$161+ 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 4/24. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — SJU
Apr 15 — Apr 221
Round-trip
1 adult, Economy
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Find cheap flights from Seattle to Puerto Rico with Cheapflights
1. Tell us where you want to go
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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Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Seattle to Puerto Rico
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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 March 16, 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 March 16, 2026.
This Delta deal was found by Cheapflights users on 3/11. 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 4/2511:11 pm
SEA
- SJU
1 stop10h 41m
Delta
Thu 4/301:25 pm
SJU
- SEA
1 stop12h 06m
Delta
Deal found 3/11![Delta logo]()
$416
This KAYAK deal was found by Cheapflights users on 3/13. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1711:59 pm
SEA
- SJU
1 stop13h 51m
JetBlue
Sat 10/31:25 pm
SJU
- SEA
1 stop11h 59m
JetBlue
Deal found 3/13![JetBlue logo]()
$427
This KAYAK deal was found by Cheapflights users on 3/14. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/2411:59 pm
SEA
- SJU
1 stop13h 51m
JetBlue
Mon 10/51:25 pm
SJU
- SEA
1 stop11h 59m
JetBlue
Deal found 3/14![JetBlue logo]()
$433
This United Airlines deal was found by Cheapflights users on 3/11. 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.
Thu 9/175:00 am
SEA
- BQN
2 stops15h 09m
United Airlines
Wed 9/2312:15 am
BQN
- SEA
2 stops16h 05m
United Airlines
Deal found 3/11![United Airlines logo]()
$434
This Southwest deal was found by Cheapflights users on 3/16. 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.
Tue 4/147:10 pm
SEA
- SJU
2 stops12h 25m
Southwest
Wed 4/225:35 am
SJU
- SEA
2 stops14h 20m
Southwest
Deal found 3/16![Southwest logo]()
$434
This Delta deal was found by Cheapflights users on 3/11. 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 4/2710:40 pm
SEA
- SJU
1 stop10h 32m
Delta
Fri 5/17:15 am
SJU
- SEA
1 stop15h 44m
Delta
Deal found 3/11![Delta logo]()
$435
This United Airlines deal was found by Cheapflights users on 3/15. 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 4/135:00 am
SEA
- SJU
1 stop9h 38m
United Airlines
Tue 4/282:55 pm
SJU
- SEA
1 stop11h 17m
United Airlines
Deal found 3/15![United Airlines logo]()
$436
This American Airlines deal was found by Cheapflights users on 3/11. 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.
Sun 11/111:20 pm
SEA
- SJU
1 stop12h 14m
American Airlines
Tue 11/106:25 am
SJU
- SEA
1 stop19h 50m
American Airlines
Deal found 3/11![American Airlines logo]()
$451
This Kiwi.com deal was found by Cheapflights users on 3/15. 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.
Fri 4/246:20 pm
SEA
- SJU
1 stop15h 33m
Multiple Airlines
Fri 5/11:59 am
SJU
- SEA
2 stops34h 28m
Multiple Airlines
Deal found 3/15![Multiple Airlines logo]()
$452
This United Airlines deal was found by Cheapflights users on 3/11. 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 5/111:59 pm
SEA
- SJU
1 stop12h 43m
United Airlines
Tue 5/52:55 pm
SJU
- SEA
1 stop10h 57m
United Airlines
Deal found 3/11![United Airlines logo]()
$454
This United Airlines deal was found by Cheapflights users on 3/14. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/287:00 am
SEA
- SJU
1 stop10h 34m
United Airlines
Tue 5/57:20 am
SJU
- SEA
2 stops14h 40m
United Airlines
Deal found 3/14![United Airlines logo]()
$455
This American Airlines deal was found by Cheapflights users on 3/12. 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 4/2812:59 am
SEA
- SJU
1 stop19h 03m
American Airlines
Tue 5/56:00 am
SJU
- SEA
1 stop18h 23m
American Airlines
Deal found 3/12![American Airlines logo]()
$459
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 March 16, 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 March 16, 2026.
