Flights from Boston to Isabela

Cheapest flights from Boston

These prices were available within the past 7 days. Prices quoted are per person, round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Tue, May 6 - Sat, May 24

BOS

Logan Intl.

SJU

Luis Munoz Marin Intl.

$200 Roundtrip, found 1 day ago

$200

Roundtrip

found 1 day ago

Select Spirit Airlines flight, departing Tue, May 6 from Logan Intl. to Luis Munoz Marin Intl., returning Sat, May 24, priced at $200 found 1 day ago

Sun, Jun 15 - Thu, Jun 19

BOS

Logan Intl.

SJU

Luis Munoz Marin Intl.

$210 Roundtrip, just found

$210

Roundtrip

just found

Select Spirit Airlines flight, departing Sun, Jun 15 from Logan Intl. to Luis Munoz Marin Intl., returning Thu, Jun 19, priced at $210 just found

Sun, May 4 - Sat, May 24

BOS

Logan Intl.

SJU

Luis Munoz Marin Intl.

$220 Roundtrip, found 1 day ago

$220

Roundtrip

found 1 day ago

Select Spirit Airlines flight, departing Sun, May 4 from Logan Intl. to Luis Munoz Marin Intl., returning Sat, May 24, priced at $220 found 1 day ago

Tue, Jun 3 - Sat, Jun 7

BOS

Logan Intl.

SJU

Luis Munoz Marin Intl.

$228 Roundtrip, found 4 days ago

$228

Roundtrip

found 4 days ago

Select Spirit Airlines flight, departing Tue, Jun 3 from Logan Intl. to Luis Munoz Marin Intl., returning Sat, Jun 7, priced at $228 found 4 days ago

Sun, Jun 15 - Sun, Jun 22

BOS

Logan Intl.

SJU

Luis Munoz Marin Intl.

$230 Roundtrip, just found

$230

Roundtrip

just found

Select Spirit Airlines flight, departing Sun, Jun 15 from Logan Intl. to Luis Munoz Marin Intl., returning Sun, Jun 22, priced at $230 just found

Tue, Jun 3 - Fri, Jun 6

BOS

Logan Intl.

SJU

Luis Munoz Marin Intl.

$235 Roundtrip, found 4 days ago

$235

Roundtrip

found 4 days ago

Select Spirit Airlines flight, departing Tue, Jun 3 from Logan Intl. to Luis Munoz Marin Intl., returning Fri, Jun 6, priced at $235 found 4 days ago

Tue, Jun 17 - Thu, Jun 19

BOS

Logan Intl.

SJU

Luis Munoz Marin Intl.

$239 Roundtrip, just found

$239

Roundtrip

just found

Select Spirit Airlines flight, departing Tue, Jun 17 from Logan Intl. to Luis Munoz Marin Intl., returning Thu, Jun 19, priced at $239 just found

Tue, May 6 - Sun, May 18

BOS

Logan Intl.

SJU

Luis Munoz Marin Intl.

$243 Roundtrip, found 1 day ago

$243

Roundtrip

found 1 day ago

Select Spirit Airlines flight, departing Tue, May 6 from Logan Intl. to Luis Munoz Marin Intl., returning Sun, May 18, priced at $243 found 1 day ago

Mon, Jun 16 - Sun, Jun 22

BOS

Logan Intl.

SJU

Luis Munoz Marin Intl.

$251 Roundtrip, just found

$251

Roundtrip

just found

Select Spirit Airlines flight, departing Mon, Jun 16 from Logan Intl. to Luis Munoz Marin Intl., returning Sun, Jun 22, priced at $251 just found

Thu, Jun 5 - Sat, Jun 7

BOS

Logan Intl.

SJU

Luis Munoz Marin Intl.

$258 Roundtrip, found 4 days ago

$258

Roundtrip

found 4 days ago

Select Spirit Airlines flight, departing Thu, Jun 5 from Logan Intl. to Luis Munoz Marin Intl., returning Sat, Jun 7, priced at $258 found 4 days ago

Sun, May 4 - Sun, May 18

BOS

Logan Intl.

