PHL - AUS

$58 Find Cheap Flights from Philadelphia to Austin

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Philadelphia to Austin departing on 3/17. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Austin

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Philadelphia to Austin.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Philadelphia to Austin.
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Everything you should know

Cheapest round-trip
$260
Typical prices: $247-$444
Frontier
Wed 6/3Wed 6/10
PHL - AUS • 1 stop
Cheapest non-stop
$373
Typical prices: $398-$524
American Airlines
Wed 5/20Wed 5/27
PHL - AUS • Non-stop
Advice from real travelers
AI-powered summary based on content written by travel experts. AI can make mistakes.
PHL's public transportation is cost-effective to downtown.
CapMetro’s Bus Route 20 is the cheapest way to Austin.
Expert advice
Expert advice
Expert advice
Expert advice
Top airlines
Frontier
Cheapest • from $260 (round-trip)
Southwest
Best reviews • 8.0 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Every day
You can fly direct with American Airlines. Average duration is 4h 09m
Direct flights
Direct flights
+1
+1
Direct flights
Direct flights
+1
Top layover airports
Fort Lauderdale (FLL)
Cheapest • Avg $182 (round-trip)
St. Louis (STL)
Shortest trip • 5h 18m (one-way)
Insights
Insights
Insights
Insights
When to book
3 weeks
in advance
Our data shows that travelers who book at least 3 weeks in advance save around 27% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
August
Cheapest • 41% price drop
April
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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We hope you love your trip to Austin!
Flight Deals
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Flight Deals

Cheap Flights from Philadelphia to Austin (PHL-AUS)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Philadelphia to Austin that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Philadelphia to Austin

Wed, Jun 3 - Wed, Jun 10
Frontier Logo
9:00 am - 4:21 pm
PHL
-
AUS
8h 21m
1 stop
Frontier Logo
1:19 pm - 1:04 am
AUS
-
PHL
10h 45m
1 stop
$260Frontier
Fri, Jun 12 - Sat, Jun 13
Frontier Logo
6:30 am - 4:21 pm
PHL
-
AUS
10h 51m
1 stop
Frontier Logo
5:16 pm - 11:48 pm
AUS
-
PHL
29h 32m
1 stop
$261Frontier
Tue, Mar 24 - Thu, Mar 26
Spirit Airlines Logo
6:48 am - 4:04 pm
PHL
-
AUS
10h 16m
1 stop
Spirit Airlines Logo
4:59 pm - 11:56 pm
AUS
-
PHL
5h 57m
1 stop
$262Spirit Airlines
Tue, Mar 24 - Thu, Apr 2
Multiple Airlines Logo
6:08 pm - 4:04 pm
PHL
-
AUS
22h 56m
1 stop
Multiple Airlines Logo
4:59 pm - 1:22 am
AUS
-
PHL
7h 23m
1 stop
$263Multiple Airlines
Mon, Mar 30 - Thu, Apr 2
Frontier Logo
8:25 pm - 12:16 am
PHL
-
AUS
28h 51m
1 stop
Frontier Logo
11:00 am - 5:31 am
AUS
-
PHL
17h 31m
1 stop
$264Frontier
Wed, Apr 15 - Fri, Apr 17
Frontier Logo
5:05 am - 5:18 pm
PHL
-
AUS
13h 13m
2 stops
Frontier Logo
6:02 pm - 12:54 am
AUS
-
PHL
5h 52m
1 stop
$265Frontier
Thu, Apr 9 - Sat, Apr 11
Multiple Airlines Logo
8:18 am - 12:24 am
PHL
-
AUS
17h 06m
1 stop
Multiple Airlines Logo
6:12 am - 8:51 pm
AUS
-
PHL
13h 39m
2 stops
$266Multiple Airlines
Wed, Apr 29 - Sat, May 2
Spirit Airlines Logo
6:12 pm - 6:11 pm
PHL
-
AUS
24h 59m
2 stops
Spirit Airlines Logo
9:25 am - 11:37 pm
AUS
-
PHL
13h 12m
2 stops
$267Spirit Airlines
Mon, Mar 23 - Sat, Mar 28
Spirit Airlines Logo
8:18 am - 12:21 pm
PHL
-
AUS
29h 03m
3 stops
Spirit Airlines Logo
6:12 am - 11:56 pm
AUS
-
PHL
16h 44m
1 stop
$268Spirit Airlines
Sun, Mar 15 - Tue, Mar 17
Spirit Airlines Logo
6:08 pm - 12:24 am
PHL
-
AUS
7h 16m
1 stop
Spirit Airlines Logo
6:12 am - 4:26 pm
AUS
-
PHL
33h 14m
3 stops
$269Spirit Airlines
Booking Insights

