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$38+ Cheap flights from Austin to Philadelphia (AUS - PHL)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/2. Fares are subject to change and may not be available on all flights or dates of travel.
AUS — PHL
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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Cheapflights Tip: The best prices from Austin Bergstrom to Philadelphia are usually found in July or August, booked 82 days in advance, depart on a Thursday or Wednesday and return on a Saturday

Cheap flight deals from Austin to Philadelphia

Discover tips and strategies to find the most affordable flight options for your journey from Austin (AUS) to Philadelphia (PHL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated September 11, 2025.

Round-trip from

$129
(Kiwi.com)

One-way from

$38
(Kiwi.com)

Popular in

April

Cheapest in

July

Average price

$321

Good round-trip deal

$215 or less

Good one-way deal

$143 or less
From Austin Bergstrom to Philadelphia
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One-way flight from Austin Bergstrom to Philadelphia
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Highest demand for flights based on searches. 12% potential increase in price ($55 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($8 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Price to beat on a round-trip flight from Austin Bergstrom to Philadelphia.
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Price to beat on a one-way flight from Austin Bergstrom to Philadelphia.
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Find flight deals from Austin to Philadelphia

Cheapest flights from Austin to Philadelphia
Explore the most affordable flight options available from Austin to Philadelphia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.

This Kiwi.com deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/128:48 pmAUS - PHL
1 stop10h 47mMultiple Airlines
Sun 11/167:20 amPHL - AUS
Nonstop3h 50mMultiple Airlines
Deal found 9/10$129
This Kiwi.com deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/27:35 pmAUS - PHL
2 stops44h 09mMultiple Airlines
Mon 10/66:20 amPHL - AUS
Nonstop4h 13mMultiple Airlines
Deal found 9/9$133
This Kiwi.com deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/211:08 amAUS - PHL
Nonstop3h 38mMultiple Airlines
Sun 10/55:15 amPHL - AUS
1 stop7h 17mMultiple Airlines
Deal found 9/9$134
This Kiwi.com deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/1011:03 amAUS - PHL
1 stop12h 22mFrontier
Sun 10/126:10 amPHL - AUS
Nonstop3h 50mFrontier
Deal found 9/9$135
This Kiwi.com deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/87:20 amAUS - PHL
1 stop30h 28mMultiple Airlines
Sun 10/196:10 amPHL - AUS
Nonstop3h 50mMultiple Airlines
Deal found 9/10$136
This Orbitz deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/164:30 pmAUS - PHL
1 stop6h 29mMultiple Airlines
Sun 10/196:10 amPHL - AUS
Nonstop3h 50mMultiple Airlines
Deal found 9/9$137
This Kiwi.com deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/97:20 amAUS - PHL
1 stop15h 39mMultiple Airlines
Sun 10/126:10 amPHL - AUS
Nonstop3h 50mMultiple Airlines
Deal found 9/9$138
This Orbitz deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/257:20 amAUS - PHL
1 stop10h 29mMultiple Airlines
Mon 10/271:12 pmPHL - AUS
Nonstop3h 50mMultiple Airlines
Deal found 9/10$139
This Priceline deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/265:29 pmAUS - PHL
1 stop6h 28mMultiple Airlines
Wed 10/112:00 pmPHL - AUS
1 stop12h 02mMultiple Airlines
Deal found 9/10$140
This Booking.com deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/1610:35 amAUS - PHL
Nonstop3h 32mMultiple Airlines
Fri 10/175:33 amPHL - AUS
1 stop12h 26mMultiple Airlines
Deal found 9/10$142
This Kiwi.com deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/117:20 amAUS - PHL
1 stop10h 29mMultiple Airlines
Sun 10/196:10 amPHL - AUS
Nonstop3h 50mMultiple Airlines
Deal found 9/10$143
This Booking.com deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/265:29 pmAUS - PHL
1 stop6h 28mFrontier
Mon 9/295:15 amPHL - AUS
1 stop12h 19mFrontier
Deal found 9/9$144

Cheapflights Fare Finder

 
Customize your flight search to find flights from Austin to Philadelphia that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 11, 2025.
Use the filters below to find and compare flights from Austin to Philadelphia that are best for you.

