Cheap flights from Philadelphia to San Diego from $75
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 7/1. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
Discover deals from 900+ travel sites with momondo.
Save money when you book flights with momondo
Big names and deals
Big names and deals
Search 100s of travel sites to compare prices.Filter for what you want
Filter for what you want
Free Wi-Fi? Stopover? Instantly customize your results.Trusted and free
Trusted and free
We’re completely free to use - no hidden charges or fees.Price Alerts
Price Alerts
Not ready to book? to track prices.Find the cheapest flights from Philadelphia to San Diego
Cheap round-trip flights
Cheap one-way flights
Cheap last minute flights
Cheap direct flights
JetBlue flights from Philadelphia to San Diego
Our best JetBlue deals on Philadelphia to San Diego flight tickets
American Airlines flights from Philadelphia to San Diego
Our best American Airlines deals on Philadelphia to San Diego flight tickets
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 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 $397.
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 $394. If your travel schedule is flexible, try to avoid departing on a Sunday because tickets tend to average around $517. 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 $478.
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 12 weeks ahead of your departure date. In general, you can expect to find flights to San Diego for around $430 when searching 12 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 $371 on momondo.
What cabin class options are available on Philadelphia to San Diego flights?
There are 3 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.
What is the cheapest airline that flies from Philadelphia to San Diego?
Spirit Airlines, Southwest, and JetBlue are the most popular carriers operating from Philadelphia to San Diego
What airlines fly to San Diego?
American Airlines, United Airlines and Delta are the top three most popular airlines that fly to San Diego from Philadelphia according to our data. American Airlines is the first choice among our users, with 48% of people opting to fly with this airline when traveling to San Diego. Keep in mind that there are 10 different airlines that fly to San Diego on a routine basis, so you have a few additional options to choose from.
How many flights depart from Philadelphia to San Diego on average per day?
As of June 2025, 7 flights take off from Philadelphia and land in San Diego each day. The most common flight departure time for this route is 4:00PM, with 42% of daily flights taking off in the afternoon.
How many flights depart from Philadelphia to San Diego on average per week?
The number of flights available between Philadelphia and San Diego is 49 per week as of June 2025. The most frequent departure day is Mon, with 14% of weekly flights leaving on this day.
When to book flights from Philadelphia to San Diego
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
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 5h 30m 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?
As of June 2025, there are 6 operators available to choose from 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?
momondo data reveals that the most frequently booked plane model on the route from Philadelphia to San Diego is Airbus A321-100/200, representing 64.26% of all bookings. The subsequent popular models are Airbus A321neo at 24.59%, Boeing 737 MAX 9 at 1.80%, and Boeing 737-900 Passenger/BBJ3 (winglets) at 1.80%.
What is the most popular airline from Philadelphia to San Diego?
momondo data reveals that the most frequently booked airline on the route from Philadelphia to San Diego is American Airlines, representing 83% of all bookings. The subsequent popular airlines are Frontier at 5%, Spirit Airlines at 4%, and Delta at 3%.
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 | ||
|---|---|---|---|---|---|
| PriceFrom $139 | Free Cancellation | Rating 6.3 8,052 reviews | |||
| PriceFrom $141 | Free Cancellation | Rating 5.9 3,295 reviews | |||
| PriceFrom $158 | Free Cancellation | Rating 7.4 8,790 reviews | |||
| PriceFrom $236 | Free Cancellation | Rating 8.0 7,946 reviews | |||
| PriceFrom $290 | Free Cancellation | Rating 7.2 10,000 reviews | |||
| PriceFrom $292 | Free Cancellation | Rating 8.0 4,287 reviews |
American Airlines Flights From Philadelphia to San Diego
American Airlines is one of the most popular airlines flying from Philadelphia to San Diego, operating 21 flights/week on average for this route. A good American Airlines flight deal for Philadelphia to San Diego starts from $290 round-trip, up to an average price of $457. 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 locationsWhy 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.