KAYAK's insights & trends for Philadelphia to Austin flights

Get data-powered insights and trends into flights from Philadelphia to Austin to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Philadelphia to Austin?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Philadelphia to Austin departing in June.

What’s the cheapest day of the week to fly from Philadelphia to Austin?

The average price of all round-trip flights from Philadelphia to Austin clicked on KAYAK for each day over the last 12 months.

If your flying dates are flexible, you should consider flying to Austin on a Thursday, as we generally find the cheapest rates on that day for this route. On the other hand, Friday is the most expensive day to fly from Philadelphia to Austin. For your return ticket, we recommend flying on a Thursday and avoiding Sundays for the best deals.

What is the cheapest month to fly from Philadelphia to Austin?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Philadelphia to Austin, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Philadelphia to Austin is August, where tickets cost $219 (return) on average. On the other hand, the most expensive months are February and March, where the average cost of round-trip tickets is $493 and $483 respectively.

Can I save money by flying with a layover from Philadelphia to Austin?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of $455, prices are generally cheapest when you fly direct.

How far in advance should I book a flight from Philadelphia to Austin?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Philadelphia to Austin, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Philadelphia to Austin, you should book around 3 weeks before departure, which saves you about 27% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 22 weeks before departure.

Expert advice

Expert advice for your flight from Philadelphia to Austin

 
AI-powered summary based on content written by travel experts. AI can make mistakes.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Harriet Baskas

Harriet Baskas

Expert on PHL and AUS

Harriet is an award-winning journalist who is happiest in an airport or an unusual museum. Her stories about airports, air travel, and the business of travel have appeared on NBC News, CNBC, USA TODAY, The Points Guy and other outlets. She is the creator of the StuckatTheAirport.com blog and the author of nine books. When not out on the road or exploring the latest airport amenities, she’s home in Seattle getting ready for the next adventure.

Good to know

Low seasonJanuary
Cheapest flight$58
Best time to beat the crowds but there is an average 18% increase in price.
Most popular time to fly with an average 27% increase in price.
Flight from Philadelphia to Austin

When to book flights from Philadelphia to Austin

Are your dates flexible? Find out the best times to travel from Philadelphia to Austin based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Philadelphia to Austin

  • Where can I park my car in PHL?

    If you drive your car to PHL, you need not worry about driving round and round looking for a parking spot, as PHL boasts numerous parking garages. If you'd like to park your car for the period of your trip, you can do so at Terminal Parking Garages, situated a short distance from the airport's terminals.

  • Does AUS have an onsite hotel?

    AUS does not have an onsite hotel. However, it is close to Hyatt Place Austin Airport and Hilton Austin Airport. You'll be accorded free airport shuttle services as a guest at either of these hotels. You'll also be accorded a comfortable room and fantastic customer care.

  • Where is the children's play area in PHL located?

    PHL is home to the Ready for Take-Off kids' play area. Located in the eastern wing of Terminal A, this superb store boasts aviation-themed toys and child-proofed play areas. At this attraction, you can watch your child have lots of fun while you await your flight to AUS.

  • What are some of the nearby destinations I can easily get to from AUS?

    Once you land at AUS, there are several destinations you'll easily get to, Austin being one of them. From this airport, you'll also be able to easily travel to Llano, Taylor, Johnson City, Fredericksburg, Marble Falls, and San Antonio.

  • What is the cheapest flight from Philadelphia to Austin?

    In the last 3 days, the lowest price for a flight from Philadelphia to Austin was $58 for a one-way ticket and $260 for a round-trip.

  • Do I need a passport to fly between Philadelphia and Austin?

