AUS - PHL

$51 Find Cheap Flights from Austin to Philadelphia

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Austin to Philadelphia departing on 3/10. 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 Philadelphia

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

Cheapest round-trip
$220
Overall average: $472
Spirit Airlines
Mon 3/2Wed 3/4
AUS - PHL • 3 stops
Cheapest non-stop
$373
Typical prices: $450-$705
American Airlines
Wed 3/4Tue 3/10
AUS - PHL • Non-stop
Our travelers' advice
AI-powered summary based on content written by travel experts. AI can make mistakes.
American's Main Cabin Extra offers early boarding.
Expect long security lines at Austin Bergstrom.
Expert advice
Expert advice
Expert advice
Expert advice
Video guide: How to find cheap flights to Philadelphia
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Top airlines
Frontier
Cheapest • from $220 (round-trip)
Southwest
Best reviews • 8.0 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 29% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
October
Cheapest • 32% price drop
July
Most popular
Good to know
Good to know
+1
+1
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+1
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Flight Deals

Cheap Flights from Austin to Philadelphia (AUS-PHL)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Austin to Philadelphia 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 Austin to Philadelphia

Mon, Mar 2 - Wed, Mar 4
Spirit Airlines Logo
4:59 pm - 7:52 pm
AUS
-
PHL
25h 53m
3 stops
Spirit Airlines Logo
6:00 am - 11:21 pm
PHL
-
AUS
18h 21m
2 stops
$220Spirit Airlines
Mon, Mar 2 - Thu, Mar 5
Spirit Airlines Logo
7:15 am - 4:26 pm
AUS
-
PHL
32h 11m
3 stops
Spirit Airlines Logo
7:46 pm - 8:53 pm
PHL
-
AUS
26h 07m
2 stops
$221Spirit Airlines
Thu, Feb 12 - Mon, Feb 16
Spirit Airlines Logo
7:15 am - 7:52 pm
AUS
-
PHL
11h 37m
1 stop
Spirit Airlines Logo
5:26 pm - 8:53 pm
PHL
-
AUS
28h 27m
1 stop
$222Spirit Airlines
Fri, Apr 10 - Mon, Apr 13
Spirit Airlines Logo
12:08 pm - 12:16 am
AUS
-
PHL
11h 08m
1 stop
Spirit Airlines Logo
6:21 am - 10:08 pm
PHL
-
AUS
16h 47m
1 stop
$223Spirit Airlines
Sun, Feb 22 - Fri, Feb 27
Multiple Airlines Logo
4:59 pm - 9:53 am
AUS
-
PHL
39h 54m
2 stops
Multiple Airlines Logo
5:30 am - 2:29 pm
PHL
-
AUS
9h 59m
1 stop
$226Multiple Airlines
Sat, Mar 14 - Mon, Mar 23
Multiple Airlines Logo
4:27 pm - 12:52 am
AUS
-
PHL
7h 25m
1 stop
Multiple Airlines Logo
5:28 pm - 10:08 pm
PHL
-
AUS
29h 40m
1 stop
$227Multiple Airlines
Thu, Apr 16 - Sun, Apr 19
Spirit Airlines Logo
12:09 pm - 8:44 am
AUS
-
PHL
19h 35m
1 stop
Spirit Airlines Logo
6:15 am - 11:14 am
PHL
-
AUS
29h 59m
1 stop
$228Spirit Airlines
Fri, Feb 13 - Mon, Feb 16
Multiple Airlines Logo
3:30 pm - 11:18 am
AUS
-
PHL
18h 48m
1 stop
Multiple Airlines Logo
7:18 pm - 8:53 pm
PHL
-
AUS
26h 35m
2 stops
$229Multiple Airlines
Thu, Mar 5 - Mon, Mar 9
Spirit Airlines Logo
6:10 am - 7:52 pm
AUS
-
PHL
12h 42m
2 stops
Spirit Airlines Logo
7:46 pm - 11:21 pm
PHL
-
AUS
28h 35m
3 stops
$230Spirit Airlines
Tue, Feb 24 - Tue, Mar 3
Spirit Airlines Logo
7:15 am - 4:26 pm
AUS
-
PHL
32h 11m
3 stops
Spirit Airlines Logo
9:39 am - 11:21 pm
PHL
-
AUS
38h 42m
3 stops
$232Spirit Airlines
Booking Insights

KAYAK's insights & trends for Austin to Philadelphia flights

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

Find cheap flights to Philadelphia
Find cheap flights to Philadelphia

Planning a trip from Austin to Philadelphia? 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 Austin to Philadelphia?

