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Cheap flights from Philadelphia to Austin from $72

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Philadelphia to Austin departing on 12/17. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Multiple Airlines Logo
4:00 pm - 9:04 amPHL-AUS
18h 04m1 stop
Multiple Airlines Logo
5:30 am - 12:36 amAUS-PHL
18h 06m1 stop
$174Multiple Airlines
Find Deal
mié., dic. 3 - lun., dic. 15
Multiple Airlines Logo
12:23 pm - 8:53 pmPHL-AUS
9h 30m1 stop
Multiple Airlines Logo
11:30 am - 12:31 amAUS-PHL
12h 01m1 stop
$175Multiple Airlines
Find Deal
vie., ene. 9 - dom., ene. 11
Multiple Airlines Logo
3:00 pm - 8:53 pmPHL-AUS
6h 53m1 stop
Multiple Airlines Logo
5:25 am - 11:59 pmAUS-PHL
17h 34m2 stops
$176Multiple Airlines
Find Deal
mar., ene. 20 - jue., ene. 22
Spirit Airlines Logo
6:11 pm - 10:34 amPHL-AUS
17h 23m1 stop
Spirit Airlines Logo
5:25 am - 7:51 pmAUS-PHL
13h 26m2 stops
$178Spirit Airlines
Find Deal
sáb., ene. 17 - sáb., ene. 24
Multiple Airlines Logo
8:43 pm - 10:34 amPHL-AUS
14h 51m2 stops
Multiple Airlines Logo
7:03 am - 3:55 pmAUS-PHL
7h 52m1 stop
$179Multiple Airlines
Find Deal
jue., ene. 8 - sáb., ene. 10
Multiple Airlines Logo
10:27 am - 8:53 pmPHL-AUS
11h 26m2 stops
Multiple Airlines Logo
7:03 am - 3:48 pmAUS-PHL
7h 45m1 stop
$181Multiple Airlines
Find Deal
sáb., ene. 10 - mié., ene. 14
Frontier Logo
5:30 am - 5:02 pmPHL-AUS
12h 32m1 stop
Frontier Logo
5:58 pm - 12:52 amAUS-PHL
5h 54m1 stop
$182Frontier
Find Deal
jue., feb. 5 - lun., feb. 9
Multiple Airlines Logo
5:15 am - 9:45 pmPHL-AUS
17h 30m2 stops
Multiple Airlines Logo
10:18 am - 6:38 pmAUS-PHL
7h 20m1 stop
$184Multiple Airlines
Find Deal
sáb., dic. 13 - lun., dic. 15
Multiple Airlines Logo
5:30 am - 5:07 pmPHL-AUS
12h 37m1 stop
Multiple Airlines Logo
11:30 am - 11:50 pmAUS-PHL
11h 20m1 stop
$185Multiple Airlines
Find Deal
jue., ene. 15 - sáb., ene. 17
Multiple Airlines Logo
5:30 am - 4:04 pmPHL-AUS
11h 34m1 stop
Multiple Airlines Logo
6:05 pm - 12:51 amAUS-PHL
5h 46m1 stop
$186Multiple Airlines
Find Deal
lun., ene. 12 - lun., ene. 12

Frontier flights from Philadelphia to Austin

Our best Frontier deals on Philadelphia to Austin flight tickets
Frontier
Feb 5
PHL5:30 amPhiladelphia
12h 32m
1 stop
AUS5:02 pmAustin Bergstrom
Feb 9
AUS5:58 pmAustin Bergstrom
5h 54m
1 stop
PHL12:52 amPhiladelphia
$182
Find similar
Frontier
Dec 2
PHL6:00 amPhiladelphia
18h 12m
1 stop
AUS11:12 pmAustin Bergstrom
Dec 4
AUS5:58 pmAustin Bergstrom
5h 53m
1 stop
PHL12:51 amPhiladelphia
$203
Find similar
Frontier
Dec 11
PHL5:30 amPhiladelphia
12h 33m
1 stop
AUS5:03 pmAustin Bergstrom
Dec 14
AUS9:02 pmAustin Bergstrom
20h 36m
1 stop
PHL6:38 pmPhiladelphia
$207
Find similar

