HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
San Diego

$116+ Cheap flights from Philadelphia to San Diego (PHL - SAN)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/1. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — SAN
Dec 25 — Jan 11
Wed 12/25
Wed 1/1
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Philadelphia to San Diego with Cheapflights

1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”
2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.
3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

The best prices from Philadelphia to San Diego are usually found in November or September, booked 84 days in advance, depart on a Tuesday or Wednesday and return on a Tuesday

Cheap flight deals from Philadelphia to San Diego

Discover tips and strategies to find the most affordable flight options for your journey from Philadelphia (PHL) to San Diego (SAN). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated December 20, 2024.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$289
(Mytrip)

One-way from

$116
(Cheapflightsfares)

Popular in

December

Cheapest in

November

Average price

$515
Provider with most accurate pricing for Philadelphia-San Diego flight deals.
Search Deals
Provider most trusted by Cheapflights users for Philadelphia-San Diego flights.
Search Deals
From Philadelphia to San Diego
Search Deals
One-way flight from Philadelphia to San Diego
Search Deals
High demand for flights, 1% potential price rise
Search Deals
Best time to find cheap flights, 1% potential price drop
Search Deals
Average for round-trip flights in December 2024
Search Deals

Find flight deals from Philadelphia to San Diego

Cheapest flights from Philadelphia to San Diego
Explore the most affordable flight options available from Philadelphia to San Diego. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 20, 2024.

This Travelocity deal was found by Cheapflights users on 12/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/2010:45 amPHL - SAN
1 stop10h 38mMultiple Airlines
Sun 1/57:16 pmSAN - PHL
1 stop15h 29mMultiple Airlines
Deal found 12/18$384
This American Airlines deal was found by Cheapflights users on 12/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/253:36 pmPHL - SAN
1 stop8h 23mAmerican Airlines
Tue 1/2110:45 pmSAN - PHL
Nonstop5h 00mAmerican Airlines
Deal found 12/19$389
This Mytrip deal was found by Cheapflights users on 12/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/301:37 pmPHL - SAN
3 stops31h 44mSpirit Airlines
Tue 1/76:06 pmSAN - PHL
1 stop16h 39mSpirit Airlines
Deal found 12/19$420
This Gotogate deal was found by Cheapflights users on 12/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/236:40 amPHL - SAN
1 stop31h 11mFrontier
Thu 1/29:10 pmSAN - PHL
1 stop29h 50mFrontier
Deal found 12/19$444
This Delta deal was found by Cheapflights users on 12/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/215:28 pmPHL - SAN
1 stop8h 33mDelta
Wed 12/2512:32 pmSAN - PHL
1 stop7h 42mDelta
Deal found 12/18$453
This Southwest deal was found by Cheapflights users on 12/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/215:05 pmPHL - SAN
1 stop9h 00mSouthwest
Tue 12/248:35 amSAN - PHL
1 stop10h 10mSouthwest
Deal found 12/18$486
This United Airlines deal was found by Cheapflights users on 12/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/2310:00 amPHL - SAN
2 stops14h 40mUnited Airlines
Sat 1/48:05 pmSAN - PHL
2 stops12h 33mUnited Airlines
Deal found 12/19$545

Find flights from Philadelphia to San Diego within your budget

Customize your flight search to find flights from Philadelphia to San Diego that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 20, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