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

If you are looking for a flight deal from Austin to Philadelphia, look for departures on Thursdays and avoid leaving on a Sunday, as it's usually the priciest day. When flying back from Philadelphia, Thursday is the cheapest day to fly and Friday is the most expensive.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Austin to Philadelphia, 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 Austin to Philadelphia is October, where tickets cost $261 (return) on average. On the other hand, the most expensive months are April and February, where the average cost of round-trip tickets is $479 and $475 respectively.

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

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 $336, prices are generally cheapest when you fly direct.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Austin to Philadelphia, 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 Austin to Philadelphia, you should book around 3 weeks before departure, which saves you about 29% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 17 weeks before departure.

Expert advice

Expert advice for your flight from Austin to Philadelphia

 
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
Stefanie Waldek

Stefanie Waldek

Expert on Qatar Airways

Stefanie Waldek is a freelance space, travel, and design writer based in Saratoga Springs, NY. Her words have appeared in Space.com, Travel + Leisure, Condé Nast Traveler, Architectural Digest, and House Beautiful, among other publications. An expert in aviation and expedition cruising, Stefanie is frequently up in the air or on the sea, likely en route to Antarctica or the Arctic.

Harriet Baskas

Harriet Baskas

Expert on American Airlines, 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 seasonFebruary
Cheapest flight$51
Best time to beat the crowds but there is an average 23% increase in price.
Most popular time to fly and prices are also 26% lower on average.
Flight from Austin to Philadelphia

When to book flights from Austin to Philadelphia

Are your dates flexible? Find out the best times to travel from Austin to Philadelphia 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 Austin to Philadelphia

  • Does Philadelphia International Airport have pet relief areas?

    If you’re traveling with your pet and are looking for a pet relief area at Philadelphia International Airport, you should know that the airport has plenty of dedicated spaces in every terminal as well as outside. For travelers arriving at the airport, one is conveniently located adjacent to Terminal A on your way to baggage claim. There are two others along the commercial vehicle roadway on Terminals B and E.

  • Which is the quickest way to get to Austin Bergstrom International Airport?

    If you’re in a hurry and need to get to Austin Bergstrom International Airport quickly, a taxi would be the most ideal means to use. Not only can they be found anywhere around the city center in Austin and downtown, but they are also incredibly fast and drop you outside the airport. You can also choose to drive via the I-35 E.

  • Which airlines have a lounge at Austin Bergstrom International Airport?

    To enjoy the lounge facilities at Austin Bergstrom International Airport, consider booking your flight with American Airlines, United Airlines, or Delta. Each airline has a lounge at the airport offering a wide range of amenities such as TVs, Wi-Fi, snacks, and drinks. The American Airlines Admirals Club can be found Airside on the main terminal on the mezzanine level across from Gate 22. The United Club is a few doors down from the Admirals Club while the Delta Sky Club is located on the same Terminal but further up near Gate 4.

  • Are there any onsite hotels at Austin Bergstrom International Airport?

    There are two hotels within proximity of Austin Bergstrom International Airport; Hilton Austin Airport and Hyatt Place Austin Airport. If you have an early flight out of the airport, consider staying at one of these hotels. Doing so will eliminate the hectic commute to the airport, reducing the chances of traffic delays. In addition, both hotels offer an airport shuttle, so you will be dropped off outside the airport terminal.

  • What is the cheapest flight from Austin to Philadelphia?

    In the last 3 days, the lowest price for a flight from Austin to Philadelphia was $51 for a one-way ticket and $220 for a round-trip.

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

    No, a passport isn't needed to fly from Austin to Philadelphia. However, local authorities might ask for an official ID.

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

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

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

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

  • Which airline alliances offer flights from Austin to Philadelphia?

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

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

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

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

    The two airlines most popular with KAYAK users for flights from Austin to Philadelphia are Southwest and Delta. With an average price for the route of $321 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 $349 and an overall rating of 7.9.

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

    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 Austin to Philadelphia.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Philadelphia from Austin 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 Austin to Philadelphia?

