PHL - SAT

$69 Find Cheap Flights from Philadelphia to San Antonio

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 San Antonio departing on 5/9. 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 San Antonio

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

Cheapest round-trip
$217
Overall average: $383
Delta
Sun 4/12Sun 4/19
PHL - SAT • 1 stop
Cheapest non-stop
$269
American Airlines
Fri 4/10Mon 4/13
PHL - SAT • Non-stop
Advice from real travelers
AI-powered summary based on content written by travel experts. AI can make mistakes.
PHL offers public transportation via SEPTA trains.
Take the #5 VIA bus from SAT for easy downtown access.
Expert advice
Expert advice
Expert advice
Expert advice
Top airlines
Delta
Cheapest • from $217 (round-trip)
Southwest
Best reviews • 8.0 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Every day
You can fly direct with American Airlines. Average duration is 0
Direct flights
Direct flights
+1
+1
Direct flights
Direct flights
+1
Avoid delays
American Airlines
Most punctual • 75% on-time
Morning flights
Best time • Fewest delays
Insights
Insights
Insights
Insights
Top layover airports
Denver (DEN)
Cheapest • Avg $194 (round-trip)
St. Louis (STL)
Shortest trip • 5h 27m (one-way)
Insights
Insights
Insights
Insights
When to book
5 weeks
in advance
Our data shows that travelers who book at least 5 weeks in advance save around 22% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
April
Cheapest • 18% price drop
May
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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We hope you love your trip to San Antonio!
Flight Deals
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Flight Deals

Cheap Flights from Philadelphia to San Antonio (PHL-SAT)

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

Sun, Apr 12 - Sun, Apr 19
Delta Logo
6:25 pm - 12:38 am
PHL
-
SAT
7h 13m
1 stop
Delta Logo
6:02 pm - 5:59 am
SAT
-
PHL
10h 57m
1 stop
$217Delta
Sun, Apr 19 - Sat, Apr 25
Frontier Logo
3:29 pm - 2:15 pm
PHL
-
SAT
23h 46m
2 stops
Frontier Logo
4:04 pm - 5:35 am
SAT
-
PHL
12h 31m
1 stop
$255Frontier
Fri, May 8 - Sat, May 9
Multiple Airlines Logo
10:39 am - 11:51 pm
PHL
-
SAT
14h 12m
2 stops
Multiple Airlines Logo
3:34 pm - 5:34 am
SAT
-
PHL
13h 00m
1 stop
$256Multiple Airlines
Fri, May 29 - Mon, Jun 1
Multiple Airlines Logo
1:57 pm - 11:51 pm
PHL
-
SAT
10h 54m
1 stop
Multiple Airlines Logo
11:30 am - 1:01 pm
SAT
-
PHL
24h 31m
2 stops
$257Multiple Airlines
Mon, Mar 23 - Fri, Mar 27
Frontier Logo
10:28 pm - 1:23 pm
PHL
-
SAT
15h 55m
1 stop
Frontier Logo
10:05 am - 5:31 am
SAT
-
PHL
18h 26m
1 stop
$260Frontier
Wed, May 13 - Mon, May 18
Spirit Airlines Logo
6:12 pm - 11:51 pm
PHL
-
SAT
6h 39m
1 stop
Spirit Airlines Logo
2:12 pm - 9:49 am
SAT
-
PHL
18h 37m
2 stops
$261Spirit Airlines
Tue, Mar 31 - Wed, Apr 8
Multiple Airlines Logo
6:10 am - 9:27 am
PHL
-
SAT
28h 17m
2 stops
Multiple Airlines Logo
10:22 am - 11:25 pm
SAT
-
PHL
12h 03m
1 stop
$262Multiple Airlines
Tue, Mar 31 - Tue, Apr 7
Multiple Airlines Logo
6:10 am - 9:27 am
PHL
-
SAT
28h 17m
2 stops
Multiple Airlines Logo
10:22 am - 8:39 am
SAT
-
PHL
21h 17m
1 stop
$263Multiple Airlines
Tue, May 5 - Wed, May 13
Multiple Airlines Logo
8:25 pm - 2:19 pm
PHL
-
SAT
18h 54m
1 stop
Multiple Airlines Logo
2:12 pm - 12:54 am
SAT
-
PHL
9h 42m
2 stops
$264Multiple Airlines
Mon, Mar 23 - Thu, Mar 26
Frontier Logo
7:14 pm - 1:23 pm
PHL
-
SAT
19h 09m
1 stop
Frontier Logo
6:45 am - 5:31 am
SAT
-
PHL
21h 46m
1 stop
$265Frontier
Booking Insights

