San Diego to San Antonio flights

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Fare seen

€117Seen on 11 Sep 2026

Last checked

9 Oct 2026

Observed fares. Prices may change.

Your next trip, last seen at €101

Lowest observed

1 Dec 2026

Frontier Airlines · 1 stop · One way

Cheapest observed day · Last checked: 11 Sep 2026

Departure

18:22

When to fly

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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.

Prices are for observed departure and return date pairs. No data does not mean no flights.

Airlines seen: Frontier Airlines, United Airlines
Typical journey time: 13h 41m
Non-stop: Yes

Short answer

We have seen Frontier Airlines fares from San Diego to San Antonio. These are prices our searches returned on the dates shown, not quotes; run a live search for today's fare. Fare seen: €117 on 11 Sep 2026.

About this route

Explore the fares we observed from San Diego to San Antonio. Prices move often, so pick your dates to see the latest options.

Route distance: 1,812 km
Typical journey time: 13h 41m
Airlines seen: Frontier Airlines, United Airlines
Alternative airports: CLD

Route-level information; individual journeys vary.
Published schedules report non-stop service with Southwest Airlines. Check current timetables.

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Observed, not guaranteed

Every price is a fare we actually saw, and it may change at any time.

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How our prices work

Airport to city: straight-line distance

San Diego International Airport (SAN) → San Diego, city gazetteer reference point (32.7153, -117.1573): ≈ 4 km.
McClellan-Palomar Airport (CLD) → San Diego, city gazetteer reference point (32.7153, -117.1573): ≈ 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 was a flight from San Diego to San Antonio?

A fare of €117 was seen on 11 Sep 2026. Fares change, so search your dates for the current price.

Are there direct flights from San Diego to San Antonio?

Yes. We have seen non-stop flights on this route, flown by Southwest Airlines.

Which airlines fly from San Diego to San Antonio?

These are the carriers we have seen on the route: Frontier Airlines, United Airlines.

How long does the flight from San Diego to San Antonio take?

The average journey time across the 72 fares we observed is 16h 22m, including any stops. Individual departures vary; the fastest observed flight is listed in the route facts above.

How observed prices work, what "No data" means and what a fare includes: Read the flight price guide