How many flights depart from Philadelphia to San Diego on average per day?

As of November 2026, there are 4 flights per day flying from Philadelphia to San Diego. The most common time of day flights depart is 18:00, with 42% of flights taking off in the evening.

How many flights depart from Philadelphia to San Diego on average per week?

31 flights are operational weekly from Philadelphia to San Diego as of November 2026. The most popular departure day for this route is Wed, with 23% of flights per week taking off on this day.

What is the cheapest airline that flies from Philadelphia to San Diego?

Southwest and Delta are the most popular carriers operating from Philadelphia to San Diego

When did momondo last update prices for flights from Philadelphia Airport to San Diego Airport?

Prices for flights from Philadelphia Airport to San Diego Airport are refreshed on a daily basis.

How old do you have to be to fly from Philadelphia Airport to San Diego Airport?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and stopovers. It is recommended that you verify with the airline you are booking with for travel from Philadelphia Airport to San Diego Airport.

What documentation or ID do you need to fly to San Diego Airport?

The travel and health documents required for your trip to San Diego Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s licence, and a passport valid for six-months after you plan to arrive at San Diego Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

R2 950 Cheap Flights from Philadelphia to San Diego in 2026/27

Find the cheapest flights from Philadelphia to San Diego

Return

One-way

Last minute

Direct

Cheap return flights

Enter your travel dates to find the best prices.