PhiladelphiaSan Diego

PHL - SAN

PHLSAN

Philadelphia

Thu 1/16

11:02 am-8:58 am

3 stops24h 56m

San Diego

Fri 1/24

6:15 am-12:25 am

1 stop15h 10m

$289

PhiladelphiaSan Diego

PHL - SAN

PHLSAN

Philadelphia

Mon 1/6

7:30 am-11:49 pm

2 stops43h 19m

San Diego

Thu 1/9

10:35 am-11:27 am

2 stops21h 52m

$297

PhiladelphiaSan Diego

PHL - SAN

PHLSAN

Philadelphia

Sat 1/18

7:05 pm-10:08 pm

Nonstop6h 03m

San Diego

Sat 1/25

10:45 pm-6:45 am

Nonstop5h 00m

$313

PhiladelphiaSan Diego

PHL - SAN

PHLSAN

Philadelphia

Thu 1/16

6:15 am-2:56 pm

2 stops11h 41m

San Diego

Sat 1/18

3:58 pm-8:48 pm

1 stop25h 50m

$314

PhiladelphiaSan Diego

PHL - SAN

PHLSAN

Philadelphia

Tue 1/14

11:10 am-7:18 pm

1 stop11h 08m

San Diego

Fri 1/24

8:30 pm-10:34 am

1 stop11h 04m

$316

PhiladelphiaSan Diego

PHL - SAN

PHLSAN

Philadelphia

Tue 1/14

6:55 am-12:29 pm

1 stop8h 34m

San Diego

Wed 1/22

6:15 am-6:14 pm

1 stop8h 59m

$318

PhiladelphiaSan Diego

PHL - SAN

PHLSAN

Philadelphia

Sat 1/18

12:44 pm-8:36 pm

1 stop10h 52m

San Diego

Sat 1/25

9:30 pm-9:41 am

1 stop9h 11m

$332

PhiladelphiaSan Diego

PHL - SAN

PHLSAN

Philadelphia

Wed 1/29

6:32 pm-3:17 pm

2 stops23h 45m

San Diego

Thu 2/6

3:32 pm-5:32 pm

2 stops23h 00m

$362

PhiladelphiaSan Diego

PHL - SAN

PHLSAN

Philadelphia

Fri 1/24

1:50 pm-8:45 pm

2 stops9h 55m

San Diego

Sat 1/25

8:00 am-7:50 pm

2 stops8h 50m

$370

PhiladelphiaSan Diego

PHL - SAN

PHLSAN

Philadelphia

Tue 4/1

5:35 pm-11:25 pm

1 stop8h 50m

$116

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/19

Showing 1-10 of 19 results
1
2

Compare providers for flights from Philadelphia to San Diego

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Philadelphia to San Diego in December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy3 starsTrust Score*1 star
PricelinePrice Accuracy1 starTrust Score*3 stars
FlightnetworkPrice Accuracy-Trust Score*3 stars
GotogatePrice Accuracy2 starsTrust Score*2 stars
Justfly.comPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*2 stars
CheapOairPrice Accuracy2 starsTrust Score*2 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Philadelphia-San Diego flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Philadelphia-San Diego flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Philadelphia-San Diego flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Philadelphia-San Diego flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Philadelphia-San Diego flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Philadelphia to San Diego

Have a flexible travel schedule? Discover the best time to fly to San Diego from Philadelphia with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Travel insights for flights from Philadelphia to San Diego

Get recent, data-driven insights about flights from Philadelphia to San Diego including ideal travel times, pricing trends, and more.

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

Use this chart to determine the optimal time to book a round-trip flight from Philadelphia to San Diego. Price data was last updated on December 13, 2024.

To ensure you get the cheapest price possible for a flight from Philadelphia to San Diego, you should look to book at least 84 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from Philadelphia to San Diego?

Currently, August is the cheapest month in which you can book a flight from Philadelphia to San Diego (average of $286). Flying from Philadelphia to San Diego in March is currently the most expensive (average of $366). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from PHL to SAN?

Find hourly flight availability from Philadelphia to San Diego. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 20, 2024.

A simple way to save on the total cost of your ticket is to fly from Philadelphia to San Diego in the evening. If you’re flexible enough to do this you can expect to save up to 31% on your trip compared to booking a flight in the morning.

