$118 Cheap Southwest Airlines flights Indianapolis (IND) to Philadelphia (PHL)

Finding cheap one-way Southwest Airlines flights from IND to PHL from $118 on Expedia is easy --- just filter by "Price (lowest to highest)." Or check out our budget-friendly return fares from $207 for your next exciting vacation.**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.

Search for affordable Southwest Airlines flights from Indianapolis Intl. Airport (IND) to Philadelphia Intl. Airport (PHL) one to three months ahead of 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 type and itinerary, the best day of the week to book a domestic flight is generally 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.

Search Southwest Airlines's earliest flights from IND to PHL by using the "Early Morning" and "Morning" filters. Not only will you get to where you're going sooner, early departures are also 20% less likely to be canceled.**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.