Fly from

Austin

Fly to

Philadelphia

Route

Depart

Return

Price

AustinPhiladelphia

AUS - PHL

AUSPHL

Austin Bergstrom

Thu 10/2

7:35 pm-4:52 pm

1 stop20h 17m

Philadelphia

Mon 10/6

5:15 am-4:34 pm

1 stop12h 19m

$146

AustinPhiladelphia

AUS - PHL

AUSPHL

Austin Bergstrom

Fri 10/10

3:10 pm-12:10 am

1 stop8h 00m

Philadelphia

Fri 10/17

7:40 pm-12:10 am

1 stop5h 30m

$182

AustinPhiladelphia

AUS - PHL

AUSPHL

Austin Bergstrom

Fri 10/10

3:10 pm-12:10 am

1 stop8h 00m

Philadelphia

Mon 10/13

5:30 am-10:00 am

1 stop5h 30m

$189

AustinPhiladelphia

AUS - PHL

AUSPHL

Austin Bergstrom

Sun 10/12

9:55 am-2:27 pm

Nonstop3h 32m

Philadelphia

Sun 10/19

6:10 am-9:00 am

Nonstop3h 50m

$226

AustinPhiladelphia

AUS - PHL

AUSPHL

Austin Bergstrom

Sat 10/11

1:40 pm-7:47 pm

1 stop5h 07m

Philadelphia

Tue 10/14

6:18 pm-12:22 am

1 stop7h 04m

$237

AustinPhiladelphia

AUS - PHL

AUSPHL

Austin Bergstrom

Sat 11/8

1:40 pm-7:47 pm

1 stop5h 07m

Philadelphia

Tue 11/11

6:07 pm-12:35 am

1 stop7h 28m

$237

AustinPhiladelphia

AUS - PHL

AUSPHL

Austin Bergstrom

Fri 10/17

6:27 pm-12:52 am

1 stop5h 25m

Philadelphia

Sat 10/18

5:20 pm-10:02 pm

1 stop5h 42m

$237

AustinPhiladelphia

AUS - PHL

AUSPHL

Austin Bergstrom

Thu 10/2

8:00 am-4:10 pm

1 stop7h 10m

Philadelphia

Sat 10/4

6:39 pm-12:13 am

1 stop6h 34m

$237

AustinPhiladelphia

AUS - PHL

AUSPHL

Austin Bergstrom

Tue 10/14

6:27 pm-12:52 am

1 stop5h 25m

Philadelphia

Sat 10/18

12:19 pm-5:22 pm

1 stop6h 03m

$237

AustinPhiladelphia

AUS - PHL

AUSPHL

Austin Bergstrom

Tue 10/14

4:00 pm-11:05 pm

1 stop6h 05m

Philadelphia

Tue 10/21

12:19 pm-5:22 pm

1 stop6h 03m

$237

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/10

Showing 1-10 of 19 results
1
2

The best insider tips for Austin to Philadelphia flights

Snippets provided in this section are AI-generated based on a summarization of Cheapflights-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
Cheapflights partnered with top experts to bring you the best recommendations for your Austin to Philadelphia trip
Airports
AUS

Expect long lines at AUS due to high traffic. Arrive early to avoid missing your flight, especially during the morning rush.

Read more about AUSby Ramsey Qubein
PHL

For quick access to downtown, take SEPTA from PHL. It's efficient, with stations near Terminals A, B, C/D, and E/F.

Read more about PHLby Mark Chesnut
Our travel experts
Mark Chesnut

Mark Chesnut

Expert on PHL

Mark Chesnut

Mark Chesnut

Mark Chesnut is a travel writer and public speaker with more than 30 years of experience. The 2019 winner of the NLGJA Excellence in Travel Writing Award, Mark is the author of the book “Prepare for Departure” and has covered air travel for multiple top consumer and trade media outlets.

Read more
Ramsey Qubein

Ramsey Qubein

Expert on AUS

Ramsey Qubein

Ramsey Qubein

An avid traveler and aviation expert who has visited 173 countries, all 50 states and seven continents, Ramsey Qubein flies nearly 400,000 miles a year. As a North Carolina-based freelance journalist for publications including Conde Nast Traveler, Forbes, USA Today and Bloomberg among others, he explores the latest trends in aviation, hospitality, cruises and business.

Read more

Best time to book a flight from Austin to Philadelphia

Have a flexible travel schedule? Discover the best time to fly to Philadelphia from Austin with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Austin to Philadelphia

How far ahead should I book a flight from Austin to Philadelphia?

Use this chart to determine the optimal time to book a round-trip flight from Austin to Philadelphia. Price data was last updated on August 29, 2025.

To ensure you get the cheapest price possible for a flight from Austin to Philadelphia, you should look to book at least 82 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from Austin to Philadelphia?

Currently, August is the cheapest month in which you can book a flight from Austin to Philadelphia (average of $236). Flying from Austin to Philadelphia in March is currently the most expensive (average of $295). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from AUS to PHL?

Find hourly flight availability from Austin to Philadelphia. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 11, 2025.

One of the essential ways to save on airfare from Austin to Philadelphia is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the evening could potentially save you up to 84% on airfare.

What is the cheapest day to fly from Austin to Philadelphia?

