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$72+ 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 10/5. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — AUS
Oct 9 — Oct 161
Thu 10/9
Thu 10/16
1 adult, Economy
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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 September 9, 2025.

Round-trip from

$146
(Frontier)

One-way from

$72
(Booking.com)

Popular in

March

Cheapest in

July

Average price

$312

Good round-trip deal

$188 or less

Good one-way deal

$133 or less
From Philadelphia to Austin Bergstrom
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One-way flight from Philadelphia to Austin Bergstrom
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Highest demand for flights based on searches. 15% potential increase in price ($74 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($10 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 Philadelphia to Austin Bergstrom.
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Price to beat on a one-way flight from Philadelphia to Austin Bergstrom.
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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 September 9, 2025.

This Frontier deal was found by Cheapflights users on 9/6. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/137:20 amPHL - AUS
Nonstop3h 50mFrontier
Mon 11/174:57 pmAUS - PHL
Nonstop3h 32mFrontier
Deal found 9/6$146
This Gotogate deal was found by Cheapflights users on 9/7. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/27:00 amPHL - AUS
Nonstop4h 13mFrontier
Mon 10/610:23 amAUS - PHL
Nonstop3h 38mFrontier
Deal found 9/7$147
This Cheapflightsfares deal was found by Cheapflights users on 9/7. 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.
Thu 11/137:20 amPHL - AUS
Nonstop3h 50mFrontier
Sun 11/1611:05 amAUS - PHL
Nonstop3h 32mFrontier
Deal found 9/7$149
This Priceline deal was found by Cheapflights users on 9/8. 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.
Sun 11/27:20 amPHL - AUS
Nonstop3h 50mFrontier
Thu 11/65:56 pmAUS - PHL
1 stop5h 58mFrontier
Deal found 9/8$150
This Frontier deal was found by Cheapflights users on 9/8. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/97:20 amPHL - AUS
Nonstop3h 50mFrontier
Mon 11/174:57 pmAUS - PHL
Nonstop3h 32mFrontier
Deal found 9/8$151
This Frontier deal was found by Cheapflights users on 9/8. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/2611:28 amPHL - AUS
Nonstop3h 50mFrontier
Mon 10/274:57 pmAUS - PHL
Nonstop3h 32mFrontier
Deal found 9/8$152
This Frontier deal was found by Cheapflights users on 9/8. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/305:15 amPHL - AUS
1 stop7h 22mFrontier
Mon 11/36:12 pmAUS - PHL
1 stop6h 12mFrontier
Deal found 9/8$155
This Booking.com deal was found by Cheapflights users on 9/8. 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.
Mon 9/155:15 amPHL - AUS
1 stop12h 19mFrontier
Mon 9/225:29 pmAUS - PHL
1 stop6h 28mFrontier
Deal found 9/8$156
This Booking.com deal was found by Cheapflights users on 9/7. 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 10/36:45 amPHL - AUS
1 stop17h 47mFrontier
Sun 10/57:35 pmAUS - PHL
1 stop20h 17mFrontier
Deal found 9/7$157

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 September 9, 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

