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 | $361 (CheapOair) |
One-way from | $54 (Trip.com) |
Popular in | February |
Cheapest in | October |
Average price | $445 |
Good round-trip deal | $449 or less |
Good one-way deal | $429 or less |
Fly from
Fly to
Route
Depart
Return
Price
AustinPhiladelphia
AUS - PHL
AUSPHL
Austin Bergstrom
Tue 4/21
2:30 pm-11:58 pm
1 stop8h 28m
Philadelphia
Sat 4/25
10:28 am-5:23 pm
1 stop7h 55m
AustinPhiladelphia
AUS - PHL
AUSPHL
Austin Bergstrom
Tue 2/17
11:55 am-8:50 pm
2 stops7h 55m
Philadelphia
Sat 2/21
5:30 am-3:05 pm
2 stops10h 35m
AustinPhiladelphia
AUS - PHL
AUSPHL
Austin Bergstrom
Sun 3/8
3:40 pm-12:05 am
2 stops7h 25m
Philadelphia
Tue 3/10
7:45 am-2:20 pm
2 stops7h 35m
AustinPhiladelphia
AUS - PHL
AUSPHL
Austin Bergstrom
Wed 5/6
8:30 am-4:50 pm
2 stops7h 20m
Philadelphia
Sun 5/10
5:50 am-11:40 am
2 stops6h 50m
AustinPhiladelphia
AUS - PHL
AUSPHL
Austin Bergstrom
Thu 5/14
6:00 am-4:23 pm
1 stop9h 23m
Philadelphia
Sun 5/17
8:25 am-5:56 pm
1 stop10h 31m
AustinPhiladelphia
AUS - PHL
AUSPHL
Austin Bergstrom
Mon 5/18
1:41 pm-8:15 am
2 stops17h 34m
Philadelphia
Thu 5/21
6:53 pm-7:36 am
1 stop13h 43m
AustinPhiladelphia
AUS - PHL
AUSPHL
Austin Bergstrom
Tue 3/17
1:20 pm-10:40 pm
2 stops8h 20m
Philadelphia
Sun 3/22
5:30 am-12:50 pm
2 stops8h 20m
AustinPhiladelphia
AUS - PHL
AUSPHL
Austin Bergstrom
Fri 1/30
6:25 am-4:20 pm
1 stop8h 55m
Philadelphia
Tue 2/3
5:40 am-2:00 pm
2 stops9h 20m
AustinPhiladelphia
AUS - PHL
AUSPHL
Austin Bergstrom
Sat 2/21
8:30 am-6:00 pm
2 stops8h 30m
Philadelphia
Mon 2/23
1:40 pm-10:05 pm
2 stops9h 25m
AustinPhiladelphia
AUS - PHL
AUSPHL
Austin Bergstrom
Wed 1/28
7:05 am-5:05 pm
2 stops9h 00m
Philadelphia
Sun 2/1
5:25 am-1:05 pm
2 stops8h 40m
| 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 Accuracy- | Trust Score*1 star | |
| Price Accuracy3 stars | Trust Score*2 stars | |
| Price Accuracy1 star | Trust Score*3 stars |
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.
Comfort
Entertainment
Food
Boarding
Crew
Overall
Reviews
Thomas,Dec 2025
SEA - DEN
Comfort
Entertainment
Food
Boarding
Crew
Overall
Reviews
Thomas,Dec 2025
SEA - DEN
Comfort
Entertainment
Food
Boarding
Crew
Overall
Reviews
Thomas,Dec 2025
SEA - DEN
Comfort
Entertainment
Food
Boarding
Crew
Overall
Reviews
Thomas,Dec 2025
SEA - DEN
Comfort
Entertainment
Food
Boarding
Crew
Overall
Reviews
Thomas,Dec 2025
SEA - DEN
Comfort
Entertainment
Food
Boarding
Crew
Overall
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$326 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$171 | Average$415 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$236 | Average$350 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$272 | Average$554 | FlexibilityNo cancel fee | On-time69% |