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$84+ 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 10/31. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — AUS
Oct 17 — Oct 241
Fri 10/17
Fri 10/24
1 adult, Economy
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Cheapflights Tip: The best prices from Philadelphia to Austin Bergstrom are usually found in August or July, booked 75 days in advance, depart on a Saturday or Wednesday 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 17, 2025.

Round-trip from

$148
(Kiwi.com)

One-way from

$84
(Cheapflightsfares)

Popular in

March

Cheapest in

August

Average price

$289

Good round-trip deal

$196 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. 17% potential increase in price ($83 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($11 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 17, 2025.

This Kiwi.com deal was found by Cheapflights users on 9/15. 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 12/116:40 amPHL - AUS
Nonstop4h 05mMultiple Airlines
Sun 12/145:45 amAUS - PHL
1 stop17h 47mMultiple Airlines
Deal found 9/15$148
This Mytrip deal was found by Cheapflights users on 9/15. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/25:15 amPHL - AUS
1 stop12h 00mFrontier
Fri 10/1010:17 pmAUS - PHL
1 stop18h 43mFrontier
Deal found 9/15$149
This Cheapflightsfares deal was found by Cheapflights users on 9/16. 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 9/16$150
This Frontier deal was found by Cheapflights users on 9/16. 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 10/196:10 amPHL - AUS
Nonstop3h 50mFrontier
Thu 10/3012:05 pmAUS - PHL
Nonstop3h 32mFrontier
Deal found 9/16$151
This Cheapflightsfares deal was found by Cheapflights users on 9/15. 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 10/235:05 amPHL - AUS
1 stop6h 24mFrontier
Mon 10/274:57 pmAUS - PHL
Nonstop3h 32mFrontier
Deal found 9/15$152
This Frontier deal was found by Cheapflights users on 9/15. 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.
Mon 11/31:12 pmPHL - AUS
Nonstop3h 50mFrontier
Fri 11/711:20 amAUS - PHL
1 stop12h 39mFrontier
Deal found 9/15$153
This Booking.com deal was found by Cheapflights users on 9/15. 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.
Wed 10/229:14 pmPHL - AUS
1 stop14h 15mFrontier
Sun 10/267:43 pmAUS - PHL
1 stop15h 51mFrontier
Deal found 9/15$154
This Kiwi.com deal was found by Cheapflights users on 9/15. 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.
Mon 9/226:20 amPHL - AUS
Nonstop4h 13mFrontier
Mon 9/295:29 pmAUS - PHL
1 stop6h 28mFrontier
Deal found 9/15$155
This Cheapflightsfares deal was found by Cheapflights users on 9/17. 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.
Mon 11/1712:52 pmPHL - AUS
Nonstop3h 50mFrontier
Mon 11/2411:58 amAUS - PHL
Nonstop3h 26mFrontier
Deal found 9/17$156
This Booking.com deal was found by Cheapflights users on 9/16. 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 10/56:15 pmAUS - PHL
1 stop12h 20mFrontier
Deal found 9/16$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 17, 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

Wed 10/22

7:20 am-4:10 pm

1 stop9h 50m

Austin Bergstrom

Tue 10/28

7:00 am-3:20 pm

1 stop7h 20m

$189

PhiladelphiaAustin

PHL - AUS

PHLAUS

Philadelphia

Sat 11/22

4:25 pm-8:50 pm

1 stop5h 25m

Austin Bergstrom

Thu 11/27

11:20 am-5:05 pm

1 stop4h 45m

$208

PhiladelphiaAustin

PHL - AUS

PHLAUS

Philadelphia

Tue 11/18

4:00 pm-11:20 pm

2 stops8h 20m

Austin Bergstrom

Sat 11/22

3:25 pm-12:35 am

2 stops8h 10m

$223

PhiladelphiaAustin

PHL - AUS

PHLAUS

Philadelphia

Thu 12/4

5:30 am-10:54 am

1 stop6h 24m

Austin Bergstrom

Tue 12/9

5:40 am-11:31 am

1 stop4h 51m

$237

PhiladelphiaAustin

PHL - AUS

PHLAUS

Philadelphia

Sat 10/25

9:46 am-2:50 pm

1 stop6h 04m

Austin Bergstrom

Wed 10/29

5:00 pm-12:52 am

1 stop6h 52m

$237

PhiladelphiaAustin

PHL - AUS

PHLAUS

Philadelphia

Fri 2/27

5:15 am-10:45 am

1 stop6h 30m

Austin Bergstrom

Mon 3/2

5:10 am-11:00 am

1 stop4h 50m

$274

PhiladelphiaAustin

PHL - AUS

PHLAUS

Philadelphia

Wed 11/5

4:00 pm-11:20 pm

2 stops8h 20m

Austin Bergstrom

Sat 11/8

1:25 pm-8:50 pm

2 stops6h 25m

$284

PhiladelphiaAustin

PHL - AUS

PHLAUS

Philadelphia

Fri 10/17

7:25 pm-12:22 am

1 stop5h 57m

Austin Bergstrom

Wed 10/22

6:27 pm-12:52 am

1 stop5h 25m

$288

PhiladelphiaAustin

PHL - AUS

PHLAUS

Philadelphia

Wed 11/12

3:00 pm-10:59 pm

1 stop8h 59m

Austin Bergstrom

Sun 11/16

6:15 am-1:56 pm

1 stop6h 41m

$288

PhiladelphiaAustin

PHL - AUS

PHLAUS

Philadelphia

Sat 10/25

6:30 am-5:30 pm

2 stops12h 00m

Austin Bergstrom

Wed 10/29

5:30 am-11:40 am

1 stop5h 10m

$312

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/17

Showing 1-10 of 20 results
1
2

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 September 12, 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 17, 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 28% 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 14, 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 17, 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
4,242 reviews

Comfort

8.0

Entertainment

7.5

Food

7.0

Boarding

8.1

Crew

8.6

Overall

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
4,242 reviews
Southwest
8.0
Very good
4,242 reviews

Comfort

8.0

Entertainment

7.5

Food

7.0

Boarding

8.1

Crew

8.6

Overall

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
7,961 reviews
Southwest
8.0
Very good
4,242 reviews

Comfort

8.0

Entertainment

7.5

Food

7.0

Boarding

8.1

Crew

8.6

Overall

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
8,926 reviews
Southwest
8.0
Very good
4,242 reviews

Comfort

8.0

Entertainment

7.5

Food

7.0

Boarding

8.1

Crew

8.6

Overall

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
4,242 reviews

Comfort

8.0

Entertainment

7.5

Food

7.0

Boarding

8.1

Crew

8.6

Overall

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
3,173 reviews
Southwest
8.0
Very good
4,242 reviews

Comfort

8.0

Entertainment

7.5

Food

7.0

Boarding

8.1

Crew

8.6

Overall

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 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 44m.

  • 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 and Delta 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 27m. The distance between Philadelphia and Austin is about 1428 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • 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 $105. 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%), Qatar Airways (85%) or American Airlines (84%) 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 $241. The most popular route, (Philadelphia - Austin Bergstrom), can usually be booked for $121.

  • 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

Browse thousands of different options on Cheapflights for your next trip

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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 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$105Average$195FlexibilityNo cancel feeOn-time62%
SouthwestCheapest$158Average$437FlexibilityNo cancel feeOn-time63%
Spirit AirlinesCheapest$186Average$250FlexibilityNo cancel feeOn-time65%
American AirlinesCheapest$203Average$437FlexibilityNo cancel feeOn-time71%
DeltaCheapest$236Average$358FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$308Average$494FlexibilityNo cancel feeOn-time69%

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