$223+ Cheap flights from Seattle (SEA) to Puerto Rico
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 7/9. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — SJU
Jul 18 — Jul 251
Round-trip
1 adult, Economy
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Find cheap flights from Seattle to Puerto Rico with Cheapflights
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Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Cheapest flights from Seattle to Puerto RicoExplore the most affordable flight options available from Seattle to Puerto Rico. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 18, 2026.
Explore the most affordable flight options available from Seattle to Puerto Rico. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 18, 2026.
This Cheapflightsfares deal was found by Cheapflights users on 6/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/189:40 pm
SEA
- SJU
1 stop12h 54m
JetBlue
Sat 10/310:30 am
SJU
- SEA
1 stop13h 12m
JetBlue
Deal found 6/15![JetBlue logo]()
$460
This Delta deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/59:55 pm
SEA
- SJU
1 stop11h 10m
Delta
Sat 12/127:15 am
SJU
- SEA
2 stops15h 15m
Delta
Deal found 6/16![Delta logo]()
$464
This American Airlines deal was found by Cheapflights users on 6/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/28:21 pm
SEA
- SJU
1 stop16h 50m
American Airlines
Tue 9/87:00 am
SJU
- SEA
1 stop18h 56m
American Airlines
Deal found 6/15![American Airlines logo]()
$469
This Cheapflightsfares deal was found by Cheapflights users on 6/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/910:15 pm
SEA
- SJU
1 stop10h 13m
JetBlue
Tue 10/131:00 pm
SJU
- SEA
1 stop11h 15m
JetBlue
Deal found 6/18![JetBlue logo]()
$470
This United Airlines deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/237:30 am
SEA
- BQN
1 stop12h 39m
United Airlines
Fri 9/2512:15 am
BQN
- SEA
2 stops18h 51m
United Airlines
Deal found 6/16![United Airlines logo]()
$474
This American Airlines deal was found by Cheapflights users on 6/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/1811:56 pm
SEA
- SJU
2 stops13h 15m
American Airlines
Tue 8/256:00 am
SJU
- SEA
2 stops13h 41m
American Airlines
Deal found 6/18![American Airlines logo]()
$474
This American Airlines deal was found by Cheapflights users on 6/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/23:47 pm
SEA
- SJU
1 stop20h 07m
American Airlines
Sun 9/612:55 am
SJU
- SEA
1 stop11h 34m
American Airlines
Deal found 6/18![American Airlines logo]()
$479
This American Airlines deal was found by Cheapflights users on 6/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/125:50 am
SEA
- SJU
1 stop14h 25m
American Airlines
Sat 9/57:00 am
SJU
- SEA
1 stop18h 56m
American Airlines
Deal found 6/13![American Airlines logo]()
$494
This Delta deal was found by Cheapflights users on 6/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/257:35 pm
SEA
- SJU
2 stops13h 01m
Delta
Wed 11/47:30 am
SJU
- SEA
2 stops18h 35m
Delta
Deal found 6/13![Delta logo]()
$499
This United Airlines deal was found by Cheapflights users on 6/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/910:58 pm
SEA
- SJU
1 stop11h 47m
United Airlines
Mon 10/121:00 am
SJU
- SEA
2 stops14h 48m
United Airlines
Deal found 6/18![United Airlines logo]()
$503
This United Airlines deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/96:43 pm
SEA
- SJU
2 stops14h 51m
United Airlines
Thu 10/152:55 pm
SJU
- SEA
1 stop10h 50m
United Airlines
Deal found 6/17![United Airlines logo]()
$505
This American Airlines deal was found by Cheapflights users on 6/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/278:11 am
SEA
- SJU
1 stop11h 36m
American Airlines
Sat 12/58:18 am
SJU
- SEA
1 stop16h 38m
American Airlines
Deal found 6/18![American Airlines logo]()
$509
Best flights from Seattle to Puerto RicoDiscover carefully curated flight deals from Seattle to Puerto Rico that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 18, 2026.
Discover carefully curated flight deals from Seattle to Puerto Rico that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 18, 2026.