18:11 - 10:00PHL Philadelphia-SAN San Diego

18h 49m1 stop Seattle/Tacoma Intl

8:00 - 5:40SAN San Diego-PHL Philadelphia

18h 40m2 stops Phoenix Sky Harbor Intl Seattle/Tacoma Intl

R7 037Alaska Airlines

Wed, Dec 2 - Sat, Dec 5

19:10 - 23:55PHL Philadelphia-SAN San Diego

7h 45m1 stop Chicago Midway

22:40 - 11:05SAN San Diego-PHL Philadelphia

9h 25m1 stop Chicago Midway

R7 070Southwest

Tue, Dec 22 - Mon, Jan 4

13:25 - 21:15PHL Philadelphia-SAN San Diego

10h 50m2 stops Chicago Midway Denver Intl

8:10 - 19:55SAN San Diego-PHL Philadelphia

8h 45m2 stops Fresno Airterminal Denver Intl

R7 103Southwest

Thu, Jan 28 - Sun, Jan 31

7:10 - 23:58PHL Philadelphia-SAN San Diego

19h 48m1 stop Salt Lake City

19:11 - 17:47SAN San Diego-PHL Philadelphia

19h 36m1 stop Salt Lake City

R7 169Delta

Thu, Dec 10 - Mon, Dec 14

17:56 - 10:50PHL Philadelphia-SAN San Diego

19h 54m2 stops Seattle/Tacoma Intl Phoenix Sky Harbor Intl

13:45 - 16:56SAN San Diego-PHL Philadelphia

24h 11m1 stop Seattle/Tacoma Intl

R7 202Alaska Airlines

Tue, Feb 23 - Tue, Mar 2

18:14 - 12:24PHL Philadelphia-SAN San Diego

21h 10m2 stops Seattle/Tacoma Intl Phoenix Sky Harbor Intl

19:50 - 17:11SAN San Diego-PHL Philadelphia

18h 21m1 stop Seattle/Tacoma Intl

R7 218Alaska Airlines

Tue, Jan 26 - Tue, Feb 2

18:11 - 10:00PHL Philadelphia-SAN San Diego

18h 49m1 stop Seattle/Tacoma Intl

12:53 - 5:40SAN San Diego-PHL Philadelphia

13h 47m2 stops Phoenix Sky Harbor Intl Seattle/Tacoma Intl

R7 235Alaska Airlines

Wed, Dec 2 - Sat, Dec 5

7:00 - 21:50PHL Philadelphia-SAN San Diego

17h 50m2 stops Seattle/Tacoma Intl Sacramento Intl

8:00 - 5:40SAN San Diego-PHL Philadelphia

18h 40m2 stops Phoenix Sky Harbor Intl Seattle/Tacoma Intl

R7 251Alaska Airlines

Thu, Dec 3 - Sat, Dec 5

7:00 - 16:40PHL Philadelphia-SAN San Diego

12h 40m2 stops Seattle/Tacoma Intl Sacramento Intl

12:53 - 5:40SAN San Diego-PHL Philadelphia

13h 47m2 stops Phoenix Sky Harbor Intl Seattle/Tacoma Intl

R7 383Alaska Airlines

Thu, Dec 3 - Sat, Dec 5

7:10 - 23:58PHL Philadelphia-SAN San Diego

19h 48m1 stop Salt Lake City

19:11 - 17:47SAN San Diego-PHL Philadelphia

19h 36m1 stop Salt Lake City

R7 416Delta

Fri, Dec 4 - Fri, Dec 11

Cheap last-minute flights

Enter your travel dates to find the best prices.

7:45 - 12:56PHL Philadelphia-SAN San Diego

8h 11m1 stop Denver Intl

8:05 - 18:51SAN San Diego-PHL Philadelphia

7h 46m1 stop Houston George Bush Intcntl

R8 652United Airlines

Tue, Nov 10 - Sat, Nov 14

6:15 - 12:56PHL Philadelphia-SAN San Diego

9h 41m2 stops Chicago O'Hare Intl Denver Intl

13:10 - 23:25SAN San Diego-PHL Philadelphia

7h 15m1 stop Washington, D.C. Dulles Intl

R8 734United Airlines

Tue, Nov 10 - Sat, Nov 14

17:49 - 10:13PHL Philadelphia-SAN San Diego

19h 24m1 stop Seattle/Tacoma Intl

9:30 - 5:40SAN San Diego-PHL Philadelphia

17h 10m2 stops Reno Seattle/Tacoma Intl

R9 163Alaska Airlines

Wed, Nov 11 - Sun, Nov 22

7:20 - 12:25PHL Philadelphia-SAN San Diego

8h 05m1 stop Salt Lake City

12:09 - 23:46SAN San Diego-PHL Philadelphia

8h 37m1 stop Minneapolis St Paul

R9 410Delta

Sat, Nov 7 - Wed, Nov 18

5:00 - 11:25PHL Philadelphia-SAN San Diego

9h 25m2 stops Denver Intl Phoenix Sky Harbor Intl

12:35 - 23:30SAN San Diego-PHL Philadelphia

7h 55m1 stop Denver Intl

R9 492Southwest

Wed, Nov 11 - Wed, Nov 11

18:21 - 0:19PHL Philadelphia-SAN San Diego

8h 58m1 stop San Francisco

12:05 - 22:57SAN San Diego-PHL Philadelphia

7h 52m1 stop Houston George Bush Intcntl

R9 789United Airlines

Fri, Nov 6 - Sat, Nov 7

14:12 - 19:41PHL Philadelphia-SAN San Diego

8h 29m1 stop Atlanta Hartsfield-Jackson

6:15 - 16:35SAN San Diego-PHL Philadelphia

7h 20m1 stop Detroit Metropolitan Wayne County

R9 855Delta

Wed, Nov 11 - Sun, Nov 22

7:02 - 14:47PHL Philadelphia-SAN San Diego

10h 45m1 stop Seattle/Tacoma Intl

19:45 - 16:45SAN San Diego-PHL Philadelphia

18h 00m1 stop Seattle/Tacoma Intl

R9 871Alaska Airlines

Sat, Nov 7 - Thu, Nov 12

18:21 - 0:19PHL Philadelphia-SAN San Diego

8h 58m1 stop San Francisco

8:45 - 19:31SAN San Diego-PHL Philadelphia

7h 46m1 stop Denver Intl

R10 036United Airlines

Fri, Nov 6 - Tue, Nov 10

14:12 - 19:41PHL Philadelphia-SAN San Diego

8h 29m1 stop Atlanta Hartsfield-Jackson

6:15 - 16:35SAN San Diego-PHL Philadelphia

7h 20m1 stop Detroit Metropolitan Wayne County

R10 102Delta

Wed, Nov 11 - Sun, Nov 22

Save money when you book flights with momondo

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customise your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Delta flights from Philadelphia to San Diego