This United Airlines deal was found by Cheapflights users on 3/11. 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 4/257:37 pm
SEA
- SJU
2 stops13h 57m
United Airlines
Thu 4/307:40 am
SJU
- SEA
1 stop11h 08m
United Airlines
Deal found 3/11![United Airlines logo]()
$416
This Southwest deal was found by Cheapflights users on 3/15. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/1011:00 am
SEA
- SJU
1 stop10h 25m
Southwest
Fri 7/175:30 am
SJU
- SEA
1 stop16h 00m
Southwest
Deal found 3/15![Southwest logo]()
$525
This Delta deal was found by Cheapflights users on 3/11. 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 4/227:20 am
SEA
- SJU
1 stop13h 39m
Delta
Fri 5/17:15 am
SJU
- SEA
1 stop15h 44m
Delta
Deal found 3/11![Delta logo]()
$545
This United Airlines deal was found by Cheapflights users on 3/11. 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 5/27:25 am
SEA
- BQN
1 stop12h 44m
United Airlines
Tue 5/512:15 am
BQN
- SEA
2 stops18h 33m
United Airlines
Deal found 3/11![United Airlines logo]()
$524
This Southwest deal was found by Cheapflights users on 3/14. 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.
Sun 5/34:45 pm
SEA
- SJU
2 stops13h 25m
Southwest
Sat 5/91:10 pm
SJU
- SEA
1 stop10h 25m
Southwest
Deal found 3/14![Southwest logo]()
$530
This United Airlines deal was found by Cheapflights users on 3/12. 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 4/295:00 am
SEA
- SJU
2 stops15h 50m
United Airlines
Wed 5/67:20 am
SJU
- SEA
2 stops14h 40m
United Airlines
Deal found 3/12![United Airlines logo]()
$525
This Southwest deal was found by Cheapflights users on 3/15. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/2110:30 pm
SEA
- SJU
1 stop11h 40m
Southwest
Sun 8/305:30 am
SJU
- SEA
1 stop12h 10m
Southwest
Deal found 3/15![Southwest logo]()
$554
This United Airlines deal was found by Cheapflights users on 3/12. 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 5/46:58 pm
SEA
- SJU
2 stops15h 47m
United Airlines
Wed 5/67:20 am
SJU
- SEA
2 stops18h 27m
United Airlines
Deal found 3/12![United Airlines logo]()
$544
This Southwest deal was found by Cheapflights users on 3/11. 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 7/95:30 am
SEA
- SJU
2 stops13h 00m
Southwest
Sun 7/195:20 am
SJU
- SEA
1 stop16h 45m
Southwest
Deal found 3/11![Southwest logo]()
$580
This United Airlines deal was found by Cheapflights users on 3/14. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/87:00 am
SEA
- SJU
1 stop10h 34m
United Airlines
Tue 4/141:00 am
SJU
- SEA
2 stops13h 48m
United Airlines
Deal found 3/14![United Airlines logo]()
$548
This United Airlines deal was found by Cheapflights users on 3/11. 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 5/16:58 pm
SEA
- SJU
2 stops25h 52m
United Airlines
Mon 5/41:00 am
SJU
- SEA
2 stops17h 51m
United Airlines
Deal found 3/11![United Airlines logo]()
$584
This United Airlines deal was found by Cheapflights users on 3/12. 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.
Thu 3/265:00 am
SEA
- BQN
2 stops14h 57m
United Airlines
Sun 3/2912:15 am
BQN
- SEA
2 stops26h 12m
United Airlines
Deal found 3/12![United Airlines logo]()
$1,235
This United Airlines deal was found by Cheapflights users on 3/13. 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 3/285:00 am
SEA
- BQN
2 stops14h 57m
United Airlines
Tue 3/3112:15 am
BQN
- SEA
1 stop13h 47m
United Airlines
Deal found 3/13![United Airlines logo]()
$1,387
This United Airlines deal was found by Cheapflights users on 3/16. 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.
