Flights from Chicago to Isabela

Cheapest flights from Chicago

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, Jul 15 - Tue, Jul 15

ORD

O'Hare Intl.

SJU

Luis Munoz Marin Intl.

$267 Roundtrip, found 4 days ago

$267

Roundtrip

found 4 days ago

Select Spirit Airlines flight, departing Tue, Jul 15 from O'Hare Intl. to Luis Munoz Marin Intl., returning Tue, Jul 15, priced at $267 found 4 days ago

Sun, Jul 13 - Tue, Jul 15

ORD

O'Hare Intl.

SJU

Luis Munoz Marin Intl.

$272 Roundtrip, found 4 days ago

$272

Roundtrip

found 4 days ago

Select Spirit Airlines flight, departing Sun, Jul 13 from O'Hare Intl. to Luis Munoz Marin Intl., returning Tue, Jul 15, priced at $272 found 4 days ago

Tue, Oct 7 - Sat, Oct 18

ORD

O'Hare Intl.

SJU

Luis Munoz Marin Intl.

$289 Roundtrip, found 5 days ago

$289

Roundtrip

found 5 days ago

Select Spirit Airlines flight, departing Tue, Oct 7 from O'Hare Intl. to Luis Munoz Marin Intl., returning Sat, Oct 18, priced at $289 found 5 days ago

Mon, Jul 14 - Tue, Jul 15

ORD

O'Hare Intl.

SJU

Luis Munoz Marin Intl.

$305 Roundtrip, found 4 days ago

$305

Roundtrip

found 4 days ago

Select Spirit Airlines flight, departing Mon, Jul 14 from O'Hare Intl. to Luis Munoz Marin Intl., returning Tue, Jul 15, priced at $305 found 4 days ago

Sat, Oct 11 - Sat, Oct 18

ORD

O'Hare Intl.

SJU

Luis Munoz Marin Intl.

$307 Roundtrip, found 5 days ago

$307

Roundtrip

found 5 days ago

Select Spirit Airlines flight, departing Sat, Oct 11 from O'Hare Intl. to Luis Munoz Marin Intl., returning Sat, Oct 18, priced at $307 found 5 days ago

Tue, Oct 7 - Thu, Oct 16

ORD

O'Hare Intl.

SJU

Luis Munoz Marin Intl.

$309 Roundtrip, found 5 days ago

$309

Roundtrip

found 5 days ago

Select Spirit Airlines flight, departing Tue, Oct 7 from O'Hare Intl. to Luis Munoz Marin Intl., returning Thu, Oct 16, priced at $309 found 5 days ago

Tue, Oct 7 - Wed, Oct 15

ORD

O'Hare Intl.

SJU

Luis Munoz Marin Intl.

$322 Roundtrip, found 5 days ago

$322

Roundtrip

found 5 days ago

Select Spirit Airlines flight, departing Tue, Oct 7 from O'Hare Intl. to Luis Munoz Marin Intl., returning Wed, Oct 15, priced at $322 found 5 days ago

Tue, Aug 5 - Wed, Aug 20

ORD

O'Hare Intl.

SJU

Luis Munoz Marin Intl.

$325 Roundtrip, found 5 days ago

$325

Roundtrip

found 5 days ago

Select Spirit Airlines flight, departing Tue, Aug 5 from O'Hare Intl. to Luis Munoz Marin Intl., returning Wed, Aug 20, priced at $325 found 5 days ago

Sun, Jul 13 - Thu, Jul 17

ORD

O'Hare Intl.

SJU

Luis Munoz Marin Intl.

$327 Roundtrip, found 4 days ago

$327

Roundtrip

found 4 days ago

Select Spirit Airlines flight, departing Sun, Jul 13 from O'Hare Intl. to Luis Munoz Marin Intl., returning Thu, Jul 17, priced at $327 found 4 days ago

Wed, Oct 8 - Tue, Oct 14

ORD

O'Hare Intl.

SJU

Luis Munoz Marin Intl.

$340 Roundtrip, found 5 days ago

$340

Roundtrip

found 5 days ago

Select JetBlue Airways flight, departing Wed, Oct 8 from O'Hare Intl. to Luis Munoz Marin Intl., returning Tue, Oct 14, priced at $340 found 5 days ago

Tue, Jul 15 - Wed, Jul 16

ORD

O'Hare Intl.

