$94 Cheap Spirit Airlines flights Philadelphia (PHL) to Austin (AUS)

View $94 flight on Fri, Oct 17, 2025Opens in a new window

$94 Cheap Spirit Airlines flights Philadelphia (PHL) to Austin (AUS)

Prices were available within the past 7 days and start at $94 for one-way flights and $187 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Spirit Airlines
Fri, Oct 3 - Mon, Oct 6
PHL
Philadelphia
AUS
Austin
$187 Roundtrip, just found
$187
Roundtrip
just found
Select Spirit Airlines flight, departing Fri, Oct 3 from Philadelphia to Austin, returning Mon, Oct 6, priced at $187 just found
Spirit Airlines
Thu, Aug 21 - Thu, Aug 28
PHL
Philadelphia
AUS
Austin
$189 Roundtrip, found 11 hours ago
$189
Roundtrip
found 11 hours ago
Select Spirit Airlines flight, departing Thu, Aug 21 from Philadelphia to Austin, returning Thu, Aug 28, priced at $189 found 11 hours ago
Flights from Philadelphia (PHL) to Austin (AUS)
Origin airport
Philadelphia Intl.
Destination airport
Austin-Bergstrom Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Frontier Airlines, JetBlue Airways, Southwest Airlines, Spirit Airlines, United
Popular airline
American Airlines
Distance
1428 mi
Average flight time
2 hours 38 mins

Frequently asked questions

How much is a Spirit Airlines flight from Philadelphia Intl. Airport (PHL) to Austin-Bergstrom Intl. Airport (AUS)?
Scoring cheap one-way Spirit Airlines flights from PHL to AUS from $94 on Expedia is simple --- just filter by "Price (lowest to highest)." Or check out our budget-friendly return fares from $187 for your next exciting adventure.**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 PHL to AUS with Spirit Airlines?
January is one of the least expensive months to jet off to Austin with Spirit Airlines. You could also find fantastic deals on one-way and round-trip fares in December.
What is the cheapest time to book flights from Philadelphia Intl. Airport (PHL) to Austin-Bergstrom Intl. Airport (AUS) with Spirit Airlines?
Look for affordable Spirit Airlines flights from Philadelphia Intl. Airport (PHL) to Austin-Bergstrom Intl. Airport (AUS) one to three months prior to your departure date. 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 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.
Does Spirit Airlines fly nonstop from Philadelphia Intl. Airport (PHL) to Austin-Bergstrom Intl. Airport (AUS)?
Enter your dates, hit search and check the "Nonstop" filter on Expedia to browse any direct flights from PHL to AUS with Spirit Airlines or another airline.
What is the earliest Spirit Airlines flight from PHL to AUS?
To find the earliest departures from PHL to AUS with Spirit Airlines, filter your search by "Morning" and "Early Morning." Choosing an early flight usually means cancellations are less likely.**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 Austin?
Get on a Spirit Airlines flight from Philadelphia Intl. Airport (PHL) to Austin, and you'll most likely touch down at Austin-Bergstrom Intl. Airport (AUS). This is the airline's primary hub in this destination.
Why fly with Spirit Airlines from PHL to AUS?
A rewarding loyalty program and the ability to rack up points through Free Spirit are the start of the reasons to jet off from PHL to AUS with Spirit Airlines. Plus, when you join our One Key™ program, you can earn OneKeyCash™* on top of Spirit Airlines's loyalty program earnings. It's yours to spend on future travel plans.*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 Philadelphia Intl. Airport (PHL) to Austin-Bergstrom Intl. Airport (AUS)?
Changes are often free within 24 hours of making a booking, but your airline may charge you after that. For more details about altering your reservation, check out your "Trips," select your flight and click on "Manage Booking." If you'd like the freedom to make changes without extra charges, apply the "Changes included" or "No cancel fee" filter when planning your next break.

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*Available to One Key members.