Flights from St. Louis to Mayagüez Arriba

Cheapest flights from St. Louis

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.

Wed, Sep 3 - Thu, Sep 4

STL

Lambert-St. Louis Intl.

SJU

Luis Munoz Marin Intl.

$219 Roundtrip, just found

$219

Roundtrip

just found

Select Delta flight, departing Wed, Sep 3 from Lambert-St. Louis Intl. to Luis Munoz Marin Intl., returning Thu, Sep 4, priced at $219 just found

Mon, Sep 1 - Tue, Sep 9

STL

Lambert-St. Louis Intl.

SJU

Luis Munoz Marin Intl.

$259 Roundtrip, just found

$259

Roundtrip

just found

Select American Airlines flight, departing Mon, Sep 1 from Lambert-St. Louis Intl. to Luis Munoz Marin Intl., returning Tue, Sep 9, priced at $259 just found

Mon, Sep 1 - Mon, Sep 8

STL

Lambert-St. Louis Intl.

SJU

Luis Munoz Marin Intl.

$274 Roundtrip, just found

$274

Roundtrip

just found

Select Delta flight, departing Mon, Sep 1 from Lambert-St. Louis Intl. to Luis Munoz Marin Intl., returning Mon, Sep 8, priced at $274 just found

Mon, Sep 1 - Mon, Sep 8

STL

Lambert-St. Louis Intl.

SJU

Luis Munoz Marin Intl.

$294 Roundtrip, just found

$294

Roundtrip

just found

Select American Airlines flight, departing Mon, Sep 1 from Lambert-St. Louis Intl. to Luis Munoz Marin Intl., returning Mon, Sep 8, priced at $294 just found

Wed, Sep 3 - Sat, Sep 6

STL

Lambert-St. Louis Intl.

SJU

Luis Munoz Marin Intl.

$295 Roundtrip, just found

$295

Roundtrip

just found

Select Delta flight, departing Wed, Sep 3 from Lambert-St. Louis Intl. to Luis Munoz Marin Intl., returning Sat, Sep 6, priced at $295 just found

Fri, Sep 5 - Sat, Sep 6

STL

Lambert-St. Louis Intl.

SJU

Luis Munoz Marin Intl.

$317 Roundtrip, just found

$317

Roundtrip

just found

Select Frontier Airlines flight, departing Fri, Sep 5 from Lambert-St. Louis Intl. to Luis Munoz Marin Intl., returning Sat, Sep 6, priced at $317 just found

Fri, Sep 5 - Sun, Sep 7

STL

Lambert-St. Louis Intl.

SJU

Luis Munoz Marin Intl.

$318 Roundtrip, just found

$318

Roundtrip

just found

Select Frontier Airlines flight, departing Fri, Sep 5 from Lambert-St. Louis Intl. to Luis Munoz Marin Intl., returning Sun, Sep 7, priced at $318 just found

Sun, Sep 7 - Mon, Sep 8

STL

Lambert-St. Louis Intl.

SJU

Luis Munoz Marin Intl.

$323 Roundtrip, just found

$323

Roundtrip

just found

Select Frontier Airlines flight, departing Sun, Sep 7 from Lambert-St. Louis Intl. to Luis Munoz Marin Intl., returning Mon, Sep 8, priced at $323 just found

Sun, Aug 3 - Sun, Aug 10

STL

Lambert-St. Louis Intl.

SJU

Luis Munoz Marin Intl.

$325 Roundtrip, found 1 day ago

$325

Roundtrip

found 1 day ago

Select Spirit Airlines flight, departing Sun, Aug 3 from Lambert-St. Louis Intl. to Luis Munoz Marin Intl., returning Sun, Aug 10, priced at $325 found 1 day ago

Sun, Aug 31 - Mon, Sep 8

STL

Lambert-St. Louis Intl.

SJU

Luis Munoz Marin Intl.

$328 Roundtrip, found 1 day ago

$328

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Sun, Aug 31 from Lambert-St. Louis Intl. to Luis Munoz Marin Intl., returning Mon, Sep 8, priced at $328 found 1 day ago

Sun, Aug 31 - Sun, Sep 7

STL

Lambert-St. Louis Intl.