SJU

Luis Munoz Marin Intl.

$263 Roundtrip, found 1 day ago

$263

Roundtrip

found 1 day ago

Select Spirit Airlines flight, departing Sun, May 4 from Logan Intl. to Luis Munoz Marin Intl., returning Sun, May 18, priced at $263 found 1 day ago

Wed, Jun 4 - Sat, Jun 7

BOS

Logan Intl.

SJU

Luis Munoz Marin Intl.

$264 Roundtrip, found 4 days ago

$264

Roundtrip

found 4 days ago

Select Spirit Airlines flight, departing Wed, Jun 4 from Logan Intl. to Luis Munoz Marin Intl., returning Sat, Jun 7, priced at $264 found 4 days ago

Thu, Jun 5 - Fri, Jun 6

BOS

Logan Intl.

SJU

Luis Munoz Marin Intl.

$265 Roundtrip, found 4 days ago

$265

Roundtrip

found 4 days ago

Select Spirit Airlines flight, departing Thu, Jun 5 from Logan Intl. to Luis Munoz Marin Intl., returning Fri, Jun 6, priced at $265 found 4 days ago

Sat, Jun 21 - Sun, Jun 22

BOS

Logan Intl.

SJU

Luis Munoz Marin Intl.

$267 Roundtrip, just found

$267

Roundtrip

just found

Select Spirit Airlines flight, departing Sat, Jun 21 from Logan Intl. to Luis Munoz Marin Intl., returning Sun, Jun 22, priced at $267 just found

Thu, May 8 - Sat, May 24

BOS

Logan Intl.

SJU

Luis Munoz Marin Intl.

$269 Roundtrip, found 1 day ago

$269

Roundtrip

found 1 day ago

Select Spirit Airlines flight, departing Thu, May 8 from Logan Intl. to Luis Munoz Marin Intl., returning Sat, May 24, priced at $269 found 1 day ago

Tue, Jul 8 - Thu, Jul 17

BOS

Logan Intl.

SJU

Luis Munoz Marin Intl.

$304 Roundtrip, found 2 days ago

$304

Roundtrip

found 2 days ago

Select Delta flight, departing Tue, Jul 8 from Logan Intl. to Luis Munoz Marin Intl., returning Thu, Jul 17, priced at $304 found 2 days ago

Tue, Jul 8 - Tue, Jul 22

BOS

Logan Intl.

SJU

Luis Munoz Marin Intl.

$304 Roundtrip, found 2 days ago

$304

Roundtrip

found 2 days ago

Select JetBlue Airways flight, departing Tue, Jul 8 from Logan Intl. to Luis Munoz Marin Intl., returning Tue, Jul 22, priced at $304 found 2 days ago

Thu, May 8 - Sun, May 18

BOS

Logan Intl.

SJU

Luis Munoz Marin Intl.

$308 Roundtrip, found 1 day ago

$308

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Thu, May 8 from Logan Intl. to Luis Munoz Marin Intl., returning Sun, May 18, priced at $308 found 1 day ago

Wed, May 7 - Wed, May 21

BOS

Logan Intl.

SJU

Luis Munoz Marin Intl.

$348 Roundtrip, found 1 day ago

$348

Roundtrip

found 1 day ago

Select United flight, departing Wed, May 7 from Logan Intl. to Luis Munoz Marin Intl., returning Wed, May 21, priced at $348 found 1 day ago

Wed, Dec 10 - Sun, Dec 14

BOS

Logan Intl.

SJU

Luis Munoz Marin Intl.

$358 Roundtrip, found 3 days ago

$358

Roundtrip

found 3 days ago

Select American Airlines flight, departing Wed, Dec 10 from Logan Intl. to Luis Munoz Marin Intl., returning Sun, Dec 14, priced at $358 found 3 days ago