Cheap Flights from Austin, TX to Philadelphia, PA from $99

Return flight: Philadelphia – Austin

On Cheapflightsplus.com you will find 1 direct and 253 connecting flights from Austin to Philadelphia. You can compare airfare deals from 6 airlines and multiple travel sites from $99, book and save on cheap plane tickets and last minute offers. Also check out AUS-PHL flight schedule to find best flight time, convenient departure and arrival airports.

Flight Information

Below we will explain in detail what the flights cost on the destination from Austin to Philadelphia depends on and how to choose the most interesting flight option for you.

Distance between Austin and Philadelphia is 2299 miles. Time difference between the cities is 1h. Airplanes depart 05:00 to 20:57 from 3 Austin airports and arrive 05:00 to 20:57 to 4 Philadelphia airports. Average flight time is 3h 32m.

  • The fastest flight 3h 32m
  • Average flight time 3h 32m
  • The earliest flight 05:00
  • The latest flight 20:57
  • Distance 1429 ml

The cheapest months to travel to Philadelphia are july (from 99 $), august (from 103 $), october (from 130 $).

The most expensive months are september (from 176 $), october (from 130 $), august (from 103 $).

What is the lowest airfare Austin to Philadelphia?

The cheapest plane ticket found by our users is $99. This airfare is for economy class on one-way F94702 flight by Frontier Airlines for July 5, 2025 which leaves Austin-Bergstrom Intl in Austin at 17:31 am and arrives at Philadelphia Philadelphia Int. at 00:21.

Economy class
$99
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Business class
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First class
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Flight Schedule Austin (Texas) to Philadelphia (Pennsylvania)

06:00 — 22:09
15h 9m flight time
Find flight
from$110
06:00 — 07:21 Austin — Denver
F91815 Frontier Airlines
9h 4m stop
16:25 — 22:09 Denver — Philadelphia
F93266 Frontier Airlines
07:00 — 05:09+1day
21h 9m flight time
Find flight
from$108
06:00 — 07:21 Austin — Denver
F91815 Frontier Airlines
15h 10m stop
23:30 — 05:09 Denver — Philadelphia
F93340 Frontier Airlines
07:30 — 16:26
7h 56m flight time
Find flight
from$128
07:30 — 11:17 Austin — Miami
NK1479 Spirit Airlines
2h 32m stop
13:49 — 16:26 Miami — Philadelphia
NK1109 Spirit Airlines
09:50 — 09:45+1day
22h 55m flight time
Find flight
from$130
09:50 — 13:44 Austin — Miami
NK512 Spirit Airlines
17h 16m stop
07:00 — 09:45 Miami — Philadelphia
NK1011 Spirit Airlines
10:00 — 14:32
3h 32m flight time
Find flight
from$116
Austin — Philadelphia
F91842 Frontier Airlines
10:21 — 01:09+1day
13h 48m flight time
Find flight
from$104
10:21 — 14:10 Austin — Orlando
F94524 Frontier Airlines
8h 24m stop
22:34 — 01:09 Orlando — Philadelphia
F91808 Frontier Airlines
10:21 — 21:38
10h 17m flight time
Find flight
from$137
10:21 — 14:10 Austin — Orlando
F94524 Frontier Airlines
4h 42m stop
18:52 — 21:38 Orlando — Philadelphia
F94170 Frontier Airlines
10:38 — 10:20+1day
22h 42m flight time
Find flight
from$115
10:38 — 14:33 Austin — Miami
F94124 Frontier Airlines
16h 52m stop
07:25 — 10:20 Miami — Philadelphia
F94954 Frontier Airlines
12:14 — 00:43+1day
11h 29m flight time
Find flight
from$115
10:38 — 14:33 Austin — Miami
F94124 Frontier Airlines
5h 48m stop
21:42 — 00:46 Miami — Philadelphia
F91204 Frontier Airlines
13:18 — 22:21
8h 3m flight time
Find flight
from$128
13:18 — 17:14 Austin — Detroit
NK1077 Spirit Airlines
3h 31m stop
20:45 — 22:21 Detroit — Philadelphia
NK1072 Spirit Airlines
15:15 — 05:49+1day
13h 34m flight time
Find flight
from$108
13:59 — 14:52 Austin — Las Vegas
F94683 Frontier Airlines
5h 45m stop
21:54 — 05:49 Las Vegas — Philadelphia
F91602 Frontier Airlines
16:56 — 15:26+1day
21h 30m flight time
Find flight
from$104
10:21 — 14:10 Austin — Orlando
F94524 Frontier Airlines
16h stop
13:46 — 16:25 Orlando — Philadelphia
F92506 Frontier Airlines
17:31 — 00:21+1day
5h 50m flight time
Find flight
from$99
17:31 — 21:06 Austin — Atlanta
F94702 Frontier Airlines
1h 4m stop
22:24 — 00:35 Atlanta — Philadelphia
F92552 Frontier Airlines
18:48 — 23:53+1day
28h 5m flight time
Find flight
from$115
18:48 — 21:42 Austin — Chicago
F92800 Frontier Airlines
22h 45m stop
20:27 — 23:53 Chicago — Philadelphia
F92112 Frontier Airlines
20:57 — 08:04+1day
10h 7m flight time
Find flight
from$128
20:57 — 00:33 Austin — Orlando
NK1619 Spirit Airlines
5h 2m stop
05:35 — 08:04 Orlando — Philadelphia
NK1565 Spirit Airlines
Full flight schedule will help you in detecting at what time planes fly from Austin to Philadelphia. You can also specify the concrete flights and airlines on the route and how long the flight actually is. Use the calendar for today, tomorrow or other specific date as some flights are available only on certain days of the week.
*Departure and arrival times - local. Updated on April 4, 2026.

