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Cheap flights from Philadelphia to Austin from $44

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 2/19. 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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Find the cheapest flights from Philadelphia to Austin

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
5:30 am - 3:40 pm
PHL
-
AUS
11h 10m
1 stop
Frontier Logo
10:16 am - 4:37 pm
AUS
-
PHL
29h 21m
1 stop
$246Frontier
Thu, Feb 19 - Sun, Feb 22
Multiple Airlines Logo
5:05 am - 12:24 am
PHL
-
AUS
20h 19m
2 stops
Multiple Airlines Logo
8:36 pm - 7:58 pm
AUS
-
PHL
22h 22m
1 stop
$248Multiple Airlines
Thu, Mar 26 - Sun, Mar 29
Multiple Airlines Logo
1:02 pm - 9:04 am
PHL
-
AUS
21h 02m
2 stops
Multiple Airlines Logo
7:15 am - 8:44 am
AUS
-
PHL
24h 29m
1 stop
$249Multiple Airlines
Thu, Feb 12 - Mon, Feb 16
Spirit Airlines Logo
7:46 pm - 9:29 am
PHL
-
AUS
14h 43m
2 stops
Spirit Airlines Logo
6:12 am - 10:52 pm
AUS
-
PHL
15h 40m
2 stops
$252Spirit Airlines
Sat, Mar 7 - Thu, Mar 12
Multiple Airlines Logo
8:06 am - 8:53 pm
PHL
-
AUS
13h 47m
1 stop
Multiple Airlines Logo
10:16 am - 4:37 pm
AUS
-
PHL
29h 21m
1 stop
$253Multiple Airlines
Fri, Feb 20 - Sun, Feb 22
Multiple Airlines Logo
5:30 am - 2:24 pm
PHL
-
AUS
9h 54m
1 stop
Multiple Airlines Logo
4:59 pm - 11:18 am
AUS
-
PHL
17h 19m
2 stops
$254Multiple Airlines
Fri, Feb 20 - Sat, Feb 21
Spirit Airlines Logo
5:26 pm - 4:04 pm
PHL
-
AUS
23h 38m
2 stops
Spirit Airlines Logo
11:34 am - 4:26 pm
AUS
-
PHL
27h 52m
3 stops
$255Spirit Airlines
Fri, Mar 6 - Mon, Mar 9
Frontier Logo
5:30 am - 3:40 pm
PHL
-
AUS
11h 10m
1 stop
Frontier Logo
9:29 pm - 9:06 am
AUS
-
PHL
10h 37m
1 stop
$256Frontier
Thu, Feb 12 - Fri, Feb 13
Spirit Airlines Logo
8:18 am - 12:24 am
PHL
-
AUS
17h 06m
1 stop
Spirit Airlines Logo
4:59 pm - 8:39 am
AUS
-
PHL
14h 40m
1 stop
$257Spirit Airlines
Thu, Mar 26 - Thu, Apr 2
Frontier Logo
5:30 am - 3:40 pm
PHL
-
AUS
11h 10m
1 stop
Frontier Logo
10:58 pm - 5:31 am
AUS
-
PHL
29h 33m
1 stop
$258Frontier
Thu, Feb 12 - Sun, Mar 8

Spirit Airlines flights from Philadelphia to Austin

Our best Spirit Airlines deals on Philadelphia to Austin flight tickets
Spirit Airlines
Mar 7
PHL7:46 pmPhiladelphia
14h 43m
2 stops
AUS9:29 amAustin Bergstrom
Mar 12
AUS6:12 amAustin Bergstrom
15h 40m
2 stops
PHL10:52 pmPhiladelphia
$252
Spirit Airlines
Mar 23
PHL6:08 pmPhiladelphia
30h 51m
3 stops
AUS11:59 pmAustin Bergstrom
Mar 25
AUS5:50 amAustin Bergstrom
16h 02m
3 stops
PHL10:52 pmPhiladelphia
$254
Spirit Airlines
Mar 6
PHL5:26 pmPhiladelphia
23h 38m
2 stops
AUS4:04 pmAustin Bergstrom
Mar 9
AUS11:34 amAustin Bergstrom
27h 52m
3 stops
PHL4:26 pmPhiladelphia
$255

Frontier flights from Philadelphia to Austin

Our best Frontier deals on Philadelphia to Austin flight tickets
Frontier
Feb 12
PHL5:30 amPhiladelphia
11h 10m
1 stop
AUS3:40 pmAustin Bergstrom
Feb 13
AUS9:29 pmAustin Bergstrom
10h 37m
1 stop
PHL9:06 amPhiladelphia
$256
Frontier
Feb 9
PHL5:30 amPhiladelphia
12h 32m
1 stop
AUS5:02 pmAustin Bergstrom
Feb 9
AUS8:22 pmAustin Bergstrom
14h 31m
2 stops
PHL11:53 amPhiladelphia
$257
Frontier
Feb 12
PHL5:30 amPhiladelphia
11h 10m
1 stop
AUS3:40 pmAustin Bergstrom
Mar 8
AUS10:58 pmAustin Bergstrom
29h 33m
1 stop
PHL5:31 amPhiladelphia
$258

