PHL - AUS

$46 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 1/28. 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
$205
Overall average: $437
Spirit Airlines
Sun 1/11Sun 1/18
PHL - AUS • 1 stop
Cheapest non-stop
$353
Typical prices: $383-$575
American Airlines
Wed 1/14Wed 1/21
PHL - AUS • Non-stop
Our travelers' advice
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
Video guide: How to find cheap flights to Austin
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Top airlines
Spirit Airlines
Cheapest • from $238 (round-trip)
Southwest
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to book
3 weeks
in advance
Our data shows that travelers who book at least 3 weeks in advance save around 22% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
August
Cheapest • 42% price drop
April
Most popular
Good to know
Good to know
+1
+1
Good to know
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+1
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KAYAK searches 100s of sites at once to find you the best travel deals.
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

Sun, Jan 11 - Sun, Jan 18
Spirit Airlines Logo
6:11 pm - 10:34 am
PHL
-
AUS
17h 23m1 stop
Spirit Airlines Logo
7:25 am - 7:48 pm
AUS
-
PHL
11h 23m2 stops
$205Spirit Airlines
Sat, Jan 17 - Sun, Jan 18
Spirit Airlines Logo
8:20 am - 9:35 pm
PHL
-
AUS
14h 15m1 stop
Spirit Airlines Logo
7:25 am - 7:48 pm
AUS
-
PHL
11h 23m2 stops
$206Spirit Airlines
Tue, Dec 30 - Tue, Jan 13
Multiple Airlines Logo
10:00 pm - 10:13 am
PHL
-
AUS
37h 13m2 stops
Multiple Airlines Logo
7:25 am - 11:50 pm
AUS
-
PHL
15h 25m1 stop
$208Multiple Airlines
Wed, Jan 21 - Sun, Jan 25
Spirit Airlines Logo
8:43 pm - 10:34 am
PHL
-
AUS
14h 51m2 stops
Spirit Airlines Logo
7:25 am - 10:03 pm
AUS
-
PHL
37h 38m3 stops
$209Spirit Airlines
Sat, Jan 10 - Thu, Jan 15
Spirit Airlines Logo
5:30 am - 9:35 pm
PHL
-
AUS
17h 05m3 stops
Spirit Airlines Logo
7:25 am - 10:03 pm
AUS
-
PHL
13h 38m2 stops
$210Spirit Airlines
Mon, Jan 5 - Fri, Jan 9
Spirit Airlines Logo
8:54 pm - 12:58 am
PHL
-
AUS
29h 04m1 stop
Spirit Airlines Logo
7:25 am - 7:48 pm
AUS
-
PHL
11h 23m2 stops
$211Spirit Airlines
Fri, Jan 23 - Wed, Jan 28
Spirit Airlines Logo
5:30 am - 9:35 pm
PHL
-
AUS
17h 05m2 stops
Spirit Airlines Logo
7:25 am - 10:03 pm
AUS
-
PHL
13h 38m2 stops
$212Spirit Airlines
Wed, Apr 15 - Mon, Apr 20
Spirit Airlines Logo
6:15 am - 9:35 pm
PHL
-
AUS
16h 20m1 stop
Spirit Airlines Logo
12:09 pm - 11:59 pm
AUS
-
PHL
10h 50m1 stop
$213Spirit Airlines
Fri, Mar 6 - Mon, Mar 9
Frontier Logo
9:17 am - 3:19 pm
PHL
-
AUS
7h 02m1 stop
Frontier Logo
4:14 pm - 12:52 am
AUS
-
PHL
7h 38m1 stop
$214Frontier
Fri, Mar 6 - Mon, Mar 9
Frontier Logo
9:17 am - 3:19 pm
PHL
-
AUS
7h 02m1 stop
Frontier Logo
4:14 pm - 12:52 am
AUS
-
PHL
7h 38m1 stop
$217Frontier
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.

Find cheap flights to Austin
Find cheap flights to Austin

Planning a trip from Philadelphia to Austin? KAYAK’s data-powered insights will help you find cheap flights. Learn the best time to fly, how early to book your ticket, and other tips to secure great prices.

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 $220 (return) on average. On the other hand, the most expensive months are March and April, where the average cost of round-trip tickets is $495 and $485 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.

Yes, flying with a layover may cost you more time, but you can also save money on the route, with a 1 stop layover the cheapest option at $278 on average.

