$193+ 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 5/30. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — SJU
Jun 2 — Jun 91
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 May 3, 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 May 3, 2026.
This Southwest deal was found by Cheapflights users on 4/30. 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 9/36:15 am
SEA
- SJU
2 stops13h 00m
Southwest
Thu 9/1011:35 am
SJU
- SEA
2 stops12h 10m
Southwest
Deal found 4/30![Southwest logo]()
$474
This American Airlines deal was found by Cheapflights users on 5/2. 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 5/186:19 pm
SEA
- SJU
2 stops11h 54m
American Airlines
Fri 5/296:20 am
SJU
- SEA
1 stop18h 15m
American Airlines
Deal found 5/2![American Airlines logo]()
$475
This American Airlines deal was found by Cheapflights users on 4/30. 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 11/810:07 pm
SEA
- SJU
1 stop19h 25m
American Airlines
Tue 11/106:44 am
SJU
- SEA
1 stop16h 31m
American Airlines
Deal found 4/30![American Airlines logo]()
$489
This Southwest deal was found by Cheapflights users on 4/30. 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.
Wed 9/26:40 am
SEA
- SJU
2 stops11h 25m
Southwest
Mon 9/76:00 am
SJU
- SEA
2 stops11h 55m
Southwest
Deal found 4/30![Southwest logo]()
$490
This Delta deal was found by Cheapflights users on 5/1. 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 6/110:35 pm
SEA
- SJU
1 stop14h 54m
Delta
Thu 6/111:10 pm
SJU
- SEA
2 stops13h 49m
Delta
Deal found 5/1![Delta logo]()
$494
This American Airlines deal was found by Cheapflights users on 4/30. 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 12/28:15 am
SEA
- SJU
1 stop17h 04m
American Airlines
Wed 12/92:50 pm
SJU
- SEA
2 stops12h 11m
American Airlines
Deal found 4/30![American Airlines logo]()
$499
This American Airlines deal was found by Cheapflights users on 4/29. 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 6/15:15 am
SEA
- SJU
1 stop14h 30m
American Airlines
Mon 6/812:57 am
SJU
- SEA
1 stop11h 30m
American Airlines
Deal found 4/29![American Airlines logo]()
$503
This Southwest deal was found by Cheapflights users on 4/30. 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 7/285:00 am
SEA
- SJU
2 stops11h 45m
Southwest
Thu 8/135:30 am
SJU
- SEA
1 stop12h 30m
Southwest
Deal found 4/30![Southwest logo]()
$510
This American Airlines deal was found by Cheapflights users on 4/30. 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 9/35:31 pm
SEA
- SJU
1 stop18h 23m
American Airlines
Sat 9/123:42 pm
SJU
- SEA
1 stop20h 46m
American Airlines
Deal found 4/30![American Airlines logo]()
$519
This United Airlines deal was found by Cheapflights users on 4/30. 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 11/811:59 pm
SEA
- SJU
1 stop12h 37m
United Airlines
Mon 11/164:52 pm
SJU
- SEA
1 stop11h 22m
United Airlines
Deal found 4/30![United Airlines logo]()
$522
This American Airlines deal was found by Cheapflights users on 4/30. 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 9/26:00 am
SEA
- SJU
1 stop14h 07m
American Airlines
Tue 9/87:05 am
SJU
- SEA
1 stop17h 54m
American Airlines
Deal found 4/30![American Airlines logo]()
$524
This Southwest deal was found by Cheapflights users on 5/1. 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 8/1410:30 pm
SEA
- SJU
1 stop11h 40m
Southwest
Sat 8/2211:45 am
SJU
- SEA
2 stops14h 10m
Southwest
Deal found 5/1![Southwest logo]()
$530
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 May 3, 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 May 3, 2026.
This Southwest deal was found by Cheapflights users on 4/29. 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 5/315:35 am
SEA
- SJU
2 stops15h 00m
Southwest
Tue 6/910:00 am
SJU
- SEA
2 stops13h 25m
Southwest
Deal found 4/29![Southwest logo]()
$616
This United Airlines deal was found by Cheapflights users on 4/28. 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 5/277:00 am
SEA
- SJU
1 stop10h 34m
United Airlines
Fri 6/51:00 am
SJU
- SEA
2 stops16h 38m
United Airlines
Deal found 4/28![United Airlines logo]()
$652
This American Airlines deal was found by Cheapflights users on 5/2. 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 6/225:10 am
SEA
- SJU
1 stop15h 29m
American Airlines
Tue 6/307:16 pm
SJU
- SEA
1 stop19h 44m
American Airlines
Deal found 5/2![American Airlines logo]()
$676
This Delta deal was found by Cheapflights users on 5/1. 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.
