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$97+ Cheap flights from San Diego to Philadelphia (SAN - PHL)

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 10/2. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — PHL
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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Cheapflights Tip: The best prices from San Diego to Philadelphia are usually found in September or April, booked 21 days in advance, depart on a Wednesday or Thursday and return on a Tuesday

Cheap 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 September 11, 2025.

Round-trip from

$213
(Cheapflightsfares)

One-way from

$97
(Cheapflightsfares)

Popular in

December

Cheapest in

September

Average price

$399

Good round-trip deal

$330 or less

Good one-way deal

$172 or less
From San Diego to Philadelphia
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One-way flight from San Diego to Philadelphia
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Highest demand for flights based on searches. 8% potential increase in price ($42 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($8 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Price to beat on a round-trip flight from San Diego to Philadelphia.
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Price to beat on a one-way flight from San Diego to Philadelphia.
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Find flight deals from San Diego to Philadelphia

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 September 11, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 9/10. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/177:15 amSAN - PHL
1 stop13h 28mFrontier
Sun 9/217:00 amPHL - SAN
1 stop9h 36mFrontier
Deal found 9/10$213
This Kiwi.com deal was found by Cheapflights users on 9/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/86:41 amSAN - PHL
1 stop19h 38mFrontier
Mon 10/206:42 amPHL - SAN
1 stop16h 26mFrontier
Deal found 9/10$216
This Frontier deal was found by Cheapflights users on 9/10. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/2610:20 amSAN - PHL
1 stop11h 37mFrontier
Mon 9/298:10 amPHL - SAN
1 stop12h 44mFrontier
Deal found 9/10$217
This Booking.com deal was found by Cheapflights users on 9/10. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/247:15 amSAN - PHL
1 stop13h 28mFrontier
Mon 9/296:45 amPHL - SAN
1 stop7h 24mFrontier
Deal found 9/10$218
This Kiwi.com deal was found by Cheapflights users on 9/11. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/236:41 amSAN - PHL
1 stop19h 38mFrontier
Sun 10/2611:28 amPHL - SAN
1 stop30h 02mFrontier
Deal found 9/11$219
This Cheapflightsfares deal was found by Cheapflights users on 9/11. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/306:00 pmSAN - PHL
1 stop7h 49mFrontier
Sun 11/28:00 amPHL - SAN
1 stop13h 29mFrontier
Deal found 9/11$220
This Kiwi.com deal was found by Cheapflights users on 9/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/53:55 pmSAN - PHL
1 stop20h 06mMultiple Airlines
Thu 10/95:50 pmPHL - SAN
2 stops32h 14mMultiple Airlines
Deal found 9/10$221
This Cheapflightsfares deal was found by Cheapflights users on 9/11. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/177:15 amSAN - PHL
1 stop13h 28mFrontier
Sun 9/287:00 amPHL - SAN
1 stop9h 36mFrontier
Deal found 9/11$223
This Frontier deal was found by Cheapflights users on 9/10. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/292:24 pmSAN - PHL
1 stop11h 25mFrontier
Mon 11/36:19 amPHL - SAN
1 stop7h 58mFrontier
Deal found 9/10$226
This Kiwi.com deal was found by Cheapflights users on 9/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/167:23 pmSAN - PHL
1 stop27h 18mFrontier
Mon 10/206:42 amPHL - SAN
1 stop16h 26mFrontier
Deal found 9/10$231
This Kiwi.com deal was found by Cheapflights users on 9/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/246:15 amSAN - PHL
1 stop11h 36mSpirit Airlines
Mon 9/299:50 pmPHL - SAN
2 stops28h 44mSpirit Airlines
Deal found 9/10$234

Cheapflights Fare Finder

 
Customize 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 2,558,603 searches. Data last updated September 11, 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