    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 Philadelphia with an airline and back to Austin with another airline. Booking your flights between Austin and PHL 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 Austin to Philadelphia?

    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 Philadelphia from Austin 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 Austin to Philadelphia

  • Looking for a cheap flight? 25% of our users found flights on this route for $379 or less one-way and $450 or less round-trip.
  • To get wheelchair assistance at both airports, ensure you inform your airline as you book your flight. They will communicate to the staff at both airports, ensuring that you have a wheelchair waiting for you when you get to the departure terminal at Austin Bergstrom Airport (AUS) and as soon as you land at Philadelphia International Airport (PHL).
  • If you’re traveling with an infant and need a nursing station at AUS Airport, you can find one after the security checkpoints across from Gate 7.
  • When booking connecting flights, please confirm if the flight is an automatic transfer or self-transfer. In the case of a self-transfer, it is up to you to ensure that you’ve checked yourself and your bags into each individual flight.
  • If you want to leave your car at Austin Bergstrom Airport, consider the Economy Parking Lot. It is located north of Garages 1 and 2 and charges a flat rate of around $8 daily.
  • Philadelphia International Airport has a kids’ play area in Terminal A-East. If you’re traveling with kids, you can let them hang around the airplane museum as you clear baggage claim.

Prefer to fly direct from Austin to Philadelphia?

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

Direct departures

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

Direct returns

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

Reviews of the top 5 airlines serving from Austin to Philadelphia

 
See real verified KAYAK customer reviews for airlines flying from Austin to Philadelphia. 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 Austin to Philadelphia? 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 4267 reviews
8.1Boarding
7.0Food
7.5Entertainment
8.0Comfort
8.6Crew
Airline reviews

All good except once again bags took an hour at Midway Airport Happens all the time. Ridiculous

10.0 ExcellentAnonymous, Jan 2026
PHX - MDW
Read more Southwest reviews

All good except once again bags took an hour at Midway Airport Happens all the time. Ridiculous

Everything went smoothly and we even arrived a little bit early.

Great vacation. Can't wait till next year for another one.

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

The seats were comfortable, and the boarding process was pretty smooth.

3 hour delay. Had to change plans and was still delayed.

The staff was very friendly, professional, and courteous. The overall flight was a great experience.

The crew canceled the complementary snack and drink in anticipation of turbulence that never materialized. I was counting on the drink (water) to take the the doses of medication - prescribed for my heart condition - that were due during the flight. Since no snack or meal was served on this flight, I cannot rate the food quality. Otherwise, this flight was excellent.

Departure was delayed more than 1/2 hour while we waited for luggage (only) transfer from another flight/plane. Once approved for takeoff, the flight was excellent.

Timing, quality of service, promptness and courtesy of the staff

It was last minute due to weather - considering - it was amazing! Good smiles, friendly staff and they were making sure we knew what was going on when and where.

delta last minute gave me a boarding pass for a different flight with no confirmation that they were changing it

The service from the flight attendants were of supreme quality. They greeted and treated everyone with a wide smile. This is totally absent nowadays. Kudos to them!!!!

Excellent flight and got us around tough weather. Only issue was seat TV did not work and crew tried to reboot.

Very large passenger too space from my own seat. Arm board couldn’t be lowered because of his size. It wads very uncomfortable trip, as the flight was full couldn’t move anywhere having back pain because of the position in which I was the entire flight.

was sitting in the jet bridge for 10 minutes in -20 degree weather waiting for my bag

Outdated equipment in disrepair, wifi inoperable. Broken seats, taped air vents, generally poor condition, the 717 showed its age and lack of upkeep.

My flight out of Baton Rouge to Atlanta was delayed by a half hour. This got us into Atlanta airport 30 minutes late. I ran through the airport to get to my connecting flight. As I approached the boarding gate, I saw the boarding door was still open and a passenger was being checked in. But when I got to the gate, the boarding agent told me they had already given away my seat and there were no empty seats on that flight. So I had to take a later flight. That has never happened to me before. Very frustrating.

Connection through Atlanta was difficult. Mechanical issue on plane caused a two hour delay. New gate was a mile away.

Delayed, toilets did not flush, pilot parked to far away from Gate

I like flying first class, and United has a nice one

Unbelievably poor service from flight attendants. They didn’t even do water service on a four hour flight. Just disrespectful.