    A passport is not required to fly from Philadelphia to Austin.

  • Which airlines offer Wi-Fi service onboard planes from Philadelphia to Austin?

    American Airlines, JetBlue, Delta, and Alaska Airlines offer inflight Wi-Fi service on the Philadelphia to Austin flight route.

  • Which aircraft models fly most regularly from Philadelphia to Austin?

    The Airbus A319 is the aircraft model that flies most regularly on the Philadelphia to Austin flight route.

  • Which airline alliances offer flights from Philadelphia to Austin?

    Star Alliance, SkyTeam, and oneworld are the airline alliances operating flights between Philadelphia and Austin, with Star Alliance being the most commonly used for this route.

  • On which days can I fly direct from Philadelphia to Austin?

    There are nonstop flights from Philadelphia to Austin on a daily basis.

  • Which is the best airline for flights from Philadelphia to Austin, Southwest or Delta?

    The two airlines most popular with KAYAK users for flights from Philadelphia to Austin are Southwest and Delta. With an average price for the route of $395 and an overall rating of 8.0, Southwest is the most popular choice. Delta is also a great choice for the route, with an average price of $333 and an overall rating of 7.9.

  • How does KAYAK find such low prices on flights from Philadelphia to Austin?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Philadelphia to Austin.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Philadelphia to Austin?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Austin from Philadelphia is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Philadelphia to Austin?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Austin with an airline and back to Philadelphia with another airline. Booking your flights between Philadelphia and AUS can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Philadelphia to Austin?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Austin from Philadelphia up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Philadelphia to Austin

  • Looking for a cheap flight? 25% of our users found flights on this route for $329 or less one-way and $434 or less round-trip.
  • To board your flight to Austin in Philadelphia, you'll have to head to Philadelphia International Airport (PHL), as it is the only airport that offers flights that ply this route. You can board a train, line 37 bus, or taxi to get to this airport from the city center. Of the three, the bus is the cheapest, while the taxi is the quickest. If you'd like to balance speed and cost, the local train is the best means of transport for you.
  • PHL normally serves thousands of travelers each day. As a result, it normally has lengthy security lines. On the date you're set to fly to Austin, you should get to the airport at least 1h 30min before your flight so that you avoid missing your flight because of being stuck in one of the airport's security lines.
  • When waiting for your flight to Austin, you can gain lounge access to several lounges in PHL, so long as you're willing to pay at the door or purchase a membership program. These lounges are Centurion Lounge, located in Terminal A-West near Gate A14, United Club, situated on the second level, between Concourse C and D, and American Airlines Admirals Club, located in various parts of the airport.
  • In Austin, you'll alight from your flight at Austin–Bergstrom International Airport (AUS). At this airport, you can check out various art pieces by local artists on display throughout the airport. You can also check out local musicians who perform live in the airport Monday to Friday, often from 4 pm to 6 pm.
  • AUS features ramps, wheelchairs, and elevators. It also has well-trained airport staff who know how to offer special assistance services. Given that this airport features amenities that'll improve your experience and staff members who will cater to you, if you're a disabled traveler, you can count on having a smooth experience once you land.

Prefer to fly direct from Philadelphia to Austin?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Philadelphia to Austin Bergstrom.
Find which airlines fly direct from Philadelphia Airport to Austin Bergstrom Airport, which days they fly and book direct flights.

Direct departures

Philadelphia to Austin Bergstrom

Monday

American Airlines

American Airlines

Tuesday

American Airlines

American Airlines

Wednesday

American Airlines

American Airlines

Thursday

American Airlines

American Airlines

Friday

American Airlines

American Airlines

Saturday

American Airlines

American Airlines

Sunday

American Airlines

American Airlines

See more direct flights

Direct returns

Austin Bergstrom to Philadelphia

Monday

American Airlines

American Airlines

Tuesday

American Airlines

American Airlines

Wednesday

American Airlines

American Airlines

Thursday

American Airlines

American Airlines

Friday

American Airlines

American Airlines

Saturday

American Airlines

American Airlines

Sunday

American Airlines

American Airlines

See more direct flights

Reviews of the top 5 airlines serving from Philadelphia to Austin

 
See real verified KAYAK customer reviews for airlines flying from Philadelphia to Austin. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Philadelphia to Austin? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
SouthwestOverall score based on 4306 reviews
7.0Food
7.5Entertainment
8.0Comfort
8.1Boarding
8.6Crew
Airline reviews

Flight was hours late, unable to sit next to spouse, I have had so much better experiences. Substantially better, only saving grace was that it was a short flight.

