Can I fly direct from Philadelphia to San Diego?

Direct flights from Philadelphia to San Diego are available, though they represent a smaller portion of the overall flights. Historically, approximately 10% of flights on this route have been direct. For flights with connections, travelers typically encounter 2 stopovers on average.

How often do cheap flights from Philadelphia to San Diego come up?

Cheap flights from Philadelphia to San Diego come up with regular frequency. This route is considered a regular source for deals. Travelers can typically find favorable prices on an ongoing basis.

Flights From Philadelphia

To San Diego

Cheap Flights from Philadelphia to San Diego

Q: How long is the flight from Philadelphia to San Diego?

A direct flight from Philadelphia to San Diego typically takes about 6 hours and 1 minute. Flights with one stopover, however, have a significantly longer median duration, averaging around 10 hours and 34 minutes. This difference accounts for the additional time spent during layovers.

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Deals from

Philadelphia

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

Prices updated today

485 airlines compared

80%+ AI score for best value

Fares are subject to change and may not be available for all dates. (Data last updated Nov 2, 2026.)

Today’s best flight deals from Philadelphia to San Diego

Explore current cheapest deals departing from Philadelphia to San Diego

2027-01-20 – 2027-02-02
PHL - San Diego
80% AI deal score
$223
$185
Round trip
2027-01-12 – 2027-02-02
PHL - San Diego
74% AI deal score
$210
$186
Round trip
2027-01-20 – 2027-01-26
PHL - San Diego
82% AI deal score
$241
$186
Round trip
2027-01-12 – 2027-01-26
PHL - San Diego
75% AI deal score
$218
$187
Round trip
2027-02-02 – 2027-02-08
PHL - San Diego
87% AI deal score
$324
$190
Round trip
2027-01-20 – 2027-02-08
PHL - San Diego
74% AI deal score
$216
$191
Round trip
2027-02-01 – 2027-02-08
PHL - San Diego
87% AI deal score
$324
$191
Round trip
2027-01-12 – 2027-02-08
PHL - San Diego
73% AI deal score
$210
$192
Round trip
2027-01-12 – 2027-02-01
PHL - San Diego
72% AI deal score
$210
$193
Round trip
2027-02-02 – 2027-02-22
PHL - San Diego
84% AI deal score
$298
$194
Round trip

Philadelphia to San Diego: Overview

Insights for flights from Philadelphia to San Diego

The journey from Philadelphia to San Diego covers a distance of 3806 kilometers, classifying it as a medium-haul route. This means you can expect a significant travel duration, often involving connections.

For travelers seeking cheap flights from Philadelphia to San Diego, fares typically range from $446–$959, with a median of $615. Right now, current fares are below the typical level, and about 3% of recent fares were classified as a good price. New deals show up several times a week, making it worthwhile to monitor prices.

When is the cheapest time to fly from Philadelphia to San Diego? The data indicates that October is typically the most affordable month, with a median fare of $483. Other cost-effective months include February, with a median fare of $536, and January, where the median fare is $541.

Most itineraries for flights from Philadelphia to San Diego connect at least once, with only 0.1% of recent fares being non-stop. For connecting itineraries, the typical number of connections is 2.

How long is the flight from Philadelphia to San Diego? A typical journey, including connections, takes about 6h 1m. While the non-stop flight time is also 6h 1m, the median connecting journey extends to 18h 19m, reflecting the prevalence of itineraries with multiple stops.

How much is a round trip from Philadelphia to San Diego

Regular price: $195 - $339

Prices for flights from Philadelphia to San Diego are currently below the regular range.

The regular price range for flights from Philadelphia to San Diego is between $195 and $339. The current lowest deal is $186 with Frontier Airlines, for travel from Jan 20-Feb 2.

now $186

Low $195

High $339

The cheapest time to fly from Philadelphia to San Diego

The cheapest month to fly from Philadelphia to San Diego is October, with a median price of $483. The most expensive month is June, with a median price of $1517. Prices are generally lower from January to December.

October

Cheapest

Flights from $483

June

Most Expensive

Flights from $1,517

Jan

Feb

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Direct flights from Philadelphia to San Diego

American Airlines

Last-minute flights going from Philadelphia to San Diego

Wed, Oct 28

⌛ Last-Minute

PHL - San Diego

Philadelphia (PHL) - San Diego (SAN)

Frontier Airlines

$610

$405

One-way

Thu, Oct 29

⌛ Last-Minute

PHL - San Diego

Philadelphia (PHL) - San Diego (SAN)

Frontier Airlines

$595

$597

One-way

Mon, Nov 2

⌛ Last-Minute

PHL - San Diego

Philadelphia (PHL) - San Diego (SAN)

Frontier Airlines

$429

$422

One-way

Wed, Nov 4

⌛ Last-Minute

PHL - San Diego

Philadelphia (PHL) - San Diego (SAN)

Alaska Airlines, Inc.

$319

$526

One-way

Sun, Nov 8

⌛ Last-Minute

PHL - San Diego

Philadelphia (PHL) - San Diego (SAN)

Frontier Airlines

$373

$501

One-way

Mon, Nov 9

⌛ Last-Minute

PHL - San Diego

Philadelphia (PHL) - San Diego (SAN)

Frontier Airlines

$368

$398

One-way

Biggest price drops on these dates for flights from Philadelphia to San Diego

2 nights

Oct 28 - Oct 30

$610 → $405

34%

4 nights

Dec 7 - Dec 11

$360 → $218

39%

6 nights

Feb 2 - Feb 8

$324 → $187

42%

5 nights

Feb 3 - Feb 8

$327 → $192

41%

Popular Airports to fly from Philadelphia to San Diego

Philadelphia - San Diego route insights

💸 Price insights

Recent fares are below the typical level.