SJU

Luis Munoz Marin Intl.

$338 Roundtrip, found 1 day ago

$338

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Sun, Aug 31 from Lambert-St. Louis Intl. to Luis Munoz Marin Intl., returning Sun, Sep 7, priced at $338 found 1 day ago

Mon, Sep 1 - Mon, Sep 8

STL

Lambert-St. Louis Intl.

SJU

Luis Munoz Marin Intl.

$339 Roundtrip, just found

$339

Roundtrip

just found

Select American Airlines flight, departing Mon, Sep 1 from Lambert-St. Louis Intl. to Luis Munoz Marin Intl., returning Mon, Sep 8, priced at $339 just found

Mon, Sep 1 - Mon, Sep 8

STL

Lambert-St. Louis Intl.

SJU

Luis Munoz Marin Intl.

$350 Roundtrip, just found

$350

Roundtrip

just found

Select United flight, departing Mon, Sep 1 from Lambert-St. Louis Intl. to Luis Munoz Marin Intl., returning Mon, Sep 8, priced at $350 just found

Sat, Sep 6 - Tue, Sep 9

STL

Lambert-St. Louis Intl.

SJU

Luis Munoz Marin Intl.

$352 Roundtrip, just found

$352

Roundtrip

just found

Select American Airlines flight, departing Sat, Sep 6 from Lambert-St. Louis Intl. to Luis Munoz Marin Intl., returning Tue, Sep 9, priced at $352 just found

Sun, Aug 31 - Sat, Sep 6

STL

Lambert-St. Louis Intl.

SJU

Luis Munoz Marin Intl.

$354 Roundtrip, found 1 day ago

$354

Roundtrip

found 1 day ago

Select Spirit Airlines flight, departing Sun, Aug 31 from Lambert-St. Louis Intl. to Luis Munoz Marin Intl., returning Sat, Sep 6, priced at $354 found 1 day ago

Mon, Sep 1 - Mon, Sep 8

STL

Lambert-St. Louis Intl.

SJU

Luis Munoz Marin Intl.

$356 Roundtrip, just found

$356

Roundtrip

just found

Select Frontier Airlines flight, departing Mon, Sep 1 from Lambert-St. Louis Intl. to Luis Munoz Marin Intl., returning Mon, Sep 8, priced at $356 just found

Mon, Sep 1 - Mon, Sep 8

STL

Lambert-St. Louis Intl.

SJU

Luis Munoz Marin Intl.

$358 Roundtrip, just found

$358

Roundtrip

just found

Select Frontier Airlines flight, departing Mon, Sep 1 from Lambert-St. Louis Intl. to Luis Munoz Marin Intl., returning Mon, Sep 8, priced at $358 just found

Thu, Aug 7 - Sun, Aug 10

STL

Lambert-St. Louis Intl.

SJU

Luis Munoz Marin Intl.

$360 Roundtrip, found 1 day ago

$360

Roundtrip

found 1 day ago

Select Spirit Airlines flight, departing Thu, Aug 7 from Lambert-St. Louis Intl. to Luis Munoz Marin Intl., returning Sun, Aug 10, priced at $360 found 1 day ago

Fri, Sep 5 - Sat, Sep 6

STL

Lambert-St. Louis Intl.

SJU

Luis Munoz Marin Intl.

$369 Roundtrip, found 1 day ago

$369

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Fri, Sep 5 from Lambert-St. Louis Intl. to Luis Munoz Marin Intl., returning Sat, Sep 6, priced at $369 found 1 day ago

Tue, Aug 5 - Fri, Aug 8

STL

Lambert-St. Louis Intl.

SJU

Luis Munoz Marin Intl.

$480 Roundtrip, found 1 day ago

$480

Roundtrip

found 1 day ago

Select United flight, departing Tue, Aug 5 from Lambert-St. Louis Intl. to Luis Munoz Marin Intl., returning Fri, Aug 8, priced at $480 found 1 day ago