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Flights from Philadelphia to Austin

Cheapest airlines flights from Philadelphia to Austin

Fly from Philadelphia to Austin with 1 carriers, including Frontier Airlines, Frontier Airlines offers the cheapest flights from Philadelphia to Austin.

Non stop flights available! Find direct flights from Philadelphia to Austin for the next 3 months. Book one way flights from US$41 or round trip tickets from US$159.

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 3 hours 57 minutes. The most popular month to fly to Austin is June. The off-season for travel is April.

Cheapest one-way flight priceUS$41
Cheapest round-trip ticket priceUS$159
Off-season for travelApril
Peak season for travelJune
Flight distance2,302.69 km
Average flight time3 hours 57 minutes
Popular airlineFrontier Airlines

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

Best time for cheap flights from Philadelphia to Austin are between Oct 12 and Oct 19 with one way fares from US$40

Cheapest flights are between Oct 12-Oct 19
From US$40
Search
  • Sep

    317
  • 714
  • 1421
  • 2128
  • Oct

    285
  • 512
  • 1219
  • 1926
  • Nov

    262
  • 29
  • 916
  • 1623
Displayed prices are calculated based on the cheapest average weekly prices of the corresponding route on Trip.com.

Frequently Asked Questions

  • What are the cheapest flights from Philadelphia to Austin (PHL-AUS)?

    Based on Trip.com data, Frontier Airlines offers one-way fares as low as US$41 on Cheapest nonstop routes (e.g. PHL to AUS on Mon, Oct 13), while Frontier Airlines offers Cheapest nonstop round-trips from US$159 departing on Mon, Oct 13 and returning on Sun, Oct 19.
  • 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 around 3 hours 57 minutes to fly from Philadelphia (PHL) to Austin (AUS).
  • 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.
  • To find best deals on flights from Philadelphia to Austin, you can use various tools on Trip.com:
    · Be flexible with your travel dates to get the cheapest flight deal. Now the cheapest flight deal is on Mon, Oct 13, with one-way flights priced at just US$41.
    · Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is Frontier Airlines.
    · Set up price alerts to easily monitor ticket prices without having to check every day.
    · Check Trip.com flight deals and promo codes frequently.
    · Avoid peak season unless you book very early. It seems the peak season for Austin travel is around June.
    · Get exclusive promo codes for Trip.com app users.
  • After crunching the numbers on our September flight calendar, it's currently cheapest to fly from Philadelphia to Austin on September 11, 2025 with Frontier Airlines, with prices starting at $91.
  • 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.

How to find a cheap flight from Philadelphia to Austin

Wait until the last minute and flight costs are often sky-high. Plan ahead, book the right way, and your savings can soar. We have loads of saving tips to help you find a cheap flight from Philadelphia to Austin. Book your flights at the right time and save more.
1
Being flexible with your dates to get the cheapest Philadelphia to Austin ticket.
Tap "Date" on flight search bar to scan through the calender for Philadelphia to Austin airfare over next 6 months in 2025. If you would like to fly in next 3 months, it seems the cheapest date is on Mon, Oct 13 at US$41 for one-way flights.
2
Compare cheap Philadelphia to Austin flight deals from over hundreds of airlines.
Our extensive search allows you to compare prices from over 500 airlines to choose the cheapest flight tickets from Philadelphia to Austin. The cheapest airline operating is Frontier Airlines.
3
Set up a Price Alert
By setting up a Price Alert for your Philadelphia to Austin route, you can easily track the price of your airline tickets from Philadelphia to Austin without manually checking every day.
4
Don't miss cheap Philadelphia to Austin flight deals and promo codes.
You can always get the latest deals through Trip.com Deals and Promo Codes for cheap flights for cheap flights. If registering a free membership, you can receive more deals for your flights.
5
Book early or wait unitl the last minute.
It's always better to book early. Flight tickets tend to be the cheapest when they are first released, normally about a year before the departure date. So, check online as soon as the flights you want become available. If you miss the cheapest time, you can still find lower-priced tickets as the flight date approaches.
6
Search for flights on the go.
To get the best flight booking experience on the go, download Trip.com free app and search for cheap flight tickets from Philadelphia to Austin to get exclusive deals for you.