This Delta deal was found by Cheapflights users on 6/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/1410:40 pm
SEA
- SJU
1 stop10h 33m
Delta
Fri 9/2512:58 pm
SJU
- SEA
1 stop10h 24m
Delta
Deal found 6/15![Delta logo]()
$464
This United Airlines deal was found by Cheapflights users on 6/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/127:30 am
SEA
- BQN
1 stop12h 39m
United Airlines
Fri 9/2512:15 am
BQN
- SEA
3 stops23h 46m
United Airlines
Deal found 6/13![United Airlines logo]()
$554
This Southwest deal was found by Cheapflights users on 6/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/185:20 am
SEA
- SJU
2 stops12h 45m
Southwest
Mon 8/245:00 am
SJU
- SEA
2 stops12h 55m
Southwest
Deal found 6/14![Southwest logo]()
$556
This Delta deal was found by Cheapflights users on 6/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/1211:59 pm
SEA
- SJU
1 stop8h 49m
Delta
Mon 9/2112:58 pm
SJU
- SEA
1 stop14h 01m
Delta
Deal found 6/15![Delta logo]()
$548
This United Airlines deal was found by Cheapflights users on 6/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/147:30 am
SEA
- BQN
1 stop12h 39m
United Airlines
Mon 9/2812:15 am
BQN
- SEA
3 stops23h 22m
United Airlines
Deal found 6/13![United Airlines logo]()
$554
This Southwest deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/77:25 pm
SEA
- SJU
2 stops12h 25m
Southwest
Thu 8/1311:35 am
SJU
- SEA
2 stops12h 10m
Southwest
Deal found 6/17![Southwest logo]()
$560
This Delta deal was found by Cheapflights users on 6/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/167:15 am
SEA
- SJU
1 stop13h 29m
Delta
Mon 9/2112:58 pm
SJU
- SEA
1 stop14h 01m
Delta
Deal found 6/15![Delta logo]()
$548
This United Airlines deal was found by Cheapflights users on 6/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/1411:00 pm
SEA
- SJU
2 stops11h 53m
United Airlines
Tue 9/221:00 am
SJU
- SEA
1 stop13h 03m
United Airlines
Deal found 6/15![United Airlines logo]()
$554
This Southwest deal was found by Cheapflights users on 6/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/99:00 am
SEA
- SJU
2 stops12h 10m
Southwest
Mon 7/1311:35 am
SJU
- SEA
2 stops14h 35m
Southwest
Deal found 6/14![Southwest logo]()
$696
This United Airlines deal was found by Cheapflights users on 6/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/42:34 pm
SEA
- SJU
2 stops21h 10m
United Airlines
Sat 9/121:00 am
SJU
- SEA
2 stops13h 44m
United Airlines
Deal found 6/13![United Airlines logo]()
$638
This Southwest deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/39:25 pm
SEA
- SJU
1 stop12h 00m
Southwest
Thu 7/1610:20 am
SJU
- SEA
2 stops14h 30m
Southwest
Deal found 6/16![Southwest logo]()
$715
This United Airlines deal was found by Cheapflights users on 6/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/227:30 am
SEA
- BQN
1 stop12h 39m
United Airlines
Tue 8/2512:15 am
BQN
- SEA
2 stops17h 37m
United Airlines
Deal found 6/13![United Airlines logo]()
$724
This Southwest deal was found by Cheapflights users on 6/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/105:30 am
SEA
- SJU
2 stops13h 00m
Southwest
Wed 7/1510:00 am
SJU
- SEA
2 stops13h 30m
Southwest
Deal found 6/14![Southwest logo]()
$801
This United Airlines deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/107:30 am
SEA
- BQN
1 stop12h 39m
United Airlines
Sun 8/1612:15 am
BQN
- SEA
1 stop13h 48m
United Airlines
Deal found 6/17![United Airlines logo]()
$731
This Southwest deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/211:05 am
SEA
- SJU
1 stop10h 20m
Southwest
Sun 7/54:30 pm
SJU
- SEA
1 stop10h 40m
Southwest
Deal found 6/17![Southwest logo]()
$866
This United Airlines deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/312:33 pm
SEA
- SJU
2 stops11h 56m
United Airlines
Mon 8/177:00 am
SJU
- SEA
2 stops16h 43m
United Airlines
Deal found 6/17![United Airlines logo]()
$880
This United Airlines deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/611:59 pm
SEA
- CPX
2 stops14h 22m
United Airlines
Wed 9/910:48 am
CPX
- SEA
2 stops15h 48m
United Airlines
Deal found 6/16![United Airlines logo]()
$1,558
Last-minute flights from Seattle to Puerto RicoDiscover last-minute flight deals from Seattle to Puerto Rico. Data last updated June 18, 2026 and is based on user searches.