Recent fares from Philadelphia to San Diego are below the typical level at $186.

📅 Best time to fly

October is historically the cheapest month to fly.

Historically, the cheapest month to fly from Philadelphia to San Diego is October, with a median price of $483.

⏱️ Flight duration

Direct flights take 6h 1m.

The median flight duration for a direct flight from Philadelphia to San Diego is 6h 1m.

✈️ Airlines & availability

Connecting flights are dominant on this route.

Connecting flights are dominant, making up 90% of recent deals from Philadelphia to San Diego.

🏆 Airline highlight

Frontier Airlines offers the most direct deals.

Frontier Airlines has 79 direct deals, more than any other airline on this route.

🎯 Booking tip

Deals appear regularly for this route.

Deals for flights from Philadelphia to San Diego appear regularly, typically every 30 days.

Philadelphia main airports to depart from

Philadelphia International (PHL)

Cheapest

Philadelphia International Airport is a convenient option for flights from Philadelphia to San Diego.

📍 ~11 km from city center (reachable by car or train)

💸 Flights from ~$135

San Diego main airports to arrive at

San Diego International (SAN)

Cheapest

San Diego International Airport is a convenient arrival point for exploring San Diego and surrounding areas.

📍 ~3 km from city center (reachable by car)

💸 Flights from ~$234

Airports nearby San Diego used as alternative

Tijuana International (TIJ)

Tijuana International (TIJ) is a useful alternative for Mexico-bound travelers, with direct access via the Cross Border Xpress (CBX) terminal.

📍 ~25 km from San Diego (reachable by car)

💸 Flights from ~$358

Business & First Class Flight Deals to San Diego

$1,704

Save $163

Alaska Airlines, Inc.

Business Class

Frequently Asked Questions About Flights to San Diego

Historically, the best prices for flights from Philadelphia to San Diego are found when booking 28-59 days in advance. During this period, the average price is around $547. Booking within 0-6 days of departure typically sees prices rise significantly, averaging $1186. Even booking 60+ days out tends to be more expensive, with an average price of $892.

Across the trailing quarter, a good price for a flight from Philadelphia to San Diego is considered to be $446 or less. The median price for this route over the same period was $615. Prices can go higher, with 75% of observed prices being $959 or less.

Historically, the cheapest months to fly from Philadelphia to San Diego include October, with a median price of $483, and February, with a median price of $536. January also offers relatively lower prices, with a median of $541. These months tend to be more affordable compared to the annual median price of $615.

Related routes

More routes from Philadelphia

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Flights to San Diego from other cities

Flights from Phoenix to San Diego Flights from Pittsburgh to San Diego Flights from Providence to San Diego Flights from Raleigh to San Diego Flights from Reno to San Diego Flights from Sacramento to San Diego Flights from Salt Lake City to San Diego Flights from San Antonio to San Diego Flights from San Francisco to San Diego Flights from San Jose to San Diego Flights from Seattle to San Diego Flights from Singapore to San Diego

Philadelphia to San Diego: Overview

Insights for flights from Philadelphia to San Diego

How much is a round trip from Philadelphia to San Diego

Regular price: $195 - $339

Prices for flights from Philadelphia to San Diego are currently below the regular range.

The regular price range for flights from Philadelphia to San Diego is between $195 and $339. The current lowest deal is $186 with Frontier Airlines, for travel from Jan 20-Feb 2.

now $186

Low $195

High $339

The cheapest time to fly from Philadelphia to San Diego

October

Cheapest

Flights from $483

June

Most Expensive

Flights from $1,517

Jan

Feb

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Direct flights from Philadelphia to San Diego

American Airlines

Last-minute flights going from Philadelphia to San Diego

Wed, Oct 28

⌛ Last-Minute

PHL - San Diego

Philadelphia (PHL) - San Diego (SAN)

Frontier Airlines

$610

$405

One-way

Thu, Oct 29

⌛ Last-Minute

PHL - San Diego

Philadelphia (PHL) - San Diego (SAN)

Frontier Airlines

$595

$597

One-way

Mon, Nov 2

⌛ Last-Minute

PHL - San Diego

Philadelphia (PHL) - San Diego (SAN)

Frontier Airlines

$429

$422

One-way

Wed, Nov 4

⌛ Last-Minute

PHL - San Diego

Philadelphia (PHL) - San Diego (SAN)

Alaska Airlines, Inc.

$319

$526

One-way

Sun, Nov 8

⌛ Last-Minute

PHL - San Diego

Philadelphia (PHL) - San Diego (SAN)

Frontier Airlines

$373

$501

One-way

Mon, Nov 9

⌛ Last-Minute

PHL - San Diego

Philadelphia (PHL) - San Diego (SAN)

Frontier Airlines

$368

$398

One-way

Biggest price drops on these dates for flights from Philadelphia to San Diego

2 nights

Oct 28 - Oct 30

$610 → $405

34%

4 nights

Dec 7 - Dec 11

$360 → $218

39%

6 nights

Feb 2 - Feb 8

$324 → $187

42%

5 nights

Feb 3 - Feb 8

$327 → $192

41%

Popular Airports to fly from Philadelphia to San Diego