A cityscape with a river, a bridge, and high-rise buildings during sunset.

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

View AU$343 flight on Tue, 1 Sept 2026Opens in a new window

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

  • Be in the know

    Get alerts if flight prices drop or rise*

  • Book smarter

    Save up to 35% on select hotels after you book a flight*

  • Earn twice

    Earn your airline miles on top of our rewards
    Sign in

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

Prices were available within the past 7 days for one-way flights and round trip tickets for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Sat, 15 Aug - Sun, 16 Aug
PHL
Philadelphia
AUS
Austin
AU$684 Return, found 1 day ago
AU$684
Return
found 1 day ago
Select American Airlines flight, departing Sat, 15 Aug from Philadelphia to Austin, returning Sun, 16 Aug, priced at AU$684 found 1 day ago
American Airlines
Sat, 15 Aug - Sun, 16 Aug
PHL
Philadelphia
AUS
Austin
AU$698 Return, found 1 day ago
AU$698
Return
found 1 day ago
Select American Airlines flight, departing Sat, 15 Aug from Philadelphia to Austin, returning Sun, 16 Aug, priced at AU$698 found 1 day ago
American Airlines
Sat, 15 Aug - Sun, 16 Aug
PHL
Philadelphia
AUS
Austin
AU$700 Return, found 1 day ago
AU$700
Return
found 1 day ago
Select American Airlines flight, departing Sat, 15 Aug from Philadelphia to Austin, returning Sun, 16 Aug, priced at AU$700 found 1 day ago
Delta
Sat, 15 Aug - Sun, 16 Aug
PHL
Philadelphia
AUS
Austin
AU$712 Return, found 1 day ago
AU$712
Return
found 1 day ago
Select Delta flight, departing Sat, 15 Aug from Philadelphia to Austin, returning Sun, 16 Aug, priced at AU$712 found 1 day ago
American Airlines
Sat, 15 Aug - Sun, 16 Aug
PHL
Philadelphia
AUS
Austin
AU$714 Return, found 1 day ago
AU$714
Return
found 1 day ago
Select American Airlines flight, departing Sat, 15 Aug from Philadelphia to Austin, returning Sun, 16 Aug, priced at AU$714 found 1 day ago
American Airlines
Sat, 15 Aug - Sun, 16 Aug
PHL
Philadelphia
AUS
Austin
AU$720 Return, found 1 day ago
AU$720
Return
found 1 day ago
Select American Airlines flight, departing Sat, 15 Aug from Philadelphia to Austin, returning Sun, 16 Aug, priced at AU$720 found 1 day ago
American Airlines
Sun, 23 Aug - Sun, 30 Aug
PHL
Philadelphia
AUS
Austin
AU$733 Return, found 6 days ago
AU$733
Return
found 6 days ago
Select American Airlines flight, departing Sun, 23 Aug from Philadelphia to Austin, returning Sun, 30 Aug, priced at AU$733 found 6 days ago
American Airlines
Sat, 15 Aug - Sun, 16 Aug
PHL
Philadelphia
AUS
Austin
AU$735 Return, found 1 day ago
AU$735
Return
found 1 day ago
Select American Airlines flight, departing Sat, 15 Aug from Philadelphia to Austin, returning Sun, 16 Aug, priced at AU$735 found 1 day ago
United
Sat, 15 Aug - Sun, 16 Aug
PHL
Philadelphia
AUS
Austin
AU$842 Return, found 1 day ago
AU$842
Return
found 1 day ago
Select United flight, departing Sat, 15 Aug from Philadelphia to Austin, returning Sun, 16 Aug, priced at AU$842 found 1 day ago
Alaska Airlines
Sun, 23 Aug - Sun, 30 Aug
PHL
Philadelphia
AUS
Austin
AU$1,066 Return, found 6 days ago
AU$1,066
Return
found 6 days ago
Select Alaska Airlines flight, departing Sun, 23 Aug from Philadelphia to Austin, returning Sun, 30 Aug, priced at AU$1,066 found 6 days ago

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

December is typically the cheapest month to fly

From AU$176 - AU$522 per traveller.