Thu 6/256:00 am
SEA
- SJU
1 stop11h 43m
Delta
Sat 7/44:21 pm
SJU
- SEA
1 stop10h 38m
Delta
Deal found 5/1![Delta logo]()
$690
This Southwest deal was found by Cheapflights users on 4/29. 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 6/235:00 am
SEA
- SJU
2 stops11h 45m
Southwest
Sun 6/285:20 am
SJU
- SEA
1 stop16h 45m
Southwest
Deal found 4/29![Southwest logo]()
$636
This Expedia deal was found by Cheapflights users on 4/29. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/1411:30 am
SEA
- CPX
2 stops17h 35m
Multiple Airlines
Mon 5/184:33 pm
CPX
- SEA
2 stops20h 44m
Multiple Airlines
Deal found 4/29![Multiple Airlines logo]()
$1,277
This Delta deal was found by Cheapflights users on 4/29. 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 6/16:00 am
SEA
- SJU
2 stops14h 35m
Delta
Tue 6/166:00 am
SJU
- SEA
2 stops15h 36m
Delta
Deal found 4/29![Delta logo]()
$695
This Southwest deal was found by Cheapflights users on 4/29. 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 6/119:00 am
SEA
- SJU
2 stops12h 05m
Southwest
Mon 6/226:30 am
SJU
- SEA
1 stop13h 55m
Southwest
Deal found 4/29![Southwest logo]()
$636
This United Airlines deal was found by Cheapflights users on 5/2. 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 5/2610:40 pm
SEA
- SJU
2 stops19h 44m
United Airlines
Tue 6/21:00 am
SJU
- SEA
2 stops18h 09m
United Airlines
Deal found 5/2![United Airlines logo]()
$734
This Southwest deal was found by Cheapflights users on 4/28. 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 6/129:00 am
SEA
- SJU
2 stops12h 05m
Southwest
Fri 6/195:30 am
SJU
- SEA
1 stop16h 00m
Southwest
Deal found 4/28![Southwest logo]()
$666
This Delta deal was found by Cheapflights users on 4/30. 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 5/295:45 pm
SEA
- SJU
2 stops15h 15m
Delta
Fri 6/51:16 pm
SJU
- SEA
2 stops13h 54m
Delta
Deal found 4/30![Delta logo]()
$791
This Southwest deal was found by Cheapflights users on 5/2. 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.
Mon 6/16:15 pm
SEA
- SJU
2 stops13h 20m
Southwest
Mon 6/86:30 am
SJU
- SEA
1 stop13h 55m
Southwest
Deal found 5/2![Southwest logo]()
$666
This United Airlines deal was found by Cheapflights users on 5/1. 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 5/1611:00 pm
SEA
- BQN
1 stop21h 09m
United Airlines
Tue 5/1912:15 am
BQN
- SEA
2 stops25h 26m
United Airlines
Deal found 5/1![United Airlines logo]()
$911
This United Airlines deal was found by Cheapflights users on 5/1. 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 7/197:30 am
SEA
- BQN
1 stop12h 39m
United Airlines
Thu 7/3012:15 am
BQN
- SEA
2 stops14h 23m
United Airlines
Deal found 5/1![United Airlines logo]()
$932
This United Airlines deal was found by Cheapflights users on 5/2. 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 6/183:30 pm
SEA
- BQN
1 stop28h 39m
United Airlines
Sun 6/2812:15 am
BQN
- SEA
2 stops18h 54m
United Airlines
Deal found 5/2![United Airlines logo]()
$1,053
This United Airlines deal was found by Cheapflights users on 4/29. 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 5/147:25 am
SEA
- BQN
1 stop12h 44m
United Airlines
Sun 5/1712:15 am
BQN
- SEA
1 stop13h 22m
United Airlines
Deal found 4/29![United Airlines logo]()
$1,132
This United Airlines deal was found by Cheapflights users on 4/29. 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 5/1411:00 pm
SEA
- CPX
2 stops14h 13m
United Airlines
Mon 5/1810:30 am
CPX
- SEA
3 stops17h 42m
United Airlines
Deal found 4/29![United Airlines logo]()
$1,756
Last-minute flights from Seattle to Puerto RicoDiscover last-minute flight deals from Seattle to Puerto Rico. Data last updated May 3, 2026 and is based on user searches.