KAYAK's insights & trends for Philadelphia to San Antonio flights

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

What’s the cheapest day of the week to fly from Philadelphia to San Antonio?

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

Your flight ticket price will generally be cheaper if you fly to San Antonio on a Saturday and more expensive on a Monday. On your return trip to Philadelphia, you should consider flying back on a Wednesday, and avoid Mondays for better deals.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Philadelphia to San Antonio, 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 San Antonio is April, where tickets cost $383 (return) on average. On the other hand, the most expensive months are November and December, where the average cost of round-trip tickets is $547 and $534 respectively.

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

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 $401, prices are generally cheapest when you fly direct.

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

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 San Antonio, 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 San Antonio, you should book around 5 weeks before departure, which saves you about 22% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 21 weeks before departure.

Expert advice

Expert advice for your flight from Philadelphia to San Antonio

 
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
Harriet Baskas

Harriet Baskas

Expert on PHL

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.

Brandon Schultz

Brandon Schultz

Expert on SAT

Brandon Schultz is an award-winning food and travel writer based in New York City. His work has appeared in Forbes, AAA, Thrillist, Travel + Leisure, and The Daily Meal, among many others, and he is the author of 6 books, including 3 cookbooks.

Good to know

Low seasonJanuary
Cheapest flight$69
Best time to beat the crowds but there is an average 1% increase in price.
Most popular time to fly with an average 6% increase in price.
Flight from Philadelphia to San Antonio

When to book flights from Philadelphia to San Antonio

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

  • Which family services are offered at Philadelphia International Airport?

    PHL has provided the Mamava Suites for nursing mothers visiting the airport. The suites feature a bench, power outlets, and a fold-down table. Each suite is lockable for privacy. You’ll find these privates suites in Terminal F, Terminal A-West, and the B/C Connector. PHL has also provided family washrooms with baby changing facilities throughout the landside and airside sections of the airport. There is also a play area for older kids with climbing structures and toys. The “Ready For Take-Off” play area is in Terminal A-East.

  • How can I get downtown from San Antonio International Airport?

    SAT is served by VIA bus route 5, which runs between the airport and downtown San Antonio. The trip takes about 30min, and you can take this bus from the airport bus stop. SuperShuttle also provides door-to-door services between the airport and downtown San Antonio hotels. You can buy these tickets from Terminal A’s baggage claim area. Taxis are available 24/7 outside the baggage claim areas of Terminals A and B. Taxis are metered, and reservations aren’t needed. If you want to self-drive, take a rental car from the counters in Terminal A’s baggage claim area.

  • Does San Antonio International Airport offer accessible services?

    Passengers with reduced mobility will get wheelchair assistance at SAT once they book these services via their airline. Reserved parking spaces are available for drivers showing proper identification. The airport also has accessible/ family restrooms in both terminals. Service animals are welcome at SAT, and low-vision passengers can be safely guided through the airport using the free Aira app. Hard-of-hearing passengers will have access to TTY telephones and visual paging services.

  • What are some things to do at Philadelphia International Airport?

    There are a lot of art exhibitions at PHL that you can check out. The art is distributed throughout the airport. You can watch planes take off and land from the observation areas in all seven terminals. The observation areas are all airside. PHL also has a library in the D/E Connector airside, where you can relax on lounge chairs and read your favorite books.

  • What is the cheapest flight from Philadelphia to San Antonio?

    In the last 3 days, the lowest price for a flight from Philadelphia to San Antonio was $69 for a one-way ticket and $217 for a round-trip.