Discover last-minute flight deals from Seattle to Puerto Rico. Data last updated June 18, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 6/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/305:00 am
SEA
- BQN
2 stops15h 09m
United Airlines
Fri 7/312:15 am
BQN
- SEA
2 stops18h 56m
United Airlines
Deal found 6/15![United Airlines logo]()
$1,017
This United Airlines deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/111:00 pm
SEA
- BQN
1 stop21h 09m
United Airlines
Sat 7/412:15 am
BQN
- SEA
1 stop24h 06m
United Airlines
Deal found 6/16![United Airlines logo]()
$1,181
This American Airlines deal was found by Cheapflights users on 6/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/75:10 am
SEA
- SJU
1 stop14h 49m
American Airlines
Tue 7/284:38 pm
SJU
- SEA
1 stop10h 29m
American Airlines
Deal found 6/14![American Airlines logo]()
$589
This American Airlines deal was found by Cheapflights users on 6/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/86:00 am
SEA
- SJU
1 stop14h 58m
American Airlines
Mon 8/247:00 am
SJU
- SEA
1 stop18h 56m
American Airlines
Deal found 6/18![American Airlines logo]()
$599
This American Airlines deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/912:56 pm
SEA
- SJU
1 stop17h 49m
American Airlines
Mon 7/134:38 pm
SJU
- SEA
1 stop10h 29m
American Airlines
Deal found 6/17![American Airlines logo]()
$583
This Faresmojo deal was found by Cheapflights users on 6/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Faresmojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/157:00 am
SEA
- SJU
1 stop10h 34m
JetBlue
Fri 7/242:05 am
SJU
- SEA
1 stop13h 48m
JetBlue
Deal found 6/13![JetBlue logo]()
$602
This American Airlines deal was found by Cheapflights users on 6/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/225:10 am
SEA
- SJU
1 stop14h 49m
American Airlines
Tue 7/2812:59 am
SJU
- SEA
1 stop11h 28m
American Airlines
Deal found 6/14![American Airlines logo]()
$519
This American Airlines deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/235:10 am
SEA
- SJU
1 stop14h 49m
American Airlines
Mon 7/2712:59 am
SJU
- SEA
1 stop11h 28m
American Airlines
Deal found 6/16![American Airlines logo]()
$615
This American Airlines deal was found by Cheapflights users on 6/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/285:10 am
SEA
- SJU
1 stop14h 49m
American Airlines
Tue 8/111:38 pm
SJU
- SEA
1 stop13h 42m
American Airlines
Deal found 6/14![American Airlines logo]()
$555
This American Airlines deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/305:10 am
SEA
- SJU
1 stop14h 49m
American Airlines
Tue 8/411:54 am
SJU
- SEA
1 stop15h 13m
American Airlines
Deal found 6/17![American Airlines logo]()
$593
This American Airlines deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/315:10 am
SEA
- SJU
1 stop14h 49m
American Airlines
Mon 8/1710:33 am
SJU
- SEA
1 stop16h 47m
American Airlines
Deal found 6/17![American Airlines logo]()
$558
This American Airlines deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/315:10 am
SEA
- SJU
1 stop14h 49m
American Airlines
Mon 8/310:35 am
SJU
- SEA
1 stop16h 32m
American Airlines
Deal found 6/17![American Airlines logo]()
$580
One-way flights from Seattle to Puerto RicoSearch for one-way flight options from Seattle to Puerto Rico. Find affordable one-way fares based on user searches. Data last updated June 18, 2026.
Search for one-way flight options from Seattle to Puerto Rico. Find affordable one-way fares based on user searches. Data last updated June 18, 2026.