Lately I like the planes have been exceptionally filthy. There’s lines of dust and dirt all across the ceiling in the vents, and the cracks in between the seats are literally full of food. It’s definitely not the quality of service that I was used to with United. I’m also very disappointed with the Wi-Fi! All I wanna do is knock out a few work jobs while I’m trapped in my seat And it spools so bad. They did provide me with a refund, but the process of getting that refund is so complicated. It’s unfortunate.

The newer screen was super cool and had the option to watch many different shows or movies. Crew was polite and helpful. However again, many children screaming bloody murder and kicking my seat, and parents doing nothing about it as usual.

Flight was good and crew was super polite. However, there were around 5 kids screaming the WHOLE 2 hours. I understand kids have to come but parents need to do something to control their children. They make the experience terrible, especially after finishing 16 hour shifts at the hospital I needed some sleep, which I did not get.

Plane was crowded and even when we hit altitude, the plane was hot, not enough air flow.

Overall it was good. I missed my connection but I was put on another flight.

Gate agent did not hold flight for connection, provided no assistance to get new flight

Smooth flight. Boarding was chaotic. Could not hear the gate agent over the intercom. People were lined up in the wrong lines. Groups one and two were told to board through line one and group 3 through line 2. All very confusing. Once in the air, the flight was smooth. There was no entertainment option on this aircraft, even though it was a larger aircraft.

The attendants were kind and helpful. A sugar-free drink would have been very welcome.

The entertainment options were at best, fair. It was exactly the same as my outbound flight. It would have been more entertaining if there were some series from Apple TV, HBO, Showtime or other carriers for me to catch up with.

The seat cushions were very worn so they were extremely uncomfortable.

Crew were all friendly and helpful. It was a short flight so just a beverage service with a cookie. After we were boarded the plane took about 45 minutes to leave the gate but it was New Year’s Eve so not shocking there was some delay. Overall good experience and very grateful.

the trip to madrid was uncomfortable with my legs touching the seat in front of me

Very crowded flight but what can you expect these days?? Crew was accommodating.

The seats in economy were appeared to be quite thin and lack sufficient cushioning to be comfortable. Perhaps it was my seating position but the plane seemed notably load.

Internet was a bit expensive and did not work ask that week otherwise a good flight

The flight had a delay that made me being in a real rush to take the second flight. The delay was almost for 2 hours. They moved us from gate to gate in 4 times. Once I arrived to Philadelphia, I got to run thorough all the airport, as the train was already closed by that time. So I got sick with asthma for all the running I had to do. And I was the last one to board, when it was almost closed. So irresponsable with the people

The plane was probably full boarding was easy. We were able to check our carry-on luggage for free. It was a return flight through Philly to LA. Never saw a stewardess do a demonstration of emergency Procedures. I think my flight was pretty full

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.

It was ok. It was expensive to check 2 bags ($75.00 per bag), and then it took a long time to wait for shuttle to take us from one terminal to the terminal where the plane was taking off at LAX. And all of this for a flight where we had to pay for any food or drink that was not water.

It didn’t happen. I booked it and then was told it wasn’t available and then forced to pay far higher prices for a worse option

A 630departure flight Delayed 6hours! They changed my gate, I moved to the new gate. Had our flight on the screen for 12noon departure. I go get above to eat, check screen again and the flight was gone, no notice no announcement, nothing!! They sent my bag on the flight I wasn’t on, got it back to me 3days later. Thank goodness they did refund my money but I will NEVER fly them again.

Due to weather, my flight was delayed, further delayed, then canceled. I eventually got through to a support person who helped me find a different route out of MSP, but to get to DIA, they didn't want to, but eventually did help with the connection ticket purchase. But even this replacement flight was delayed time and time again, and I would have missed my connecting flights and I didn't want to get stuck in a layover city, so after 12 hours at the airport with two young boys who were very tired, we just cancelled our plans and spent the week at home, instead of Nana's.

Plane and crew on board were fine. Everything else was terrible.

The third party booking with cheapflightsfares was awful. Kayak should NOT partner with them. They sold me a bundle including seat selection and carry-on, but did not book the carry-ons with Frontier, so I’m out of pocket for $414 more while I await resolution.

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

Information on your arrival and departure airports