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 February 3, 2026.
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

Thu 2/19

5:30 am-3:40 pm

1 stop11h 10m

Austin Bergstrom

Sun 2/22

10:16 am-4:37 pm

1 stop29h 21m

$246

PhiladelphiaAustin

PHL - AUS

PHLAUS

Philadelphia

Thu 3/26

5:05 am-12:24 am

2 stops20h 19m

Austin Bergstrom

Sun 3/29

8:36 pm-7:58 pm

1 stop22h 22m

$248

PhiladelphiaAustin

PHL - AUS

PHLAUS

Philadelphia

Thu 2/12

1:02 pm-9:04 am

2 stops21h 02m

Austin Bergstrom

Mon 2/16

7:15 am-8:44 am

1 stop24h 29m

$249

PhiladelphiaAustin

PHL - AUS

PHLAUS

Philadelphia

Sat 3/7

7:46 pm-9:29 am

2 stops14h 43m

Austin Bergstrom

Thu 3/12

6:12 am-10:52 pm

2 stops15h 40m

$252

PhiladelphiaAustin

PHL - AUS

PHLAUS

Philadelphia

Fri 2/20

8:06 am-8:53 pm

1 stop13h 47m

Austin Bergstrom

Sun 2/22

10:16 am-4:37 pm

1 stop29h 21m

$253

PhiladelphiaAustin

PHL - AUS

PHLAUS

Philadelphia

Fri 2/20

5:30 am-2:24 pm

1 stop9h 54m

Austin Bergstrom

Sat 2/21

4:59 pm-11:18 am

2 stops17h 19m

$254

PhiladelphiaAustin

PHL - AUS

PHLAUS

Philadelphia

Fri 3/6

5:26 pm-4:04 pm

2 stops23h 38m

Austin Bergstrom

Mon 3/9

11:34 am-4:26 pm

3 stops27h 52m

$255

PhiladelphiaAustin

PHL - AUS

PHLAUS

Philadelphia

Thu 2/12

5:30 am-3:40 pm

1 stop11h 10m

Austin Bergstrom

Fri 2/13

9:29 pm-9:06 am

1 stop10h 37m

$256

PhiladelphiaAustin

PHL - AUS

PHLAUS

Philadelphia

Thu 3/26

8:18 am-12:24 am

1 stop17h 06m

Austin Bergstrom

Thu 4/2

4:59 pm-8:39 am

1 stop14h 40m

$257

PhiladelphiaAustin

PHL - AUS

PHLAUS

Philadelphia

Thu 2/12

5:30 am-3:40 pm

1 stop11h 10m

Austin Bergstrom

Sun 3/8

10:58 pm-5:31 am

1 stop29h 33m

$258

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 $229.

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 $345. This is often the case because there is less demand to fly during this day of the week. When flying out on a Friday, the most expensive travel day of the week, you can expect to see flight prices from Philadelphia to Austin for around $426.

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 $356. 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 $436. 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 $375 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 February 2026, prices for Philadelphia to Austin flights are approximately 58% 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

$291

Fastest flight time

3h 55m

Direct flights

Every day

Airports in Austin

1 airport
The best one-way flight to Austin from Philadelphia in the past 72 hours is $291. The best round-trip flight deal from Philadelphia to Austin found on momondo in the last 72 hours is $440.
The fastest flight from Philadelphia to Austin takes 3h 55m
Direct flights go from Philadelphia to Austin every day.
There is 1 airport in Austin. From Philadelphia there are direct flights to 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 3h 55m 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 $102Free CancellationRating
5.7
3,051 reviews
Search Frontier flights
Spirit AirlinesPriceFrom $155Free CancellationRating
6.3
8,407 reviews
Search Spirit Airlines flights
SouthwestPriceFrom $158Free CancellationRating
8.0
4,272 reviews
Search Southwest flights
American AirlinesPriceFrom $185Free CancellationRating
7.2
11,218 reviews
Search American Airlines flights
DeltaPriceFrom $195Free CancellationRating
7.9
8,138 reviews
Search Delta flights
United AirlinesPriceFrom $196Free CancellationRating
7.4
9,236 reviews
Search United Airlines flights

  • American Airlines Flights From Philadelphia to Austin

    Across 13 American Airlines flights from Philadelphia to Austin this week, the average price was $429, with the best American Airlines deals starting from $185 round-trip. 11,216 users have rated American Airlines on momondo, with an average score of 7.2/10.

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
Pflugerville
Kyle
Seguin
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

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