$97 Cheap Southwest Airlines flights Las Vegas (LAS) to Pittsburgh (PIT)

Use the "Price (lowest to highest)" filter on Expedia to find cheap Southwest Airlines return flights from $159 from LAS to PIT. Affordable one-way options from $97 are also on offer.**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.

Look for affordable Southwest Airlines flights from Harry Reid Intl. Airport (LAS) to Pittsburgh Intl. Airport (PIT) one to three months prior to 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. Regardless of fare class and itinerary, the best day to book a domestic flight is generally Sunday and the most expensive 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.

The earliest Southwest Airlines flight from LAS to PIT departs at 8:25AM UTC-8, arriving at 3:30PM UTC-5. If you prefer to jet off later in the day, the last Southwest Airlines flight leaves LAS at 3:55PM UTC-8 and touches down at PIT at 11:00PM UTC-5. Flying before noon is often a smart option as morning and mid-morning flights tend to experience fewer 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.