AirHint found the following cheapest return flights from Boston (BOS) to San Juan (SJU)
in December 2024 (see full year ).
Return flights
09 Dec
- 18 Dec
Frontier Airlines
83 €
direct
08 Dec
- 18 Dec
Frontier Airlines
83 €
direct
08 Dec
- 14 Dec
Frontier Airlines
91 €
direct
09 Dec
- 14 Dec
Frontier Airlines
91 €
direct
09 Dec
- 13 Dec
Frontier Airlines
91 €
direct
09 Dec
- 12 Dec
Frontier Airlines
91 €
direct
08 Dec
- 12 Dec
Frontier Airlines
91 €
direct
11 Dec
- 18 Dec
Frontier Airlines
92 €
10 Dec
- 18 Dec
Frontier Airlines
92 €
10 Dec
- 12 Dec
Frontier Airlines
100 €
10 Dec
- 14 Jan
Frontier Airlines
109 €
31 Dec
- 14 Jan
Frontier Airlines
134 €
31 Dec
- 11 Jan
Spirit Airlines
146 €
28 Dec
- 14 Jan
Spirit Airlines
148 €
31 Dec
- 17 Jan
Frontier Airlines
159 €
14 Dec
- 11 Jan
Spirit Airlines
167 €
14 Dec
- 12 Jan
Spirit Airlines
173 €
25 Dec
- 15 Jan
Frontier Airlines
182 €
25 Dec
- 14 Jan
Frontier Airlines
182 €
31 Dec
- 21 Jan
Spirit Airlines
183 €
Also check the deals for one-way flights from Boston to San Juan in December .
The deals are updated regularly. The prices may go up as tickets are purchased by other travellers.
Only the cheapest flights are offered.
Select a price to book and secure these cheap prices.