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Cheap flights from Philadelphia to San Diego from $54

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Philadelphia to San Diego departing on 3/19. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Philadelphia to San Diego

Cheap round-trip flights

These are some of the best round-trip flight deals from Philadelphia to San Diego that have been recently found on momondo from popular airlines, departing in the coming months.
10:08 pm - 7:41 amPHL-SAN
12h 33m1 stop
11:20 am - 5:52 amSAN-PHL
15h 32m2 stops
$123Spirit Airlines
Find Deal
Fri, Apr 4 - Thu, Apr 10
7:45 am - 7:18 pmPHL-SAN
14h 33m1 stop
12:48 pm - 5:15 amSAN-PHL
13h 27m1 stop
$130Frontier
Find Deal
Wed, Mar 5 - Wed, Mar 12
7:40 pm - 7:41 amPHL-SAN
15h 01m1 stop
5:30 pm - 6:05 amSAN-PHL
9h 35m1 stop
$133Spirit Airlines
Find Deal
Fri, Mar 21 - Mon, Mar 24
12:40 pm - 7:50 pmPHL-SAN
10h 10m1 stop
6:15 am - 4:22 pmSAN-PHL
7h 07m1 stop
Thu, Apr 24 - Tue, Apr 29
6:03 pm - 12:14 amPHL-SAN
9h 11m1 stop
8:07 pm - 5:52 amSAN-PHL
6h 45m1 stop
Mon, Apr 7 - Tue, Apr 8
7:35 am - 7:17 pmPHL-SAN
14h 42m1 stop
5:39 pm - 5:44 amSAN-PHL
9h 05m1 stop
Thu, Mar 6 - Wed, Mar 12
6:45 am - 12:20 amPHL-SAN
20h 35m1 stop
9:46 pm - 6:14 amSAN-PHL
29h 28m1 stop
$140Frontier
Find Deal
Tue, Mar 18 - Tue, Mar 25
7:45 am - 8:29 pmPHL-SAN
15h 44m1 stop
8:07 pm - 6:05 amSAN-PHL
6h 58m1 stop
Wed, Mar 26 - Tue, Apr 1
7:40 pm - 7:41 amPHL-SAN
15h 01m1 stop
5:30 pm - 6:05 amSAN-PHL
9h 35m1 stop
$145Spirit Airlines
Find Deal
Wed, Mar 19 - Mon, Mar 24
6:45 am - 3:31 pmPHL-SAN
11h 46m1 stop
6:25 am - 4:55 pmSAN-PHL
7h 30m1 stop
$150Frontier
Find Deal
Tue, Apr 1 - Tue, Apr 8

Spirit Airlines flights from Philadelphia to San Diego

Our best Spirit Airlines deals on Philadelphia to San Diego flight tickets
Spirit Airlines
Apr 4
PHL10:08 pmPhiladelphia
12h 33m
1 stop
SAN7:41 amSan Diego
Apr 10
SAN11:20 amSan Diego
15h 32m
2 stops
PHL5:52 amPhiladelphia
Spirit Airlines
Mar 21
PHL7:40 pmPhiladelphia
15h 01m
1 stop
SAN7:41 amSan Diego
Mar 24
SAN5:30 pmSan Diego
9h 35m
1 stop
PHL6:05 amPhiladelphia
Spirit Airlines
Mar 19
PHL7:40 pmPhiladelphia
15h 01m
1 stop
SAN7:41 amSan Diego
Mar 24
SAN5:30 pmSan Diego
9h 35m
1 stop
PHL6:05 amPhiladelphia

Frontier flights from Philadelphia to San Diego

Our best Frontier deals on Philadelphia to San Diego flight tickets
Frontier
Mar 5
PHL7:45 amPhiladelphia
14h 33m
1 stop
SAN7:18 pmSan Diego
Mar 12
SAN12:48 pmSan Diego
13h 27m
1 stop
PHL5:15 amPhiladelphia
Frontier
Mar 18
PHL6:45 amPhiladelphia
20h 35m
1 stop
SAN12:20 amSan Diego
Mar 25
SAN9:46 pmSan Diego
29h 28m
1 stop
PHL6:14 amPhiladelphia
Frontier
Apr 1
PHL6:45 amPhiladelphia
11h 46m
1 stop
SAN3:31 pmSan Diego
Apr 8
SAN6:25 amSan Diego
7h 30m
1 stop
PHL4:55 pmPhiladelphia

See travel insights to San Diego from

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

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

What is the cheapest month to fly to San Diego?

