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Flights from Philadelphia to Austin

Cheapest airlines flights from Philadelphia to Austin

Fly from Philadelphia to Austin with 2 carriers, including American Airlines, Frontier Airlines, Frontier Airlines offers the cheapest flights from Philadelphia to Austin.
American Airlines logo American Airlines Frontier Airlines logo Frontier Airlines

Non stop flights available! Find direct flights from Philadelphia to Austin for the next 3 months. Book one way flights from US$72 or round trip tickets from US$251.

      • Cheapest nonstop
        PHL 08:25
        4h 8m
        Nonstop
        AUS 11:33
        Philadelphia - Austin | Fri, Dec 5 | American Airlines
        AUS 06:08
        3h 26m
        Nonstop
        PHL 10:34
        Austin - Philadelphia | Sun, Dec 7 | American Airlines
        US$251 US$457
        45% OFF
        45% OFF
        US$457 US$251
      • PHL 08:00
        4h 3m
        Nonstop
        AUS 11:03
        Philadelphia - Austin | Sun, Nov 23 | Frontier Airlines
        AUS 09:42
        5h 59m
        Nonstop
        PHL 16:41
        Austin - Philadelphia | Thu, Nov 27 | United Airlines
        US$375 US$457
        18% OFF
        18% OFF
        US$457 US$375
      • PHL 06:00
        28h 51m
        1 stop
        AUS 09:51
        Philadelphia - Austin | Thu, Nov 20 | Frontier Airlines
        AUS 11:58
        3h 26m
        Nonstop
        PHL 16:24
        Austin - Philadelphia | Mon, Nov 24 | Frontier Airlines
        US$151 US$457
        67% OFF
        67% OFF
        US$457 US$151
      • PHL 20:36
        28h 38m
        1 stop
        AUS 00:14
        Philadelphia - Austin | Fri, Dec 12 | Frontier Airlines
        AUS 06:55
        21h 36m
        1 stop
        PHL 05:31
        Austin - Philadelphia | Sun, Dec 14 | Frontier Airlines
        US$155
        66% OFF
        US$457 US$155
      • PHL 06:15
        12h 29m
        1 stop
        AUS 17:44
        Philadelphia - Austin | Fri, Nov 21 | Spirit Airlines
        AUS 11:58
        3h 26m
        Nonstop
        PHL 16:24
        Austin - Philadelphia | Mon, Nov 24 | Frontier Airlines
        US$156
        66% OFF
        US$457 US$156
      • PHL 07:55
        10h 49m
        1 stop
        AUS 17:44
        Philadelphia - Austin | Fri, Nov 21 | Frontier Airlines
        AUS 11:58
        3h 26m
        Nonstop
        PHL 16:24
        Austin - Philadelphia | Mon, Nov 24 | Frontier Airlines
        US$158
        65% OFF
        US$457 US$158
      • PHL 06:00
        17h 13m
        2 stops
        AUS 22:13
        Philadelphia - Austin | Fri, Nov 28 | Spirit Airlines
        AUS 11:58
        3h 26m
        Nonstop
        PHL 16:24
        Austin - Philadelphia | Mon, Dec 1 | Frontier Airlines
        US$165
        64% OFF
        US$457 US$165
      • PHL 06:00
        17h 13m
        2 stops
        AUS 22:13
        Philadelphia - Austin | Fri, Nov 28 | Frontier Airlines
        AUS 11:58
        3h 26m
        Nonstop
        PHL 16:24
        Austin - Philadelphia | Mon, Dec 1 | Frontier Airlines
        US$198
        56% OFF
        US$457 US$198
      • PHL 05:30
        9h 38m
        1 stop
        AUS 14:08
        Philadelphia - Austin | Tue, Dec 23 | Frontier Airlines
        AUS 09:03
        24h 28m
        1 stop
        PHL 10:31
        Austin - Philadelphia | Tue, Dec 30 | Frontier Airlines
        US$202
        56% OFF
        US$457 US$202
      • PHL 11:07
        23h 46m
        1 stop
        AUS 09:53
        Philadelphia - Austin | Thu, Dec 11 | Frontier Airlines
        AUS 15:46
        6h 27m
        1 stop
        PHL 23:13
        Austin - Philadelphia | Sat, Dec 13 | Jetblue Airways
        US$212
        54% OFF
        US$457 US$212
      • PHL 08:00
        7h 19m
        1 stop
        AUS 14:19
        Philadelphia - Austin | Thu, Dec 11 | Delta Air Lines
        AUS 18:27
        5h 9m
        1 stop
        PHL 00:36
        Austin - Philadelphia | Sat, Dec 13 | Delta Air Lines
        US$218
        52% OFF
        US$457 US$218
      • PHL 19:17
        6h 11m
        1 stop
        AUS 00:28
        Philadelphia - Austin | Fri, Dec 12 | Delta Air Lines
        AUS 06:40
        5h 39m
        1 stop
        PHL 13:19
        Austin - Philadelphia | Sun, Dec 14 | Delta Air Lines
        US$218
        52% OFF
        US$457 US$218
      • PHL 13:00
        17h 25m
        1 stop
        AUS Invalid Date
        Philadelphia - Austin | Sun, Nov 16 | Normal Airline
        AUS 15:00
        6h
        Nonstop
        PHL 16:00
        Austin - Philadelphia | Tue, Nov 18 | Normal Airline
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Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.

