$143 Cheap Delta flights Jacksonville (JAX) to Philadelphia (PHL)

Finding cheap one-way Delta Air Lines flights from JAX to PHL from $143 on Expedia couldn’t be easier — just filter by “Price (lowest to highest).” Alternatively, check out our affordable round-trip fares from $189 for your next exciting getaway.**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.

January is one of the least expensive months to jet away to Philadelphia with Delta Air Lines. You could also find great prices on return and one-way tickets in February.

For cheap Delta Air Lines fares from Jacksonville Intl. Airport (JAX) to Philadelphia Intl. Airport (PHL), start searching one to three months before your intended departure. Securing domestic flights 34 to 86 days in advance could save you 25% compared to booking just 6 to 12 days ahead. The day you book can also influence what you pay. Sunday is generally the most affordable, while Monday is often the most expensive for domestic flights. You can save 6% on average by choosing to book on a Sunday.**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.

Fill in your dates, hit search and check the “Nonstop” filter on Expedia to find any direct flights from JAX to PHL with Delta Air Lines or another carrier.

To find the earliest departure from JAX to PHL with Delta Air Lines, sort your results by “Early Morning” and “Morning.” Booking an early flight usually means you’re 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.

Board a Delta Air Lines flight from Jacksonville Intl. Airport (JAX) to Philadelphia, and you’ll probably land at Philadelphia Intl. Airport (PHL). This is the airline’s main hub in this city.

Delta Air Lines makes traveling from JAX to PHL more comfortable with an excellent in-flight experience and a rewarding loyalty program. You could even start collecting points with Delta SkyMiles. Be sure to sign up to our free One Key™ rewards program to earn OneKeyCash™*, which can be redeemed on future trips.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.

Changes are usually free within 24 hours of making a booking, but your airline may charge you after that. For further details about modifying your reservation, go to your “Trips,” select your flight and click on “Manage Booking.” If you want the flexibility to adjust your plans without additional costs, check the “Changes included” or “No cancel fee” filter when organizing your trip.