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 22% 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.
Airports
PHL

PHL offers public transportation with SEPTA trains to downtown, taking about 30 minutes. It's a cost-effective option for reaching the airport.

AUS

CapMetro’s Bus Route 20 is the cheapest way to downtown Austin, running every 15 minutes and taking about 35 minutes.

Our travel experts
Harriet Baskas

Harriet Baskas

Expert on PHL and AUS

Harriet Baskas

Harriet Baskas

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.

Read more

Good to know

Low seasonJanuary
Cheapest flight$46
Best time to beat the crowds but there is an average 15% increase in price.
Most popular time to fly with an average 28% 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 $46 for a one-way ticket and $205 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 $420 and an overall rating of 7.9, Southwest is the most popular choice. Delta is also a great choice for the route, with an average price of $337 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 $262 or less one-way and $403 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.
7.9
SouthwestOverall score based on 4250 reviews
7.5Entertainment
8.6Crew
7.0Food
8.1Boarding
8.0Comfort
Airline reviews

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

10.0 ExcellentIlevba, Nov 2025
DCA - DAL
Read more Southwest reviews

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.

Was good. I miss the free 2 checked bags. That was part of what made Southwest special

For my birthday trip this was my second time ever flying, this trip was the best.

Multiple delays and gate changes. Arrived at final destination 6 hours late. All rental cars had been taken.

The movies using Southwest WiFi kept pausing and I had to restart multiple times.

First, my flight was a usual flight nothing exceptional or unexpected. Over all it was a normal, good flight! Second, your questionaire is wholly lacking in the proper options to which one can answer a question. Often on short flights, there is no food let alone entertainment so why isn't that reflected in your questionaire? A simple "not applicable" would cover that issue appropriately but no, your form arbitrarily enters an answer based on the initial assessment which normally isn't factual. Until you provide an accurate means of assessing flights, I'll no longer be completing of these unimpressive and misleading assessements. Thank you!

Original flight was cancelled and when i was rebooked by the airline, they couldn't seat me in the same type of seat as I had originally booked (went from window/aisle to middle/middle and one was a bulkhead seat, and other wasn't in the same class)

Lady Pilot was perfect in every way wheels up to wheels down communication, professionalism, excellent on time departure and on time arrival, excellent communication! Fantastic job with Superb attitude!!

The food is terrible. The staff is wonderful. Comfort is good.

Left on time, a bit delayed due to headwinds most of the trip.

I fly Delta all the time, have Platinum Medallion status. But this route seems to have major problems with delays and seems to never leave on time! Have only taken it twice in the last two weeks, and each time it had delays of more than 1 hour... very disappointed!!!!

Good seats in Main cabin, excellent service and excellent landing

My flight was cancelled with no explanation after I had already cleared security. I was given 4 options to rebook, only one being non-stop like I had paid for. I grabbed it. It was 4 plus hours later and then took off even later. Biggest complaint is that I booked early and had an aisle seat. They gave me a "window" seat in front of the exit row, so the seat did not decline. I weigh all of 103 #s and it was tight for me! For what I paid, I feel I was kind of ripped off. I think they should have given me the empty comfort seat for the inconvenience. There was no apology nor any explanation as to why the flight was cancelled. My guess is it benefitted Delta in some way.

Very smooth, on-time, and pleasantly uneventful flight. The team at the gate and on board were professional and genuinely courteous. The pilot kept us well updated throughout, and both takeoff and landing were steady and enjoyable without any drama. Just a good, solid flight. Thank you! 💗

Staff was exceptional! Everyone was kind, professional and friendly making the trip very pleasant. Thank you!

No lunch on a x-country flight scheduled for 10:50 am departure, arrived 5+ hrs later. That requires a black box label before you pay for the tickets. Worst, when I checked in online, it's specifically said that lunch was served on his flight for economy Plus passengers.

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.

Excellent - explanations were clear staff was nice and flight was comfortable

Flight was delayed not sure why no explanation given and no apologies either. Otherwise the flight was fine

Did not get the seat I selected and paid for.

Plane was delayed for 6 hours, at first by weather, which is understandable, but was further delayed with NO given reason for 2 1/2 hours more. We had no clue when we were going to depart actually until they opened the ramp. VERY POOR to ZERO COMMUNICATION!!!

Flight was delayed and after being in the airport for like seven hours, it was canceled.

Flight delays numerous times. Everytime we would get close to boarding it would be delayed again. Strung along the entire time.

