PHL - SAT

$65 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 5/5. 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
$219
Typical prices: $507-$304
Multiple Airlines
Sat 4/18Mon 4/20
PHL - SAT • 1 stop
Cheapest non-stop
$400
American Airlines
Wed 6/3Wed 7/8
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
Cheapest • from $221 (round-trip)
Best reviews • 8.0 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
You can fly direct with American Airlines. Average duration is 4h 09m
Direct flights
Direct flights
+1
+1
Direct flights
Direct flights
+1
Avoid delays
Most punctual • 75% on-time
Best time • Fewest delays
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg $188 (round-trip)
Shortest trip • 5h 27m (one-way)
Insights
Insights
Insights
Insights
When to book
in advance
Our data shows that travelers who book at least 8 weeks in advance save around 30% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 22% price drop
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

Sat, Apr 18 - Mon, Apr 20
Multiple Airlines Logo
7:30 am - 5:35 pm
PHL
-
SAT
11h 05m
1 stop
Multiple Airlines Logo
2:12 pm - 9:49 am
SAT
-
PHL
18h 37m
2 stops
$219Multiple Airlines
Sat, Apr 18 - Tue, Apr 21
Multiple Airlines Logo
5:45 am - 1:17 pm
PHL
-
SAT
8h 32m
2 stops
Multiple Airlines Logo
4:04 pm - 5:34 am
SAT
-
PHL
12h 30m
1 stop
$220Multiple Airlines
Wed, May 13 - Sun, May 17
Frontier Logo
8:35 pm - 6:59 pm
PHL
-
SAT
23h 24m
1 stop
Frontier Logo
7:54 pm - 5:37 am
SAT
-
PHL
8h 43m
1 stop
$221Frontier
Tue, Apr 21 - Sat, Apr 25
Multiple Airlines Logo
6:50 am - 3:53 pm
PHL
-
SAT
34h 03m
2 stops
Multiple Airlines Logo
6:00 am - 3:31 pm
SAT
-
PHL
8h 31m
1 stop
$225Multiple Airlines
Tue, Apr 21 - Sun, Apr 26
Frontier Logo
8:36 pm - 3:53 pm
PHL
-
SAT
20h 17m
1 stop
Frontier Logo
2:59 pm - 5:34 am
SAT
-
PHL
13h 35m
1 stop
$226Frontier
Tue, Apr 21 - Sat, Apr 25
Frontier Logo
8:36 pm - 3:53 pm
PHL
-
SAT
20h 17m
1 stop
Frontier Logo
4:04 pm - 5:35 am
SAT
-
PHL
12h 31m
1 stop
$227Frontier
Wed, May 6 - Sat, May 16
Frontier Logo
8:35 pm - 6:59 pm
PHL
-
SAT
23h 24m
1 stop
Frontier Logo
7:54 pm - 1:06 am
SAT
-
PHL
28h 12m
2 stops
$229Frontier
Wed, May 13 - Mon, May 18
Frontier Logo
10:40 am - 8:14 pm
PHL
-
SAT
10h 34m
1 stop
Frontier Logo
7:54 pm - 5:37 am
SAT
-
PHL
8h 43m
1 stop
$230Frontier
Sun, Apr 19 - Wed, Apr 22
Frontier Logo
5:05 am - 1:06 pm
PHL
-
SAT
33h 01m
2 stops
Frontier Logo
4:49 pm - 5:34 am
SAT
-
PHL
11h 45m
1 stop
$232Frontier
Sun, Apr 19 - Sat, Apr 25
Frontier Logo
8:36 pm - 2:15 pm
PHL
-
SAT
18h 39m
1 stop
Frontier Logo
4:04 pm - 5:35 am
SAT
-
PHL
12h 31m
1 stop
$236Frontier
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.

How much is a round-trip flight from Philadelphia to San Antonio?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Philadelphia to San Antonio departing in April.

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 $361 (return) on average. On the other hand, the most expensive months are November and March, where the average cost of round-trip tickets is $547 and $540 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 $315, 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 8 weeks before departure, which saves you about 30% 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$65
Best time to beat the crowds but there is an average 2% increase in price.
Most popular time to fly with an average 3% 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 $65 for a one-way ticket and $219 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 $446 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 $478 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 $109 or less one-way and $159 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 4343 reviews
8.1Boarding
7.0Food
8.6Crew
8.0Comfort
7.5Entertainment
Airline reviews

I elected to pay for the upgrades and found very little difference

6.0 GoodChris, Mar 2026
DAL - SAT
Read more Southwest reviews

I elected to pay for the upgrades and found very little difference

The new seating arrangement is so over priced for what you get.

