HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Austin

$94+ Cheap flights from Philadelphia to Austin (PHL - AUS)

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 8/21. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — AUS
Aug 3 — Aug 101
Sun 8/3
Sun 8/10
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Philadelphia to Austin with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheapflights Tip: The best prices from Philadelphia to Austin Bergstrom are usually found in July or August, booked 75 days in advance, depart on a Saturday or Tuesday and return on a Thursday

Cheap flight deals from Philadelphia to Austin

Discover tips and strategies to find the most affordable flight options for your journey from Philadelphia (PHL) to Austin (AUS). 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 July 29, 2025.

Round-trip from

$145
(Booking.com)

One-way from

$94
(Southwest)

Popular in

March

Cheapest in

July

Average price

$263

Good round-trip deal

$184 or less

Good one-way deal

$119 or less
From Philadelphia to Austin Bergstrom
Search Deals
One-way flight from Philadelphia to Austin Bergstrom
Search Deals
Highest demand for flights based on searches. 15% potential increase in price ($72 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($9 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2025
Search Deals
Price to beat on a round-trip flight from Philadelphia to Austin Bergstrom.
Search Deals
Price to beat on a one-way flight from Philadelphia to Austin Bergstrom.
Search Deals

Find flight deals from Philadelphia to Austin

Cheapest flights from Philadelphia to Austin
Explore the most affordable flight options available from Philadelphia to Austin. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 29, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 7/29. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/247:50 amPHL - AUS
Nonstop3h 42mFrontier
Sun 8/3111:27 amAUS - PHL
Nonstop3h 38mFrontier
Deal found 7/29$146
This American Airlines deal was found by Cheapflights users on 7/27. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/307:00 amPHL - AUS
Nonstop3h 37mAmerican Airlines
Thu 10/27:00 amAUS - PHL
Nonstop3h 28mAmerican Airlines
Deal found 7/27$149
This CheapOair deal was found by Cheapflights users on 7/28. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/257:00 amPHL - AUS
1 stop5h 36mMultiple Airlines
Mon 9/111:27 amAUS - PHL
Nonstop3h 38mMultiple Airlines
Deal found 7/28$154
This Southwest deal was found by Cheapflights users on 7/28. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/286:10 pmPHL - AUS
1 stop6h 15mSouthwest
Sun 8/319:45 amAUS - PHL
1 stop6h 50mSouthwest
Deal found 7/28$168
This CheapOair deal was found by Cheapflights users on 7/28. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/237:32 pmPHL - AUS
1 stop13h 37mSpirit Airlines
Mon 10/2710:44 amAUS - PHL
1 stop13h 02mSpirit Airlines
Deal found 7/28$179

Cheapflights Fare Finder

 
Customize your flight search to find flights from Philadelphia to Austin 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 July 29, 2025.
Use the filters below to find and compare flights from Philadelphia to Austin that are best for you.

