San Antonio to San Juan flights

Find your dates. Discover your next journey.

Lowest observed

€996

Cheapest month

December 2026

Last checked

10 Oct 2026

Observed fares. Prices may change.

Your next trip, last seen at €996

23 Dec 2026

Frontier Airlines · 2 stops · 10 nights

Cheapest observed day · Last checked: 10 Oct 2026

Departure

21:21

When to fly

Explore dates

More dates worth a look

Find 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.

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

Lowest observed: €996, departing 23 Dec 2026 (Last checked: 10 Oct 2026)One-way fareCheck live prices for this route
Airlines seen: Breeze Airways, Frontier Airlines, United Airlines, Viva Aerobus
Typical journey time: 24h 50m

Short answer

We have seen Breeze Airways fares from San Antonio to San Juan. The lowest fare our own searches returned is €996, seen on 10 Oct 2026. December 2026 is the cheapest month in our observations, at €996. These are prices our searches returned on the dates shown, not quotes; run a live search for today's fare.

About this route

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

Route distance: 3,495 km
Typical journey time: 24h 50m
Airlines seen: Breeze Airways, Frontier Airlines, United Airlines, Viva Aerobus
Seen on fares with a connection: Frontier Airlines, Breeze Airways, United Airlines, Viva Aerobus
Alternative airports: SIG

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

Observed, not guaranteed

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

Compare the same trip

We show like-for-like journeys so the comparison is fair.

Confirm with the provider

The price is final on the provider's site, where your booking is completed.

How our prices work

Airport to city: straight-line distance

San Antonio International Airport (SAT) → San Antonio, city gazetteer reference point (29.4241, -98.4936): ≈ 12 km.
Fernando Luis Ribas Dominicci Airport (SIG) → San Juan, city gazetteer reference point (18.4663, -66.1057): ≈ 1 km.
Luis Munoz Marin International Airport (SJU) → San Juan, city gazetteer reference point (18.4663, -66.1057): ≈ 11 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 San Antonio to San Juan?

The lowest fare we have observed is €996, found on 10 Oct 2026. Prices move, so read it as a floor rather than a quote.

When is the cheapest month to fly from San Antonio to San Juan?

In our observations December 2026 is the cheapest month so far, at €996.

Are there direct flights from San Antonio to San Juan?

Our data holds no non-stop flight from San Antonio to San Juan. The fares on this page include at least one stop.

Which airlines fly from San Antonio to San Juan?

These are the carriers we have seen on the route: Breeze Airways, Frontier Airlines, United Airlines, Viva Aerobus.

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

The average journey time across the 72 fares we observed is 25h 26m, including any stops. Individual departures vary; the fastest observed flight is listed in the route facts above.

How many of the observed San Antonio to San Juan fares were non-stop?

None of the 73 fares we observed was non-stop; every one included at least one stop. That describes our observations, not every flight that operates.

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