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Cheap flights from San Diego to Philadelphia from £126

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 10/3. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — PHL
11 Jan — 18 Jan1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from San Diego to Philadelphia

Enter your travel dates to find the best prices.

Cheapest flights from San Diego to Philadelphia
Explore the most affordable flight options available from San Diego to Philadelphia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 12 December 2025.

Wed 31/1207:20SAN - PHL
1 stop7h 17mDelta
Wed 7/111:27PHL - SAN
2 stops12h 16mDelta
Deal found 10/12£267
Tue 30/1221:45SAN - PHL
1 stop8h 40mDelta
Wed 7/106:15PHL - SAN
1 stop7h 33mDelta
Deal found 11/12£281
Thu 25/1206:40SAN - PHL
1 stop7h 55mSouthwest
Sat 3/106:20PHL - SAN
2 stops9h 35mSouthwest
Deal found 10/12£298
Wed 31/1209:55SAN - PHL
2 stops8h 20mSouthwest
Wed 7/113:50PHL - SAN
2 stops10h 00mSouthwest
Deal found 11/12£302
Wed 10/1210:23SAN - PHL
1 stop9h 22mUnited Airlines
Wed 17/1206:30PHL - SAN
1 stop8h 00mUnited Airlines
Deal found 9/12£307
Fri 12/1216:25SAN - PHL
1 stop10h 21mAlaska Airlines
Tue 27/119:06PHL - SAN
1 stop18h 01mAlaska Airlines
Deal found 10/12£311
Thu 18/1207:45SAN - PHL
2 stops8h 10mSouthwest
Wed 7/113:50PHL - SAN
2 stops10h 00mSouthwest
Deal found 9/12£320
Mon 15/1206:20SAN - PHL
1 stop7h 15mSouthwest
Wed 17/1206:35PHL - SAN
1 stop9h 05mSouthwest
Deal found 11/12£338

Find flight deals from San Diego to Philadelphia

Discover tips and strategies to find the most affordable flight options for your journey from San Diego (SAN) to Philadelphia (PHL). 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 12 December 2025.

Round-trip from

£258

One-way from

£126

Popular in

December

Cheapest in

October

Average price

£397
Southwest
  • Southwest
  • 30/5-29/7
  • 3 total stops
  • 17h 25m total
  • San Diego to Philadelphia
Search Deals
JetBlue
  • JetBlue
  • 10/3
  • 1 total stop
  • 8h 03m total
  • San Diego to Philadelphia
Search Deals
Highest demand for flights based on searches. 9% potential increase in price (£24 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£6 potential savings vs. average return price).
Search Deals
Average for round-trip flights in December 2025
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Cheapflights Fare Finder

 
Customise your flight search to find flights from San Diego to Philadelphia 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 858,174 searches. Data last updated 12 December 2025.
Use the filters below to find and compare flights from San Diego to Philadelphia that are best for you.

Fly from

San Diego

Fly to

Philadelphia

Route

Depart

Return

Price

San DiegoPhiladelphia

SAN - PHL

SANPHL

San Diego

Sat 30/5

22:30-09:50

1 stop8h 20m

Philadelphia

Wed 29/7

12:55-19:00

2 stops9h 05m

£258

San DiegoPhiladelphia

SAN - PHL

SANPHL

San Diego

Mon 19/1

22:00-08:50

1 stop7h 50m

Philadelphia

Sat 24/1

17:19-22:32

1 stop8h 13m

£267

San DiegoPhiladelphia

SAN - PHL

SANPHL

San Diego

Tue 3/2

18:55-08:50

2 stops10h 55m

Philadelphia

Wed 11/2

06:00-10:33

1 stop7h 33m

£267

San DiegoPhiladelphia

SAN - PHL

SANPHL

San Diego

Sun 18/1

22:00-08:50

1 stop7h 50m

Philadelphia

Sat 31/1

09:40-20:43

2 stops14h 03m

£267

San DiegoPhiladelphia

SAN - PHL

SANPHL

San Diego

Thu 29/1

18:55-08:50

2 stops10h 55m

Philadelphia

Tue 3/2

06:55-12:55

1 stop9h 00m

£267

San DiegoPhiladelphia

SAN - PHL

SANPHL

San Diego

Wed 18/2

22:05-08:50

1 stop7h 45m

Philadelphia

Wed 25/2

06:00-14:29

2 stops11h 29m

£267

San DiegoPhiladelphia

SAN - PHL

SANPHL

San Diego

Sat 10/1

07:00-20:20

2 stops10h 20m

Philadelphia

Sat 31/1

12:40-19:20

2 stops9h 40m

£274

San DiegoPhiladelphia

SAN - PHL

SANPHL

San Diego

Wed 21/1

18:55-09:23

2 stops11h 28m

Philadelphia

Mon 26/1

09:40-18:00

2 stops11h 20m

£281

San DiegoPhiladelphia

SAN - PHL

SANPHL

San Diego

Fri 9/1

13:00-23:30

1 stop7h 30m

Philadelphia

Wed 14/1

06:30-11:48

1 stop8h 18m

£282

San DiegoPhiladelphia

SAN - PHL

SANPHL

San Diego

Sat 9/5

22:30-08:36

1 stop7h 06m

Philadelphia

Mon 18/5

16:05-22:58

1 stop9h 53m

£286

Flights are sorted by cheapest return flights first.

Deals found on 10/12

Showing 1-10 of 22 results
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Best time to book a flight from San Diego to Philadelphia

Have a flexible travel schedule? Discover the best time to fly to Philadelphia from San Diego with our price prediction graph.
Estimated return 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.

Cheapflights Insights

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

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

Use this chart to determine the optimal time to book a return flight from San Diego to Philadelphia. Price data was last updated on 5 December 2025.

To ensure you get the cheapest price possible for a flight from San Diego to Philadelphia, you should look to book at least 65 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 San Diego to Philadelphia?

Currently, June is the cheapest month in which you can book a flight from San Diego to Philadelphia (average of £58). Flying from San Diego to Philadelphia in November is currently the most expensive (average of £117). 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 SAN to PHL?

Find hourly flight availability from San Diego to Philadelphia. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 12 December 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from San Diego to Philadelphia as you normally would.

Related info for your journey

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

  • How popular is this San Diego to Philadelphia flight route?

    The San Diego to Philadelphia flight path was viewed by 1 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • How long is the flight from San Diego to Philadelphia?

    Airlines like Southwest and Delta fly from San Diego to Philadelphia in about 7h 50m. The time it takes to get you to your destination can typically vary by up to 30m. There are 2364 mi between San Diego and Philadelphia. This flight may include one or multiple stops.

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

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from San Diego to Philadelphia on time: Iberia (93%), American Airlines (93%), British Airways (92%).

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

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

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

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

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

    Yes. Cheapflights offers flight deals from San Diego to Philadelphia 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 San Diego to Philadelphia?

    Currently, June is the cheapest month in which you can book a flight from San Diego to Philadelphia (average of £58). Flying from San Diego to Philadelphia in November is currently the most expensive (average of £117). 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

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How does Cheapflights help users find flights from San Diego to Philadelphia?

When you search for this flight from San Diego to Philadelphia, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from San Diego to Philadelphia?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Philadelphia from San Diego.

Can Cheapflights find flights from San Diego to Philadelphia with no change fees?

Yes! Cheapflights helps users easily find flights from San Diego to Philadelphia with no change fees.

Can Cheapflights notify me if prices for flights from San Diego to Philadelphia become cheaper?

Yes, Cheapflights offers price alerts on San Diego to Philadelphia flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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