How long is the flight from San Antonio to Philadelphia?

There are many flights that can get you from San Antonio to Philadelphia in 8h 25m. Fly via Spirit Airlines to get the fastest option. The distance between San Antonio and Philadelphia is about 1493 mi.

What are the cheapest airlines flying from San Antonio to Philadelphia round-trip?

Flying on Spirit Airlines is currently your cheapest option to Philadelphia, with prices starting at $115. Additional round-trip tickets that might be worth considering are offered by Frontier and Delta, with the lowest prices starting at $141 and $208, respectively. These flights start at 73% lower than the current average price 3 months from now.

What are the cheapest airlines to fly from San Antonio to Philadelphia one-way?

To fly one-way, consider booking your trip with Frontier, which is currently one of the cheapest options available, starting at $81. Spirit Airlines flights start at $84 while deals on Delta start at $133 one-way.

In terms of precipitation, rainfall in Philadelphia ranges from 2.7 - 4.4 inches per month. July is typically the wettest month, when rainfall can reach 4.4 in. February is typically the driest time to visit Philadelphia when rainfall is around 2.7 in.

If weather is an important factor for your trip to Philadelphia, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 78.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 33.8 F).

What are the cheapest flights from San Antonio to Philadelphia?

On average you can expect to pay $1,492 for a flight from San Antonio to Philadelphia. The cheapest flight overall is $1,241 while the most popular route, (San Antonio - Philadelphia) is currently priced at $137.

What are the most popular airlines that fly from San Antonio to Philadelphia?

Consider American Airlines, Southwest or Delta when booking your flight. These represent the most popular airlines when flying from San Antonio to Philadelphia.

Most accurate provider : When it comes to deals on San Antonio-Philadelphia flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on San Antonio-Philadelphia flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from San Antonio-Philadelphia flight searches over the past month and is updated monthly.

Most trusted provider : When it comes to deals on San Antonio-Philadelphia flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for San Antonio-Philadelphia flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Can I find deals for flights from San Antonio to Philadelphia that include hotel bookings?

Yes. In addition to deals on San Antonio to Philadelphia flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from San Antonio to Philadelphia?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from San Antonio to Philadelphia.

Can I find deals for business class flights from San Antonio to Philadelphia?

Yes. Cheapflights offers flight deals from San Antonio to Philadelphia by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$56+ Flights from San Antonio to Philadelphia

Home Search by date Vacation packages Hotels Flight deals Car rental Travel tips & news

Find cheap flights from San Antonio to Philadelphia with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheapflights Tip: The best prices from San Antonio to Philadelphia are usually found in September or October, booked 70 days in advance, depart on a Saturday or Friday and return on a Saturday

Cheap flight deals from San Antonio to Philadelphia

Cheapest flights from San Antonio to Philadelphia
Explore the most affordable flight options available from San Antonio to Philadelphia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 25, 2025.

Thu 12/256:45 amSAT - PHL

1 stop21h 46mFrontier

Sun 1/48:36 pmPHL - SAT

1 stop28h 41mFrontier

Deal found 12/23

$322

Thu 12/256:45 amSAT - PHL

1 stop21h 46mFrontier

Sat 1/38:36 pmPHL - SAT

1 stop15h 45mFrontier

Deal found 12/22

$329

Fri 12/265:56 pmSAT - PHL

1 stop5h 45mFrontier

Mon 1/126:00 amPHL - SAT

1 stop14h 03mFrontier

Deal found 12/24

$352

Fri 12/267:11 pmSAT - PHL

1 stop28h 29mFrontier

Sat 1/103:53 pmPHL - SAT

1 stop27h 25mFrontier

Deal found 12/24

$353

Sat 12/2712:18 pmSAT - PHL

1 stop16h 13mFrontier

Sun 1/48:36 pmPHL - SAT

1 stop15h 45mFrontier

Deal found 12/24

$378

Fri 12/265:56 pmSAT - PHL

1 stop5h 45mFrontier

Sun 1/116:00 amPHL - SAT

1 stop13h 18mFrontier

Deal found 12/24

$387

Fri 12/266:45 amSAT - PHL

1 stop21h 46mFrontier

Thu 1/18:36 pmPHL - SAT

1 stop28h 41mFrontier

Deal found 12/23

$394

Fri 12/265:56 pmSAT - PHL

1 stop5h 45mMultiple Airlines

Tue 1/68:54 pmPHL - SAT

2 stops15h 56mMultiple Airlines

Deal found 12/23

$397

Fri 12/267:11 pmSAT - PHL

1 stop16h 21mMultiple Airlines

Sat 1/106:00 amPHL - SAT

2 stops18h 52mMultiple Airlines

Deal found 12/24

$406

Thu 12/2511:30 amSAT - PHL

2 stops11h 26mMultiple Airlines

Sun 1/48:36 pmPHL - SAT

1 stop28h 41mMultiple Airlines

Deal found 12/23

$414

Fri 12/262:39 pmSAT - PHL

1 stop28h 46mMultiple Airlines

Tue 1/131:40 pmPHL - SAT

2 stops35h 12mMultiple Airlines

Deal found 12/24

$432

Best flights from San Antonio to Philadelphia
Discover carefully curated flight deals from San Antonio to Philadelphia that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 25, 2025.

