Cheap flights from Philadelphia to San Antonio

Philadelphia
PHL
San Antonio
SAT

Flight deals from Philadelphia to San Antonio

Below you can see the best deals on flights Philadelphia — San Antonio for upcoming dates. Direct and connecting flights from various airlines — compare prices and choose the right ticket.

The lowest price for the next 2 months is on 13 October, from $248.

Top 10 cheap flights from Philadelphia to San Antonio

About the Philadelphia — San Antonio flight

Looking for cheap flights from Philadelphia to San Antonio? Compare fares from different airlines, check the flight schedule and travel time — and book your Philadelphia — San Antonio ticket online at the best price.

The route has direct flights — around 22 flights per week, flights are operated by American Airlines, a nonstop flight takes about 4 h, the distance between the cities is around 2,425 km.

Planning your trip? You may find our San Antonio travel guide, how to get from the airport into town and San Antonio weather forecast useful. To catch a low fare, use the low-price calendar and the monthly price chart on this page.

Facts about this route

from $242Min. price
FebruaryCheapest
SeptemberPeak season
YesDirect flights
2,425 kmDistance
4 hTravel time
1Airlines
22 / wkFlights

Flight schedule from Philadelphia to San Antonio

The table shows direct flights from Philadelphia to San Antonio on the selected date. The flight takes approximately 4 h. Regular flights are operated by American Airlines. Departures from Philadelphia International Airport and Trenton-Mercer Airport airports, arrivals at San Antonio International Airport.

For each flight, the following details are shown: departure time (local), arrival city and airport, flight number and airline, terminal or gate, and status. Click on a flight to open its details and go to ticket search. To view flights on a different day, change the date above the table.

Today
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Last update: 08 Sep 2026

Flight ticket prices by day: Philadelphia — San Antonio

Below is a calendar of the lowest flight ticket prices for Philadelphia — San Antonio by day. Pick a convenient date and instantly see the fare. The cheapest flights on this route start from $242 in February, and the most expensive are around $276 in September. If your travel dates are flexible, the calendar will help you find the best price for your preferred period. To view round-trip fares, switch to the "Round trip" tab above the calendar, select your departure date — and the right-hand calendar will highlight the lowest prices for return flights on each day.

 
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Prices by month

Average one-way fares from Philadelphia to San Antonio by month. Tickets are usually cheapest in April (around $173) and priciest in March (about $245) — use the table and chart below to pick the best time to fly.

MonthAverage priceLevelMonthAverage priceLevelMonthAverage priceLevel
Jan$191lowMay$209mediumSep$200medium
Feb$182lowJun$218mediumOct$209medium
Mar$245highJul$209mediumNov$245high
Apr$173lowAug$191lowDec$236high

Some values are estimated based on seasonality.

When to fly

Weather in San Antonio: it is warmest in August (up to 36 °C on average) and coolest in January (around 18 °C). The driest month is July.

Tickets are usually cheapest in February and most expensive in September. Compare prices and weather by month in the charts below to pick the best time to fly.

Temperature · San Antonio

Dry and wet days · San Antonio

Wind speed and direction · San Antonio

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How to get the best deal on a Philadelphia — San Antonio ticket

  • Book ahead: fares for Philadelphia — San Antonio are usually lower 3–8 weeks before departure than at the last minute.
  • Play with your dates — Tuesday, Wednesday and Saturday departures are often cheaper than Friday and Sunday.
  • Philadelphia is served by more than one airport — compare fares and travel time to each before you book.
  • The cheapest month to fly to San Antonio is usually February — plan your trip around it if your dates are flexible.
  • Compare direct and connecting flights: nonstop is faster, while a connection is sometimes noticeably cheaper.
  • Watch the low-price calendar and the monthly price trend on this page — they make it easier to catch a good date.
  • Travelling light? Pick a cabin-baggage-only fare — tickets without checked luggage are noticeably cheaper.
  • Get to the airport in good time — about 2–3 hours before an international departure and roughly an hour before a domestic one.

