STLLambert-Saint Louis International Airport
St. Louis, United States
SJULuis Muñoz Marín International Airport
San Juan, Puerto Rico
$522 USD
-57%$225 USD
Verified Dec 1, 2025 at 5:21 AMMarch 2026
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Rare Availability
5% of dates checked are available within 10% of the lowest price
Thursday, March 19th, 2026
10 round-trip options
Returning
Tue, Mar 24, 2026•5 Day Trip
$734 USD
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Wed, Mar 25, 2026•6 Day Trip
$634 USD
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Thu, Mar 26, 2026•7 Day Trip
$634 USD
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Fri, Mar 27, 2026•8 Day Trip
$836 USD
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Sat, Mar 28, 2026•9 Day Trip
$928 USD
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Sun, Mar 29, 2026•10 Day Trip
$1,241 USD
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Mon, Mar 30, 2026•11 Day Trip
$814 USD
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Tue, Mar 31, 2026•12 Day Trip
$702 USD
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Wed, Apr 1, 2026•13 Day Trip
$618 USD
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Thu, Apr 2, 2026•14 Day Trip
$707 USD