Fri 4/37:00 am
SEA
- BQN
2 stops13h 09m
United Airlines
Tue 4/712:15 am
BQN
- SEA
2 stops16h 01m
United Airlines
Deal found 3/16![United Airlines logo]()
$1,521
This United Airlines deal was found by Cheapflights users on 3/15. 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 3/3011:05 pm
SEA
- CPX
2 stops14h 08m
United Airlines
Fri 4/310:30 am
CPX
- SEA
2 stops15h 42m
United Airlines
Deal found 3/15![United Airlines logo]()
$2,680
Last-minute flights from Seattle to Puerto RicoDiscover last-minute flight deals from Seattle to Puerto Rico. Data last updated March 16, 2026 and is based on user searches.
Discover last-minute flight deals from Seattle to Puerto Rico. Data last updated March 16, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 3/13. 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 3/285:00 am
SEA
- BQN
2 stops14h 57m
United Airlines
Tue 3/3112:15 am
BQN
- SEA
2 stops17h 31m
United Airlines
Deal found 3/13![United Airlines logo]()
$1,147
This United Airlines deal was found by Cheapflights users on 3/15. 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 4/135:00 am
SEA
- SJU
1 stop9h 38m
United Airlines
Tue 4/282:55 pm
SJU
- SEA
1 stop11h 17m
United Airlines
Deal found 3/15![United Airlines logo]()
$436
This Southwest deal was found by Cheapflights users on 3/16. 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.
Tue 4/147:10 pm
SEA
- SJU
2 stops12h 25m
Southwest
Wed 4/225:35 am
SJU
- SEA
2 stops14h 20m
Southwest
Deal found 3/16![Southwest logo]()
$434
This Kiwi.com deal was found by Cheapflights users on 3/15. 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.
Fri 4/246:20 pm
SEA
- SJU
1 stop15h 33m
Multiple Airlines
Fri 5/11:59 am
SJU
- SEA
2 stops34h 28m
Multiple Airlines
Deal found 3/15![Multiple Airlines logo]()
$452
This Delta deal was found by Cheapflights users on 3/11. 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 4/2511:11 pm
SEA
- SJU
1 stop10h 41m
Delta
Thu 4/301:25 pm
SJU
- SEA
1 stop12h 06m
Delta
Deal found 3/11![Delta logo]()
$416
This Delta deal was found by Cheapflights users on 3/11. 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 4/2710:40 pm
SEA
- SJU
1 stop10h 32m
Delta
Fri 5/17:15 am
SJU
- SEA
1 stop15h 44m
Delta
Deal found 3/11![Delta logo]()
$435
This United Airlines deal was found by Cheapflights users on 3/14. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/287:00 am
SEA
- SJU
1 stop10h 34m
United Airlines
Tue 5/57:20 am
SJU
- SEA
2 stops14h 40m
United Airlines
Deal found 3/14![United Airlines logo]()
$455
This Southwest deal was found by Cheapflights users on 3/14. 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 4/286:00 am
SEA
- SJU
2 stops13h 40m
Southwest
Tue 5/55:35 am
SJU
- SEA
2 stops14h 20m
Southwest
Deal found 3/14![Southwest logo]()
$463
This American Airlines deal was found by Cheapflights users on 3/12. 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 4/296:00 am
SEA
- SJU
1 stop14h 02m
American Airlines
Tue 5/511:43 am
SJU
- SEA
2 stops13h 55m
American Airlines
Deal found 3/12![American Airlines logo]()
$459
This American Airlines deal was found by Cheapflights users on 3/15. 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 4/296:00 am
SEA
- SJU
1 stop11h 51m
American Airlines
Wed 5/66:45 am
SJU
- SEA
1 stop15h 51m
American Airlines
Deal found 3/15![American Airlines logo]()
$460
This American Airlines deal was found by Cheapflights users on 3/14. 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 4/296:00 am
SEA
- SJU
1 stop11h 51m
American Airlines
Thu 5/1411:59 pm
SJU
- SEA
1 stop12h 36m
American Airlines
Deal found 3/14![American Airlines logo]()
$468
This eDestinos deal was found by Cheapflights users on 3/14. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/2910:22 am
SEA
- SJU
2 stops23h 01m
Multiple Airlines
Thu 5/146:41 pm
SJU
- SEA
3 stops42h 41m
Multiple Airlines
Deal found 3/14![Multiple Airlines logo]()
$474
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 March 16, 2026.
