Boston skyline and harbor
BOS
Boston
Old San Juan Puerto Rico colorful buildings
SJU
San Juan

Boston → San Juan

Frontier Airlines · Round Trip · Nonstop

Save $127 (43% off)
Compared to the typical price of $293
$181$293

per person · round trip

Book This Deal

Flight Details

Cabin
Economy
Departs
Apr 9, 2026
Returns
Apr 12, 2026

Price History

Avg: $174
Low: $166
High: $181
$160$170$180$190Mar 29Apr 1Apr 3

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