$119 Cheap Frontier Airlines flights Boston (BOS) to San Juan (SJU)

$119 Cheap Frontier Airlines flights Boston (BOS) to San Juan (SJU)

Prices were available within the past 7 days and start at $119 for one-way flights and $273 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Sat, Jul 12 - Wed, Jul 30

BOS

Boston

SJU

San Juan

$273 Roundtrip, found 1 day ago

$273

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Sat, Jul 12 from Boston to San Juan, returning Wed, Jul 30, priced at $273 found 1 day ago

Sat, Jul 5 - Tue, Jul 8

BOS

Boston

SJU

San Juan

$280 Roundtrip, found 19 hours ago

$280

Roundtrip

found 19 hours ago

Select Frontier Airlines flight, departing Sat, Jul 5 from Boston to San Juan, returning Tue, Jul 8, priced at $280 found 19 hours ago

Mon, Jul 14 - Wed, Jul 30

BOS

Boston

SJU

San Juan

$281 Roundtrip, found 1 day ago

$281

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Mon, Jul 14 from Boston to San Juan, returning Wed, Jul 30, priced at $281 found 1 day ago

Sat, Aug 30 - Sat, Sep 6

BOS

Boston

SJU

San Juan

$288 Roundtrip, found 18 hours ago

$288

Roundtrip

found 18 hours ago

Select Frontier Airlines flight, departing Sat, Aug 30 from Boston to San Juan, returning Sat, Sep 6, priced at $288 found 18 hours ago

Sun, Jul 13 - Wed, Jul 30

BOS

Boston

SJU

San Juan

$291 Roundtrip, found 1 day ago

$291

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Sun, Jul 13 from Boston to San Juan, returning Wed, Jul 30, priced at $291 found 1 day ago

Fri, Jul 4 - Tue, Jul 8

BOS

Boston

SJU

San Juan

$298 Roundtrip, found 19 hours ago

$298

Roundtrip

found 19 hours ago

Select Frontier Airlines flight, departing Fri, Jul 4 from Boston to San Juan, returning Tue, Jul 8, priced at $298 found 19 hours ago