If you are unable to visit San Diego during the month of January, then departing from Philadelphia during the month November is also very affordable. Most momondo users find prices during this month for around $415.

What is the cheapest day to depart on your flight to San Diego?

The cheapest day to depart from Philadelphia to San Diego is on a Tuesday. Travelers who choose to depart for San Diego on a Tuesday will often find tickets for as low as $418. If your travel schedule is flexible, try to avoid departing on a Sunday because tickets tend to average around $544. These prices are subject to change though, so be sure to set up a Price Alert for flights to San Diego.

What is the cheapest time of day to depart on your flight to San Diego?

The cheapest time of day to fly to San Diego is at noon when flights can be purchased for as low as $394. Flights in the morning are often more expensive with an average ticket price of $503.

What is the cheapest Philadelphia to San Diego flight route?

Fly from Philadelphia to San Diego for the best Philadelphia - San Diego flight prices

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

You are more likely to see cheaper flights to San Diego from Philadelphia when booking 15 weeks ahead of your departure date. In general, you can expect to find flights to San Diego for around $456 when searching 15 weeks out.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 $411 on momondo.

What cabin class options are available on Philadelphia to San Diego flights?

There are 4 cabin classes available to choose from on Philadelphia to San Diego flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

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

As of February 2025, prices for Philadelphia to San Diego flights are approximately 7% cheaper 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 round-trip 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

$54

Fastest flight time

5h 41m

Direct flights

Every day

Airports in San Diego

1 airport
The best one-way flight to San Diego from Philadelphia in the past 72 hours is $54. The best round-trip flight deal from Philadelphia to San Diego found on momondo in the last 72 hours is $123.
The fastest flight from Philadelphia to San Diego takes 5h 41m
Direct flights go from Philadelphia to San Diego every day.
There is 1 airport near San Diego: San Diego (SAN)

  • How far is Philadelphia to San Diego by plane?

    The distance between Philadelphia and San Diego is about 2366.5 mi. Typically, this will take 7h 15m by plane in normal conditions.

  • 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 refresh daily.

  • How many operators does momondo search for flights from Philadelphia Airport to San Diego Airport?

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

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. 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 license, 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?

  • What is the most popular airline from Philadelphia to San Diego?


Best airlines flying from Philadelphia to San Diego

Compare and see reviews for airlines that fly from Philadelphia to San Diego with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $122Free CancellationRating
6.0
3,355 reviews
Search Frontier flights
Spirit AirlinesPriceFrom $141Free CancellationRating
6.3
8,013 reviews
Search Spirit Airlines flights
DeltaPriceFrom $197Free CancellationRating
8.0
8,220 reviews
Search Delta flights
United AirlinesPriceFrom $221Free CancellationRating
7.4
8,766 reviews
Search United Airlines flights
SouthwestPriceFrom $292Free CancellationRating
8.1
4,411 reviews
Search Southwest flights
American AirlinesPriceFrom $299Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
  • American Airlines Flights From Philadelphia to San Diego

    American Airlines is one of the most popular airlines flying from Philadelphia to San Diego, operating 18 flights/week on average for this route. A good American Airlines flight deal for Philadelphia to San Diego starts from $299 round-trip, up to an average price of $482. Our users have rated American Airlines at 7.2/10.


Traveling to a place near San Diego?

Book flights to San Diego if you plan to visit one of these locations
Chula Vista
El Cajon
Coronado
Julian
La Mesa
National City
Lemon Grove
San Ysidro
Imperial Beach
Borrego Springs
Alpine
Poway
Santee

Why use momondo?

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

It is quick and easy to find Philadelphia to San Diego flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to San Diego that suits you.

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

Yes. momondo allows you to filter the results for Philadelphia to San Diego flights to just show those with flexible booking policies.

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

momondo provides multiple filters to help you find the best flight to San Diego from Philadelphia. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

If you are not ready to book a flight from Philadelphia to San Diego now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to San Diego and let you know when they change.


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