Tue 10/14

6:25 pm-9:40 am

1 stop12h 15m

Philadelphia

Wed 10/22

5:25 am-11:50 am

2 stops9h 25m

$288

San DiegoPhiladelphia

SAN - PHL

SANPHL

San Diego

Mon 10/20

7:43 pm-6:44 pm

2 stops20h 01m

Philadelphia

Fri 10/24

5:05 am-6:48 pm

2 stops16h 43m

$296

San DiegoPhiladelphia

SAN - PHL

SANPHL

San Diego

Wed 10/8

6:25 pm-9:25 am

1 stop12h 00m

Philadelphia

Wed 10/15

5:25 am-9:30 am

1 stop7h 05m

$308

San DiegoPhiladelphia

SAN - PHL

SANPHL

San Diego

Fri 10/10

6:35 am-6:55 pm

1 stop9h 20m

Philadelphia

Tue 10/14

5:25 am-9:30 am

1 stop7h 05m

$317

San DiegoPhiladelphia

SAN - PHL

SANPHL

San Diego

Sat 10/18

8:30 am-8:20 pm

2 stops8h 50m

Philadelphia

Wed 10/22

2:45 pm-10:10 pm

1 stop10h 25m

$322

San DiegoPhiladelphia

SAN - PHL

SANPHL

San Diego

Thu 11/6

7:10 pm-5:50 am

1 stop7h 40m

Philadelphia

Tue 11/11

8:00 am-1:03 pm

1 stop8h 03m

$350

San DiegoPhiladelphia

SAN - PHL

SANPHL

San Diego

Fri 11/14

5:10 pm-5:55 am

1 stop9h 45m

Philadelphia

Sat 11/15

12:37 pm-8:13 pm

1 stop10h 36m

$350

San DiegoPhiladelphia

SAN - PHL

SANPHL

San Diego

Tue 10/7

6:15 am-5:13 pm

1 stop7h 58m

Philadelphia

Tue 10/21

6:00 am-10:47 am

1 stop7h 47m

$350

San DiegoPhiladelphia

SAN - PHL

SANPHL

San Diego

Thu 10/23

11:05 am-10:55 pm

2 stops8h 50m

Philadelphia

Wed 10/29

1:35 pm-7:55 pm

2 stops9h 20m

$351

San DiegoPhiladelphia

SAN - PHL

SANPHL

San Diego

Thu 10/23

5:25 pm-5:50 am

1 stop9h 25m

Philadelphia

Mon 10/27

6:50 pm-11:58 pm

1 stop8h 08m

$357

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/10

Showing 1-10 of 23 results
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The best insider tips for San Diego to Philadelphia flights

Snippets provided in this section are AI-generated based on a summarization of Cheapflights-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.
Cheapflights partnered with top experts to bring you the best recommendations for your San Diego to Philadelphia trip
Airports
SAN

Plan to arrive at SAN at least two hours before your flight to avoid stress from potential traffic congestion.

Read more about SANby Blane Bachelor
PHL

Use SEPTA for a quick trip to Center City Philadelphia from PHL. Stations are conveniently located near arrival gates.

Read more about PHLby Mark Chesnut
Our travel experts
Blane Bachelor

Blane Bachelor

Expert on SAN

Blane Bachelor

Blane Bachelor

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.

Read more
Mark Chesnut

Mark Chesnut

Expert on PHL

Mark Chesnut

Mark Chesnut

Mark Chesnut is a travel writer and public speaker with more than 30 years of experience. The 2019 winner of the NLGJA Excellence in Travel Writing Award, Mark is the author of the book “Prepare for Departure” and has covered air travel for multiple top consumer and trade media outlets.

Read more

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 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.

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 round-trip flight from San Diego to Philadelphia. Price data was last updated on August 29, 2025.

Booking 21 days in advance of your planned departure date is, on average, the best time to get cheap flights from San Diego to Philadelphia. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Currently, August is the cheapest month in which you can book a flight from San Diego to Philadelphia (average of $236). Flying from San Diego to Philadelphia in March is currently the most expensive (average of $295). 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 September 11, 2025.

It’s typically best to fly out from San Diego to Philadelphia in the afternoon. Doing so could potentially save you 58% on the flight price compared to flying in the morning, which is usually more expensive.

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

Use this chart to determine the cheapest time to fly round-trip from San Diego to Philadelphia. Price data was last updated on September 7, 2025.