Search for one-way flight options from Seattle to Puerto Rico. Find affordable one-way fares based on user searches. Data last updated March 16, 2026.
This Kiwi.com deal was found by Cheapflights users on 3/12. 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.
Fri 4/247:12 pm
SEA
- SJU
2 stops39h 56m
Frontier
Deal found 3/12![Frontier logo]()
$161
This Kiwi.com deal was found by Cheapflights users on 3/15. 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.
Tue 4/147:12 pm
SEA
- SJU
2 stops49h 17m
Frontier
Deal found 3/15![Frontier logo]()
$168
This Kiwi.com deal was found by Cheapflights users on 3/11. 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 5/1111:06 am
SEA
- SJU
2 stops36h 02m
Frontier
Deal found 3/11![Frontier logo]()
$176
This Kiwi.com deal was found by Cheapflights users on 3/13. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/17:12 pm
SEA
- SJU
2 stops43h 19m
Multiple Airlines
Deal found 3/13![Multiple Airlines logo]()
$181
This Kiwi.com deal was found by Cheapflights users on 3/12. 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.
Sun 4/267:12 pm
SEA
- SJU
2 stops48h 36m
Frontier
Deal found 3/12![Frontier logo]()
$183
This Kiwi.com deal was found by Cheapflights users on 3/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/135:59 pm
SEA
- SJU
2 stops29h 02m
Frontier
Deal found 3/14![Frontier logo]()
$186
This Kiwi.com deal was found by Cheapflights users on 3/12. 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.
Sat 4/1112:42 pm
SEA
- SJU
3 stops27h 13m
Multiple Airlines
Deal found 3/12![Multiple Airlines logo]()
$193
This Kiwi.com deal was found by Cheapflights users on 3/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/2810:57 am
SEA
- SJU
2 stops21h 55m
Multiple Airlines
Deal found 3/14![Multiple Airlines logo]()
$199
This Kiwi.com deal was found by Cheapflights users on 3/11. 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 5/67:50 pm
SEA
- SJU
3 stops26h 41m
Multiple Airlines
Deal found 3/11![Multiple Airlines logo]()
$200
This Kiwi.com deal was found by Cheapflights users on 3/13. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/257:12 pm
SEA
- SJU
2 stops45h 02m
Multiple Airlines
Deal found 3/13![Multiple Airlines logo]()
$203
This Kiwi.com deal was found by Cheapflights users on 3/12. 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.
Sat 4/1112:42 pm
SEA
- SJU
2 stops32h 23m
Frontier
Deal found 3/12![Frontier logo]()
$204
This United Airlines deal was found by Cheapflights users on 3/12. 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 5/267:30 am
SEA
- BQN
1 stop12h 39m
United Airlines
Deal found 3/12![United Airlines logo]()
$262
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 March 16, 2026.
Round-trip from | $416 (Delta) |
|---|---|
One-way from | $161 (Kiwi.com) |
Popular in | December |
Cheapest in | October |
Average price | $597 |
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 March 16, 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
SeattleSan Juan
SEA - SJU
SEASJU
Seattle/Tacoma Intl
Sat 4/25
7:37 pm-12:34 pm
2 stops13h 57m
San Juan Luis Munoz Marin Intl
Thu 4/30
7:40 am-3:48 pm
1 stop11h 08m
$416
SeattleAguadilla
SEA - BQN
SEABQN
Seattle/Tacoma Intl
Sat 5/2
7:25 am-11:09 pm
1 stop12h 44m
Aguadilla Borinquen
Tue 5/5
12:15 am-3:48 pm
2 stops18h 33m
$524
SeattleSan Juan
SEA - SJU
SEASJU
Seattle/Tacoma Intl
Fri 7/10
11:00 am-12:25 am
1 stop10h 25m
San Juan Luis Munoz Marin Intl
Fri 7/17
5:30 am-6:30 pm
1 stop16h 00m
$525
SeattleSan Juan
SEA - SJU
