Expect long lines at AUS due to high traffic. Arrive early to avoid missing your flight, especially during the morning rush.

Most accurate provider | eDreams 3 stars |
|---|---|
Most trusted provider | eDreams 3 stars |
Round-trip from | $213 (Cheapflightsfares) |
One-way from | $45 (Spirit) |
Popular in | April |
Cheapest in | October |
Average price | $470 |
Good round-trip deal | $431 or less |
Good one-way deal | $319 or less |
Fly from
Fly to
Route
Depart
Return
Price
AustinPhiladelphia
AUS - PHL
AUSPHL
Austin Bergstrom
Fri 1/30
11:30 am-11:50 pm
1 stop11h 20m
Philadelphia
Sun 2/1
5:30 am-4:04 pm
1 stop11h 34m
AustinPhiladelphia
AUS - PHL
AUSPHL
Austin Bergstrom
Thu 1/29
11:30 am-8:01 pm
1 stop7h 31m
Philadelphia
Thu 2/12
1:28 pm-9:21 am
2 stops20h 53m
AustinPhiladelphia
AUS - PHL
AUSPHL
Austin Bergstrom
Wed 2/4
7:25 am-10:03 pm
3 stops13h 38m
Philadelphia
Sun 2/8
5:30 am-4:04 pm
1 stop11h 34m
AustinPhiladelphia
AUS - PHL
AUSPHL
Austin Bergstrom
Thu 2/12
6:45 am-4:37 pm
1 stop8h 52m
Philadelphia
Mon 2/16
5:30 am-2:35 pm
1 stop10h 05m
AustinPhiladelphia
AUS - PHL
AUSPHL
Austin Bergstrom
Tue 1/27
6:00 am-11:09 pm
1 stop16h 09m
Philadelphia
Sun 2/1
1:30 pm-12:35 pm
1 stop24h 05m
AustinPhiladelphia
AUS - PHL
AUSPHL
Austin Bergstrom
Wed 1/7
4:24 pm-10:03 pm
3 stops28h 39m
Philadelphia
Sun 1/11
5:30 am-10:34 am
3 stops30h 04m
AustinPhiladelphia
AUS - PHL
AUSPHL
Austin Bergstrom
Sat 2/7
7:10 am-11:30 am
Nonstop3h 20m
Philadelphia
Sat 2/14
6:54 pm-10:05 pm
Nonstop4h 11m
AustinPhiladelphia
AUS - PHL
AUSPHL
Austin Bergstrom
Wed 1/21
7:10 am-11:30 am
Nonstop3h 20m
Philadelphia
Wed 1/28
12:08 pm-7:08 pm
1 stop8h 00m
AustinPhiladelphia
AUS - PHL
AUSPHL
Austin Bergstrom
Sat 2/7
9:30 am-7:55 pm
2 stops9h 25m
Philadelphia
Sat 2/14
2:00 pm-9:55 pm
2 stops8h 55m
AustinPhiladelphia
AUS - PHL
AUSPHL
Austin Bergstrom
Tue 2/24
12:49 pm-5:10 pm
Nonstop3h 21m
Philadelphia
Mon 3/2
6:54 pm-10:05 pm
Nonstop4h 11m
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*1 star | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star | |
| Price Accuracy3 stars | Trust Score*2 stars | |
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star |
To ensure you get the cheapest price possible for a flight from Austin to Philadelphia, you should look to book at least 48 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.
Currently, January is the cheapest month in which you can book a flight from Austin to Philadelphia (average of $80). Flying from Austin to Philadelphia in July is currently the most expensive (average of $162). 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.
One of the essential ways to save on airfare from Austin to Philadelphia is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the evening could potentially save you up to 81% on airfare.
Travelers seeking maximum savings on their Austin to Philadelphia flight should consider departing on Monday evenings when fares are most often at their lowest. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.
Overall
Boarding
Food
Comfort
Crew
Entertainment
Reviews
Thomas,Dec 2025
SEA - DEN
Overall
Boarding
Food
Comfort
Crew
Entertainment
Reviews
Thomas,Dec 2025
SEA - DEN
Overall
Boarding
Food
Comfort
Crew
Entertainment
Reviews
Thomas,Dec 2025
SEA - DEN
Overall
Boarding
Food
Comfort
Crew
Entertainment
Reviews
Thomas,Dec 2025
SEA - DEN
Overall
Boarding
Food
Comfort
Crew
Entertainment
Reviews
Thomas,Dec 2025
SEA - DEN
Overall
Boarding
Food
Comfort
Crew
Entertainment
Reviews
Thomas,Dec 2025
SEA - DEN
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$109 | Average$217 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$137 | Average$220 | FlexibilityNo cancel fee | On-time65% | |
| Cheapest$158 | Average$338 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$170 | Average$415 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$236 | Average$347 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$272 | Average$554 | FlexibilityNo cancel fee | On-time69% |