Flights from St. Louis to Río Hondo

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, found 5 days ago

$219

Roundtrip

found 5 days ago

Select Delta flight, departing Wed, Sep 3 from Lambert-St. Louis Intl. to Luis Munoz Marin Intl., returning Thu, Sep 4, priced at $219 found 5 days ago

Mon, Sep 1 - Tue, Sep 9

STL

Lambert-St. Louis Intl.

SJU

Luis Munoz Marin Intl.

$259 Roundtrip, found 5 days ago

$259

Roundtrip

found 5 days ago

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 found 5 days ago

Mon, Sep 1 - Mon, Sep 8

STL

Lambert-St. Louis Intl.

SJU

Luis Munoz Marin Intl.

$274 Roundtrip, found 5 days ago

$274

Roundtrip

found 5 days ago

Select Delta flight, departing Mon, Sep 1 from Lambert-St. Louis Intl. to Luis Munoz Marin Intl., returning Mon, Sep 8, priced at $274 found 5 days ago

Mon, Sep 1 - Mon, Sep 8

STL

Lambert-St. Louis Intl.

SJU

Luis Munoz Marin Intl.

$294 Roundtrip, found 5 days ago

$294

Roundtrip

found 5 days ago

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 found 5 days ago

Wed, Sep 3 - Sat, Sep 6

STL

Lambert-St. Louis Intl.

SJU

Luis Munoz Marin Intl.

$295 Roundtrip, found 5 days ago

$295

Roundtrip

found 5 days ago

Select Delta flight, departing Wed, Sep 3 from Lambert-St. Louis Intl. to Luis Munoz Marin Intl., returning Sat, Sep 6, priced at $295 found 5 days ago

Fri, Sep 5 - Sat, Sep 6

STL

Lambert-St. Louis Intl.

SJU

Luis Munoz Marin Intl.

$317 Roundtrip, found 5 days ago

$317

Roundtrip

found 5 days 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 $317 found 5 days ago

Fri, Sep 5 - Sun, Sep 7

STL

Lambert-St. Louis Intl.

SJU

Luis Munoz Marin Intl.

$318 Roundtrip, found 5 days ago

$318

Roundtrip

found 5 days ago

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 found 5 days ago

Sun, Sep 7 - Mon, Sep 8

STL

Lambert-St. Louis Intl.

SJU

Luis Munoz Marin Intl.

$323 Roundtrip, found 5 days ago

$323

Roundtrip

found 5 days ago

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 found 5 days ago

Mon, Sep 1 - Mon, Sep 8

STL

Lambert-St. Louis Intl.

SJU

Luis Munoz Marin Intl.

$339 Roundtrip, found 5 days ago

$339

Roundtrip

found 5 days ago

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 found 5 days ago

Thu, Sep 4 - Mon, Sep 8

STL

Lambert-St. Louis Intl.

SJU

Luis Munoz Marin Intl.

$350 Roundtrip, found 1 day ago

$350

Roundtrip

found 1 day ago

Select American Airlines flight, departing Thu, Sep 4 from Lambert-St. Louis Intl. to Luis Munoz Marin Intl., returning Mon, Sep 8, priced at $350 found 1 day ago

Sat, Sep 6 - Tue, Sep 9

STL

Lambert-St. Louis Intl.

SJU

Luis Munoz Marin Intl.

$352 Roundtrip, found 5 days ago

$352

Roundtrip

found 5 days ago

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 found 5 days ago

Mon, Sep 1 - Mon, Sep 8

STL

Lambert-St. Louis Intl.

SJU

Luis Munoz Marin Intl.

$356 Roundtrip, found 5 days ago

$356

Roundtrip

found 5 days ago

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 found 5 days ago

Mon, Sep 1 - Mon, Sep 8

STL

Lambert-St. Louis Intl.

SJU

Luis Munoz Marin Intl.

$358 Roundtrip, found 5 days ago

$358

Roundtrip

found 5 days ago

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 found 5 days ago

Wed, Sep 3 - Wed, Sep 10

STL

Lambert-St. Louis Intl.

SJU

Luis Munoz Marin Intl.

$375 Roundtrip, found 5 days ago

$375

Roundtrip

found 5 days ago

Select Delta flight, departing Wed, Sep 3 from Lambert-St. Louis Intl. to Luis Munoz Marin Intl., returning Wed, Sep 10, priced at $375 found 5 days ago

Tue, Sep 2 - Sun, Sep 7

STL

Lambert-St. Louis Intl.

SJU

Luis Munoz Marin Intl.

$377 Roundtrip, found 5 days ago

$377

Roundtrip

found 5 days ago

Select American Airlines flight, departing Tue, Sep 2 from Lambert-St. Louis Intl. to Luis Munoz Marin Intl., returning Sun, Sep 7, priced at $377 found 5 days ago

Thu, Sep 4 - Mon, Sep 8

STL

Lambert-St. Louis Intl.

SJU

Luis Munoz Marin Intl.

$387 Roundtrip, found 1 day ago

$387

Roundtrip

found 1 day ago

Select American Airlines flight, departing Thu, Sep 4 from Lambert-St. Louis Intl. to Luis Munoz Marin Intl., returning Mon, Sep 8, priced at $387 found 1 day ago

Mon, Sep 1 - Mon, Sep 8

STL

Lambert-St. Louis Intl.

SJU

Luis Munoz Marin Intl.

$394 Roundtrip, found 5 days ago

$394

Roundtrip

found 5 days ago

Select Spirit Airlines flight, departing Mon, Sep 1 from Lambert-St. Louis Intl. to Luis Munoz Marin Intl., returning Mon, Sep 8, priced at $394 found 5 days ago

Mon, Sep 1 - Mon, Sep 8

STL

Lambert-St. Louis Intl.

SJU

Luis Munoz Marin Intl.

$395 Roundtrip, found 5 days ago

$395

Roundtrip

found 5 days ago

Select United flight, departing Mon, Sep 1 from Lambert-St. Louis Intl. to Luis Munoz Marin Intl., returning Mon, Sep 8, priced at $395 found 5 days ago

Mon, Sep 1 - Mon, Sep 8

STL

Lambert-St. Louis Intl.

SJU

Luis Munoz Marin Intl.

$396 Roundtrip, found 5 days ago

$396

Roundtrip

found 5 days ago

Select Frontier Airlines flight, departing Mon, Sep 1 from Lambert-St. Louis Intl. to Luis Munoz Marin Intl., returning Mon, Sep 8, priced at $396 found 5 days ago

Mon, Sep 1 - Mon, Sep 8

STL

Lambert-St. Louis Intl.

SJU

Luis Munoz Marin Intl.

$397 Roundtrip, found 5 days ago

$397

Roundtrip

found 5 days ago

Select American Airlines flight, departing Mon, Sep 1 from Lambert-St. Louis Intl. to Luis Munoz Marin Intl., returning Mon, Sep 8, priced at $397 found 5 days ago