$57 Cheap Flights from Philadelphia (PHL) to Austin (AUS)

View $57 flight on Tue, Nov 18, 2025Opens in a new window

Popular airlines from Philadelphia Intl. Airport (PHL) to Austin-Bergstrom Intl. Airport (AUS)

Cheap Flights from Philadelphia to Austin (PHL-AUS)

Prices were available within the past 7 days and start at $57 for one-way flights and $114 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Spirit Airlines
Sat, Dec 6 - Tue, Dec 9
PHL
Philadelphia
AUS
Austin
$114 Roundtrip, just found
$114
Roundtrip
just found
Select Spirit Airlines flight, departing Sat, Dec 6 from Philadelphia to Austin, returning Tue, Dec 9, priced at $114 just found
Spirit Airlines
Tue, Dec 9 - Fri, Dec 12
PHL
Philadelphia
AUS
Austin
$126 Roundtrip, just found
$126
Roundtrip
just found
Select Spirit Airlines flight, departing Tue, Dec 9 from Philadelphia to Austin, returning Fri, Dec 12, priced at $126 just found
Frontier Airlines
Sun, Nov 16 - Mon, Nov 17
PHL
Philadelphia
AUS
Austin
$127 Roundtrip, found 5 hours ago
$127
Roundtrip
found 5 hours ago
Select Frontier Airlines flight, departing Sun, Nov 16 from Philadelphia to Austin, returning Mon, Nov 17, priced at $127 found 5 hours ago
Frontier Airlines
Sat, Dec 6 - Tue, Dec 9
PHL
Philadelphia
AUS
Austin
$128 Roundtrip, just found
$128
Roundtrip
just found
Select Frontier Airlines flight, departing Sat, Dec 6 from Philadelphia to Austin, returning Tue, Dec 9, priced at $128 just found
Frontier Airlines
Mon, Jan 12 - Thu, Jan 15
PHL
Philadelphia
AUS
Austin
$130 Roundtrip, just found
$130
Roundtrip
just found
Select Frontier Airlines flight, departing Mon, Jan 12 from Philadelphia to Austin, returning Thu, Jan 15, priced at $130 just found
Frontier Airlines
Sun, Dec 7 - Wed, Dec 10
PHL
Philadelphia
AUS
Austin
$132 Roundtrip, just found
$132
Roundtrip
just found
Select Frontier Airlines flight, departing Sun, Dec 7 from Philadelphia to Austin, returning Wed, Dec 10, priced at $132 just found
Frontier Airlines
Fri, Jan 23 - Mon, Jan 26
PHL
Philadelphia
AUS
Austin
$134 Roundtrip, just found
$134
Roundtrip
just found
Select Frontier Airlines flight, departing Fri, Jan 23 from Philadelphia to Austin, returning Mon, Jan 26, priced at $134 just found
Southwest Airlines
Sun, Dec 7 - Wed, Dec 10
PHL
Philadelphia
AUS
Austin
$157 Roundtrip, just found
$157
Roundtrip
just found
Select Southwest Airlines flight, departing Sun, Dec 7 from Philadelphia to Austin, returning Wed, Dec 10, priced at $157 just found
Delta
Wed, Dec 10 - Sat, Dec 13
PHL
Philadelphia
AUS
Austin
$217 Roundtrip, just found
$217
Roundtrip
just found
Select Delta flight, departing Wed, Dec 10 from Philadelphia to Austin, returning Sat, Dec 13, priced at $217 just found
JetBlue Airways
Sat, Dec 13 - Wed, Dec 31
PHL
Philadelphia
AUS
Austin
$259 Roundtrip, found 1 day ago
$259
Roundtrip
found 1 day ago
Select JetBlue Airways flight, departing Sat, Dec 13 from Philadelphia to Austin, returning Wed, Dec 31, priced at $259 found 1 day ago

Find the cheapest month to fly from Philadelphia (PHL) to Austin (AUS)

September is typically the cheapest month to fly

From $110 - $158 per traveler.