Frequently asked questions

How much does a flight from Philadelphia, PA (PHL-Philadelphia Intl.) to Austin, TX (AUS-Austin-Bergstrom Intl.) cost?
You can find one-way and return flights from PHL to AUS with Expedia. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see our cheapest fares first, and use the Price Tracking tool to receive alerts when PHL to AUS ticket fares go up or down.
What is the cheapest month to fly from Philadelphia, PA (PHL-Philadelphia Intl.) to Austin, TX (AUS-Austin-Bergstrom Intl.)?
September is typically the cheapest month to fly from Philadelphia International Airport (PHL) to Austin-Bergstrom International Airport (AUS), with average return fares around AU$838. This is about 22% lower than the average price throughout the year. September sees lower prices because it falls after the peak summer travel season, when demand drops and airlines compete for bookings. Other cheap months to fly from Philadelphia International Airport (PHL) to Austin-Bergstrom International Airport (AUS) include August and October.
Which airlines fly direct from Philadelphia, PA (PHL-Philadelphia Intl.) to Austin, TX (AUS-Austin-Bergstrom Intl.)?
There is 1 airline that offers direct flights from Philadelphia Intl. (PHL) to Austin-Bergstrom Intl. (AUS). * American Airlines operates 30 direct flights from Philadelphia Intl. (PHL) to Austin-Bergstrom Intl. (AUS) every week.
What is the cheapest airline that flies from Philadelphia, PA (PHL-Philadelphia Intl.) to Austin, TX (AUS-Austin-Bergstrom Intl.)?
American Airlines is one of the cheapest airlines offering nonstop flights from Philadelphia, PA (PHL-Philadelphia Intl.) to Austin, TX (AUS-Austin-Bergstrom Intl.), with return tickets starting from around AU$1345 for flights that can be booked for departure within the next year. Southwest Airlines offers one of the cheapest connecting flights from Philadelphia, PA (PHL-Philadelphia Intl.) to Austin, TX (AUS-Austin-Bergstrom Intl.) with a layover in Midway Intl. (MDW) starting from around AU$1689. These prices are per adult, economy/coach class. Use Expedia's search tool to compare the prices and schedules of airlines that fly this route to find the best option for your plans and budget.
What is the best airline to fly with from Philadelphia, PA (PHL-Philadelphia Intl.) to Austin, TX (AUS-Austin-Bergstrom Intl.)?
The best airline to fly with from Philadelphia, PA (PHL-Philadelphia Intl.) (PHL) to Austin, TX (AUS-Austin-Bergstrom Intl.) (AUS) will differ from traveller to traveller. If you like to fly early, American Airlines offers early morning flights. If price is the most important factor, Frontier Airlines typically offers the lowest fares. American Airlines offers the most daily flights from Philadelphia, PA (PHL-Philadelphia Intl.) (PHL) to Austin, TX (AUS-Austin-Bergstrom Intl.) (AUS), which is great if flexibility is what you value most. The best carrier for this journey could also be the one you have a loyalty membership with, as flying with that airline or another airline within the same alliance could help you collect points or enjoy lounge access.
What is the earliest flight from Philadelphia, PA (PHL-Philadelphia Intl.) to Austin, TX (AUS-Austin-Bergstrom Intl.)?
The earliest flight from Philadelphia International Airport (PHL) to Austin-Bergstrom International Airport (AUS) typically departs at around 5:00 AM local time, operated by American Airlines. This is a seasonal service active in January and February. An early departure like this can help you make the most of your time at your destination. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What day of the week has the most flights from Philadelphia, PA (PHL-Philadelphia Intl.) to Austin, TX (AUS-Austin-Bergstrom Intl.)?
You'll typically find the most flights from Philadelphia International Airport (PHL) to Austin-Bergstrom International Airport (AUS) on a Thursday, with around 81 flights available. This gives you a good selection of options for your travel plans. Major airlines on this route include American Airlines, Delta Air Lines, and Southwest Airlines. Looking at the week, Thursdays offer notably more flight options compared to other days.
What are the most popular departure times for flights from Philadelphia, PA (PHL-Philadelphia Intl.) to Austin, TX (AUS-Austin-Bergstrom Intl.)?
The most popular departure times for flights from Philadelphia, PA (PHL-Philadelphia Intl.) to Austin, TX (AUS-Austin-Bergstrom Intl.) are in the early morning, from 6am to 9am. This accounts for around 27% of total traffic. Heaps of major carriers, including American Airlines, Southwest Airlines and Delta Air Lines, offer flights during this window. Many travellers prefer this time as it allows for an early start to your journey and an arrival in Austin with plenty of time to settle in or begin your activities.
Can you fly business or first class from Philadelphia, PA (PHL-Philadelphia Intl.) to Austin, TX (AUS-Austin-Bergstrom Intl.)?
You can fly business class or first class between PHL and AUS. Business class service on this route is offered by Frontier Airlines and Delta Air Lines. First class cabins are available on American Airlines, Delta Air Lines, Alaska Airlines, United Airlines, and Spirit Airlines.

Travel information

Origin airport
Philadelphia Intl.
Destination airport
Austin-Bergstrom Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, United
Return price
AU$683
Distance
2285 km
Average flight time
2 hours 50 mins

Book with confidence

Your quick guide to flights from Philadelphia to Austin

Pick up great flights from Philadelphia to Austin

With Expedia, you have your pick of flights a day with 20 airlines covering flights from Philadelphia to Austin. Whether you’re on a business trip, a family holiday or a luxury break, just enter your travel dates, hit search then check out your choice of flights. Select from return, one way or multi-city flights, and use the advance search tool if you want a direct or refundable flight. You can narrow your search to show you just your preferred cabin class and airline, too. It’s all easy. You can book direct flights from Philadelphia to Austin that take around hours.

Find cheap flights from Philadelphia to Austin

From the great flight deals with prices currently ranging from AU$684 to AU$1,066, you can choose to see the cheapest flights first. Generally, you can book the cheapest flights from Philadelphia to Austin around 4 to 6 weeks in advance. If your travel dates are flexible, try to avoid weekends and peak seasons – when you are more likely to grab the lowest prices. Even last minute, there are some impressive deals. The cheapest time to fly to Austin is normally in August.

Reasons to book your flight from Philadelphia to Austin with Expedia

Expedia makes it easy to find, book, and travel, with everything you need all in one place. When you enter your travel details, find fantastic deals just for you on flight tickets from Philadelphia to Austin across all the main airline carriers, so you can save time, dollars, and hassle finding the perfect flight. If you think your plans could change, choose refundable flights so any changes won’t cost you more. Book your flight to Austin right now and, if you join Expedia Rewards, you earn points this time and every time you travel with Expedia.

Your quick guide to flights from Philadelphia to Austin

Explore a world of travel with Expedia

*Available to Expedia members.