Use this chart to determine the cheapest time to fly round-trip from Austin to Philadelphia. Price data was last updated on September 7, 2025.

Travelers seeking maximum savings on their Austin to Philadelphia flight should consider departing on Saturday evenings when fares are most often at their lowest. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing Philadelphia

Get insights into the airlines that provide service to Philadelphia. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Philadelphia. Reviews last updated September 11, 2025.
Read through reviews of airlines operating flights from Austin to Philadelphia, such as Southwest, Delta, and United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,248 reviews

Crew

8.6

Boarding

8.1

Entertainment

7.5

Overall

8.0

Food

7.0

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Southwest
8.0
Very good
4,248 reviews
Southwest
8.0
Very good
4,248 reviews

Crew

8.6

Boarding

8.1

Entertainment

7.5

Overall

8.0

Food

7.0

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Delta
8.0
Very good
7,960 reviews
Southwest
8.0
Very good
4,248 reviews

Crew

8.6

Boarding

8.1

Entertainment

7.5

Overall

8.0

Food

7.0

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
United Airlines
7.4
Good
8,937 reviews
Southwest
8.0
Very good
4,248 reviews

Crew

8.6

Boarding

8.1

Entertainment

7.5

Overall

8.0

Food

7.0

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,248 reviews

Crew

8.6

Boarding

8.1

Entertainment

7.5

Overall

8.0

Food

7.0

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Frontier
5.8
Fair
3,177 reviews
Southwest
8.0
Very good
4,248 reviews

Crew

8.6

Boarding

8.1

Entertainment

7.5

Overall

8.0

Food

7.0

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

Related info for your journey

Find useful and relevant information for your journey from Austin to Philadelphia. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airports do I use to fly from Austin to Philadelphia?

    If you book a flight from Austin to Philadelphia, you will be flying from Austin Bergstrom to Philadelphia. Flights to Philadelphia (PHL) from Austin Bergstrom (AUS) take 3h 21m for a nonstop flight. There are 7 flights from Austin Bergstrom to Philadelphia per day from 6 airlines.

  • How popular is this Austin to Philadelphia flight route?

    Within the past month, 16 users have taken a look at flights from Austin Bergstrom to Philadelphia.

  • How long is the flight from Austin to Philadelphia?

    Departing from Austin to Philadelphia will take you 5h 07m. The distance between Austin and Philadelphia is about 1428 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines flying from Austin to Philadelphia round-trip?

    According to our current data, Frontier ($108), Spirit Airlines ($127), and Southwest ($158) offers the cheapest pricing from Austin to Philadelphia. Frontier is currently priced 72% below the average price you’ll pay for this route.

  • What are the cheapest airlines to fly from Austin to Philadelphia one-way?

    One-way options have recently been found by users for as low as $39 on Frontier. Other airlines that offer cheap prices include Spirit Airlines from $79 and Southwest from $88 one-way.

  • What are the most reliable airlines from Austin to Philadelphia?

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Austin to Philadelphia on time: Aer Lingus (78%), Iberia (66%), American Airlines (66%).

  • What are the cheapest flights from Austin to Philadelphia?

    Looking at all options, your cheapest flight can be booked for $81. While the most popular route (Austin Bergstrom - Philadelphia) can be booked for $129 on average, our data indicates $1,745 when flying from Austin to Philadelphia.

  • Can I find deals for flights from Austin to Philadelphia that include hotel bookings?

    Yes. In addition to deals on Austin to Philadelphia flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Austin to Philadelphia?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Austin to Philadelphia.

  • Can I find deals for business class flights from Austin to Philadelphia?

    Yes. Cheapflights offers flight deals from Austin to Philadelphia by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Austin to Philadelphia?

    Currently, August is the cheapest month in which you can book a flight from Austin to Philadelphia (average of $236). Flying from Austin to Philadelphia in March is currently the most expensive (average of $295). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Philadelphia?

Book flights to Philadelphia if you plan to visit one of these locations
Vineland
Wildwood
King of Prussia
Pottstown
Reading
Dewey Beach
Ephrata
Camden
Ocean City
Cherry Hill
Dover
Elkton
Essington
Willow Grove
Newark
Millville
Chester
Exton
Havre de Grace
Plymouth Meeting

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Austin to Philadelphia

See prices for flight routes from nearby airports that may be better suited for you.
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Top 6 airlines flying from Austin to Philadelphia

Discover the top 6 airlines that operate flights from Austin to Philadelphia. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$108Average$209FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$127Average$390FlexibilityNo cancel feeOn-time65%
SouthwestCheapest$158Average$413FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$185Average$427FlexibilityNo cancel feeOn-time71%
DeltaCheapest$236Average$334FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$272Average$524FlexibilityNo cancel feeOn-time69%

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