$309 Cheap Delta flights Philadelphia (PHL) to Sioux Falls (FSD)

You’ll discover cheap return Delta Air Lines flights from $377 from PHL to FSD by sorting your results from “Price (lowest to highest)” on Expedia. Or look for bargains from $309 for a one-way trip.**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 off to Sioux Falls with Delta Air Lines. You could also find great deals on one-way and return tickets in December.

Look for cheap Delta Air Lines flights from Philadelphia Intl. Airport (PHL) to Sioux Falls Regional Airport (FSD) one to three months prior to your departure. 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. Regardless of fare class and itinerary, the best day to book a domestic flight is usually Sunday and the most expensive day is typically 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.

Use our “Nonstop” filter when looking for direct Delta Air Lines flights from PHL to FSD. It’s also a good way to compare other airlines servicing the same nonstop route.

To find the earliest departure from PHL to FSD with Delta Air Lines, filter your search by “Morning” and “Early Morning.” Choosing an early flight generally 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.

Catch a Delta Air Lines flight from Philadelphia Intl. Airport (PHL) to Sioux Falls, and you’ll probably touch down at Sioux Falls Regional Airport (FSD). This is the airline’s primary hub in this destination.

Delta Air Lines makes flying from PHL to FSD more enjoyable with an excellent in-flight experience and a rewarding loyalty program. You also have the chance to earn points with Delta SkyMiles. Make sure you sign up to Expedia’s free One Key™ rewards program to earn OneKeyCash™*, which can be redeemed on future bookings.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.

Changes are generally free within 24 hours of making a booking, but your airline may charge you after that. For further details about altering your reservation, go to your “Trips,” select your flight and click on “Manage Booking.” If you want the flexibility to make changes without extra charges, tick the “No cancel fee” or “Changes included” filter when planning your trip.