SEASJU
Seattle/Tacoma Intl
Wed 4/29
5:00 am-11:50 pm
2 stops15h 50m
San Juan Luis Munoz Marin Intl
Wed 5/6
7:20 am-7:00 pm
2 stops14h 40m
$525
Quickest round-trip
SeattleSan Juan
SEA - SJU
SEASJU
Seattle/Tacoma Intl
Sun 5/3
4:45 pm-9:10 am
2 stops13h 25m
San Juan Luis Munoz Marin Intl
Sat 5/9
1:10 pm-8:35 pm
1 stop10h 25m
$530
SeattleSan Juan
SEA - SJU
SEASJU
Seattle/Tacoma Intl
Mon 5/4
6:58 pm-1:45 pm
2 stops15h 47m
San Juan Luis Munoz Marin Intl
Wed 5/6
7:20 am-10:47 pm
2 stops18h 27m
$544
SeattleSan Juan
SEA - SJU
SEASJU
Seattle/Tacoma Intl
Wed 4/22
7:20 am-11:59 pm
1 stop13h 39m
San Juan Luis Munoz Marin Intl
Fri 5/1
7:15 am-7:59 pm
1 stop15h 44m
$545
SeattleSan Juan
SEA - SJU
SEASJU
Seattle/Tacoma Intl
Wed 4/8
7:00 am-8:34 pm
1 stop10h 34m
San Juan Luis Munoz Marin Intl
Tue 4/14
1:00 am-11:48 am
2 stops13h 48m
$548
SeattleSan Juan
SEA - SJU
SEASJU
Seattle/Tacoma Intl
Fri 8/21
10:30 pm-1:10 pm
1 stop11h 40m
San Juan Luis Munoz Marin Intl
Sun 8/30
5:30 am-2:40 pm
1 stop12h 10m
$554
SeattleSan Juan
SEA - SJU
SEASJU
Seattle/Tacoma Intl
Thu 7/9
5:30 am-9:30 pm
2 stops13h 00m
San Juan Luis Munoz Marin Intl
Sun 7/19
5:20 am-7:05 pm
1 stop16h 45m
$580
Showing 1-10 of 36 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, May is the cheapest month in which you can book a flight from Seattle to Puerto Rico (average of $329). Flying from Seattle to Puerto Rico in July is currently the most expensive (average of $417). 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.
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 March 16, 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.
Crew
8.6
Food
7.0
Comfort
8.0
Boarding
8.1
Entertainment
7.5
Overall
8.0
Reviews
1 / 20
10.0
ExcellentAnonymous,Mar 2026
KOA - HNL
Crew
8.6
Food
7.0
Comfort
8.0
Boarding
8.1
Entertainment
7.5
Overall
8.0
Reviews
1 / 20
10.0
ExcellentAnonymous,Mar 2026
KOA - HNL
Crew
8.6
Food
7.0
Comfort
8.0
Boarding
8.1
Entertainment
7.5
Overall
8.0
Reviews
1 / 20
10.0
ExcellentAnonymous,Mar 2026
KOA - HNL
Crew
8.6
Food
7.0
Comfort
8.0
Boarding
8.1
Entertainment
7.5
Overall
8.0
Reviews
1 / 20
10.0
ExcellentAnonymous,Mar 2026
KOA - HNL
Crew
8.6
Food
7.0
Comfort
8.0
Boarding
8.1
Entertainment
7.5
Overall
8.0
Reviews
1 / 20
10.0
ExcellentAnonymous,Mar 2026
KOA - HNL
Crew
8.6
Food
7.0
Comfort
8.0
Boarding
8.1
Entertainment
7.5
Overall
8.0
Reviews
1 / 20
10.0
ExcellentAnonymous,Mar 2026
KOA - HNL
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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Complete your trip
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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 March 16, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 9 airlines flying from Seattle to Puerto Rico
Discover the top 9 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 March 16, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$175 | Average$344 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$218 | Average$341 | FlexibilityNo cancel fee | On-time65% | |
| Cheapest$224 | Average$604 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$282 | Average$491 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$363 | Average$687 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$363 | Average$584 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$454 | Average$828 | FlexibilityNo cancel fee | On-time83% | |
| Cheapest$521 | Average$626 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$598 | Average$880 | FlexibilityNo cancel fee | On-time75% |