£165 Cheap Flights from Philadelphia (PHL) to San Diego (SAN)

You can find one-way and return flights from PHL to SAN with Expedia. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see our cheapest fares first, and use the Price Tracking tool to receive alerts when PHL to SAN ticket fares go up or down.

If you're looking for the cheapest time to fly from Philadelphia, PA (PHL-Philadelphia Intl.) to San Diego, CA (SAN-San Diego Intl.), September is typically your best bet. You can expect average return flights to be around £285 during this month. Other budget-friendly months for this route include May and October.

Only one airline offers direct flights from Philadelphia International Airport (PHL) to San Diego International Airport (SAN). American Airlines operates 22 direct flights from PHL to SAN every week.

American Airlines is one of the cheapest airlines offering nonstop return flights from Philadelphia, PA (PHL-Philadelphia Intl.) to San Diego, CA (SAN-San Diego Intl.), with tickets starting from around £319 for flights that can be booked for departure within the next year. Sun Country Airlines offers one of the cheapest connecting return flights on this route, with tickets starting from around £386. These prices are per adult for economy/coach class. Use Expedia's search tool to compare the prices and schedules of airlines that fly this route to find the best option for your plans and budget.

To find a cheap flight from Philadelphia, PA (PHL) to San Diego, CA (SAN), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.

The best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience.

The earliest flight from Philadelphia, PA (PHL-Philadelphia Intl.) to San Diego, CA (SAN-San Diego Intl.) typically departs around 5:00 AM. This service is operated by American Airlines. This is a seasonal service, active in January and February. An early departure like this can help you make the most of your time at your destination. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.

When flying from Philadelphia, PA (PHL-Philadelphia Intl.) to San Diego, CA (SAN-San Diego Intl.), you'll cover a distance of approximately 3,808 kilometres (2,366 miles). A nonstop flight typically takes around 5 hours 48 minutes. If you opt for a one-stop flight, the journey usually extends to about 7 hours 48 minutes. Flights with two or more stops will take longer, typically around 11 hours. Keep in mind that actual flight times can vary due to factors like wind patterns and air traffic, so it's always a good idea to allow for some flexibility in your travel plans.

Select the "Business class" and "First class" filters when looking for Philadelphia, PA (PHL) to San Diego, CA (SAN) flights on Expedia. This is the easiest way to compare prices, routes and flight times for your trip.

It's easy to earn miles on a Philadelphia, PA (PHL-Philadelphia Intl.) to San Diego, CA (SAN-San Diego Intl.) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.

*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.

If you're planning to travel to San Diego from Philadelphia Intl. (PHL), you can fly directly into San Diego Intl. (SAN). Some flights may connect through major hubs like Seattle - Tacoma Intl. (SEA), O'Hare Intl. (ORD), or Midway Intl. (MDW) before reaching San Diego. Compare routes and airports on Expedia to find the best flight options for your travel plans.

Typically, booking a last minute flight from Philadelphia, PA (PHL-Philadelphia Intl.) to San Diego, CA (SAN-San Diego Intl.) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.

Securing a Philadelphia, PA (PHL-Philadelphia Intl.) to San Diego, CA (SAN-San Diego Intl.) flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.

If you booked your Philadelphia, PA (PHL) to San Diego, CA (SAN) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.