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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. 11 — oct. 181
sáb. 10/11
sáb. 10/18
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 septiembre 11, 2025.

Round-trip from

$149
(Booking.com)

One-way from

$84
(Cheapflightsfares)

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 septiembre 11, 2025.

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.
jue. 10/236:54 pmPHL - AUS
1 stop20h 17mFrontier
lun. 10/273:01 pmAUS - PHL
1 stop22h 16mFrontier
Deal found 9/10$149
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.
dom. 10/126:10 amPHL - AUS
Nonstop3h 50mMultiple Airlines
dom. 10/194:30 pmAUS - PHL
1 stop16h 02mMultiple Airlines
Deal found 9/9$150
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.
jue. 10/25:15 amPHL - AUS
1 stop12h 00mFrontier
jue. 10/167:43 pmAUS - PHL
1 stop27h 42mFrontier
Deal found 9/10$151
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.
jue. 10/25:15 amPHL - AUS
2 stops13h 10mFrontier
dom. 10/511:03 amAUS - PHL
Nonstop3h 38mFrontier
Deal found 9/10$152
This Frontier 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 11/135:15 amPHL - AUS
1 stop12h 46mFrontier
dom. 11/165:56 pmAUS - PHL
1 stop5h 58mFrontier
Deal found 9/10$153
This Frontier 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 11/145:15 amPHL - AUS
1 stop12h 46mFrontier
dom. 11/1611:05 amAUS - PHL
Nonstop3h 32mFrontier
Deal found 9/10$154
This Kiwi.com deal was found by Cheapflights users on 9/11. 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.
lun. 9/226:20 amPHL - AUS
Nonstop4h 13mFrontier
vie. 10/36:02 pmAUS - PHL
1 stop5h 57mFrontier
Deal found 9/11$155
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.
dom. 9/215:20 pmPHL - AUS
1 stop25h 43mFrontier
vie. 9/265:29 pmAUS - PHL
1 stop6h 28mFrontier
Deal found 9/10$156
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.
mié. 9/2412:00 pmPHL - AUS
1 stop12h 02mMultiple Airlines
jue. 10/211:08 amAUS - PHL
Nonstop3h 38mMultiple Airlines
Deal found 9/10$157
This Frontier deal was found by Cheapflights users on 9/11. 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.
lun. 9/226:20 amPHL - AUS
Nonstop4h 13mFrontier
lun. 9/2910:23 amAUS - PHL
Nonstop3h 38mFrontier
Deal found 9/11$158
This Frontier deal was found by Cheapflights users on 9/11. 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.
dom. 10/126:10 amPHL - AUS
Nonstop3h 50mFrontier
lun. 10/134:57 pmAUS - PHL
Nonstop3h 32mFrontier
Deal found 9/11$159
This Kiwi.com deal was found by Cheapflights users on 9/11. 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.
lun. 9/226:20 amPHL - AUS
Nonstop4h 13mFrontier
jue. 10/27:35 pmAUS - PHL
1 stop20h 17mFrontier
Deal found 9/11$160

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 septiembre 11, 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

vie. 10/3

5:15 am-4:34 pm

1 stop12h 19m

Austin Bergstrom

dom. 10/5

11:03 am-3:41 pm

Nonstop3h 38m

$151

PhiladelphiaAustin

PHL - AUS

PHLAUS

Philadelphia

vie. 10/24

4:10 pm-9:32 pm

1 stop6h 22m

Austin Bergstrom

dom. 10/26

7:43 pm-12:34 pm

1 stop15h 51m

$158

PhiladelphiaAustin

PHL - AUS

PHLAUS

Philadelphia

vie. 10/10

5:33 am-4:59 pm

1 stop12h 26m

Austin Bergstrom

vie. 10/17

7:20 am-6:49 pm

1 stop10h 29m

$190

PhiladelphiaAustin

PHL - AUS

PHLAUS

Philadelphia

lun. 10/6

6:20 am-9:33 am

Nonstop4h 13m

Austin Bergstrom

lun. 10/6

10:54 pm-2:17 pm

2 stops38h 23m

$191

PhiladelphiaAustin

PHL - AUS

PHLAUS

Philadelphia

vie. 10/10

9:55 pm-12:49 pm

2 stops15h 54m

Austin Bergstrom

vie. 10/17

11:30 am-4:11 pm

1 stop27h 41m

$213

PhiladelphiaAustin

PHL - AUS

PHLAUS

Philadelphia

mié. 11/5

5:30 am-11:05 am

1 stop6h 35m

Austin Bergstrom

lun. 11/10

6:34 pm-12:51 am

1 stop5h 17m

$237

PhiladelphiaAustin

PHL - AUS

PHLAUS

Philadelphia

jue. 10/9

5:30 am-11:05 am

1 stop6h 35m

Austin Bergstrom

mar. 10/14

6:40 am-1:20 pm

1 stop5h 40m

$237

PhiladelphiaAustin

PHL - AUS

PHLAUS

Philadelphia

mié. 10/8

8:10 am-1:45 pm

2 stops6h 35m

Austin Bergstrom

jue. 10/9

9:55 pm-9:25 am

1 stop10h 30m

$261

PhiladelphiaAustin

PHL - AUS

PHLAUS

Philadelphia

mar. 3/10

7:00 am-1:11 pm

1 stop7h 11m

Austin Bergstrom

mié. 3/11

2:05 pm-11:01 pm

1 stop7h 56m

$273

PhiladelphiaAustin

PHL - AUS

PHLAUS

Philadelphia

mar. 12/9

6:00 am-11:05 am

1 stop6h 05m

$88

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/10

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 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 septiembre 11, 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 septiembre 11, 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
4,248 reviews

Boarding

8.1

Overall

8.0

Entertainment

7.5

Food

7.0

Crew

8.6

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

Boarding

8.1

Overall

8.0

Entertainment

7.5

Food

7.0

Crew

8.6

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

Boarding

8.1

Overall

8.0

Entertainment

7.5

Food

7.0

Crew

8.6

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

Boarding

8.1

Overall

8.0

Entertainment

7.5

Food

7.0

Crew

8.6

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

Boarding

8.1

Overall

8.0

Entertainment

7.5

Food

7.0

Crew

8.6

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

Boarding

8.1

Overall

8.0

Entertainment

7.5

Food

7.0

Crew

8.6

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 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 Frontier and Spirit Airlines fly from Philadelphia to Austin in about 12h 19m. The time it takes to get you to your destination can typically vary by up to 07m. 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 $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 $96.

  • 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 septiembre 11, 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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