$152 Cheap Frontier Airlines flights San Juan (SJU) to Boston (BOS)

$152 Cheap Frontier Airlines flights San Juan (SJU) to Boston (BOS)

Prices were available within the past 7 days and start at $152 for one-way flights and $308 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Sat, Oct 18 - Thu, Oct 23

SJU

San Juan

BOS

Boston

$308 Roundtrip, found 2 days ago

$308

Roundtrip

found 2 days ago

Select Frontier Airlines flight, departing Sat, Oct 18 from San Juan to Boston, returning Thu, Oct 23, priced at $308 found 2 days ago

Sat, Oct 18 - Mon, Oct 20

SJU

San Juan

BOS

Boston

$323 Roundtrip, found 2 days ago

$323

Roundtrip

found 2 days ago

Select Frontier Airlines flight, departing Sat, Oct 18 from San Juan to Boston, returning Mon, Oct 20, priced at $323 found 2 days ago

Sat, Nov 22 - Mon, Dec 1

SJU

San Juan

BOS

Boston

$356 Roundtrip, found 16 hours ago

$356

Roundtrip

found 16 hours ago

Select Frontier Airlines flight, departing Sat, Nov 22 from San Juan to Boston, returning Mon, Dec 1, priced at $356 found 16 hours ago

Sat, Nov 22 - Tue, Dec 2

SJU

San Juan

BOS

Boston

$386 Roundtrip, found 16 hours ago

$386

Roundtrip

found 16 hours ago

Select Frontier Airlines flight, departing Sat, Nov 22 from San Juan to Boston, returning Tue, Dec 2, priced at $386 found 16 hours ago

Sun, Nov 23 - Mon, Dec 1

SJU

San Juan

BOS

Boston

$396 Roundtrip, found 16 hours ago

$396

Roundtrip

found 16 hours ago

Select Frontier Airlines flight, departing Sun, Nov 23 from San Juan to Boston, returning Mon, Dec 1, priced at $396 found 16 hours ago

Sat, Nov 22 - Thu, Nov 27

SJU

San Juan

BOS

Boston

$416 Roundtrip, found 16 hours ago

$416

Roundtrip

found 16 hours ago

Select Frontier Airlines flight, departing Sat, Nov 22 from San Juan to Boston, returning Thu, Nov 27, priced at $416 found 16 hours ago

Sun, Oct 19 - Thu, Oct 23

SJU

San Juan

BOS

Boston

$479 Roundtrip, found 2 days ago

$479

Roundtrip

found 2 days ago

Select Frontier Airlines flight, departing Sun, Oct 19 from San Juan to Boston, returning Thu, Oct 23, priced at $479 found 2 days ago