Snacks are always pretzels. Why can't you also offer peanuts ?

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.

We departed and landed early which was a nice surprise. The boarding process was slow.

N Everything was perfect from boarding to assistance to baggage in Tampa

Subpar. The seating on the plane is almost unbearable. We are literally touching and/or sitting on each other which is totally unacceptable and shameful. Pilots and crew was very accommodating and friendly.

The boarding was organized and informative but the plane was tight meaning that you were sitting on one another and extremely uncomfortable. It’s disappointing that can’t have common seating comfort on the plane.

Loved the crew! Sucks that we went from 1 hour and 8 minute layover to a 3 hour layover. But weather sucks like that.

I was told that they needed to check my bag at the gate and to pick it up at the gate in Richmond. No big deal. I know they can't control the weather, but we flew around RIC for 45 minutes to avoid the storm and were 25 minutes late leaving as well. Once we landed, we were told to go to baggage claim to pick up our luggage. I went to bathroom, paid for parking, and went to the assigned baggage claim location. United flight people came down with us as well. They got their luggage immediately. Next, South West people came down about 10 minutes later. They got their luggage next. We finally got our luggage around 30 minutes in waiting. Was not a wonderful experience. No reflection on Delta, but the ground crew was lousy at best.

Everything could have benn better. Short fly, no food, no entertainment and no wifi.

Flight delayed. Air broken. Cabin was hot enough to pass out. Delta shuttle’s becoming worse and worse.

my mom urmila patel needed a wheelchair which was not available on the curbside. she needed to walk almost 50 meters inside (at the risk of falling) and then had to wait in line to get a wheelchair (this is not ok). Once obtained she had to seat in it for 30-45 minutes for someone to take her in thru the checkin process (which was fairly smooth and easy). the lady who helped her with her checkin process was very courteous and helpful

On the return flight, flight attendant Britt went out of her way to inform passengers that several of us had tight connections.

Fine. The issues I had were associated with luggage being delayed from Turkey to Tanzania

We purchase first class seats for the first time for multiples of standard economy ticket. There was no access to the club lounge and no priority boarding. The meal and the service once on the plane were superior and the seat was nicer, but not worth the price difference. I will be happy to seat in economy and spend the difference on more travel.

It isvvery small flight. No leg room . No space to put my personal item at feet.

My flight was canceled a few hours before boarding. I was rebooked on Copa airlines and missed an important meeting .

Everything was on time and service on the flight was great!

The travel company that you have on your site did me so wrong. I don’t know how it happened, but they put my son‘s name on my plane ticket flying to Vietnam. Along with his birthday. They would not have let me fly from Fort Myers to Ho Chi Minh City. I don’t think that I can ever use your service again. I typed my information into the browser along with my passport number and four days before I’m leaving I have to quickly search another ticket to fly out here.

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.

Plane was super cold. No entertainment unless you were with mileage program Getting off the plane was super slow

I appreciate that I finally got the seat I paid extra for this time. Thank you

Half of the TSA checkpoints at PHL are closed. Also, there is no standby for first class passengers. You can only standby for coach. Very dated policy and inconsistent with peers.

It would have been nice if American tried to care.

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.

It was an early flight and most people napped/slept and the crew let us which was nice.

The crew acted like they had never done this and kept barking passive aggressive orders at people. + the security line + the delay + sitting on the tarmac for 2 hours + none of the apps or signage updating with correct times

More inflight connection. And leg space is horrible. And the paying for baggage I'd ridiculous!!!

My flight was originally from SAT to MCO connecting from MCO to ORD. We got diverted to ATL and than Frontier staff there was sooo un helpful first they said they couldn’t give us any accommodation since our flight first got delayed that cancelled and now it’s 221am and I am still in ATL since they said they need to create a new flight my final destination is ORD and I have been delayed twice and cancelled. With no real help the frontier app didn’t work no email updates over all such a horrible experience

There's no seats that lean back with little leg space i wad uncomfortable the entire flight. Your charges for extra baggage is despicable and costly!!

Remind customers of the need to have passport or new ID for boarding.

Flight was canceled. Most upsetting was message from Kayak, stating that the flight was canceled and click with Kayak for details regarding rebook, refund details. THERE'S NO INFORMATION PROVIDED BY KAYAK EXCEPT THAT FLIGHT IS CANCELED. AND NOW THIS SURVEY TO FIND OUT HOW WAS THE FLIGHT !!!!!!!

The flight never took off and we spent 7 hours at the airport

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.

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

Information on your arrival and departure airports