Alternative airports near Austin

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Austin-Bergstrom Intl. AUS. Cheapest and Closest option available. Average driving time to city center is 11 minutes. Flights from $179
AUS
Austin-Bergstrom Intl.
CheapestClosest
Average driving time to city center11 min
Flights from $179

Frequently asked questions

How much does a flight from Philadelphia Intl. Airport (PHL) to Austin-Bergstrom Intl. Airport (AUS) cost?
Grab a cheap one-way flight from $57 or cheap return flight from $114 from Philadelphia Intl. Airport (PHL) to Austin-Bergstrom Intl. Airport (AUS) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from Philadelphia Intl. Airport (PHL) to Austin-Bergstrom Intl. Airport (AUS)?
Traveling in December may help you find better deals, as it's the cheapest month for flights between PHL and AUS. You'll often find the lowest fares during the off-season.
Which airlines fly direct from Philadelphia Intl. Airport (PHL) to Austin-Bergstrom Intl. Airport (AUS)?
You can fly directly from Philadelphia Intl. Airport (PHL) to Austin-Bergstrom Intl. Airport (AUS) on an American Airlines flight.
How many flights per day from Philadelphia Intl. Airport (PHL) to Austin-Bergstrom Intl. Airport (AUS)?
On average, Philadelphia Intl. Airport (PHL) only has 1 nonstop flight to Austin-Bergstrom Intl. Airport (AUS) every day. For more choices, try Expedia's easy-to-use filters. Enter your travel dates, then select "1 Stop" or "2+ Stops" to discover flights offering layovers.
What are the most popular departure times for flights from Philadelphia Intl. Airport (PHL) to Austin-Bergstrom Intl. Airport (AUS)?
The 10 AM departures from PHL to AUS are typically the busiest. These flights can come with a higher price due to their popularity. If you're looking to save, book during off-peak hours.
What day of the week has the most flights from PHL to AUS?
If you fly on a Friday, you'll get the largest range of options for flights from Philadelphia Intl. Airport (PHL) to Austin-Bergstrom Intl. Airport (AUS).
What is the earliest flight from Philadelphia Intl. Airport (PHL) to Austin-Bergstrom Intl. Airport (AUS)?
Take the earliest flight at around 9:30AM UTC-5, departing from Philadelphia Intl. Airport (PHL). You'll be flying for roughly 4h 9m, reaching Austin-Bergstrom Intl. Airport (AUS) at approximately 12:39PM UTC-6.
How long does it take to fly from Philadelphia Intl. Airport (PHL) to Austin-Bergstrom Intl. Airport (AUS)?
The average flight duration from PHL to AUS is 4 hours and 16 minutes, covering a distance of 1,450 mi.
What airline has the least delays from PHL to AUS?
Frontier Airlines has the best performance for on-time direct flights from Philadelphia Intl. Airport (PHL) to Austin-Bergstrom Intl. Airport (AUS), with an on-time score of 85%. Use the Expedia App to view your journey status before you head off and get real-time updates about any trip changes.
What is the best time to fly from Philadelphia Intl. Airport (PHL) to Austin-Bergstrom Intl. Airport (AUS)?
To arrive at Austin-Bergstrom Intl. Airport (AUS) on schedule, pick a flight that takes off from Philadelphia Intl. Airport (PHL) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this hour.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports do you fly into for Austin from Philadelphia Intl. Airport (PHL)?
If you're boarding a direct flight from Philadelphia Intl. Airport (PHL) to Austin, Austin-Bergstrom Intl. Airport (AUS) is the only airport you can touch down at.
Is it cheaper to buy a plane ticket from Philadelphia Intl. Airport (PHL) to Austin-Bergstrom Intl. Airport (AUS) last-minute?
Waiting until just before your trip to book a ticket from PHL to AUS often results in higher prices. While it's possible to find some last-minute offers, there's no guarantee. Be flexible with your travel plans for the best chance of landing a bargain.
Is it cheaper to book a PHL to AUS flight and hotel package?
You'll generally save money by booking a PHL to AUS flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it's easy to manage everything in one convenient place. After selecting your preferred accommodations and flights, consider adding extras including tours, activities and car rentals.
Can I cancel or change the date of my flight from Philadelphia Intl. Airport (PHL) to Austin-Bergstrom Intl. Airport (AUS)?
If you reserved your PHL to AUS flight within the last 24 hours, you may be able to cancel or modify it without fees. Depending on the airline and the type of fare you purchased, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, go to our Customer Service portal for more information.

Travel information

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
Roundtrip price
$114
Distance
1428 mi
Average flight time
4 hours 20 mins

Book with confidence

Philadelphia to Austin Flights

The cheapest times to fly from Philadelphia to Austin

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Philadelphia to Austin are during the month of December. You can find some of the cheapest flights from Philadelphia to Austin with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Philadelphia to Austin

Sunday is one of the best days to book for cheap flights from Philadelphia to Austin: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Philadelphia to Austin

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Philadelphia to Austin in 2025. You can also book with separate airlines for your outbound and return journeys, from $57 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Philadelphia to Austin flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Philadelphia to Austin airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Philadelphia to Austin Flights

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*Available to One Key members.