Tue 2/2410:26 amSAT - PHL

1 stop8h 25mSpirit Airlines

Wed 2/256:16 pmPHL - SAT

1 stop16h 14mSpirit Airlines

Deal found 12/24

$137

Fri 2/610:35 amSAT - PHL

1 stop21h 12mMultiple Airlines

Sun 2/83:25 pmPHL - SAT

1 stop19h 05mMultiple Airlines

Deal found 12/24

$168

Thu 1/87:14 pmSAT - PHL

1 stop12h 23mMultiple Airlines

Mon 1/123:56 pmPHL - SAT

1 stop8h 56mMultiple Airlines

Deal found 12/22

$173

Wed 1/146:30 amSAT - PHL

2 stops16h 20mSpirit Airlines

Wed 1/216:00 amPHL - SAT

2 stops18h 52mSpirit Airlines

Deal found 12/24

$188

Wed 1/72:39 pmSAT - PHL

1 stop7h 38mMultiple Airlines

Mon 1/126:00 amPHL - SAT

1 stop14h 03mMultiple Airlines

Deal found 12/22

$196

Sat 1/2410:35 amSAT - PHL

1 stop8h 26mSpirit Airlines

Fri 1/306:00 amPHL - SAT

2 stops18h 52mSpirit Airlines

Deal found 12/23

$218

Wed 1/72:39 pmSAT - PHL

1 stop8h 36mMultiple Airlines

Sat 1/103:53 pmPHL - SAT

1 stop27h 25mMultiple Airlines

Deal found 12/23

$202

Mon 1/1210:35 amSAT - PHL

1 stop12h 56mMultiple Airlines

Fri 1/166:11 pmPHL - SAT

1 stop16h 29mMultiple Airlines

Deal found 12/24

$207

Thu 1/298:24 pmSAT - PHL

2 stops22h 24mMultiple Airlines

Sun 2/13:34 pmPHL - SAT

1 stop18h 56mMultiple Airlines

Deal found 12/22

$213

Tue 3/1710:26 amSAT - PHL

1 stop12h 32mMultiple Airlines

Tue 3/245:05 amPHL - SAT

1 stop9h 18mMultiple Airlines

Deal found 12/23

$231

Last-minute flights from San Antonio to Philadelphia
Discover last-minute flight deals from San Antonio to Philadelphia. Data last updated December 25, 2025 and is based on user searches.