Our best Delta deals on Philadelphia to San Diego flight tickets

Delta

Dec 10

PHL7:10Philadelphia

19h 48m

1 stop

SAN23:58San Diego

Dec 14

SAN19:11San Diego

19h 36m

1 stop

PHL17:47Philadelphia

R7 169

Delta

Dec 4

PHL7:10Philadelphia

19h 48m

1 stop

SAN23:58San Diego

Dec 11

SAN19:11San Diego

19h 36m

1 stop

PHL17:47Philadelphia

R7 416

Delta

Dec 5

PHL7:10Philadelphia

18h 35m

1 stop

SAN22:45San Diego

Dec 9

SAN6:15San Diego

8h 32m

1 stop

PHL17:47Philadelphia

R7 548

Southwest flights from Philadelphia to San Diego

Our best Southwest deals on Philadelphia to San Diego flight tickets

Southwest

Dec 22

PHL19:10Philadelphia

7h 45m

1 stop

SAN23:55San Diego

Jan 4

SAN22:40San Diego

9h 25m

1 stop

PHL11:05Philadelphia

R7 070

Southwest

Jan 28

PHL13:25Philadelphia

10h 50m

2 stops

SAN21:15San Diego

Jan 31

SAN8:10San Diego

8h 45m

2 stops

PHL19:55Philadelphia

R7 103

Southwest

Jan 14

PHL18:15Philadelphia

7h 45m

1 stop

SAN23:00San Diego

Jan 18

SAN22:35San Diego

9h 40m

1 stop

PHL11:15Philadelphia

R7 449

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

PhiladelphiaSan Diego

PHL Philadelphia - SAN San Diego

PHLSAN

Philadelphia

Wed 2/12

18:11-10:00

1 stop18h 49m

San Diego

Sat 5/12

8:00-5:40

2 stops18h 40m

R7 037

Fastest return journey

PhiladelphiaSan Diego

PHL Philadelphia - SAN San Diego

PHLSAN

Philadelphia

Tue 22/12

19:10-23:55

1 stop7h 45m

San Diego

Mon 4/1

22:40-11:05

1 stop9h 25m

R7 070

PhiladelphiaSan Diego

PHL Philadelphia - SAN San Diego

PHLSAN

Philadelphia

Thu 28/1

13:25-21:15

2 stops10h 50m

San Diego

Sun 31/1

8:10-19:55

2 stops8h 45m

R7 103

PhiladelphiaSan Diego

PHL Philadelphia - SAN San Diego

PHLSAN

Philadelphia

Thu 10/12

7:10-23:58

1 stop19h 48m

San Diego

Mon 14/12

19:11-17:47

1 stop19h 36m

R7 169

PhiladelphiaSan Diego

PHL Philadelphia - SAN San Diego

PHLSAN

Philadelphia

Tue 23/2

17:56-10:50

2 stops19h 54m

San Diego

Tue 2/3

13:45-16:56

1 stop24h 11m

R7 202

PhiladelphiaSan Diego

PHL Philadelphia - SAN San Diego

PHLSAN

Philadelphia

Tue 26/1

18:14-12:24

2 stops21h 10m

San Diego

Tue 2/2

19:50-17:11

1 stop18h 21m

R7 218

PhiladelphiaSan Diego

PHL Philadelphia - SAN San Diego

PHLSAN

Philadelphia

Wed 2/12

18:11-10:00

1 stop18h 49m

San Diego

Sat 5/12

12:53-5:40

2 stops13h 47m

R7 235

PhiladelphiaSan Diego

PHL Philadelphia - SAN San Diego

PHLSAN

Philadelphia

Thu 3/12

7:00-21:50

2 stops17h 50m

San Diego

Sat 5/12

8:00-5:40

2 stops18h 40m

R7 251

PhiladelphiaSan Diego

PHL Philadelphia - SAN San Diego

PHLSAN

Philadelphia

Thu 3/12

7:00-16:40

2 stops12h 40m

San Diego

Sat 5/12

12:53-5:40

2 stops13h 47m

R7 383

PhiladelphiaSan Diego

PHL Philadelphia - SAN San Diego

PHLSAN

Philadelphia

Fri 4/12

7:10-23:58

1 stop19h 48m

San Diego

Fri 11/12

19:11-17:47

1 stop19h 36m

R7 416

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Philadelphia to San Diego

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Other information

What is the typical price of a round-trip flight between Philadelphia and San Diego?

Prices are currently low for flights on this route.

Typical prices usually range from R7 581 to R10 399.
The lowest price recently found on this route was R7 037.

What is the cheapest month to fly to San Diego?

The month of February is, on average, the cheapest month to fly to San Diego from Philadelphia, with most prices found around R7 053. The month of January is another great option to travel to San Diego, with average flight prices from Philadelphia averaging around R7 218.