Fly from

Philadelphia

Fly to

Austin

Route

Depart

Return

Price

PhiladelphiaAustin

PHL - AUS

PHLAUS

Philadelphia

Thu 8/28

7:50 am-10:32 am

Nonstop3h 42m

Austin Bergstrom

Mon 9/1

11:27 am-4:05 pm

Nonstop3h 38m

$145

PhiladelphiaAustin

PHL - AUS

PHLAUS

Philadelphia

Sat 8/30

7:00 am-9:37 am

Nonstop3h 37m

Austin Bergstrom

Thu 10/2

7:00 am-11:28 am

Nonstop3h 28m

$149

PhiladelphiaAustin

PHL - AUS

PHLAUS

Philadelphia

Mon 8/25

7:00 am-11:36 am

1 stop5h 36m

Austin Bergstrom

Mon 9/1

11:27 am-4:05 pm

Nonstop3h 38m

$154

PhiladelphiaAustin

PHL - AUS

PHLAUS

Philadelphia

Thu 8/28

6:10 pm-11:25 pm

1 stop6h 15m

Austin Bergstrom

Mon 9/1

6:05 am-1:15 pm

1 stop6h 10m

$168

PhiladelphiaAustin

PHL - AUS

PHLAUS

Philadelphia

Thu 10/23

10:51 am-11:56 pm

1 stop14h 05m

Austin Bergstrom

Sat 10/25

1:27 pm-11:59 pm

1 stop9h 32m

$179

PhiladelphiaAustin

PHL - AUS

PHLAUS

Philadelphia

Thu 8/21

6:10 pm-11:25 pm

1 stop6h 15m

$94

PhiladelphiaAustin

PHL - AUS

PHLAUS

Philadelphia

Thu 8/14

3:47 pm-6:29 pm

Nonstop3h 42m

$96

PhiladelphiaAustin

PHL - AUS

PHLAUS

Philadelphia

Sun 8/17

7:00 am-11:36 am

1 stop5h 36m

$97

PhiladelphiaAustin

PHL - AUS

PHLAUS

Philadelphia

Tue 8/19

8:10 am-10:48 am

Nonstop3h 38m

$179

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/27

Best time to book a flight from Philadelphia to Austin

Have a flexible travel schedule? Discover the best time to fly to Austin from Philadelphia 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 Philadelphia to Austin

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

Use this chart to determine the optimal time to book a round-trip flight from Philadelphia to Austin. Price data was last updated on July 25, 2025.

To ensure you get the cheapest price possible for a flight from Philadelphia to Austin, you should look to book at least 75 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 Philadelphia to Austin?

Currently, January is the cheapest month in which you can book a flight from Philadelphia to Austin (average of $286). Flying from Philadelphia to Austin in March is currently the most expensive (average of $362). 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 PHL to AUS?

Find hourly flight availability from Philadelphia to Austin. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 29, 2025.

When flying from Philadelphia to Austin, the time of day you fly usually plays a role in the price. Save by searching for a flight in the afternoon, which can drop the price by up to 16% versus a flight in the evening.

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

Use this chart to determine the cheapest time to fly round-trip from Philadelphia to Austin. Price data was last updated on July 27, 2025.

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

Weekly flight availability from Philadelphia to Austin

Explore weekly flight availability from Philadelphia to Austin. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated July 29, 2025.

The most flights from PHL to AUS are scheduled on a Monday (6 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (1 on average).

What’s the top layover airport for flights from Philadelphia to Austin?

Share of 1-stop round-trip flights from Philadelphia to Austin chosen by Cheapflights users in the past 12 months, using the same layover each way.

Nashville (BNA) – chosen by Cheapflights users on 50% of 1-stop itineraries from Philadelphia to Austin on Cheapflights.

What’s the cheapest layover airport for flights from Philadelphia to Austin?

Average round-trip fare for 1-stop flights from Philadelphia to Austin, chosen by Cheapflights users in the past 12 months, with the same layover each way.

Las Vegas (LAS) is the most affordable 1-stop option, with an average round-trip price of $284.

What’s the fastest layover option from Philadelphia to Austin?

Shortest average travel time for 1-stop one-way flights from Philadelphia to Austin, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.

Flights via Nashville (BNA) have the shortest average one-way travel time for 1-stop routes: 3h 50m.

Which airport typically offers the quickest layover for flights from Philadelphia to Austin?

Average layover duration for 1-stop one-way flights from Philadelphia to Austin, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via Nashville (BNA) offer the fastest connection on this route, with an average layover time of 1h 03m.

Reviews of airlines servicing Austin

Get insights into the airlines that provide service to Austin. 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 Austin. Reviews last updated July 29, 2025.
See what other customers who have flown with Southwest, American Airlines, and Spirit Airlines from Philadelphia to Austin have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,238 reviews

Food

7.0

Crew

8.6

Boarding

8.1

Overall

8.0

Entertainment

7.5

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
Southwest
8.0
Very good
4,238 reviews
Southwest
8.0
Very good
4,238 reviews

Food

7.0

Crew

8.6

Boarding

8.1

Overall

8.0

Entertainment

7.5

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,238 reviews

Food

7.0

Crew

8.6

Boarding

8.1

Overall

8.0

Entertainment

7.5

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
Spirit Airlines
6.3
Okay
8,040 reviews
Southwest
8.0
Very good
4,238 reviews

Food

7.0

Crew

8.6

Boarding

8.1

Overall

8.0

Entertainment

7.5

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
Frontier
5.9
Fair
3,238 reviews
Southwest
8.0
Very good
4,238 reviews

Food

7.0

Crew

8.6

Boarding

8.1

Overall

8.0

Entertainment

7.5

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.

Related info for your journey

Find useful and relevant information for your journey from Philadelphia to Austin. 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 Philadelphia to Austin?