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

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

  • Which airports will I be using when flying from Philadelphia to San Antonio?

    Philadelphia and San Antonio are both served by 1 main airport. You will leave Philadelphia from Philadelphia and will be arriving at San Antonio.

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

    American Airlines, and Delta offer inflight Wi-Fi service on the Philadelphia to San Antonio flight route.

  • Which aircraft models fly most regularly from Philadelphia to San Antonio?

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

  • Which airline alliances offer flights from Philadelphia to San Antonio?

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

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

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

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

    The two airlines most popular with KAYAK users for flights from Philadelphia to San Antonio are Southwest and Delta. With an average price for the route of $455 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 $448 and an overall rating of 7.9.

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

    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 San Antonio.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to San Antonio 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 San Antonio?

    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 San Antonio with an airline and back to Philadelphia with another airline. Booking your flights between Philadelphia and SAT 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 San Antonio?

    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 San Antonio 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 San Antonio

  • Looking for a cheap flight? 25% of our users found flights on this route for $467 or less round-trip.
  • Philadelphia International Airport (PHL) is a large airport with seven terminals. There is a lot of walking to reach the departure gates, but the airport has provided courtesy shuttles running every 10min for inter-terminal transportation.
  • San Antonio International Airport (SAT) is a pet-friendly airport. You can take your pet for a potty break at the following pet relief areas: Terminal B next to the west exit and in the indoor relief areas airside in both terminals.
  • Around 660 kg of carbon is emitted on flights from Philadelphia to San Antonio. You can fly more sustainably with United Airlines, which provides a flight that emits 37% less carbon per passenger.
  • United Airlines is the only airline with a lounge at SAT. You can access United Club by paying at the door and showing your flight ticket. The lounge is airside between Gates B3 and B5.
  • Unwind with a massage from XpresSpa at PHL before your flight. XpresSpa offers express spa services, including facials, manicures, massages, and pedicures, all taking less than 30min. You’ll find XpresSpa in Terminals C, D, and F at PHL.

Prefer to fly direct from Philadelphia to San Antonio?

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

Direct departures

Philadelphia to San Antonio

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

San Antonio 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 San Antonio

 
See real verified KAYAK customer reviews for airlines flying from Philadelphia to San Antonio. 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 San Antonio? 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 4309 reviews
7.5Entertainment
8.1Boarding
7.0Food
8.6Crew
8.0Comfort
Airline reviews

Flight was hours late, unable to sit next to spouse, I have had so much better experiences. Substantially better, only saving grace was that it was a short flight.

4.0 Okaybyron, Feb 2026
DAL - SAT
Read more Southwest reviews

Flight was hours late, unable to sit next to spouse, I have had so much better experiences. Substantially better, only saving grace was that it was a short flight.

An entire day of delays. Cost lots of money. Meals and a hotel.

Only downside was the legroom and seat width, which is always a problem unless I spend more for a premium seat.

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

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.

Good flight. Connector flight was delayed so made a short turnaround in Atlanta which was stressful. Otherwise, great crew, Staff in ATL was very informative about the delay and ensured people their connections were fine. Notified the ones that were not. Great communication.

The flight went very well, but the flight attendants didn't serve and food or drinks other than 1st class due to rough air but to be honest it wasn't that bumpy and I felt that they could've at least offered water and coffee perhaps. Also serving 1st class only is a bad look. I've been in 1st class many times and I would've felt that if the turbulence was too rough for the main cabin, it would be too rough for 1st class too.

There was an unruly family behind us that made the short flight miserable!!! The cabin crew did nothing to contain it.

My seatback screen didn’t work so that sucked because that’s what I was going to do on the plane.

Left a few minutes early. Got in 15 minutes early. Very attentive service on board. Very organized boarding.

The whole experience was excellent. As it most often is with Delta

Cabin was not pressurized properly. Several passengers had respiratory difficulties.

I was happy that I was able to get a last minute flight but unfortunately my seat was a middle seat. Even with Delta Comfort I wasn't comfortable

There’s not much to say about a one hour flight. This is a connection from LA to RNO that I missed the previous night due to a mechanical check delay on my originating flight from JFK to LAX. The short flight itself was fine. Instructions from the pilot and crew were per usual. The coffee was barely lukewarm, which possibly was purposeful so we would down it quickly. Bags were already on carousel upon reaching baggage claim, which was excellent.