4.0 Okaybyron, Feb 2026
DAL - SAT
Read more Southwest reviews

Flight was hours late, unable to sit next to spouse, I have had so much better experiences. Substantially better, only saving grace was that it was a short flight.

An entire day of delays. Cost lots of money. Meals and a hotel.

Only downside was the legroom and seat width, which is always a problem unless I spend more for a premium seat.

Great flight but super high price. Glad it was a business trip and not personal

On time. Friendly staff. Took to long to pre bord all the specialty groups. Cramped small plane

No delays and arrived to destination 30 min early. Staff was super friendly.

Everything a cheap airline should be at normal airline rates.

Full cans of soda would be nice. A choice between two snacks would be appreciated.

Tried watching free movie and it kept freezing so I couldn’t finish.

I was re-booked onto another flight because my original flight was delayed and I would have missed my connector. I ended up in the “C” group after paying extra to be in the “A “ group on the original flight. At least if you’re going to re-book people, re-book them into the same group.

I was happy that I was able to get a last minute flight but unfortunately my seat was a middle seat. Even with Delta Comfort I wasn't comfortable

There’s not much to say about a one hour flight. This is a connection from LA to RNO that I missed the previous night due to a mechanical check delay on my originating flight from JFK to LAX. The short flight itself was fine. Instructions from the pilot and crew were per usual. The coffee was barely lukewarm, which possibly was purposeful so we would down it quickly. Bags were already on carousel upon reaching baggage claim, which was excellent.

Flight was warm for first few hours and quite rough

Seat was extremely hard which made even a short 1 hour 20 minute flight fairly uncomfortable.

Everything was good except wifi and a leaking drink chiller. The floor was all wet and my bag was soaked. Did not notice until debarking. Have not heard back from Delta. Even though this was leg one of an international flight in first class, they denied access to their Sky Club - very disappointing!

The staff was fine. The plane was extremely tight, and I paid for the wifi and it did not work at all. I was actually going to ask for a refund.

two hour delay and the Delta representative on the PA system was unable to understand

An awesome flight crew. FC seat cushion just doesn’t cut it for a 3+ hour flight.

2+hrs delay without any reason provided and a cramped flight

We waited an hour on the runway to get a gate in Orlando

Delayed initially because they couldn’t print the flight details. Poor instruction on delay. When I got on the plane the flight attendant argued with me about whether my carry on would fit (it did, although she didn’t acknowledge that). No greeting (other than arguing with me) getting on or off the plane.

Massimo, flight attendant was very authentic, attentive - wonderful. Food/wrap was just okay.

Beverage service was not good. Also just one service in 5 hr 30 min flight. No ask fir water ir anything beside one time beverage service.

They are always late and seats was also not having working charger

2 hour delay due to equipment failure. No updates via the app and airport screens (which continued to show a departure time in the past). AA eventually switched planes and the new plane was not catered or cleaned correctly.

This flight captain and crew were amazing, started ahead of time of departure and reached 30 mins before arrival time. Amazing!

Long delays, lack of information about the status of the flight. The flight was delayed 4 times.

Everything about the flight was lovely. My only suggestion would be to offer a few more options of tv series from Apple TV or HBO.

Delays to take off and to leave the plane after landing added a lot of time to this flight.

The Phildalphia to Allentown portion was a BUS, not a plane. All was as expected.

This flight cancelled. I am in the airport right now and my kids sleep on the floor. We are waiting for information in the line 4 hours and rude woman from spirit airline offers us flight to Austin on 23 February. No water no food offer. The offer to book hotel and they will refund 150$. The nearest hotel 450$ per night. So I got flight to San Antonio 02/22 at 7am. I hate this company, they are rude and no empathy. So many people with kids were there. And I don’t sleep and it is cold here. I don’t have warm clothes for me and my kids. And I don’t have money for transport from San Antonio to my Austin.

