off a plance and an 8-hour flight knowing that we wouldn't be served any food on the next 5 1/2 hour flight. I feel like Delta needs to put pressure on the JFK TSA to open more screening stations (by our count, we saw only 5 scanners open and a line of - as we said - over 90 minutes. The insult is that we WERE ALREADY SCREENED through TSA, but as you come off one flight into the USA, you have to go through the whole process again. It seems like if you have a connecting flight, there should be a way to pass through immigration and customs without needing to return through TSA.

There are 4 flights in consecutive gates with about the same departure time. Two flights were boarding at the same time. One was delayed or boarding would be happening at the same time. I am not sure what Delta and LAX need to do to have a better layout at the end of Terminal 2

5 hours of delay that could've been much shorter if Delta had taken the 1 hour delay they imposed on the flight before boarding to run any of the plane checks required for flight to find the hydraulic issue that required nearly 3 hours to fix. $24 of meal credit buys a sandwich and a soft drink. Poor communication within the terminal about what gate we'd be re-boarding from and when we'd be re-boarding.

The entertainment and wifi mostly didn't work on this flight.

Terrible entertainment system - kept freezing and audio kept cutting out. Snacks were mediocre at best for a 5 hour flight.

I am still upset that my bag was lost on a recent trip to Rome ; we were inconvenienced and out €150 Euros ; delta has refused to reimburse us

This had nothing to do with Delta… The flights were on time and flawless. The service was excellent. We purchased seats in (aisle/middle) comfort plus since this was a cross country flight. Unfortunately, the woman seated at the window was 300+ pounds and, as might be expected, covered up about a third of the middle seat also. there was absolutely nothing that Delta could have done about that… I just don’t know what the answer should be. If you purchase a seat, you should should be able to use the entire seat and not just the portion that someone else is not sitting/oozing in. Disappointing…there should be something that could be done….I'm just not sure what solution could be.

Seats are much much more comfortable than United, which is what I usually fly

Flight delays numerous times. Everytime we would get close to boarding it would be delayed again. Strung along the entire time.

Overall very good, only complaint I have is the crew from CLT to SAT could have collected trash sooner.

Above and beyond effort from this crew in a tough situation. So helpful and understanding. Thank you!

We started with trouble checking in 24 hours early. Then my husband did not get his TSA precheck. Finally flight delayed due to no crew. I know things happen

Most miserable flight ever. We waited almost 2 hours on the runway because the flight was oversold. American offered $1200 credit. Then there was some nonsense about weight distribution. Ridiculous. No food for 8 plus hours on the flight. I will be writing a letter.

Honestly, I haven’t flown American in years, probably due to the pandemic and my being unable to travel for certain periods in the last two years, but it was a good experience to dig out or obtain a new American Airlines account after many years of traveling for business with American in the past.

It’s a great flight. Service is good. Staff is awesome.

Everything about the flight was lovely…We left early, arrived early, cabin crew were efficient and helpful. Flight was easy and most pleasant.

One bottle of water and a package of cookies for comfort plus. We had to literally beg a flight attendant for an extra bottle of water later in the flight due to feeling dehydrated.

late again! but its my only option to not take 9 hours to get to Memphis

The spirit flight was on time. The airplane itself was surprisingly very nice. We had great seats. Seems like there's more room. Only complaint is that I didn't get a full refund for my mistakenly buying the baggage twice.

Boarding was a breeze, however, two of the flights that I boarded with Spirit did not have Wi-Fi available.

Very good. Nothing more or less than expected. No complaints.

My experience with the spirit as a first time it was OK, but the seats need a little cushion, the problem I had the most impacted me was when checking in the scales were so off and wrong. It will tell that you would have more weight, which was not true. The scale was say that it had Thirty Eight Pounds, when get in the labels when we send the luggage into the band. It says that it was overweight. I really really dislike that because the scales are not accurate. If I use Spirit and I have that issue again. That will be my last time flying with the spirit, even though I like so much to service the planes, and everything else

hahaha we are delayed for one hour plus.. but thx we arrived San Diego safe

Worst airline ever! The guy weighing my bag had his foot on the metal plate and when I called him out on it, I got this stupid little smirk. La is a scam and so is Spirit Airlines. All the flight attendants looked like they hated our flight just as much as we did.

Unclear pricing; ended up being charged an extra $52 just to get onboard

Spirit is awful. Too expensive for what you get. Stop nickel and diming.

Was pleasantly surprised at how large the plane was. Crew very friendly.

would be great to get basic water, soda at least and stop charging for carry ons

The crew was mostly okay. The flight attendant who answered our questions was curt and unhelpful unfortunately. He seemed upset and I understand having off days.

Very bad! No good service delayed my second connection flight

They canceled flight. Hard to believe there was even a plane incoming for us to get on

You get what you pay for nothing essentially but a hard uncomfortable seat that doesn’t recline and kids screaming all around you and chaotic boarding and limited check bag weight allowance when compared to other airlines

Plane was down graded and I lost my uncharged exit row with more leg room. No mention or offer of refund from podium. Flight attendant was nice to explain this happens often and that I could request a refund via online form submission. I did this and have heard nothing back.

Horrendous. I do not recommend Frontier. The passengers lack manners and decency, and the flight attendants lack professionalism. If I wasn’t in a bind to fly with 48 hours notice for a job interview, I would not have selected a flight with Frontier and I never plan to fly with them in the future.

Not very good. Paid in excess of $400 for assigned seating for my family and that was not provided. I want that money back.

The seats were hard molded plastic covered in plastic vinyl. And the scam to charge people extra to sit together. Don’t they know we can just ask someone to trade seats. And watching the staff separate young children from parents… super classy. We had to guilt them into offering up our seats. This companies policies suck. Don’t give them your money.

Everything went as planned. Crew was great. Seats were still not that comfortable.

No frills for sure. No gate announcements about flight delay, not even water to drink on the flight.

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

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