Cheap Flights from Philadelphia 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.

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 December.

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 foundRs25,550
Cheapest month to flyDecember
Average flight time5 hrs, 55 mins
Most popular airlineAmerican Airlines
Average flights per week57

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

The best price we found for a return flight from Philadelphia to San Diego International is Rs51,097. 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.
5 hours and 55 minutes is the average flight time from Philadelphia to San Diego International.
American Airlines, Qatar Airways and Iberia fly direct from Philadelphia to San Diego International.
As of November 2025, there are 171 flights per week flying from Philadelphia to San Diego International.
The cheapest month to fly from Philadelphia to San Diego International is usually February.
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 Monday, 23 February 2026.
Yes – the average flight time is 5 hours and 55 minutes.
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.
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

  • Begin your journey at one of Philadelphia's main airports, Philadelphia International Airport (PHL) or Trenton-Mercer Airport (TTN). Explore your options for booking a flight from Philadelphia to San Diego International Airport (SAN) leaving from either of these.

  • Expect to be in the air for 5 hours 50 minutes. On average, that's the duration of a direct Philadelphia to San Diego International Airport flight.

  • San Diego is three hours behind Philadelphia. San Diego International Airport is located in San Diego, which runs on the UTC-7 timezone.

  • With 20 direct flights a week between the two airports, Philadelphia International Airport (PHL) to San Diego International Airport (SAN) is the most popular route. American Airlines operates the earliest flight at 8:14am. If you prefer to get more out of your day before taking off, the last departure from PHL to SAN is with American Airlines at 7:10pm.

  • Get to the airport on time so you don't miss your flight from Philadelphia to SAN. Be there at least two hours ahead for international flights and an hour early for domestic departures to skip the mad dash to your gate.

  • Delays at security and check-in are likely if you're travelling during high season, so give yourself some extra breathing room. The recommendation for peak times? Arrive up to four hours ahead for international flights and two hours for domestic departures.

Airports in Philadelphia

Philadelphia International Airport (PHL)

  • Take the express route from Philadelphia International Airport (PHL). Nonstop flights from Philadelphia to San Diego International Airport (SAN) can be booked from here.

  • American Airlines is a well-known airline that offers direct flights from Philadelphia to San Diego International Airport departing from PHL.

  • The airline most travellers choose when flying between PHL and SAN is American Airlines.

  • The most reliable carrier for punctuality on this route is American Airlines. Its services land as scheduled 72.73% of the time.

  • Located around 19 kilometres from the centre of Philadelphia, PHL can be reached in about 15 minutes by car, depending on traffic. The journey on public transport is roughly 45 minutes.

  • Looking for a comfortable hotel close to Philadelphia International Airport? If you've booked an early flight from Philadelphia to San Diego International Airport, these stays will have you sleeping moments from your departure lounge:

  • When it comes to the on-time performance of Philadelphia International Airport, 78.93% of flights arrive within the scheduled time frame.

  • You'll find PHL at 8500 Essington Ave.

Trenton-Mercer Airport (TTN)

  • TTN is about 56 kilometres from central Philadelphia. It'll take 40 minutes or so to get to the airport driving from the city centre. Public transport takes roughly 1 hour 45 minutes.

  • Start your holiday early with an extra night away from home. Before catching your Philadelphia to SAN flight, stay in one of these hotels near Trenton-Mercer Airport:

  • Flights from Trenton-Mercer Airport have a strong track record for punctuality, with 82.45% of them arriving as planned.

  • You'll find TTN at Scotch Road, Terminal Building.

About San Diego International Airport (SAN)

  • If you have a late flight from Philadelphia to San Diego International Airport, few things top the convenience of staying near the terminal. Pick up your luggage at baggage claim and then be showered and resting soon after at one of these options near SAN:

  • Hit the road running by picking up a San Diego International Airport rental car. Grab a set of wheels from Thrifty, Dollar or Budget to explore San Diego and beyond.

  • Lock in the lowest price by reserving your vehicle around two weeks before your Philadelphia to San Diego International Airport flight.

  • The address for SAN is N Harbour Dr.

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

  • Central San Diego is roughly 3 kilometres from San Diego International Airport. Travel times by car hire or cab will vary depending on traffic conditions, so do a little research before you go.

  • It'll take around 20 minutes if you're using public transport.

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

  • Rs25,550 is the best price for a one-way ticket from Philadelphia to San Diego International Airport. Return flights start from Rs51,097. These fares may change depending on demand.

  • Don't leave things to the last moment. You're more likely to find cheap flights from Philadelphia to SAN if you book ahead. Airlines often have some amazing early bird deals.

  • Cheap Philadelphia to San Diego International Airport tickets are easier to find when your travel dates are flexible. Try using the 'Whole month' tool to compare fares throughout the month and then pick the cheapest day.

  • Save time looking for cheap flight tickets from Philadelphia to SAN by setting up a Price Alert. We'll send you an email or notification on the app when a lower fare becomes available.

  • Filters make it easier to find a bargain for your flight from Philadelphia to San Diego International Airport. Pick the airlines, flight times and number of stops that check all your boxes. Then sort the results by 'Cheapest' to find the lowest price right away.

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

  • May is the quietest month for flights from Philadelphia to San Diego International Airport (SAN), while July is the busiest. Pick the ideal time to visit San Diego based on whether you want a laid-back vibe or a more bustling atmosphere.

  • Before locking in your Philadelphia to SAN flight ticket, consider the type of weather you enjoy. August is the warmest month in San Diego, with temperatures ranging from 17ºC to 28ºC.

  • For cooler conditions, look for a cheap ticket from Philadelphia to San Diego International Airport in February when temperatures are between 7ºC and 23ºC.

More about San Diego

  • When it comes to looking for somewhere to lay your head, you'll find the top stays in San Diego right here. Check out these options once you've locked in your flight from Philadelphia to San Diego International Airport:

  • Your San Diego visit won't be complete without checking out the sights. Major attractions worth exploring include San Diego Zoo, San Diego Balboa Park and USS Midway Museum.

Explore more of the United States

  • Los Angeles is just one of the many places in the United States waiting to be discovered once you've seen San Diego. Around 177 kilometres away to the north-west, check out popular attractions including Hollywood Sign, Griffith Observatory and Hollywood Bowl.

  • If you're interested in discovering another well-known destination in the United States, consider Long Beach, roughly 145 kilometres north-west of San Diego. SkyThrills! - Fly a Real Fighter Aircraft & Become A Fighter Pilot For A Day! Long Beach, CA, Queen Mary and The Queen Mary are highlights.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.