Sat 11/1

5:10 pm-10:05 pm

1 stop5h 55m

Austin Bergstrom

Tue 11/4

5:30 am-11:25 am

1 stop4h 55m

$189

PhiladelphiaAustin

PHL - AUS

PHLAUS

Philadelphia

Sun 10/12

8:35 pm-1:25 am

1 stop5h 50m

Austin Bergstrom

Mon 10/13

5:05 am-10:50 am

1 stop4h 45m

$189

PhiladelphiaAustin

PHL - AUS

PHLAUS

Philadelphia

Sat 11/8

2:20 pm-10:15 pm

1 stop8h 55m

Austin Bergstrom

Sat 11/15

2:55 pm-8:50 pm

1 stop4h 55m

$189

PhiladelphiaAustin

PHL - AUS

PHLAUS

Philadelphia

Fri 11/14

5:25 pm-11:20 pm

1 stop6h 55m

Austin Bergstrom

Tue 11/18

5:30 am-11:25 am

1 stop4h 55m

$189

PhiladelphiaAustin

PHL - AUS

PHLAUS

Philadelphia

Tue 12/2

2:45 pm-7:20 pm

1 stop5h 35m

Austin Bergstrom

Sat 12/6

2:20 pm-9:50 pm

1 stop6h 30m

$189

PhiladelphiaAustin

PHL - AUS

PHLAUS

Philadelphia

Wed 10/1

10:30 am-7:30 pm

2 stops10h 00m

Austin Bergstrom

Mon 10/6

5:05 am-10:50 am

1 stop4h 45m

$204

PhiladelphiaAustin

PHL - AUS

PHLAUS

Philadelphia

Mon 11/3

9:46 am-2:50 pm

1 stop6h 04m

Austin Bergstrom

Tue 11/11

6:34 pm-12:51 am

1 stop5h 17m

$237

PhiladelphiaAustin

PHL - AUS

PHLAUS

Philadelphia

Fri 11/7

7:25 pm-12:22 am

1 stop5h 57m

Austin Bergstrom

Tue 11/18

12:20 pm-6:20 pm

1 stop5h 00m

$237

PhiladelphiaAustin

PHL - AUS

PHLAUS

Philadelphia

Thu 12/4

12:37 pm-5:23 pm

1 stop5h 46m

Austin Bergstrom

Sun 12/7

5:30 am-11:36 am

1 stop5h 06m

$237

PhiladelphiaAustin

PHL - AUS

PHLAUS

Philadelphia

Mon 11/3

7:25 pm-12:22 am

1 stop5h 57m

Austin Bergstrom

Sat 11/8

6:27 pm-12:52 am

1 stop5h 25m

$237

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/7

Showing 1-10 of 22 results
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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 August 29, 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, August is the cheapest month in which you can book a flight from Philadelphia to Austin (average of $285). 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 September 9, 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 at noon, which can drop the price by up to 35% 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 September 7, 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. Sunday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

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 September 9, 2025.
See what other customers who have flown with Southwest, Delta, and United 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
4,250 reviews

Overall

8.0

Food

7.0

Comfort

8.0

Entertainment

7.5

Crew

8.6

Boarding

8.1

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
4,250 reviews
Southwest
8.0
Very good
4,250 reviews

Overall

8.0

Food

7.0

Comfort

8.0

Entertainment

7.5

Crew

8.6

Boarding

8.1

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
7,965 reviews
Southwest
8.0
Very good
4,250 reviews

Overall

8.0

Food

7.0

Comfort

8.0

Entertainment

7.5

Crew

8.6

Boarding

8.1

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
8,943 reviews
Southwest
8.0
Very good
4,250 reviews

Overall

8.0

Food

7.0

Comfort

8.0

Entertainment

7.5

Crew

8.6

Boarding

8.1

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
4,250 reviews

Overall

8.0

Food

7.0

Comfort

8.0

Entertainment

7.5

Crew

8.6

Boarding

8.1

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
3,185 reviews
Southwest
8.0
Very good
4,250 reviews

Overall

8.0

Food

7.0

Comfort

8.0

Entertainment

7.5

Crew

8.6

Boarding

8.1

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 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 5 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 39m.

  • How popular is this Philadelphia to Austin flight route?

    The Philadelphia to Austin Bergstrom flight path was viewed by 19 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • How long is the flight from Philadelphia to Austin?

    Airlines like Southwest fly from Philadelphia to Austin in about 5h 55m. The time it takes to get you to your destination can typically vary by up to . The distance between Philadelphia and Austin is about 1428 mi.

  • 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 $104. Additional round-trip tickets that might be worth considering are offered by Southwest and Spirit Airlines, with the lowest prices starting at $158 and $186, respectively. Users have found that Frontier is 73% cheaper than the other options available to this destination.

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

    Consider Aer Lingus (87%), American Airlines (79%) or Frontier (67%) 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 $69. On average you can expect to pay $242. The most popular route, (Philadelphia - Austin Bergstrom), can usually be booked for $146.

  • 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, August is the cheapest month in which you can book a flight from Philadelphia to Austin (average of $285). 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
Round Rock
Fredericksburg
Pflugerville
Dripping Springs
Georgetown
Cedar Park
Canyon Lake
Seguin
Horseshoe Bay

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Alternative routes for Philadelphia to Austin

See prices for flight routes from nearby airports that may be better suited for you.
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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 September 9, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$104Average$194FlexibilityNo cancel feeOn-time62%
SouthwestCheapest$158Average$442FlexibilityNo cancel feeOn-time63%
Spirit AirlinesCheapest$186Average$257FlexibilityNo cancel feeOn-time65%
American AirlinesCheapest$205Average$440FlexibilityNo cancel feeOn-time71%
DeltaCheapest$236Average$369FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$308Average$494FlexibilityNo cancel feeOn-time69%

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