This Kiwi.com deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/97:06 pm
SEA
- SJU
2 stops26h 22m
Frontier
Deal found 6/17![Frontier logo]()
$223
This Kiwi.com deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/87:06 pm
SEA
- SJU
2 stops26h 22m
Frontier
Deal found 6/16![Frontier logo]()
$228
This Delta deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/2110:35 pm
SEA
- SJU
1 stop10h 11m
Delta
Deal found 6/16![Delta logo]()
$232
This United Airlines deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/227:30 am
SEA
- BQN
1 stop12h 39m
United Airlines
Deal found 6/16![United Airlines logo]()
$237
This American Airlines deal was found by Cheapflights users on 6/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/1811:16 pm
SEA
- SJU
1 stop12h 38m
American Airlines
Deal found 6/18![American Airlines logo]()
$237
This American Airlines deal was found by Cheapflights users on 6/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/248:21 pm
SEA
- SJU
1 stop16h 50m
American Airlines
Deal found 6/13![American Airlines logo]()
$238
This Trip.com deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/2110:34 am
SEA
- SJU
2 stops30h 08m
Frontier
Deal found 6/17![Frontier logo]()
$260
This Kiwi.com deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/68:53 pm
SEA
- SJU
2 stops48h 48m
Frontier
Deal found 6/17![Frontier logo]()
$265
This American Airlines deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/912:56 pm
SEA
- SJU
1 stop17h 49m
American Airlines
Deal found 6/17![American Airlines logo]()
$267
This Kiwi.com deal was found by Cheapflights users on 6/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/137:06 pm
SEA
- SJU
2 stops26h 22m
Frontier
Deal found 6/15![Frontier logo]()
$269
This United Airlines deal was found by Cheapflights users on 6/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/135:00 am
SEA
- SJU
1 stop12h 38m
United Airlines
Deal found 6/15![United Airlines logo]()
$278
This Kiwi.com deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/2110:34 am
SEA
- BQN
2 stops36h 36m
Frontier
Deal found 6/17![Frontier logo]()
$299
Find flight deals from Seattle to Puerto Rico
Keep the following information in mind while searching for Seattle to Puerto Rico flight deals. Data was last updated June 18, 2026.
Round-trip from | $464 (American Airlines) |
|---|---|
One-way from | $223 (Kiwi.com) |
Popular in | December |
Cheapest in | October |
Average price | $656 |
Cheapflights Fare Finder
Customize your flight search to find flights from Seattle to Puerto Rico that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated June 18, 2026.
Use the filters below to find and compare flights from Seattle to Puerto Rico that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Quickest round-trip
SeattleSan Juan
SEA - SJU
SEASJU
Seattle/Tacoma Intl
Mon 9/14
10:40 pm-12:13 pm
1 stop10h 33m
San Juan Luis Munoz Marin Intl
Fri 9/25
12:58 pm-8:22 pm
1 stop10h 24m
$464
SeattleSan Juan
SEA - SJU
SEASJU
Seattle/Tacoma Intl
Sat 9/12
11:59 pm-11:48 am
1 stop8h 49m
San Juan Luis Munoz Marin Intl
Mon 9/21
12:58 pm-11:59 pm
1 stop14h 01m
$548
SeattleSan Juan
SEA - SJU
SEASJU
Seattle/Tacoma Intl
Wed 9/16
7:15 am-11:44 pm
1 stop13h 29m
San Juan Luis Munoz Marin Intl
Mon 9/21
12:58 pm-11:59 pm
1 stop14h 01m
$548
SeattleAguadilla
SEA - BQN
SEABQN
Seattle/Tacoma Intl
Sat 9/12
7:30 am-11:09 pm
1 stop12h 39m
Aguadilla Borinquen
Fri 9/25
12:15 am-9:01 pm
3 stops23h 46m
$554
SeattleAguadilla
SEA - BQN
SEABQN
Seattle/Tacoma Intl
Mon 9/14
7:30 am-11:09 pm
1 stop12h 39m
Aguadilla Borinquen
Mon 9/28
12:15 am-8:37 pm
3 stops23h 22m
$554
SeattleSan Juan
SEA - SJU
SEASJU
Seattle/Tacoma Intl
Mon 9/14
11:00 pm-1:53 pm
2 stops11h 53m
San Juan Luis Munoz Marin Intl
Tue 9/22
1:00 am-11:03 am
1 stop13h 03m
$554
SeattleSan Juan
SEA - SJU
SEASJU
Seattle/Tacoma Intl
Tue 8/18
5:20 am-9:05 pm
2 stops12h 45m
San Juan Luis Munoz Marin Intl
Mon 8/24
5:00 am-2:55 pm
2 stops12h 55m
$556
SeattleSan Juan
SEA - SJU
SEASJU