Discover last-minute flight deals from Seattle to Puerto Rico. Data last updated May 3, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 4/29. 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 5/47:25 am
SEA
- BQN
1 stop12h 44m
United Airlines
Thu 5/712:15 am
BQN
- SEA
1 stop13h 22m
United Airlines
Deal found 4/29![United Airlines logo]()
$835
This United Airlines deal was found by Cheapflights users on 4/28. 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 5/138:10 am
SEA
- SJU
1 stop10h 14m
United Airlines
Wed 5/201:40 pm
SJU
- SEA
1 stop12h 19m
United Airlines
Deal found 4/28![United Airlines logo]()
$581
This American Airlines deal was found by Cheapflights users on 5/1. 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.
Sat 5/166:00 am
SEA
- SJU
1 stop11h 55m
American Airlines
Sun 5/241:47 pm
SJU
- SEA
1 stop12h 11m
American Airlines
Deal found 5/1![American Airlines logo]()
$543
This American Airlines deal was found by Cheapflights users on 5/2. 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 5/186:19 pm
SEA
- SJU
2 stops11h 54m
American Airlines
Fri 5/296:20 am
SJU
- SEA
1 stop18h 15m
American Airlines
Deal found 5/2![American Airlines logo]()
$475
This Southwest deal was found by Cheapflights users on 4/30. 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 5/266:00 am
SEA
- SJU
2 stops12h 05m
Southwest
Wed 6/311:25 am
SJU
- SEA
2 stops15h 10m
Southwest
Deal found 4/30![Southwest logo]()
$566
This United Airlines deal was found by Cheapflights users on 5/1. 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 5/2611:00 pm
SEA
- SJU
1 stop11h 45m
United Airlines
Tue 6/21:00 am
SJU
- SEA
2 stops16h 30m
United Airlines
Deal found 5/1![United Airlines logo]()
$584
This American Airlines deal was found by Cheapflights users on 4/30. 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 5/278:10 am
SEA
- SJU
1 stop11h 51m
American Airlines
Sat 6/66:21 am
SJU
- SEA
1 stop18h 14m
American Airlines
Deal found 4/30![American Airlines logo]()
$499
This American Airlines deal was found by Cheapflights users on 5/2. 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 5/275:15 am
SEA
- SJU
1 stop14h 30m
American Airlines
Sun 5/3112:59 am
SJU
- SEA
1 stop11h 28m
American Airlines
Deal found 5/2![American Airlines logo]()
$567
This American Airlines deal was found by Cheapflights users on 5/2. 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 5/288:45 pm
SEA
- SJU
1 stop16h 03m
American Airlines
Sat 6/612:44 am
SJU
- SEA
1 stop11h 49m
American Airlines
Deal found 5/2![American Airlines logo]()
$562
This American Airlines deal was found by Cheapflights users on 4/30. 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 5/296:00 am
SEA
- SJU
1 stop14h 59m
American Airlines
Fri 6/51:47 pm
SJU
- SEA
1 stop12h 11m
American Airlines
Deal found 4/30![American Airlines logo]()
$494
This Delta deal was found by Cheapflights users on 4/28. 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 5/2911:05 pm
SEA
- SJU
1 stop11h 15m
Delta
Tue 6/22:35 pm
SJU
- SEA
2 stops12h 35m
Delta
Deal found 4/28![Delta logo]()
$546
This Southwest deal was found by Cheapflights users on 4/29. 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 5/315:35 am
SEA
- SJU
2 stops15h 00m
Southwest
Tue 6/95:00 am
SJU
- SEA
1 stop11h 20m
Southwest
Deal found 4/29![Southwest logo]()
$586
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 May 3, 2026.
Search for one-way flight options from Seattle to Puerto Rico. Find affordable one-way fares based on user searches. Data last updated May 3, 2026.
This Kiwi.com deal was found by Cheapflights users on 4/28. 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 5/307:50 pm
SEA
- SJU
2 stops41h 00m
Frontier
Deal found 4/28![Frontier logo]()
$193
This Kiwi.com deal was found by Cheapflights users on 5/2. 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 6/97:41 pm
SEA
- SJU
2 stops27h 28m
Frontier
Deal found 5/2![Frontier logo]()
$196
This Cheapflightsfares deal was found by Cheapflights users on 4/28. 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.