Wed 1/72:39 pmSAT - PHL

1 stop7h 38mMultiple Airlines

Mon 1/126:00 amPHL - SAT

1 stop14h 03mMultiple Airlines

Deal found 12/22

$196

Wed 1/72:39 pmSAT - PHL

1 stop8h 36mMultiple Airlines

Sat 1/103:53 pmPHL - SAT

1 stop27h 25mMultiple Airlines

Deal found 12/23

$202

Thu 1/87:14 pmSAT - PHL

1 stop12h 23mMultiple Airlines

Mon 1/123:56 pmPHL - SAT

1 stop8h 56mMultiple Airlines

Deal found 12/22

$173

Tue 1/136:30 amSAT - PHL

2 stops16h 20mSpirit Airlines

Tue 1/206:00 amPHL - SAT

2 stops18h 52mSpirit Airlines

Deal found 12/23

$158

Tue 1/136:30 amSAT - PHL

1 stop13h 07mMultiple Airlines

Sun 1/1812:24 pmPHL - SAT

1 stop22h 16mMultiple Airlines

Deal found 12/23

$194

Wed 1/146:30 amSAT - PHL

2 stops16h 20mSpirit Airlines

Wed 1/216:00 amPHL - SAT

2 stops18h 52mSpirit Airlines

Deal found 12/24

$188

Fri 1/1610:35 amSAT - PHL

1 stop21h 12mMultiple Airlines

Sun 1/1812:24 pmPHL - SAT

1 stop22h 16mMultiple Airlines

Deal found 12/24

$197

Thu 1/2210:35 amSAT - PHL

1 stop8h 26mMultiple Airlines

Sun 1/253:34 pmPHL - SAT

1 stop19h 06mMultiple Airlines

Deal found 12/24

$169

Thu 1/2910:35 amSAT - PHL

1 stop12h 15mMultiple Airlines

Sun 2/13:34 pmPHL - SAT

1 stop18h 56mMultiple Airlines

Deal found 12/22

$141

Thu 1/2910:35 amSAT - PHL

1 stop12h 15mSpirit Airlines

Sat 1/316:11 pmPHL - SAT

1 stop16h 19mSpirit Airlines

Deal found 12/22

$151

Fri 1/3010:35 amSAT - PHL

1 stop21h 12mMultiple Airlines

Sun 2/13:34 pmPHL - SAT

1 stop18h 56mMultiple Airlines

Deal found 12/23

$154

One-way flights from San Antonio to Philadelphia
Search for one-way flight options from San Antonio to Philadelphia. Find affordable one-way fares based on user searches. Data last updated December 25, 2025.

Thu 1/2210:35 amSAT - PHL

1 stop12h 15mSpirit Airlines

Deal found 12/23

$56

Sat 1/2410:35 amSAT - PHL

1 stop8h 26mSpirit Airlines

Deal found 12/24

$68

Mon 2/2310:26 amSAT - PHL

1 stop21h 18mSpirit Airlines

Deal found 12/25

$72

Sat 1/2410:35 amSAT - PHL

1 stop12h 55mMultiple Airlines

Deal found 12/23

$76

Fri 1/2310:35 amSAT - PHL

1 stop11h 34mMultiple Airlines

Deal found 12/23

$81

Fri 1/2310:35 amSAT - PHL

1 stop21h 12mSpirit Airlines

Deal found 12/24

$85

Sat 2/2110:26 amSAT - PHL

1 stop21h 18mSpirit Airlines

Deal found 12/23

$87

Thu 2/191:57 pmSAT - PHL

1 stop6h 56mFrontier

Deal found 12/23

$91

Fri 1/1610:35 amSAT - PHL

1 stop12h 15mSpirit Airlines

Deal found 12/24

$93

Tue 2/246:00 amSAT - PHL

2 stops16h 50mSpirit Airlines

Deal found 12/25

$94

Tue 1/206:30 amSAT - PHL

2 stops27h 44mSpirit Airlines

Deal found 12/23

$95

Find flight deals from San Antonio to Philadelphia

Most accurate provider	eDreams 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$137 (Kiwi.com)
One-way from	$56 (Super.com)
Popular in	June
Cheapest in	September
Average price	$387
Good round-trip deal	$1,438 or less

Provider with most accurate pricing for San Antonio-Philadelphia flight deals.

Search Deals

Provider most trusted by Cheapflights users for San Antonio-Philadelphia flights.

Search Deals

From San Antonio to Philadelphia

Search Deals

One-way flight from San Antonio to Philadelphia

Search Deals

Highest demand for flights based on searches. 10% potential increase in price ($48 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 1% potential price decrease ($8 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in December 2025

Search Deals

Price to beat on a round-trip flight from San Antonio to Philadelphia.

Search Deals

Cheapflights Fare Finder

Use the filters below to find and compare flights from San Antonio to Philadelphia that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