Spirit Airlines flights from Philadelphia to Austin

Our best Spirit Airlines deals on Philadelphia to Austin flight tickets
Spirit Airlines
Jan 17
PHL6:11 pmPhiladelphia
17h 23m
1 stop
AUS10:34 amAustin Bergstrom
Jan 24
AUS5:25 amAustin Bergstrom
13h 26m
2 stops
PHL7:51 pmPhiladelphia
$178
Find similar
Spirit Airlines
Dec 14
PHL10:22 amPhiladelphia
26h 46m
2 stops
AUS12:08 pmAustin Bergstrom
Dec 16
AUS5:30 amAustin Bergstrom
16h 46m
1 stop
PHL11:16 pmPhiladelphia
$190
Find similar
Spirit Airlines
Jan 6
PHL5:25 amPhiladelphia
17h 32m
1 stop
AUS9:57 pmAustin Bergstrom
Jan 8
AUS11:30 amAustin Bergstrom
7h 21m
1 stop
PHL7:51 pmPhiladelphia
$191
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Philadelphia to Austin that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated noviembre 26, 2025.
Use the filters below to find and compare flights from Philadelphia to Austin that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

PhiladelphiaAustin

PHL - AUS

PHLAUS

Philadelphia

mié. 12/3

4:00 pm-9:04 am

1 stop18h 04m

Austin Bergstrom

lun. 12/15

5:30 am-12:36 am

1 stop18h 06m

$174

PhiladelphiaAustin

PHL - AUS

PHLAUS

Philadelphia

vie. 1/9

12:23 pm-8:53 pm

1 stop9h 30m

Austin Bergstrom

dom. 1/11

11:30 am-12:31 am

1 stop12h 01m

$175

PhiladelphiaAustin

PHL - AUS

PHLAUS

Philadelphia

mar. 1/20

3:00 pm-8:53 pm

1 stop6h 53m

Austin Bergstrom

jue. 1/22

5:25 am-11:59 pm

2 stops17h 34m

$176

PhiladelphiaAustin

PHL - AUS

PHLAUS

Philadelphia

sáb. 1/17

6:11 pm-10:34 am

1 stop17h 23m

Austin Bergstrom

sáb. 1/24

5:25 am-7:51 pm

2 stops13h 26m

$178

PhiladelphiaAustin

PHL - AUS

PHLAUS

Philadelphia

jue. 1/8

8:43 pm-10:34 am

2 stops14h 51m

Austin Bergstrom

sáb. 1/10

7:03 am-3:55 pm

1 stop7h 52m

$179

PhiladelphiaAustin

PHL - AUS

PHLAUS

Philadelphia

sáb. 1/10

10:27 am-8:53 pm

2 stops11h 26m

Austin Bergstrom

mié. 1/14

7:03 am-3:48 pm

1 stop7h 45m

$181

PhiladelphiaAustin

PHL - AUS

PHLAUS

Philadelphia

jue. 2/5

5:30 am-5:02 pm

1 stop12h 32m

Austin Bergstrom

lun. 2/9

5:58 pm-12:52 am

1 stop5h 54m

$182

PhiladelphiaAustin

PHL - AUS

PHLAUS

Philadelphia

sáb. 12/13

5:15 am-9:45 pm

2 stops17h 30m

Austin Bergstrom

lun. 12/15

10:18 am-6:38 pm

1 stop7h 20m

$184

PhiladelphiaAustin

PHL - AUS

PHLAUS

Philadelphia

jue. 1/15

5:30 am-5:07 pm

1 stop12h 37m

Austin Bergstrom

sáb. 1/17

11:30 am-11:50 pm

1 stop11h 20m

$185

PhiladelphiaAustin

PHL - AUS

PHLAUS

Philadelphia

lun. 1/12

5:30 am-4:04 pm

1 stop11h 34m

Austin Bergstrom

lun. 1/12

6:05 pm-12:51 am

1 stop5h 46m

$186

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Austin from

How to get the cheapest flight ticket from Philadelphia to Austin

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Austin?

The cheapest month to fly to Austin from Philadelphia is in August. Flight prices, which tend to average around $220, are often lower during this time because this is during the off-season. If you’re not able to fly to Austin in August, then September is your next best option. Flight prices from Philadelphia to Austin during September average around $230.

What is the cheapest day to depart on your flight to Austin?

The cheapest day to depart on your flight to Austin is on a Thursday when prices can be found for as low as $344. This is often the case because there is less demand to fly during this day of the week. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from Philadelphia to Austin for around $437.

What is the cheapest time of day to depart on your flight to Austin?

In the afternoon is the cheapest time of day to fly from Philadelphia to Austin when you can find flight prices for as low as $346. Flying to Austin in the afternoon is an ideal time because this is during off-peak travel hours. Flights to Austin are more costly in the evening, with an average ticket price of $470. Departure times in the evening fall within the peak daily travel times, which is why tickets can be more expensive.

What is the cheapest Philadelphia to Austin Bergstrom flight route?