Travelers seeking maximum savings on their San Diego to Philadelphia flight should consider departing on Saturday afternoons 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.

Reviews of airlines servicing Philadelphia

Get insights into the airlines that provide service to Philadelphia. 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 Philadelphia. Reviews last updated September 11, 2025.
Peruse reviews from past customers who have flown with Southwest, Delta, and American Airlines from San Diego to Philadelphia to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,248 reviews

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Food

7.0

Crew

8.6

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Southwest
8.0
Very good
4,248 reviews
Southwest
8.0
Very good
4,248 reviews

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Food

7.0

Crew

8.6

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Delta
8.0
Very good
7,960 reviews
Southwest
8.0
Very good
4,248 reviews

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Food

7.0

Crew

8.6

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,248 reviews

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Food

7.0

Crew

8.6

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Spirit Airlines
6.3
Okay
8,023 reviews
Southwest
8.0
Very good
4,248 reviews

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Food

7.0

Crew

8.6

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Frontier
5.8
Fair
3,177 reviews
Southwest
8.0
Very good
4,248 reviews

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Food

7.0

Crew

8.6

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.

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.

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

    If you wish to fly to Philadelphia from San Diego, then you need to book flights from San Diego to Philadelphia. There are 7 flights from San Diego (SAN) to Philadelphia (PHL) per day to choose from. Flights to Philadelphia from San Diego are available from 6 different airlines, which means you should have some options if you want to compare airfare deals. 5h 02m is how long a nonstop flight from San Diego to Philadelphia typically takes.

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

    Within the past month, 8 users have taken a look at flights from San Diego to Philadelphia.

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

    Airlines like Southwest and Frontier fly from San Diego to Philadelphia in about 12h 15m. The time it takes to get you to your destination can typically vary by up to 7h 46m. The distance between San Diego and Philadelphia is about 2364 mi. This flight may include one or multiple stops.

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

    According to our current data, Spirit Airlines ($116), Frontier ($150), and Delta ($199) offers the cheapest pricing from San Diego to Philadelphia. Users have found that Spirit Airlines is 73% cheaper than the other options available to this destination.

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

    The top 3 most reliable airlines when flying from San Diego to Philadelphia are American Airlines (89%), Iberia (86%) and British Airways (86%).

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

    Looking at all options, your cheapest flight can be booked for $133. While the most popular route (San Diego - Philadelphia) can be booked for $202 on average, our data indicates $1,184 when flying from San Diego to Philadelphia.

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

    San Diego to Philadelphia flights have a layover in Denver most often.

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

    Coors Field, 16th Street Mall, and Paramount Theatre are currently the most popular points of interest in Denver at the moment. 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 if you are interested in checking them out. Those landing in Denver looking to spend some time exploring during their layover can rent a car for about $53 per day.

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

    Flights departing from San Diego and landing in Philadelphia layover in Las Vegas least frequently.

  • 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 vacation 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, August is the cheapest month in which you can book a flight from San Diego to Philadelphia (average of $236). Flying from San Diego to Philadelphia in March is currently the most expensive (average of $295). 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

Traveling to a place near Philadelphia?

Book flights to Philadelphia if you plan to visit one of these locations
Vineland
Wildwood
King of Prussia
Pottstown
Reading
Dewey Beach
Ephrata
Camden
Ocean City
Cherry Hill
Dover
Elkton
Essington
Willow Grove
Newark
Millville
Chester
Exton
Havre de Grace
Plymouth Meeting

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Alternative routes for San Diego to Philadelphia

See prices for flight routes from nearby airports that may be better suited for you.
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Top 6 airlines flying from San Diego to Philadelphia

Discover the top 6 airlines that operate flights from San Diego to Philadelphia. 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 September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$116Average$254FlexibilityNo cancel feeOn-time65%
FrontierCheapest$150Average$237FlexibilityNo cancel feeOn-time62%
DeltaCheapest$199Average$336FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$252Average$434FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$294Average$469FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$343Average$496FlexibilityNo cancel feeOn-time63%

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