The flight was delayed over an hour which got us into DFW at approximately 2:20 am

Terrible. Spirit cancelled the flight with 3 hours notice and were absolutely no help getting another flight. Had to make my own reservation on another airline and arrived in Dallas 12 hours later.

They cancelled the flight due to crew unavailability. The next day they cancelled the flight again.

That gate is like a ducking shelter at Newark No where to sit Outlets that don’t work Bathrooms that are dirty

For the cost you can't e too critical, but the inablitiy to recline the seat and minimal cushioning in the seats made for a less than comfortable flight. Other than that we had an ealry departure and arrival, boarding was smooth.

This was my best experience with spirit. I flew you guys 4 times and I must say this was the BEST

Horrible experience. First and last time using this airline. Made an announcement that boarding will start in 15 minutes, canceled the flight 5 minutes later due to no airline staff. Had to book another flight on Delta since Spirit had no other flights arriving to my original destination the same day. I wouldn't recommend anyone to fly with Spirit. No wonder why it consistently ranks high among worst airlines.

The plane was supposed to leave at 12:59 Amma and another plane took us around 9:30 am. There were 7 delay announcements. We were to receive a voucher of $12 back to pay for food at any place in the airport. One passenger tried to use the voucher was denied. I did not receive the voucher for me, my son, and grandson. I went to the desk and informed them and they took my phone # and email and they told me to wait. I did and was never sent. The plane was uncomfortable, the crew was dismissive of anyone beyond the last two seats. I will NEVER fly or recommend Spirit Airlines again.

I knew what I was getting into, but never again. Hour long bag drop. 1.5 hour delay. 1 hr 45 mins sitting on the tarmac after landing. They lost a bunch of bags but luckily not mine. Awful experience.

Gate not determined until I got to the airport - hard to plan the trip to the airport.

Our flight was canceled. I will never use Kayak nor Frontier for travel again. The entire experience was a headache.

Frontier.. nickel and dime add-ons. Flight late, on time, late again, last minute gate change, arrival gate required a shuttle to the terminal. They sure keep you guessing.. if you like a little chaos and airport anxiety, this is the airline for you!

This is my second time flying with Frontier. My current experience was very favorable. The staff from the gate to the plane was friendly, warm and professional. The food options lacked in my opinion. This area needs some attention in my opinion.

First of all we hade waited 3 hours in the airplane waiting to leave. Second the return schedule was changed and it messed up my entire vaction. I won't buy never again another flight and recommend to nobody traveling with them.

There was no food and no entertainment, so I'm not sure why these are even in the survey, as my understanding is frontier does not ever offer food without a few, not even a snack, and there are no screens so unless the flight safety talk is our entertainment why ask how we liked it?. One of the flight attendants say in the back of the plane as people filed in to their seats, yelling orders about where to put baggage and telling people to hurry up. It was the least professional experience I've ever had on a flight.

Very well recently! Frontier is improving and less harrassing customer on luggages! Positive!

Good for a budget airline! It was easy to get on, staff was really nice. Can’t say anything about the food or entertainment because it wasn’t available, which is fine.

I am writing to express my disappointment with my recent Frontier Airlines flight. I was charged $99 at the gate because my bag was said to be too large, yet once onboard there was no available overhead bin space, and I was required to place the bag under the seat in front of me anyway. This made the charge feel unnecessary and unfair. Additionally, before the flight even took off, I was asked to move from the seat I paid for into a middle seat so another passenger and her cat could have my seat to themselves. I was not offered compensation or an explanation for being moved from a paid seat. Between the unexpected bag fee and being forced to give up my seat, this experience fell well below acceptable customer service standards. I would appreciate a review of this situation and appropriate compensation.

It was costly and difficult to check in. $85 to take a small suitcase with me, carry on or checked and $75 on the return trip, Plus $25 if I didn't check my self in check in $25, because I couldn't do it on the kiosk. Small very uncomfortable seats, waited on the runway for near an hour each way. It was my worst flight to date.

Everything you need to know for your flight from Philadelphia to Austin

Information on your arrival and departure airports