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

You are more likely to see cheaper flights to San Diego from Philadelphia when booking weeks ahead of your departure date. In general, you can expect to find flights to San Diego for around R8 332 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Diego from Philadelphia for as low as R7 416 on momondo.

How have Philadelphia to San Diego flight prices changed over time?

As of November 2026, prices for Philadelphia to San Diego flights are approximately 6% more expensive when compared to flights at the same time last year.

When to book flights from Philadelphia to San Diego

Are you open to changing your travel dates? Check out the ideal times to fly from Philadelphia to San Diego according to our flight data. Find out which month and days have the cheapest flights.

Estimated return price

Cheap Philadelphia to San Diego (PHL to SAN) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Philadelphia to San Diego

Best price found	R2 950
Direct flights	Tue
Airports in San Diego	1 airport

The best one-way flight to San Diego from Philadelphia in the past 72 hours is R2 950. The best return flight deal from Philadelphia to San Diego found on momondo in the last 72 hours is R7 037.

Direct flights go from Philadelphia to San Diego on Tuesday. There are no airlines offering direct flights..

There is 1 airport in San Diego. From Philadelphia there are direct flights to San Diego (SAN).

Search flight deals

Frequently asked questions about flying from Philadelphia to San Diego

How far is Philadelphia to San Diego by plane?
San Diego is 3808,6 km away from Philadelphia.
When did momondo last update prices for flights from Philadelphia Airport to San Diego Airport?
Prices for flights from Philadelphia Airport to San Diego Airport are refreshed on a daily basis.
How old do you have to be to fly from Philadelphia Airport to San Diego Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and stopovers. It is recommended that you verify with the airline you are booking with for travel from Philadelphia Airport to San Diego Airport.
What documentation or ID do you need to fly to San Diego Airport?
The travel and health documents required for your trip to San Diego Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s licence, and a passport valid for six-months after you plan to arrive at San Diego Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular plane model from Philadelphia to San Diego?
Based on momondo bookings for flights between Philadelphia and San Diego, the leading plane model is Airbus A321-100/200, making up 44,83% of the total bookings. Other popular models include Boeing 737 MAX 8 with 14,66%, Airbus A321neo with 13,79%, and Boeing 737 MAX 9 with 4,31%.

El Cajon

Why use momondo?

Why should I use momondo to find a flight deal from Philadelphia to San Diego?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to San Diego from Philadelphia.

Can I find flights from Philadelphia to San Diego with flexible booking policies on momondo?

Yes. All flights to San Diego from Philadelphia on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Philadelphia to San Diego?

Once you have performed a search for Philadelphia to San Diego flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Philadelphia to San Diego right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Philadelphia to San Diego flights. All you need is a valid email address and we will do the rest; it is that quick and easy.