Flight was warm for first few hours and quite rough

Good flight. Efficient boarding and competent flight crew. No problems until we arrived at our destination gate. We were early so there was an aircraft at the gate that had to move before we could pull in. Then, due to the type of aircraft we flew, the cabin door could not be opened until some luggage from the cargo bay was offloaded to preserve center of gravity characteristics. So, that further delayed deplaning. Despite being 20 minutes early on landing, we ended up being 5 to 10 minutes late after all the delays.

This trip did not start off well. The inbound flight was delayed about 20 minutes. Then, after initial onboarding, the passengers had to deplane due to a mechanical problem. That took about 30 minutes to fix and be cleared. Then, reboarding was chaotic. It took a long time to sort passengers and two passengers on standby were ticketed but there was no seat. So, they had to deplane. One of the flight crew was trying to help passengers figure out a place to put their carry-on bags and that took more time. In the end, our scheduled 10:30 am departure did not actually take off until about 12:05 pm CST. The flight itself was long but we got to Houston. Some passengers missed their connecting flights and had to rebook. Not the best of flights I've had.

Complimentary light meal would be appreciated. But great flight crew service on all legs

Everything was great except for the boarding process. Everyone is lining up all at the same time and it’s hard to tell between the groups as they are way too large.

Very old flight - time to retire it for newer airplanes

Do not like the size of the overhead bin. I think staff should monitor the size of suitcases that are being carried on by passengers to ensure they meet the size requirement.

Everything except the food and entertainment. It was a great experience though

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

Check-in, boarding and the flight from Phoenix to Houston was quick and easy. The flight from Houston to Shreveport was delayed 5 hours. It was frustrating but I think United handled it the best they could.

The staff was hospitable and professional. The seat had a bit of wear. The winner shade was stuck 1/4 open. I received the best of both worlds. The morning sun was able to come in and blind the screen i was trying to use while at the same time it was too low to look out and enjoy the view. Rather embarrassing for a 1st class ticket.

Delayed initially because they couldn’t print the flight details. Poor instruction on delay. When I got on the plane the flight attendant argued with me about whether my carry on would fit (it did, although she didn’t acknowledge that). No greeting (other than arguing with me) getting on or off the plane.

Beverage service was not good. Also just one service in 5 hr 30 min flight. No ask fir water ir anything beside one time beverage service.

They are always late and seats was also not having working charger

This flight captain and crew were amazing, started ahead of time of departure and reached 30 mins before arrival time. Amazing!

Long delays, lack of information about the status of the flight. The flight was delayed 4 times.

Everything about the flight was lovely. My only suggestion would be to offer a few more options of tv series from Apple TV or HBO.

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

Gate not determined until I got to the airport - hard to plan the trip to the airport.

Our flight was canceled. I will never use Kayak nor Frontier for travel again. The entire experience was a headache.

Frontier.. nickel and dime add-ons. Flight late, on time, late again, last minute gate change, arrival gate required a shuttle to the terminal. They sure keep you guessing.. if you like a little chaos and airport anxiety, this is the airline for you!

This is my second time flying with Frontier. My current experience was very favorable. The staff from the gate to the plane was friendly, warm and professional. The food options lacked in my opinion. This area needs some attention in my opinion.

First of all we hade waited 3 hours in the airplane waiting to leave. Second the return schedule was changed and it messed up my entire vaction. I won't buy never again another flight and recommend to nobody traveling with them.

There was no food and no entertainment, so I'm not sure why these are even in the survey, as my understanding is frontier does not ever offer food without a few, not even a snack, and there are no screens so unless the flight safety talk is our entertainment why ask how we liked it?. One of the flight attendants say in the back of the plane as people filed in to their seats, yelling orders about where to put baggage and telling people to hurry up. It was the least professional experience I've ever had on a flight.

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.

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

Information on your arrival and departure airports