Airlines

Flights on the Philadelphia — San Antonio route are operated by 1 airline; American Airlines runs the most flights (around 100% of all flights). Compare carriers, flight shares and schedules below.

  • American AirlinesAA
    7x/week
    WebsiteFleet: 965211M pax/year
    • Direct flight PHL → SAT7x/week
      Duration
      4h 2m
      Days
      MTWTFSS
    100.0%Open →

Cities and airports on the Philadelphia — San Antonio route

Flights Philadelphia — San Antonio depart from Philadelphia International Airport and Trenton-Mercer Airport and arrive at San Antonio International Airport. Below are pages for the cities, countries, and airports on the route: airlines, schedules, and travel guides.

Departure

Philadelphia

PHL
United States
About the cityHow to get thereWeatherAll about the country United States
Arrival

San Antonio

SAT
United States
About the cityHow to get thereWeatherAll about the country United States
Departure airports
Arrival airports

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Frequently asked questions about the Philadelphia — San Antonio flight

How long is the flight from Philadelphia to San Antonio?

A nonstop Philadelphia — San Antonio flight takes about 4 h — the distance between the cities is around 2,425 km.

How far is it from Philadelphia to San Antonio?

The distance from Philadelphia to San Antonio is about 2,425 km, which a nonstop flight covers in around 4 h.

Are there direct flights from Philadelphia to San Antonio?

Yes, there are nonstop flights Philadelphia — San Antonio — around 22 flights per week.

Which airlines fly from Philadelphia to San Antonio?

Airlines operating Philadelphia — San Antonio include American Airlines. See the full list with schedules in the "Airlines" section on this page.

Which airports do Philadelphia — San Antonio flights use?

Flights from Philadelphia depart from Philadelphia International Airport, Trenton-Mercer Airport, and arrive at San Antonio International Airport. If a city has more than one airport, check which one your ticket uses before you travel.

How much is a ticket from Philadelphia to San Antonio?

The price of a Philadelphia — San Antonio ticket depends on your travel date, season and demand: it is usually cheapest to fly in February, and most expensive in September. Tickets typically cost between $242 and $276. Check the current lowest fare and low-price calendar on this page.

When is the best time to book flights Philadelphia — San Antonio?

Flights Philadelphia — San Antonio are usually cheaper when booked in advance — a few weeks before departure and away from peak dates; the most budget-friendly month to fly is February. Compare prices by month in the price trend chart on this page.

How can I find the cheapest flights from Philadelphia to San Antonio?

To catch a low fare Philadelphia — San Antonio, book a few weeks in advance, keep your dates flexible, and compare airlines and connecting options. The low-price calendar and monthly price chart on this page show the cheapest days and months at a glance: the most budget-friendly month to fly is usually February.

How early should I arrive at the airport?

For international flights, plan to be at the airport about 2–3 hours before departure, and around an hour before a domestic flight. Allow extra time during busy travel seasons and at large hubs, where check-in and security lines can be longer.

Where else you can fly from Philadelphia

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AtlantaChicagoBostonOrlandoFort LauderdaleMiamiTorontoDetroitCharlotteWashington, D.C.RaleighDallasLos AngelesPhoenixDenverMinneapolisSan JuanPittsburghSeattleNashvilleMontrealColumbusClevelandTampaSan FranciscoIndianapolisNorfolkCincinnatiHoustonLas VegasHarrisburgJacksonvilleRichmondHartfordSouth PortlandAlbanyRochesterKansas CityCancunPunta Cana

Where else you can fly from San Antonio

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DallasLos AngelesHoustonChicagoAtlantaLas VegasDenverPhoenixMinneapolisMexico CitySalt Lake CityCharlotteDetroitSeattleMonterreyNew York CityOrlandoGuadalajaraMiamiWashington, D.C.Fort LauderdaleCancunSan JuanBostonTorontoQuerétaroSan FranciscoLeonTampaSan Luis PotosíBrownsvilleManhattanLafayette

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