Philadelphia to Austin Flight Information

The distance between Philadelphia and Austin is approximately 2,302.69 km. On average, a flight from Philadelphia to Austin takes around 4 hours 57 minutes. The most popular month to fly to Austin is January. The off-season for travel is October.

Cheapest one-way flight priceUS$72
Cheapest return ticket priceUS$151
Cheapest monthOctober
Peak season for travelJanuary
Flight distance2,302.69 km
Average flight time4 hours 57 minutes
Popular airlineAmerican Airlines

When is the cheapest time to book flights from Philadelphia to Austin?

Best time for cheap flights from Philadelphia to Austin are between Dec 14 and Dec 21 with one way fares from US$72

Cheapest flights
From price
Search
  • 916
  • 1623
  • 2330

  • Dec

    307
  • 714
  • 1421
  • 2128

  • Jan

    284
  • 411
  • 1118
  • 1825

  • Feb

    251
Displayed prices are calculated based on the cheapest average weekly prices of the corresponding route on Trip.com.

Frequently Asked Questions

  • Which airlines offer direct flights from Philadelphia to Austin?

    At the moment, you can catch a nonstop flight from Philadelphia to Austin with the following airlines, including: Frontier Airlines American Airlines Selected airlines are based on historical data collected from flight bookings users made on Trip.com within the last 90 days.
  • It takes about 4 hours 57 minutes to fly from Philadelphia to Austin.
  • By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from Philadelphia to Austin is around 40 days (6 weeks) in advance, and the best time to fly is usually on Tuesday, Wednesday, and Saturday. Tuesday typically offers the cheapest flights for departure, while Saturday offers the best return deals.
  • Based on Trip.com data in the past 4 weeks, there is 28 flight per week flying from Philadelphia to Austin. You can check the weekly schedule for popular airlines on this route below: American Airlines: S/M/T/W/T/F/S -- AA2609 (11:15)
  • The cheapest months to fly from Philadelphia to Austin is October, when demand for travel is lower.
  • After crunching the numbers on our November flight calendar, it's currently cheapest to fly from Philadelphia to Austin on November 24, 2025 with Frontier Airlines, with prices starting at US$30.
  • You can land at any one of the following hubs in Austin, with Philadelphia International Airport to Austin–Bergstrom International Airport (PHL-AUS) is by far the most common option on this route: Austin–Bergstrom International Airport (AUS).
  • The time difference between Austin and Philadelphia is 1h.
  • Tickets can only be changed or canceled if permitted by airline policy. To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy. However, if the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.

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