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

Use this chart to determine the cheapest time to fly round-trip from Philadelphia to San Diego. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Philadelphia to San Diego flight should consider departing on Monday at noon when fares are most often at their lowest. Sunday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

Rainfall in San Diego by month

Plan your trip to San Diego by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in San Diego ranges from 0.0 - 2.3 inches per month. February is typically the wettest month, when rainfall can reach 2.3 in. July is typically the driest time to visit San Diego when rainfall is around 0.0 in.

Temperature in San Diego by month

Plan your trip to San Diego by taking into account the average temperature totals by month.

If weather is an important factor for your trip to San Diego, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 71.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 57.2 F).

Reviews of airlines servicing San Diego

Get insights into the airlines that provide service to San Diego. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to San Diego. Reviews last updated December 20, 2024.
Peruse reviews from past customers who have flown with Spirit Airlines, Delta and United Airlines from Philadelphia to San Diego to help guide your decision. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
4,821 reviews

Comfort

8.1

Food

7.2

Crew

8.7

Boarding

8.2

Overall

8.1

Entertainment

7.7

Reviews

1 / 10

No issues. I needed pre boarding and I was able to get it without issue

Southwest
8.1
Very good
4,821 reviews
Southwest
8.1
Very good
4,821 reviews

Comfort

8.1

Food

7.2

Crew

8.7

Boarding

8.2

Overall

8.1

Entertainment

7.7

Reviews

1 / 10

No issues. I needed pre boarding and I was able to get it without issue

Alaska Airlines
8.0
Very good
9,547 reviews
Southwest
8.1
Very good
4,821 reviews

Comfort

8.1

Food

7.2

Crew

8.7

Boarding

8.2

Overall

8.1

Entertainment

7.7

Reviews

1 / 10

No issues. I needed pre boarding and I was able to get it without issue

Delta
8.0
Very good
8,600 reviews
Southwest
8.1
Very good
4,821 reviews

Comfort

8.1

Food

7.2

Crew

8.7

Boarding

8.2

Overall

8.1

Entertainment

7.7

Reviews

1 / 10

No issues. I needed pre boarding and I was able to get it without issue

JetBlue
7.4
Good
3,268 reviews
Southwest
8.1
Very good
4,821 reviews

Comfort

8.1

Food

7.2

Crew

8.7

Boarding

8.2

Overall

8.1

Entertainment

7.7

Reviews

1 / 10

No issues. I needed pre boarding and I was able to get it without issue

United Airlines
7.4
Good
9,048 reviews
Southwest
8.1
Very good
4,821 reviews

Comfort

8.1

Food

7.2

Crew

8.7

Boarding

8.2

Overall

8.1

Entertainment

7.7

Reviews

1 / 10

No issues. I needed pre boarding and I was able to get it without issue

Related info for your journey

Find useful and relevant information for your journey from Philadelphia to San Diego. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airports do I use to fly from Philadelphia to San Diego?

    If you wish to fly to San Diego from Philadelphia, then you need to book flights from Philadelphia to San Diego. There are 4 flights from Philadelphia (PHL) to San Diego (SAN) per day to choose from. Flights to San Diego from Philadelphia are available from 6 different airlines, which means you should have some options if you want to compare airfare deals. 5h 47m is how long a nonstop flight from Philadelphia to San Diego typically takes.

  • What are the cheapest airlines flying from Philadelphia to San Diego round-trip?

    According to our current data, Spirit Airlines ($289), Frontier ($300), and American Airlines ($313) offers the cheapest pricing from Philadelphia to San Diego. Spirit Airlines is priced at 37% lower than the current average price of a flight leaving 3 months from now.

  • What are the cheapest airlines to fly from Philadelphia to San Diego one-way?

    To fly one-way, consider booking your trip with Frontier, which is currently one of the cheapest options available, starting at $116. Spirit Airlines flights start at $117 while deals on JetBlue start at $126 one-way.

  • What are the most reliable airlines from Philadelphia to San Diego?

    No one likes to see their flight delayed. When booking a flight from Philadelphia to San Diego consider choosing Iberia (89%), American Airlines (86%) or Qatar Airways (84%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from Philadelphia to San Diego?

