Popular airlines from Seattle to San Juan
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Cheap Flights from Seattle to San Juan (SEA-SJU)
Prices were available within the past 7 days and start at $142 for one-way flights and $297 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.
Mon, May 19 - Thu, May 29
SEA
Seattle
SJU
San Juan
$297 Roundtrip, found 7 hours ago
$297
Roundtrip
found 7 hours ago
Mon, May 19 - Wed, May 28
SEA
Seattle
SJU
San Juan
$317 Roundtrip, found 10 hours ago
$317
Roundtrip
found 10 hours ago
Mon, Jun 9 - Wed, Jun 18
SEA
Seattle
SJU
San Juan
$334 Roundtrip, found 10 hours ago
$334
Roundtrip
found 10 hours ago
Sat, Jun 14 - Wed, Jun 18
SEA
Seattle
SJU
San Juan
$336 Roundtrip, found 20 hours ago
$336
Roundtrip
found 20 hours ago
Sun, May 18 - Wed, May 28
SEA
Seattle
SJU
San Juan
$345 Roundtrip, found 7 hours ago
$345
Roundtrip
found 7 hours ago
Tue, Nov 4 - Tue, Nov 11
SEA
Seattle
SJU
San Juan
$357 Roundtrip, found 10 hours ago
$357
Roundtrip
found 10 hours ago
Find the cheapest month to fly from Seattle (SEA) to San Juan (SJU)
March is typically the cheapest month to fly
From $219 - $484 per traveler.
Graph displaying average flight prices per month
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