Your next trip, last seen at €108
Lowest observedWhen to fly
Explore datesFind the dates that work for you
The lowest fare we observed for each month. Open a month to see its days, then pick your outbound and return. A day with no price is one we will search for you.
- Airlines seen
- American Airlines, Delta Air Lines, Frontier Airlines, Southwest Airlines, United Airlines
- Typical journey time
- 4h 38m
About this route
Explore the fares we observed from Philadelphia to San Antonio. Prices move often, so pick your dates to see the latest options.
- Route distance
- 2,423 km
- Typical journey time
- 4h 38m
- Airlines seen
- American Airlines, Delta Air Lines, Frontier Airlines, Southwest Airlines, United Airlines
- Seen on fares with a connection
- Delta Air Lines, United Airlines, Southwest Airlines
- Alternative airports
- TTN
Route-level information; individual journeys vary.
We have not observed non-stop service on this route; the fares shown include at least one stop.
A clearer picture of your fare
Airport to city: straight-line distance
- Philadelphia International Airport (PHL) → Philadelphia, city gazetteer reference point (39.9523, -75.1638): ≈ 11 km.
- Trenton Mercer Airport (TTN) → Philadelphia, city gazetteer reference point (39.9523, -75.1638): ≈ 47 km.
- San Antonio International Airport (SAT) → San Antonio, city gazetteer reference point (29.4241, -98.4936): ≈ 12 km.
Approximate distances calculated from coordinates, not road distances or travel times. These airports serve the city; they are not confirmed endpoints of an offer.
Frequently asked
How much is a flight from Philadelphia to San Antonio?
The lowest fare we have observed is €176, found on 6 Oct 2026. Prices move, so read it as a floor rather than a quote.
When is the cheapest month to fly from Philadelphia to San Antonio?
In our observations October 2026 is the cheapest month so far, at €176.
Are there direct flights from Philadelphia to San Antonio?
Our data holds no non-stop flight from Philadelphia to San Antonio. The fares on this page include at least one stop.
Which airlines fly from Philadelphia to San Antonio?
These are the carriers we have seen on the route: American Airlines, Delta Air Lines, Frontier Airlines, Southwest Airlines, United Airlines.
How observed prices work, what "No data" means and what a fare includes: Read the flight price guide
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Recently observed fares. Prices may change.
Last checked: 6 Oct 2026