    Looking for the cheapest flight from Philadelphia to San Diego? While on average our users pay $851, our data indicates the cheapest price to be $171. The most popular route (Philadelphia - San Diego), is priced around $137.

  • Where are the most common layover locations when flying from Philadelphia to San Diego?

    The most popular layover on flights from Philadelphia to San Diego is Denver.

  • What are some popular things to do or see while on a layover in Denver?

    Denver travelers tend to visit Coors Field, 16th Street Mall, and Paramount Theatre more than anywhere else. Coors Field, 16th Street Mall, and Paramount Theatre are located about 18.4 mi, 18.7 mi, and 18.6 mi, respectively from Denver Intl. Those on a layover in Denver in need of a rental car can book one at Denver Intl for about $61.

  • Where are the least popular layover locations for Philadelphia to San Diego flights?

    Philadelphia to San Diego flights that have layovers will least frequently stop in Las Vegas.

  • Can I find deals for flights from Philadelphia to San Diego that include hotel bookings?

    Yes. In addition to deals on Philadelphia to San Diego flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Philadelphia to San Diego?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Philadelphia to San Diego.

  • Can I find deals for business class flights from Philadelphia to San Diego?

    Yes. Cheapflights offers flight deals from Philadelphia to San Diego by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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

    Currently, August is the cheapest month in which you can book a flight from Philadelphia to San Diego (average of $286). Flying from Philadelphia to San Diego in March is currently the most expensive (average of $366). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Philadelphia to San Diego

See prices for flight routes from nearby airports that may be better suited for you.
John F Kennedy Intl to Los Angeles flights
Newark to Los Angeles flights
John F Kennedy Intl to Las Vegas flights
Newark to Las Vegas flights
John F Kennedy Intl to San Francisco flights
LaGuardia to Los Angeles flights
Newark to San Francisco flights
LaGuardia to Las Vegas flights
Dulles Intl to Las Vegas flights
Reagan-National to Los Angeles flights
Dulles Intl to Los Angeles flights
Philadelphia to Las Vegas flights
Newark to Santa Ana flights
Reagan-National to Las Vegas flights
John F Kennedy Intl to San Diego flights
Newark to Burbank flights
LaGuardia to San Francisco flights
Newark to San Diego flights
LaGuardia to Burbank flights
Reagan-National to San Francisco flights
LaGuardia to Santa Ana flights
Newark to Ontario flights
Philadelphia to Los Angeles flights
Dulles Intl to San Francisco flights
Newark to Oakland flights
John F Kennedy Intl to Ontario flights
Philadelphia to San Francisco flights
Dulles Intl to San Diego flights
LaGuardia to San Diego flights
LaGuardia to Ontario flights
John F Kennedy Intl to Santa Ana flights
LaGuardia to Oakland flights
Pittsburgh to Las Vegas flights
Newark to San Jose flights
Reagan-National to San Diego flights
John F Kennedy Intl to San Jose flights
John F Kennedy Intl to Palm Springs flights
Reagan-National to Ontario flights
Dulles Intl to Ontario flights
Newark to Palm Springs flights
Dulles Intl to Palm Springs flights
Dulles Intl to Sacramento flights
LaGuardia to Palm Springs flights
Philadelphia to Ontario flights
Newark to Reno flights
Pittsburgh to Los Angeles flights
John F Kennedy Intl to Reno flights
LaGuardia to Reno flights
LaGuardia to San Jose flights

Top 6 airlines flying from Philadelphia to San Diego

Discover the top 6 airlines that operate flights from Philadelphia to San Diego. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 20, 2024.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$123Average$241FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$144Average$258FlexibilityNo cancel feeOn-time65%
DeltaCheapest$206Average$406FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$221Average$387FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$292Average$480FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$303Average$490FlexibilityNo cancel feeOn-time71%
100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.