Fly from Philadelphia to Austin Bergstrom for the best Philadelphia - Austin Bergstrom flight prices

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

You are more likely to see cheaper flights to Austin from Philadelphia when booking weeks ahead of your departure date. In general, you can expect to find flights to Austin for around $374 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Austin from Philadelphia for as low as $286 on momondo.

What cabin class options are available on Philadelphia to Austin Bergstrom flights?

There are 3 cabin classes available to choose from on Philadelphia to Austin Bergstrom flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Philadelphia to Austin flights?

No. A direct flight is the cheapest option for a flight between Philadelphia to Austin.

How have Philadelphia to Austin flight prices changed over time?

As of November 2025, prices for Philadelphia to Austin flights are approximately 42% cheaper when compared to flights at the same time last year.

When to book flights from Philadelphia to Austin

Are you open to changing your travel dates? Check out the ideal times to fly from Philadelphia to Austin according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Philadelphia to Austin (PHL to AUS) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Philadelphia to Austin

Best Price Found

$180

Fastest flight time

3h 43m

Direct flights

Every day

Airports in Austin

1 airport
The best one-way flight to Austin from Philadelphia in the past 72 hours is $180. The best round-trip flight deal from Philadelphia to Austin found on momondo in the last 72 hours is $320.
The fastest flight from Philadelphia to Austin takes 3h 43m
Direct flights go from Philadelphia to Austin every day.
There is 1 airport near Austin: Austin Bergstrom (AUS)
Search flight deals

  • How far is Philadelphia to Austin Bergstrom by plane?

    The distance between Philadelphia and Austin Bergstrom is about 1434.4 mi. Typically, this will take 6h 53m by plane in normal conditions.

  • When did momondo last update prices for flights from Philadelphia Airport to Austin Bergstrom Airport?

    Prices for flights from Philadelphia Airport to Austin Bergstrom Airport are updated daily.

  • How many operators does momondo search for flights from Philadelphia Airport to Austin Bergstrom Airport?

  • How old do you have to be to fly from Philadelphia Airport to Austin Bergstrom Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Philadelphia Airport to Austin Bergstrom Airport.

  • What documentation or ID do you need to fly to Austin Bergstrom Airport?

    The necessary travel and health documents for your Austin Bergstrom Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Philadelphia to Austin?

  • What is the most popular airline from Philadelphia to Austin?

Best airlines flying from Philadelphia to Austin

Compare and see reviews for airlines that fly from Philadelphia to Austin with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $109Free CancellationRating
5.8
3,099 reviews
Search Frontier flights
Spirit AirlinesPriceFrom $155Free CancellationRating
6.3
8,158 reviews
Search Spirit Airlines flights
SouthwestPriceFrom $158Free CancellationRating
8.0
4,254 reviews
Search Southwest flights
American AirlinesPriceFrom $193Free CancellationRating
7.2
11,038 reviews
Search American Airlines flights
DeltaPriceFrom $236Free CancellationRating
7.9
7,998 reviews
Search Delta flights
United AirlinesPriceFrom $322Free CancellationRating
7.4
9,046 reviews
Search United Airlines flights

  • United Airlines Flights From Philadelphia to Austin

    Across 14 United Airlines flights from Philadelphia to Austin this week, the average price was $512, with the best United Airlines deals starting from $322 round-trip. 9,046 users have rated United Airlines on momondo, with an average score of 7.4/10.

  • American Airlines Flights From Philadelphia to Austin

    American Airlines is also a popular choice for this route. American Airlines flight deals for Philadelphia to Austin start from as low as $193 round-trip, depending on your selected dates, with average American Airlines deals seen on momondo around $429. American Airlines operates 12 flights to Austin from Philadelphia in an average week. Users have rated it 7.2/10 across 11,038 reviews.

Traveling to a place near Austin?

Book flights to Austin if you plan to visit one of these locations
Fredericksburg
Wimberley
San Marcos
Round Rock
Georgetown
Canyon Lake
Marble Falls
Cedar Park
Horseshoe Bay
Dripping Springs
Seguin
Pflugerville
Kyle
Bastrop
Buda
Flatonia

Why use momondo?

Why should I use momondo to find a flight deal from Philadelphia to Austin?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Philadelphia to Austin. momondo saves you time and could save you money on your trip.

Can I find flights from Philadelphia to Austin with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Austin from Philadelphia with this policy.

How can momondo help me find flights from Philadelphia to Austin?

momondo provides multiple filters to help you find the best flight to Austin from Philadelphia. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Philadelphia to Austin right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Austin, momondo offers a useful price alert feature which will track prices for flights to Austin from Philadelphia and alert you when they change.

An easier way to manage your Austin trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
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vie. 12/26
vie. 1/2
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