SJU

Luis Munoz Marin Intl.

$342 Roundtrip, found 4 days ago

$342

Roundtrip

found 4 days ago

Select JetBlue Airways flight, departing Tue, Jul 15 from O'Hare Intl. to Luis Munoz Marin Intl., returning Wed, Jul 16, priced at $342 found 4 days ago

Sun, Jul 13 - Wed, Jul 16

ORD

O'Hare Intl.

SJU

Luis Munoz Marin Intl.

$347 Roundtrip, found 4 days ago

$347

Roundtrip

found 4 days ago

Select Spirit Airlines flight, departing Sun, Jul 13 from O'Hare Intl. to Luis Munoz Marin Intl., returning Wed, Jul 16, priced at $347 found 4 days ago

Fri, Jul 11 - Tue, Jul 15

ORD

O'Hare Intl.

SJU

Luis Munoz Marin Intl.

$347 Roundtrip, found 4 days ago

$347

Roundtrip

found 4 days ago

Select Spirit Airlines flight, departing Fri, Jul 11 from O'Hare Intl. to Luis Munoz Marin Intl., returning Tue, Jul 15, priced at $347 found 4 days ago

Thu, Jul 17 - Thu, Jul 17

ORD

O'Hare Intl.

SJU

Luis Munoz Marin Intl.

$354 Roundtrip, found 4 days ago

$354

Roundtrip

found 4 days ago

Select Spirit Airlines flight, departing Thu, Jul 17 from O'Hare Intl. to Luis Munoz Marin Intl., returning Thu, Jul 17, priced at $354 found 4 days ago

Thu, Jul 17 - Mon, Jul 21

ORD

O'Hare Intl.

SJU

Luis Munoz Marin Intl.

$360 Roundtrip, found 4 days ago

$360

Roundtrip

found 4 days ago

Select Spirit Airlines flight, departing Thu, Jul 17 from O'Hare Intl. to Luis Munoz Marin Intl., returning Mon, Jul 21, priced at $360 found 4 days ago

Sun, Jul 13 - Sat, Jul 19

ORD

O'Hare Intl.

SJU

Luis Munoz Marin Intl.

$367 Roundtrip, found 4 days ago

$367

Roundtrip

found 4 days ago

Select Spirit Airlines flight, departing Sun, Jul 13 from O'Hare Intl. to Luis Munoz Marin Intl., returning Sat, Jul 19, priced at $367 found 4 days ago

Thu, Mar 12 - Wed, Mar 18

ORD

O'Hare Intl.

SJU

Luis Munoz Marin Intl.

$372 Roundtrip, found 5 days ago

$372

Roundtrip

found 5 days ago

Select American Airlines flight, departing Thu, Mar 12 from O'Hare Intl. to Luis Munoz Marin Intl., returning Wed, Mar 18, priced at $372 found 5 days ago

Sat, Feb 7 - Sun, Feb 15

ORD

O'Hare Intl.

SJU

Luis Munoz Marin Intl.

$377 Roundtrip, found 2 days ago

$377

Roundtrip

found 2 days ago

Select United flight, departing Sat, Feb 7 from O'Hare Intl. to Luis Munoz Marin Intl., returning Sun, Feb 15, priced at $377 found 2 days ago

Mon, Jul 14 - Wed, Jul 16

ORD

O'Hare Intl.

SJU

Luis Munoz Marin Intl.

$379 Roundtrip, found 4 days ago

$379

Roundtrip

found 4 days ago

Select Spirit Airlines flight, departing Mon, Jul 14 from O'Hare Intl. to Luis Munoz Marin Intl., returning Wed, Jul 16, priced at $379 found 4 days ago

Sun, Oct 12 - Tue, Oct 14

ORD

O'Hare Intl.

SJU

Luis Munoz Marin Intl.

$381 Roundtrip, found 5 days ago

$381

Roundtrip

found 5 days ago

Select Delta flight, departing Sun, Oct 12 from O'Hare Intl. to Luis Munoz Marin Intl., returning Tue, Oct 14, priced at $381 found 5 days ago