Cheapest return flights from Austin to San Juan in December from 160€
AirHint found the following cheapest return flights from Austin (AUS) to San Juan (SJU)
in December 2025 (see full year ).
Return flights
31 Dec
- 15 Jan
Spirit Airlines
160 €
31 Dec
- 10 Jan
Spirit Airlines
163 €
31 Dec
- 13 Jan
Spirit Airlines
174 €
30 Dec
- 15 Jan
Spirit Airlines
180 €
30 Dec
- 10 Jan
Spirit Airlines
183 €
14 Dec
- 22 Dec
Frontier Airlines
186 €
30 Dec
- 13 Jan
Spirit Airlines
193 €
14 Dec
- 24 Dec
Frontier Airlines
196 €
28 Dec
- 15 Jan
Spirit Airlines
210 €
31 Dec
- 18 Jan
Spirit Airlines
211 €
28 Dec
- 10 Jan
Spirit Airlines
213 €
12 Dec
- 21 Dec
Frontier Airlines
217 €
07 Dec
- 14 Dec
Frontier Airlines
218 €
31 Dec
- 12 Jan
Spirit Airlines
219 €
12 Dec
- 25 Dec
Frontier Airlines
222 €
15 Dec
- 25 Dec
Frontier Airlines
223 €
14 Dec
- 21 Dec
Frontier Airlines
226 €
14 Dec
- 25 Dec
Frontier Airlines
228 €
11 Dec
- 14 Dec
Frontier Airlines
230 €
14 Dec
- 18 Dec
Frontier Airlines
232 €
Also check the deals for one-way flights from Austin to San Juan in December .
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