Cheap Flights from Austin to San Juan

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The latest fare from Austin to San Juan: $224 round trip, Dec 7 – Dec 13, seen Nov 9. Prices by month are below.

Across 4 months of observations from Austin to San Juan, the lowest round-trip economy fare we recorded was $147, in August. The typical economy fare was $407. August was the cheapest month we saw and September the dearest.

The most recent economy price we saw on this route was $224 on Frontier, seen Nov 9.

See every deal from Austin, to San Juan, or the return direction San Juan to Austin.

Latest economy price we saw: Austin to San Juan

The most recent economy round-trip fare we saw on this route.

From	Price	Per mile	Travel dates	Airline	Seen
Austin (AUS) to San Juan (SJU)	$224	5.2¢	Dec 7 – Dec 13	Frontier	Nov 9

Economy price history: Austin to San Juan

The lowest fares we saw each month.

Month	Low	Typical	Sightings
Nov 2026	$224	$224	6
Oct 2026	$171	$235	94
Sep 2026	$977	$977	26
Aug 2026	$147	$193	76

Frequently asked questions

How many flight deals from Austin to San Juan are on Sparkflights right now?

There are 0 deals from Austin to San Juan on the board right now.

What is the lowest price ever seen from Austin to San Juan?

The lowest economy fare we've recorded from Austin to San Juan is $147, based on 202 price observations over 4 months.

How much does a flight from Austin to San Juan cost?

The typical round-trip economy fare we observed from Austin to San Juan is $407, against a recorded low of $147. These are observations, not quotes.

When is the cheapest month to fly Austin to San Juan?

For economy fares from Austin to San Juan, August was the cheapest month we observed and September the dearest, over 4 months of data.

What is the current price from Austin to San Juan?

The most recent economy fare we saw from Austin to San Juan is $224, on Nov 9.