San AntonioPhiladelphia

SAT - PHL

SATPHL

San Antonio

Tue 2/24

10:26 am-7:51 pm

1 stop8h 25m

Philadelphia

Wed 2/25

6:16 pm-9:30 am

1 stop16h 14m

$137

San AntonioPhiladelphia

SAT - PHL

SATPHL

San Antonio

Fri 2/6

10:35 am-8:47 am

1 stop21h 12m

Philadelphia

Sun 2/8

3:25 pm-9:30 am

1 stop19h 05m

$168

San AntonioPhiladelphia

SAT - PHL

SATPHL

San Antonio

Thu 1/8

7:14 pm-8:37 am

1 stop12h 23m

Philadelphia

Mon 1/12

3:56 pm-11:52 pm

1 stop8h 56m

$173

San AntonioPhiladelphia

SAT - PHL

SATPHL

San Antonio

Wed 1/14

6:30 am-11:50 pm

2 stops16h 20m

Philadelphia

Wed 1/21

6:00 am-11:52 pm

2 stops18h 52m

$188

San AntonioPhiladelphia

SAT - PHL

SATPHL

San Antonio

Wed 1/7

2:39 pm-11:17 pm

1 stop7h 38m

Philadelphia

Mon 1/12

6:00 am-7:03 pm

1 stop14h 03m

$196

San AntonioPhiladelphia

SAT - PHL

SATPHL

San Antonio

Wed 1/7

2:39 pm-12:15 am

1 stop8h 36m

Philadelphia

Sat 1/10

3:53 pm-6:18 pm

1 stop27h 25m

$202

San AntonioPhiladelphia

SAT - PHL

SATPHL

San Antonio

Mon 1/12

10:35 am-12:31 am

1 stop12h 56m

Philadelphia

Fri 1/16

6:11 pm-9:40 am

1 stop16h 29m

$207

San AntonioPhiladelphia

SAT - PHL

SATPHL

San Antonio

Thu 1/29

8:24 pm-7:48 pm

2 stops22h 24m

Philadelphia

Sun 2/1

3:34 pm-9:30 am

1 stop18h 56m

$213

San AntonioPhiladelphia

SAT - PHL

SATPHL

San Antonio

Sat 1/24

10:35 am-8:01 pm

1 stop8h 26m

Philadelphia

Fri 1/30

6:00 am-11:52 pm

2 stops18h 52m

$218

San AntonioPhiladelphia

SAT - PHL

SATPHL

San Antonio

Tue 3/17

10:26 am-11:58 pm

1 stop12h 32m

Philadelphia

Tue 3/24

5:05 am-1:23 pm

1 stop9h 18m

$231

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/25

Showing 1-10 of 19 results

Compare providers for flights from San Antonio to Philadelphia

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from San Antonio to Philadelphia in December.

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy2 stars	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*1 star
eDreams	Price Accuracy3 stars	Trust Score*3 stars
Priceline	Price Accuracy1 star	Trust Score*3 stars
Cheapflightsfares	Price Accuracy3 stars	Trust Score*2 stars
Kiwi.com	Price Accuracy3 stars	Trust Score*3 stars
JustAirTicket	Price Accuracy-	Trust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

Most accurate provider: When it comes to deals on San Antonio-Philadelphia flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on San Antonio-Philadelphia flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from San Antonio-Philadelphia flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on San Antonio-Philadelphia flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for San Antonio-Philadelphia flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from San Antonio to Philadelphia

Have a flexible travel schedule? Discover the best time to fly to Philadelphia from San Antonio with our price prediction graph.

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from San Antonio to Philadelphia

How far ahead should I book a flight from San Antonio to Philadelphia?

Booking 70 days in advance of your planned departure date is, on average, the best time to get cheap flights from San Antonio to Philadelphia. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from San Antonio to Philadelphia?

Currently, January is the cheapest month in which you can book a flight from San Antonio to Philadelphia (average of $80). Flying from San Antonio to Philadelphia in July is currently the most expensive (average of $162). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from SAT to PHL?

A simple way to save on the total cost of your ticket is to fly from San Antonio to Philadelphia in the evening. If you’re flexible enough to do this you can expect to save up to 71% on your trip compared to booking a flight at noon.

What is the cheapest day to fly from San Antonio to Philadelphia?

Travelers seeking maximum savings on their San Antonio to Philadelphia flight should consider departing on Tuesday afternoons when fares are most often at their lowest. Monday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing Philadelphia

See what other customers who have flown with Southwest, Delta, and American Airlines from San Antonio to Philadelphia have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Southwest