Popular Airlines on the Route

The flight Austin — Philadelphia is served by 6 regular airlines and 3 low-cost airlines. Most of the flights on this route are operated by Alaska Airlines - 7 departures per week at the price of from $ 363 . And the most expensive tickets are offered by United Airlines airline - from $ 774.

Direct flights

There are 1 nonstop flights on the route. The fastest direct flight is F91842 by Frontier Airlines takes 3h 32m and the cheapest is F94702 by Frontier Airlines for $116.

  • F9 - Frontier Airlines
    from $116
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See more direct flights

Connecting Flights

There are 253 flights with layovers on the route. The fastest connecting flight is UA234 by United Airlines takes 5h 6m and the cheapest is F94702 by Frontier Airlines for $99.

  • AS - Alaska Airlines
    from $363
    Find
  • F9 - Frontier Airlines
    from $99
    Find
  • HA - Hawaiian Airlines
    from $264
    Find
  • UA - United Airlines
    from $252
    Find
  • NK - Spirit Airlines
    from $128
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  • G4 - Allegiant Air
    from $174
    Find
See more connecting flights

Airports

You can fly from Austin to Philadelphia from 3 airports (Austin-Bergstrom Intl, Austin, Camp Maybry AHP).

Austin airports

  • Austin-Bergstrom Intl-AUS
    from $99
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  • Austin-ASQ
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  • Camp Maybry AHP-MMR
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Philadelphia airports

  • Philadelphia Int.-PHL
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  • North Philadelphia-PNE
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  • Mustin Alf-MUV
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  • Philadelphia Sea Plane Base-PSQ
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How to book a plane ticket yourself?

How to book an air ticket yourself?
  • Fill in the search parameters — cities of departure and destination, departure and return dates and click «Find flights»
  • Select the best flight that you like. Please, check the airports of departure and arrival. Select the best fare, but pay attention to the following flight details - airports of departure and arrival, flight duration and layovers. Please use filters and sort to find the best flight.
  • Click «Buy» when you are ready — our system will redirect you to the site that sells the selected flight ticket.
  • Fill in all passenger and payment information — passport and contact information, please double check all passengers’ names and make a payment for your itinerary.
  • That's it — you will receive an email with your e-ticket usually within 10 minutes after your flight is confirmed. Please, print the e-ticket and have it with you at the airport. You would need to have only a passport and/or a required form of ID to travel. Please, check your Visa requirements if you travel outside of the United States or Canada.

    To find a plane ticket, please select dates.

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