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Cheap Flights from Austin to Philadelphia

Popular airlines from Austin to Philadelphia

Choose from 1 carriers that fly from Austin to Philadelphia, including American Airlines, Enjoy the cheapest tickets on this route with Frontier Airlines.
American Airlines logo American Airlines

Find direct flights from Austin to Philadelphia within the next three months. Book one-way flights from S$ 72 or return tickets from S$ 106.

      • Cheapest nonstop
        AUS 10:40
        3h 29m
        Direct
        PHL 15:09
        Austin - Philadelphia | Thu, Dec 4 | Frontier Airlines
        PHL 06:40
        4h 5m
        Direct
        AUS 09:45
        Philadelphia - Austin | Thu, Dec 11 | Frontier Airlines
        S$ 106 S$ 295
        64% OFF
        64% OFF
        S$ 295 S$ 106
      • AUS 18:05
        5h 46m
        1 stop
        PHL 00:51
        Austin - Philadelphia | Thu, Jan 8 | Frontier Airlines
        TTN 06:00
        12h 17m
        1 stop
        AUS 17:17
        Philadelphia - Austin | Mon, Jan 12 | Frontier Airlines
        S$ 168 S$ 295
        43% OFF
        43% OFF
        S$ 295 S$ 168
      • AUS 05:30
        8h 14m
        1 stop
        PHL 14:44
        Austin - Philadelphia | Wed, Dec 10 | Spirit Airlines
        PHL 05:35
        12h 38m
        1 stop
        AUS 17:13
        Philadelphia - Austin | Mon, Dec 15 | Frontier Airlines
        S$ 174 S$ 295
        41% OFF
        41% OFF
        S$ 295 S$ 174
      • AUS 18:08
        5h 43m
        1 stop
        PHL 00:51
        Austin - Philadelphia | Fri, Dec 12 | Frontier Airlines
        PHL 11:07
        10h 20m
        1 stop
        AUS 20:27
        Philadelphia - Austin | Sun, Dec 14 | Frontier Airlines
        S$ 174
        41% OFF
        S$ 295 S$ 174
      • AUS 06:20
        15h 53m
        1 stop
        PHL 23:13
        Austin - Philadelphia | Wed, Dec 3 | Jetblue Airways
        PHL 16:00
        7h 21m
        1 stop
        AUS 22:21
        Philadelphia - Austin | Sat, Dec 6 | Spirit Airlines
        S$ 175
        41% OFF
        S$ 295 S$ 175
      • AUS 05:30
        9h 25m
        1 stop
        PHL 15:55
        Austin - Philadelphia | Sat, Dec 6 | Spirit Airlines
        PHL 05:35
        12h 38m
        1 stop
        AUS 17:13
        Philadelphia - Austin | Mon, Dec 8 | Frontier Airlines
        S$ 176
        40% OFF
        S$ 295 S$ 176
      • AUS 06:10
        16h 3m
        1 stop
        PHL 23:13
        Austin - Philadelphia | Wed, Dec 3 | Spirit Airlines
        PHL 16:00
        7h 21m
        1 stop
        AUS 22:21
        Philadelphia - Austin | Sat, Dec 6 | Spirit Airlines
        S$ 179
        39% OFF
        S$ 295 S$ 179
      • AUS 06:55
        21h 36m
        1 stop
        PHL 05:31
        Austin - Philadelphia | Sun, Dec 7 | Frontier Airlines
        PHL 10:22
        11h 5m
        1 stop
        AUS 20:27
        Philadelphia - Austin | Sun, Dec 14 | Spirit Airlines
        S$ 190
        36% OFF
        S$ 295 S$ 190
      • AUS 10:46
        16h 59m
        1 stop
        PHL 04:45
        Austin - Philadelphia | Mon, Dec 1 | Frontier Airlines
        PHL 20:36
        27h 36m
        1 stop
        AUS 23:12
        Philadelphia - Austin | Mon, Dec 8 | Frontier Airlines
        S$ 191
        35% OFF
        S$ 295 S$ 191
      • AUS 18:08
        5h 43m
        1 stop
        PHL 00:51
        Austin - Philadelphia | Fri, Dec 5 | Frontier Airlines
        PHL 11:07
        10h 20m
        1 stop
        AUS 20:27
        Philadelphia - Austin | Sun, Dec 7 | Frontier Airlines
        S$ 278
        6% OFF
        S$ 295 S$ 278
      • AUS 13:00
        17h 25m
        1 stop
        PHL Invalid Date
        Austin - Philadelphia | Fri, Nov 21 | Normal Airline
        PHL 15:00
        6h
        Direct
        AUS 16:00
        Philadelphia - Austin | Sun, Nov 23 | Normal Airline
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Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.

Flying from Austin to Philadelphia

The distance between Austin and Philadelphia is about 2,302.69km. It takes around 3 hours 59 minutes on average to fly from Austin to Philadelphia. The most popular month to Philadelphia is July. The off-season for travel is October.

Cheapest one-way flight priceS$ 66
Cheapest return ticket priceS$ 106
Off-season for travelOctober
Peak season for travelJuly
Flight distance2,302.69km
Average flight time3 hours 59 minutes
Popular airlineAmerican Airlines

Cheapest time to fly from Austin to Philadelphia

The cheapest time for Austin to Philadelphia flights: Nov 30 to Dec 7 — one way flight prices from S$ 65.

Cheapest flights
From price
Search
  • 1623
  • 2330

  • Dec

    307
  • 714
  • 1421
  • 2128

  • Jan

    284
  • 411
  • 1118
  • 1825

  • Feb

    251
  • 18
Displayed prices are calculated based on the lowest average weekly prices of the corresponding route on Trip.com.

Frequently Asked Questions

  • How long is a flight from Austin (AUS) to Philadelphia (PHL)?

    It takes about 3 hours 59 minutes to fly from Austin (AUS) to Philadelphia (PHL).
  • By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from Austin to Philadelphia 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.
  • The cheapest months to fly from Austin to Philadelphia is October, when demand for travel is lower.
  • After crunching the numbers on our November flight calendar, it's currently cheapest to fly from Austin to Philadelphia on November 21, 2025 with Frontier Airlines, with prices starting at S$ 192.
  • The time difference between Philadelphia and Austin is 1h.
  • Tickets can only be changed or cancelled 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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