8.0

Very good

4,257 reviews

Reviews

1 / 20

2.0

Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

Southwest

8.0

Very good

4,257 reviews

Southwest

8.0

Very good

4,257 reviews

Reviews

1 / 20

2.0

Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

Delta

7.9

Good

8,011 reviews

Southwest

8.0

Very good

4,257 reviews

Reviews

1 / 20

2.0

Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

American Airlines

7.2

Good

11,056 reviews

Southwest

8.0

Very good

4,257 reviews

Reviews

1 / 20

2.0

Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

Spirit Airlines

6.3

Okay

8,203 reviews

Southwest

8.0

Very good

4,257 reviews

Reviews

1 / 20

2.0

Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

Frontier

5.8

Fair

3,069 reviews

Southwest

8.0

Very good

4,257 reviews

Reviews

1 / 20

2.0

Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

Related info for your journey

How long is the flight from San Antonio to Philadelphia?
There are many flights that can get you from San Antonio to Philadelphia in 8h 25m. Fly via Spirit Airlines to get the fastest option. The distance between San Antonio and Philadelphia is about 1493 mi.
What are the cheapest airlines flying from San Antonio to Philadelphia round-trip?
Flying on Spirit Airlines is currently your cheapest option to Philadelphia, with prices starting at $115. Additional round-trip tickets that might be worth considering are offered by Frontier and Delta, with the lowest prices starting at $141 and $208, respectively. These flights start at 73% lower than the current average price 3 months from now.
What are the cheapest airlines to fly from San Antonio to Philadelphia one-way?
To fly one-way, consider booking your trip with Frontier, which is currently one of the cheapest options available, starting at $81. Spirit Airlines flights start at $84 while deals on Delta start at $133 one-way.
What are the cheapest flights from San Antonio to Philadelphia?
On average you can expect to pay $1,492 for a flight from San Antonio to Philadelphia. The cheapest flight overall is $1,241 while the most popular route, (San Antonio - Philadelphia) is currently priced at $137.
Can I find deals for flights from San Antonio to Philadelphia that include hotel bookings?
Yes. In addition to deals on San Antonio to Philadelphia flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from San Antonio to Philadelphia?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from San Antonio to Philadelphia.
Can I find deals for business class flights from San Antonio to Philadelphia?
Yes. Cheapflights offers flight deals from San Antonio to Philadelphia by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from San Antonio to Philadelphia?
Currently, January is the cheapest month in which you can book a flight from San Antonio to Philadelphia (average of $80). Flying from San Antonio to Philadelphia in July is currently the most expensive (average of $162). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Wildwood

Pottstown

King of Prussia

Reading

Ocean City

Cherry Hill

Lewes

Dewey Beach

Ephrata

Camden

Vineland

Milford

Dover

Elkton

Essington

Willow Grove

New Castle

Millville

Newark

Chester

Browse thousands of different options on Cheapflights for your next trip

Top 6 airlines flying from San Antonio to Philadelphia

Airline	Cheapest	Average	Flexibility	On-time
Frontier	Cheapest$141	Average$258	FlexibilityNo cancel fee	On-time62%
Spirit Airlines	Cheapest$169	Average$257	FlexibilityNo cancel fee	On-time65%
Delta	Cheapest$236	Average$417	FlexibilityNo cancel fee	On-timeN/A
Southwest	Cheapest$296	Average$443	FlexibilityNo cancel fee	On-time63%
United Airlines	Cheapest$316	Average$480	FlexibilityNo cancel fee	On-time69%
American Airlines	Cheapest$338	Average$456	FlexibilityNo cancel fee	On-time71%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.

$56+ Cheap flights from San Antonio to Philadelphia (SAT - PHL)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/22. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from San Antonio to Philadelphia with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheapflights Tip: The best prices from San Antonio to Philadelphia are usually found in September or October, booked 70 days in advance, depart on a Saturday or Friday and return on a Saturday

Cheap flight deals from San Antonio to Philadelphia

Cheapest flights from San Antonio to PhiladelphiaExplore the most affordable flight options available from San Antonio to Philadelphia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 25, 2025.

Explore the most affordable flight options available from San Antonio to Philadelphia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 25, 2025.

Find flight deals from San Antonio to Philadelphia

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Good round-trip deal

Cheapflights Fare Finder

Use the filters below to find and compare flights from San Antonio to Philadelphia that are best for you.

Compare providers for flights from San Antonio to Philadelphia

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from San Antonio to Philadelphia in December.

Best time to book a flight from San Antonio to Philadelphia

Have a flexible travel schedule? Discover the best time to fly to Philadelphia from San Antonio with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from San Antonio to Philadelphia

How far ahead should I book a flight from San Antonio to Philadelphia?

What is the cheapest month to book a flight from San Antonio to Philadelphia?

What is the cheapest time of day to fly from SAT to PHL?

What is the cheapest day to fly from San Antonio to Philadelphia?

Reviews of airlines servicing Philadelphia

See what other customers who have flown with Southwest, Delta, and American Airlines from San Antonio to Philadelphia have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from San Antonio to Philadelphia. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

How long is the flight from San Antonio to Philadelphia?

What are the cheapest airlines flying from San Antonio to Philadelphia round-trip?

What are the cheapest airlines to fly from San Antonio to Philadelphia one-way?

What are the cheapest flights from San Antonio to Philadelphia?

Can I find deals for flights from San Antonio to Philadelphia that include hotel bookings?

How can I find direct flights from San Antonio to Philadelphia?

Can I find deals for business class flights from San Antonio to Philadelphia?

What is the cheapest month to book a flight from San Antonio to Philadelphia?

Traveling to a place near Philadelphia?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for San Antonio to Philadelphia

See prices for flight routes from nearby airports that may be better suited for you.

Top 6 airlines flying from San Antonio to Philadelphia

100% Free

Book with Flexibility

Travel Smart

Cheapest flights from San Antonio to Philadelphia
Explore the most affordable flight options available from San Antonio to Philadelphia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 25, 2025.