Seattle/Tacoma Intl
Fri 8/7
7:25 pm-10:50 am
2 stops12h 25m
San Juan Luis Munoz Marin Intl
Thu 8/13
11:35 am-8:45 pm
2 stops12h 10m
$560
SeattleSan Juan
SEA - SJU
SEASJU
Seattle/Tacoma Intl
Fri 9/4
2:34 pm-2:44 pm
2 stops21h 10m
San Juan Luis Munoz Marin Intl
Sat 9/12
1:00 am-11:44 am
2 stops13h 44m
$638
SeattleSan Juan
SEA - SJU
SEASJU
Seattle/Tacoma Intl
Thu 7/9
9:00 am-12:10 am
2 stops12h 10m
San Juan Luis Munoz Marin Intl
Mon 7/13
11:35 am-11:10 pm
2 stops14h 35m
$696
Showing 1-10 of 29 resultsSorted by cheapest first
Best time to book a flight from Seattle to Puerto Rico
Have a flexible travel schedule? Discover the best time to fly to Puerto Rico from Seattle with our price prediction graph.
SEA-SJU
SEA-BQN
SEA-CPX
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Seattle to Puerto Rico
SEA-PR0
SEA-SJU
SEA-BQN
SEA-CPX
What is the cheapest month to book a flight from Seattle to Puerto Rico?
Currently, February is the cheapest month in which you can book a flight from Seattle to Puerto Rico (average of $182). Flying from Seattle to Puerto Rico in June is currently the most expensive (average of $454). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
How far ahead should I book a flight from Seattle to Puerto Rico?
Booking 87 days in advance of your planned departure date is, on average, the best time to get cheap flights from Seattle to Puerto Rico. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
Reviews of airlines servicing Puerto Rico
Get insights into the airlines that provide service to Puerto Rico. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Puerto Rico. Reviews last updated June 18, 2026.
Read reviews from past customers who have flown Southwest,Delta, andUnited Airlines from Seattle to Puerto Rico. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
7.5
Overall
7.9
Comfort
8.0
Food
7.0
Boarding
8.1
Crew
8.6
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Entertainment
7.5
Overall
7.9
Comfort
8.0
Food
7.0
Boarding
8.1
Crew
8.6
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Entertainment
7.5
Overall
7.9
Comfort
8.0
Food
7.0
Boarding
8.1
Crew
8.6
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Entertainment
7.5
Overall
7.9
Comfort
8.0
Food
7.0
Boarding
8.1
Crew
8.6
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Entertainment
7.5
Overall
7.9
Comfort
8.0
Food
7.0
Boarding
8.1
Crew
8.6
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Entertainment
7.5
Overall
7.9
Comfort
8.0
Food
7.0
Boarding
8.1
Crew
8.6
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Related info for your journey
Find useful and relevant information for your journey from Seattle to Puerto Rico. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for Seattle to Puerto Rico
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Puerto Rico by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Seattle to Puerto Rico by cabin class
Find flights from Seattle to Puerto Rico, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Seattle and Puerto Rico flights
Browse other Seattle and Puerto Rico flight options. Last updated on June 18, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 8 airlines flying from Seattle to Puerto Rico
Discover the top 8 airlines that operate flights from Seattle to Puerto Rico. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated June 18, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$175 | Average$344 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$282 | Average$451 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$342 | Average$646 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$363 | Average$659 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$365 | Average$586 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$454 | Average$828 | FlexibilityNo cancel fee | On-time83% | |
| Cheapest$494 | Average$631 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$587 | Average$727 | FlexibilityNo cancel fee | On-time75% |