$137 Cheap Frontier Airlines flights Boston (BOS) to San Juan (SJU)

$137 Cheap Frontier Airlines flights Boston (BOS) to San Juan (SJU)

Prices were available within the past 7 days and start at $137 for one-way flights and $243 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Mon, Aug 18 - Fri, Aug 22

BOS

Boston

SJU

San Juan

$243 Roundtrip, found 1 day ago

$243

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Mon, Aug 18 from Boston to San Juan, returning Fri, Aug 22, priced at $243 found 1 day ago

Thu, Oct 16 - Sun, Oct 26

BOS

Boston

SJU

San Juan

$274 Roundtrip, found 14 hours ago

$274

Roundtrip

found 14 hours ago

Select Frontier Airlines flight, departing Thu, Oct 16 from Boston to San Juan, returning Sun, Oct 26, priced at $274 found 14 hours ago

Thu, Oct 16 - Sat, Oct 25

BOS

Boston

SJU

San Juan

$283 Roundtrip, found 14 hours ago

$283

Roundtrip

found 14 hours ago

Select Frontier Airlines flight, departing Thu, Oct 16 from Boston to San Juan, returning Sat, Oct 25, priced at $283 found 14 hours ago