    You will need to book a flight from Philadelphia to Austin Bergstrom if you want to fly from Philadelphia to Austin. At least 6 different airlines have flights from Philadelphia (PHL) to Austin Bergstrom (AUS) on a regular basis. There are 3 flights to Austin from the Philadelphia airport per day. If you manage to book one that is nonstop, then you can expect the flight time from PHL to AUS to be around 3h 37m.

  • How popular is this Philadelphia to Austin flight route?

    The Philadelphia to Austin Bergstrom flight path was viewed by 18 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

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

    Flying on Frontier is currently your cheapest option to Austin, with prices starting at $145. Additional round-trip tickets that might be worth considering are offered by American Airlines and Southwest, with the lowest prices starting at $149 and $168, respectively. Users have found that Frontier is 63% cheaper than the other options available to this destination.

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

    One-way options have recently been found by users for as low as $94 on Southwest. Other airlines that offer cheap prices include Frontier from $96 and Spirit Airlines from $97 one-way.

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

    Consider American Airlines (75%), Qatar Airways (70%) or Iberia (56%) when booking your flight. These represent the most reliable airlines when flying from Philadelphia to Austin.

  • What are the cheapest flights from Philadelphia to Austin?

    The cheapest flight price from Philadelphia to Austin is $81. On average you can expect to pay $207. The most popular route, (Philadelphia - Austin Bergstrom), can usually be booked for $154.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Philadelphia to Austin 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 Philadelphia to Austin?

    Currently, January is the cheapest month in which you can book a flight from Philadelphia to Austin (average of $286). Flying from Philadelphia to Austin in March is currently the most expensive (average of $362). 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 Austin?

Book flights to Austin if you plan to visit one of these locations
San Marcos
Georgetown
Fredericksburg
Pflugerville
Dripping Springs
Cedar Park
Canyon Lake
Round Rock
Seguin
Horseshoe Bay

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Philadelphia to Austin

See prices for flight routes from nearby airports that may be better suited for you.
LaGuardia to Dallas/Fort Worth flights
Newark to Dallas/Fort Worth flights
John F Kennedy Intl to Dallas/Fort Worth flights
Dulles Intl to Dallas/Fort Worth flights
John F Kennedy Intl to Hobby flights
Newark to Hobby flights
John F Kennedy Intl to Austin flights
Dulles Intl to Hobby flights
LaGuardia to Hobby flights
Reagan-National to Hobby flights
Reagan-National to Dallas/Fort Worth flights
Newark to Austin flights
Newark to George Bush Intcntl flights
John F Kennedy Intl to George Bush Intcntl flights
LaGuardia to Austin flights
Philadelphia to Dallas/Fort Worth flights
Dulles Intl to Austin flights
Dulles Intl to George Bush Intcntl flights
LaGuardia to George Bush Intcntl flights
Reagan-National to George Bush Intcntl flights
Philadelphia to Hobby flights
Philadelphia to George Bush Intcntl flights
LaGuardia to Love Field flights
Philadelphia to Love Field flights
Reagan-National to Austin flights
Dulles Intl to Love Field flights
Newark to San Antonio flights
Pittsburgh to Dallas/Fort Worth flights
Reagan-National to Love Field flights
John F Kennedy Intl to San Antonio flights
Newark to Love Field flights
Pittsburgh to Hobby flights
Dulles Intl to San Antonio flights
LaGuardia to San Antonio flights
Pittsburgh to Love Field flights
Pittsburgh to George Bush Intcntl flights
Philadelphia to San Antonio flights
Reagan-National to San Antonio flights
John F Kennedy Intl to Love Field flights
Pittsburgh to San Antonio flights
Pittsburgh to Austin flights
Harrisburg to Dallas/Fort Worth flights
Allentown to Dallas/Fort Worth flights
John F Kennedy Intl to El Paso flights
Harrisburg to Hobby flights
Harrisburg to Austin flights
Philadelphia to El Paso flights
Newark to El Paso flights
Dulles Intl to El Paso flights

Top 6 airlines flying from Philadelphia to Austin

Discover the top 6 airlines that operate flights from Philadelphia to Austin. 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 July 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$127Average$204FlexibilityNo cancel feeOn-time62%
SouthwestCheapest$158Average$448FlexibilityNo cancel feeOn-time63%
Spirit AirlinesCheapest$180Average$263FlexibilityNo cancel feeOn-time65%
American AirlinesCheapest$226Average$448FlexibilityNo cancel feeOn-time71%
DeltaCheapest$236Average$372FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$268Average$493FlexibilityNo cancel feeOn-time69%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.