Overall very good, only complaint I have is the crew from CLT to SAT could have collected trash sooner.

Above and beyond effort from this crew in a tough situation. So helpful and understanding. Thank you!

This was my first time on a budget airline and I couldn't even sit down all the way because my knees would embed in the seat in front of me. I'm only 6' tall with a 32" inseam. There's no upside other than y'all are cheap. I'm glad it was only a 2 hour flight. Lesson learned! I get why everybody talks down on budget airlines. The staff was outstanding, the flight went as well as possible, great pilot, great boarding, smooth sailing. Zero chance I'll be back though.

Uncomfortable seats and tiny tray table. Expensive snacks. Flight was on time and crew was pleasant but take me back to Southwest!

Boarding and unboarding processes were pretty smooth. I gave a low score for Boarding because of how my flight was missing from all the boards at the airport, and when I checked the flight status on the Spirit website, it said it would be departing from Terminal E, gate D15. There are no "D" gates in terminal E.

The flight was on time and the crew was very professional and accommodating. When other airlines are canceling flights Spirit is still flying with on time flights. I have no complaints and will continue to choose Spirit when it is the best option for me.

Prices for bags are extremely expensive and if you go higher on weight, the charge is ridiculous.

Waited at the airport for over 4 hours to board this flight. Terrible airline

Flight was good and on time. Everyone was nice. Seats aren't very comfortable

The seats are too small the plane makes weird noise when landing 🛬

For the minimalist experience, it is really a great ride-- feels a little like public transport i guess

I didn't order food. I requested a Tomato juice and was given a boody mary mix. The serve needs to warn the customer what their given. It wasn't a huge deal, but I wasted $4.50.

Not clean and was told I would get a great seat and it was not great at all

Flight got delayed for 5 hours no good explanation was offered ;(

Horrible. I would never fly Frontier again. The booking process is tricky at best, but fraudulent in my opinion. Frontier customer service did nothing to rectify my purchase -- I ended up paying more than double what I could have gotten from other airlines and nearly triple what I thought I was buying from Frontier. Their booking practices are unfair to the consumer.

Delayed. Text notifications were slow. Not much information o what was happening. Boarding was slow and confusing. Wasn’t even offered water other flight. Had to ask. No entertainment at all. Felt like.a Greyhound bus.

When I wanted to check in 3 hours prior to boarding time, the employees mentioned “a little over an hour delay” so I waited for an hour then I went to go look for food in the terminal and most people from that flight were in the same area looking for food. Finally I decided after food to check to see if it’s anytime closer and now it’s 2 mins until boarding closes?! What are you kidding me? I didn’t receive anything via sms about boarding now nor via email or on the intercom. I luckily made it through, barely, and then there’s no room for my carry on mind you I’m in the very first row so I had to place my purse in one further row back and my carry on sections down. Not sure who pays for better seats to get your stuff placed all over the plane but that was the worst experience I’ve ever had flying with anyone.

Better than expected. Staff were friendly and nice on both flights.

There was no one at the counter to assist with our check in. The app didn’t work, so I arrived at the airport with time to check in and I couldn’t because no employees were there. When I finally got someone on the phone, it was inside the 60min rule and they said I could no longer check in and they could sell me another ticket. We had to scramble and pay an additional $800 for tickets and THEN AFTER (about 60 min from my original convo with customer service and 10min after original departure time) I had boarded my new flight, there was email saying my original flight from Frontier was delayed and leaving 2hr 50min later, but I STILL wouldn’t have been able to check in. Which means customer service should have been able to see it and let me check in because I was well within my check in time. When I call Frontier, they hang up on me. So their app didn’t work and they employees left and they take zero responsibility or assistance with their “customer service”

Terrible. Flight cancelled with no reasoning and no flights to rebook. Employees were useless and did nothing to help. Did not even know where to retrieve luggage from the cancelled flight. Flyers beware.

No fault of Frontier staff: plane was very late, reached Orlando at 1 am, took a while to get luggage. Weather, gov financial shutdown impact on TSA, air controllers seemed to have multiple flights backed up. Frontier staff seemed to cope as gracefully as possible. It did reassure me that I and my new hip could adapt to travel challenges. Food/entertainment were irrelevant to my trip.

Terrible. The canceled my entire flight when I requested a refund for a trip frontier canceled trip one way.

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

Information on your arrival and departure airports