Cheap Flights from Philadelphia to San Diego International from 131 €

Compare Philadelphia to San Diego International flight deals

Find the cheapest month or even day of the year to fly to San Diego International

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Flight deals from Philadelphia to San Diego International

Looking for a cheap last-minute deal or the best return flight from Philadelphia to San Diego International? Find the lowest prices on one-way and return tickets right here.

San Diego.131 € per passenger.Departing Tue, 1 Apr, returning Tue, 8 Apr.Return flight with Spirit Airlines.Outbound indirect flight with Spirit Airlines, departs from Philadelphia International on Tue, 1 Apr, arriving in San Diego International.Inbound indirect flight with Spirit Airlines, departs from San Diego International on Tue, 8 Apr, arriving in Philadelphia International.Price includes taxes and charges.From 131 €, select.

San Diego.145 € per passenger.Departing Wed, 7 May, returning Wed, 14 May.Return flight with Spirit Airlines.Outbound indirect flight with Spirit Airlines, departs from Philadelphia International on Wed, 7 May, arriving in San Diego International.Inbound indirect flight with Spirit Airlines, departs from San Diego International on Wed, 14 May, arriving in Philadelphia International.Price includes taxes and charges.From 145 €, select.

San Diego.150 € per passenger.Departing Mon, 31 Mar, returning Mon, 7 Apr.Return flight with Spirit Airlines.Outbound indirect flight with Spirit Airlines, departs from Philadelphia International on Mon, 31 Mar, arriving in San Diego International.Inbound indirect flight with Spirit Airlines, departs from San Diego International on Mon, 7 Apr, arriving in Philadelphia International.Price includes taxes and charges.From 150 €, select.

San Diego.157 € per passenger.Departing Sat, 29 Mar, returning Mon, 31 Mar.Return flight with Spirit Airlines.Outbound indirect flight with Spirit Airlines, departs from Philadelphia International on Sat, 29 Mar, arriving in San Diego International.Inbound indirect flight with Spirit Airlines, departs from San Diego International on Mon, 31 Mar, arriving in Philadelphia International.Price includes taxes and charges.From 157 €, select.

San Diego.185 € per passenger.Departing Mon, 28 Apr, returning Sun, 4 May.Return flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Philadelphia International on Mon, 28 Apr, arriving in San Diego International.Inbound indirect flight with Frontier Airlines, departs from San Diego International on Sun, 4 May, arriving in Philadelphia International.Price includes taxes and charges.From 185 €, select.

San Diego.185 € per passenger.Departing Wed, 25 Jun, returning Wed, 9 Jul.Return flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Philadelphia International on Wed, 25 Jun, arriving in San Diego International.Inbound indirect flight with Frontier Airlines, departs from San Diego International on Wed, 9 Jul, arriving in Philadelphia International.Price includes taxes and charges.From 185 €, select.

San Diego.194 € per passenger.Departing Tue, 1 Jul, returning Thu, 17 Jul.Return flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Philadelphia International on Tue, 1 Jul, arriving in San Diego International.Inbound indirect flight with Frontier Airlines, departs from San Diego International on Thu, 17 Jul, arriving in Philadelphia International.Price includes taxes and charges.From 194 €, select.

San Diego.203 € per passenger.Departing Thu, 5 Jun, returning Mon, 9 Jun.Return flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Philadelphia International on Thu, 5 Jun, arriving in San Diego International.Inbound indirect flight with Frontier Airlines, departs from San Diego International on Mon, 9 Jun, arriving in Philadelphia International.Price includes taxes and charges.From 203 €, select.

Find the cheapest month to fly from Philadelphia to San Diego International

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Philadelphia to San Diego International flights are currently cheapest in April.

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Direct flights from Philadelphia to San Diego International

Philadelphia to San Diego International: Alternative routes

Compare routes from Philadelphia to San Diego below. You may find an airport to fly into that's cheaper, faster, or easier than San Diego International.

Philadelphia to San Diego: Flight information

The things to know before you go.

Cheapest flight found	131 €
Cheapest month to fly	April
Average flight time	5 hrs, 51 mins
Most popular airline	American Airlines
Average flights per week	65

Finding cheap flights from Philadelphia to San Diego International: Frequently asked questions

How much are return flights from Philadelphia to San Diego International?

The best price we found for a return flight from Philadelphia to San Diego International is 131 €. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.

How long does it take to fly from Philadelphia to San Diego International?

5 hours and 52 minutes is the average flight time from Philadelphia to San Diego International.

Which airlines fly direct from Philadelphia to San Diego International?

American Airlines, Qatar Airways and Iberia fly direct from Philadelphia to San Diego International.

How many flights are there a week from Philadelphia to San Diego International?

As of March 2025, there are 70 flights per week flying from Philadelphia to San Diego International.

When is the cheapest time to fly from Philadelphia to San Diego International?

The cheapest month to fly from Philadelphia to San Diego International is usually March 2025.

