$99 Cheap Spirit Airlines flights San Diego (SAN) to Philadelphia (PHL)

View $99 flight on Wed, Oct 1, 2025Opens in a new window

  • Plan, book, fly with confidence

  • trending down icon
    Be in the know
    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon
    Book smarter
    Save up to 30% on select hotels after you book a flight*
  • one key icon
    Earn twice
    Earn your airline miles on top of our OneKeyCash
    Learn about One Key

$99 Cheap Spirit Airlines flights San Diego (SAN) to Philadelphia (PHL)

Prices were available within the past 7 days and start at $99 for one-way flights and $159 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Spirit Airlines
Wed, Aug 27 - Sat, Aug 30
SAN
San Diego
PHL
Philadelphia
$159 Roundtrip, found 10 hours ago
$159
Roundtrip
found 10 hours ago
Select Spirit Airlines flight, departing Wed, Aug 27 from San Diego to Philadelphia, returning Sat, Aug 30, priced at $159 found 10 hours ago
Spirit Airlines
Thu, Sep 25 - Sun, Sep 28
SAN
San Diego
PHL
Philadelphia
$173 Roundtrip, found 10 hours ago
$173
Roundtrip
found 10 hours ago
Select Spirit Airlines flight, departing Thu, Sep 25 from San Diego to Philadelphia, returning Sun, Sep 28, priced at $173 found 10 hours ago
Spirit Airlines
Tue, Sep 2 - Fri, Sep 5
SAN
San Diego
PHL
Philadelphia
$174 Roundtrip, found 10 hours ago
$174
Roundtrip
found 10 hours ago
Select Spirit Airlines flight, departing Tue, Sep 2 from San Diego to Philadelphia, returning Fri, Sep 5, priced at $174 found 10 hours ago
Spirit Airlines
Thu, Sep 25 - Sun, Sep 28
SAN
San Diego
PHL
Philadelphia
$187 Roundtrip, found 10 hours ago
$187
Roundtrip
found 10 hours ago
Select Spirit Airlines flight, departing Thu, Sep 25 from San Diego to Philadelphia, returning Sun, Sep 28, priced at $187 found 10 hours ago
Spirit Airlines
Fri, Jul 25 - Mon, Jul 28
SAN
San Diego
PHL
Philadelphia
$188 Roundtrip, found 10 hours ago
$188
Roundtrip
found 10 hours ago
Select Spirit Airlines flight, departing Fri, Jul 25 from San Diego to Philadelphia, returning Mon, Jul 28, priced at $188 found 10 hours ago
Spirit Airlines
Thu, Oct 2 - Sun, Oct 5
SAN
San Diego
PHL
Philadelphia
$189 Roundtrip, found 10 hours ago
$189
Roundtrip
found 10 hours ago
Select Spirit Airlines flight, departing Thu, Oct 2 from San Diego to Philadelphia, returning Sun, Oct 5, priced at $189 found 10 hours ago
Flights from San Diego (SAN) to Philadelphia (PHL)
Origin airport
San Diego Intl.
Destination airport
Philadelphia Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Frontier Airlines, JetBlue Airways, Southwest Airlines, Spirit Airlines, Sun Country Airlines, United
Popular airline
American Airlines
Distance
2365 mi
Average flight time
8 hours 22 mins

Frequently asked questions

How much is a Spirit Airlines flight from San Diego Intl. Airport (SAN) to Philadelphia Intl. Airport (PHL)?
You'll find cheap round-trip Spirit Airlines flights from $159 from SAN to PHL by sorting your results from "Price (lowest to highest)" on Expedia. Or look for options from $99 for a one-way journey.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
What is the cheapest month to fly from SAN to PHL with Spirit Airlines?
Spirit Airlines flights to Philadelphia are often more affordable in the low-season months of January and February. Whether you need a one-way or round-trip ticket, you could find a better deal then.
What is the cheapest time to book flights from San Diego Intl. Airport (SAN) to Philadelphia Intl. Airport (PHL) with Spirit Airlines?
Search for cheap Spirit Airlines flights from San Diego Intl. Airport (SAN) to Philadelphia Intl. Airport (PHL) one to three months before your departure day. Travelers who book domestic flights 34 to 86 days in advance can save 25% compared to those who book just 6 to 12 days ahead. No matter the fare type and journey, the best day of the week to book a domestic flight is usually Sunday and the most expensive day tends to be Monday. Passengers who book on a Sunday can save 6% on average compared to those who book their travel on a Monday.**Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC's global airline sales database.
Does Spirit Airlines fly nonstop from San Diego Intl. Airport (SAN) to Philadelphia Intl. Airport (PHL)?
Use the "Nonstop" filter when browsing for direct Spirit Airlines flights from SAN to PHL. You'll also be able to compare other carriers offering the same nonstop route.
What is the earliest Spirit Airlines flight from SAN to PHL?
Sort your results by "Morning" and "Early Morning" to see the earliest flights from SAN to PHL. Leaving early means you're 20% less likely to experience cancellations.**Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports does Spirit Airlines fly into in Philadelphia?
Catch a Spirit Airlines flight from San Diego Intl. Airport (SAN) to Philadelphia, and you're most likely to land at Philadelphia Intl. Airport (PHL). This is the airline's main hub here.
Why fly with Spirit Airlines from SAN to PHL?
A rewarding loyalty program and the ability to rack up points through Free Spirit are the start of the reasons to depart from SAN to PHL with Spirit Airlines. Plus, when you sign up to our One Key™ program, you can receive OneKeyCash™* on top of Spirit Airlines's loyalty program earnings. You can put it toward your future trips.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.
Can I change or cancel my Spirit Airlines flight from San Diego Intl. Airport (SAN) to Philadelphia Intl. Airport (PHL)?
It's generally possible to cancel or modify your flight, although there may be a charge if your booking was made more than 24 hours ago. Prefer to keep your options open? Apply the "Changes included" and "No cancel fee" filters to find flights that won't charge you extra if you need to revise your plans. To update your booking, go to "Trips," select your flight and click on "Manage Booking" for more details.

Explore a world of travel with Expedia

*Available to One Key members.