Which upcoming date is cheapest to fly from Philadelphia to San Diego International Airport on?

After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Philadelphia to San Diego International Airport on Tuesday, 1 April 2025.

Can I get a direct flight from Philadelphia to San Diego International Airport?

Yes – the average flight time is 5 hours and 51 minutes.

How can I find the best flight deal to San Diego International?

We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to San Diego International but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.

When is the best time to book flights to San Diego?

We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to San Diego is around 40 days in advance, so don’t leave your flight to the last minute.

Travelling from Philadelphia to San Diego International Airport (SAN): what you need to know

Countless great adventures start at one of Philadelphia's main airports, Philadelphia International Airport (PHL) or Trenton-Mercer Airport (TTN). Explore the options for booking a flight from Philadelphia to San Diego International Airport (SAN) leaving from either of these bases.
Jump on a direct flight from Philadelphia to San Diego International Airport and you'll be in the air for around 5 hours 47 minutes.
San Diego International Airport is located in San Diego. The city operates in the UTC-7 timezone and is 3 hours behind Philadelphia.
The most popular route is from Philadelphia International Airport (PHL) to San Diego International Airport (SAN), with 48 direct services every week. If you want to head off as soon as possible, the earliest flight from PHL to SAN is the 08:20 American Airlines option. If you prefer to travel later, the last departure is at 18:37 with American Airlines.
For a stress-free journey, turn up at the airport two hours ahead of international flights and an hour before domestic departures. This ensures you have enough time to board your flight from Philadelphia to SAN.
Peak months like August or holiday times such as spring break and Christmas will mean bigger queues at check-in and security. Be on the safe side and get to the airport even earlier. Arriving two hours before a domestic flight and up four hours ahead of international flights is wise.

Airports in Philadelphia

Philadelphia International Airport (PHL)

Philadelphia International Airport (PHL) will have you travelling directly to your destination. Nonstop flights from Philadelphia to San Diego International Airport (SAN) take off from this terminal.
American Airlines is a well-known carrier that operates direct flights from Philadelphia to San Diego International Airport taking off from PHL.
From central Philadelphia, PHL is around 19 kilometres away. Use navigation apps or visit the official airport website to work out the best way to reach the terminal.
Booked an early flight from Philadelphia to San Diego International Airport? Avoid the hassle of rushing to the terminal (and sneak in some extra precious sleep) by choosing one of these hotels close to Philadelphia International Airport:

About San Diego International Airport (SAN)

Reserve a hotel near SAN if you have a late flight from Philadelphia to San Diego International Airport. Settle into one of these options and avoid the hassle of a long transfer:

Getting from San Diego International Airport (SAN) to central San Diego

From San Diego International Airport, San Diego is approximately 5 kilometres away. It takes around 9 minutes to reach the centre driving.
When travelling on public transport, expect a journey of roughly 20 minutes.

How to find the cheapest flights from Philadelphia to San Diego International Airport (SAN)

The best price we've seen for a one-way ticket from Philadelphia to San Diego International Airport is 59 €. The cheapest price for a return flight is 131 €. Remember fares can change due to demand at the time of booking.
8 months before your departure is the best time to score cheap tickets from Philadelphia to SAN.
You'll score the best savings on your tickets from Philadelphia to San Diego International Airport if you plan your holiday for May. Go one step further and use the 'Whole month' search tool to find the cheapest day to fly.
Sign into your online account or use the app to create a Price Alert. We'll get in touch right away if there's a deal you won't want to miss. It's simple to do, and it'll save you from searching for a cheap ticket from Philadelphia to SAN every day.
Use the filters to tailor your flights from Philadelphia to San Diego International Airport. Pick your preferred arrival and departure times, airlines and number of stops. You can also sort your results by 'Cheapest' to find the best deals.

The best time to fly from Philadelphia to San Diego International Airport (SAN)

It's time to plan your trip dates for your flight from Philadelphia to San Diego International Airport. July is the busiest month for a trip to San Diego. If you like a more relaxed vibe, go in May.
Lock in your flight from Philadelphia to SAN for August if you're eager to head to the city during its warmest month. You can expect temperatures in San Diego to range from 17ºC to 28ºC.
Look for cheap flights from Philadelphia to San Diego International Airport in February if you like travelling in cooler conditions. Temperatures are at their lowest then, ranging between 7ºC and 23ºC on average.

More about San Diego

Start your San Diego trip right by choosing the ideal place to stay. After booking your flight from Philadelphia to San Diego International Airport, explore our range of accommodation options including:
All great adventures should include some sightseeing. San Diego Zoo, USS Midway Museum and SeaWorld San Diego are essential stops on your San Diego itinerary.

Complete your San Diego trip with a car rental

Finding you a cheap flight from Philadelphia to San Diego International Airport isn't our only cool trick. Check out our car rentals in San Diego and explore at your own pace. We find deals from trusted car rental providers and put them all in one place. Instantly compare rates and then book with no fees.