Sat 5/3011:39 pm
SEA
- SJU
1 stop10h 37m
JetBlue
Deal found 4/28![JetBlue logo]()
$223
This Kiwi.com deal was found by Cheapflights users on 4/28. 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 6/237:41 pm
SEA
- SJU
2 stops33h 14m
Frontier
Deal found 4/28![Frontier logo]()
$227
This Delta deal was found by Cheapflights users on 4/28. 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 5/166:00 am
SEA
- SJU
2 stops14h 35m
Delta
Deal found 4/28![Delta logo]()
$228
This Kiwi.com deal was found by Cheapflights users on 4/30. 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 5/187:50 pm
SEA
- SJU
2 stops17h 53m
Frontier
Deal found 4/30![Frontier logo]()
$233
This Kiwi.com deal was found by Cheapflights users on 4/30. 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 6/293:33 pm
SEA
- SJU
2 stops22h 01m
Frontier
Deal found 4/30![Frontier logo]()
$240
This Kiwi.com deal was found by Cheapflights users on 4/28. 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 6/247:41 pm
SEA
- SJU
2 stops27h 28m
Frontier
Deal found 4/28![Frontier logo]()
$243
This Kiwi.com deal was found by Cheapflights users on 4/30. 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 6/163:33 pm
SEA
- SJU
2 stops29h 42m
Frontier
Deal found 4/30![Frontier logo]()
$246
This Delta deal was found by Cheapflights users on 4/28. 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 6/17:15 am
SEA
- SJU
1 stop13h 20m
Delta
Deal found 4/28![Delta logo]()
$247
This Kiwi.com deal was found by Cheapflights users on 4/29. 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 5/117:50 pm
SEA
- SJU
2 stops42h 36m
Frontier
Deal found 4/29![Frontier logo]()
$248
This Kiwi.com deal was found by Cheapflights users on 4/30. 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 5/2611:21 am
SEA
- BQN
2 stops35h 41m
Frontier
Deal found 4/30![Frontier logo]()
$313
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 May 3, 2026.
Round-trip from | $474 (Southwest) |
|---|---|
One-way from | $193 (Kiwi.com) |
Popular in | December |
Cheapest in | October |
Average price | $526 |
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 May 3, 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
Sun 5/31
5:35 am-11:35 pm
2 stops15h 00m
San Juan Luis Munoz Marin Intl
Tue 6/9
10:00 am-8:25 pm
2 stops13h 25m
$616
SeattleSan Juan
SEA - SJU
SEASJU
Seattle/Tacoma Intl
Tue 6/23
5:00 am-7:45 pm
2 stops11h 45m
San Juan Luis Munoz Marin Intl
Sun 6/28
5:20 am-7:05 pm
1 stop16h 45m
$636
SeattleSan Juan
SEA - SJU
SEASJU
Seattle/Tacoma Intl
Thu 6/11
9:00 am-12:05 am
2 stops12h 05m
San Juan Luis Munoz Marin Intl
Mon 6/22
6:30 am-5:25 pm
1 stop13h 55m
$636
SeattleSan Juan
SEA - SJU
SEASJU
Seattle/Tacoma Intl
Wed 5/27
7:00 am-8:34 pm
1 stop10h 34m
San Juan Luis Munoz Marin Intl
Fri 6/5
1:00 am-2:38 pm
2 stops16h 38m
$652
SeattleSan Juan
SEA - SJU
SEASJU
Seattle/Tacoma Intl
Fri 6/12
9:00 am-12:05 am
2 stops12h 05m
San Juan Luis Munoz Marin Intl
Fri 6/19
5:30 am-6:30 pm
1 stop16h 00m
$666
SeattleSan Juan
SEA - SJU
SEASJU
Seattle/Tacoma Intl
Mon 6/1
6:15 pm-10:35 am
2 stops13h 20m
San Juan Luis Munoz Marin Intl
Mon 6/8
6:30 am-5:25 pm
1 stop13h 55m
$666
SeattleSan Juan
SEA - SJU
SEASJU
Seattle/Tacoma Intl
Mon 6/22
5:10 am-11:39 pm
1 stop15h 29m
San Juan Luis Munoz Marin Intl
Tue 6/30
7:16 pm-12:00 pm
1 stop19h 44m
$676
Quickest round-trip
SeattleSan Juan
SEA - SJU
SEASJU
Seattle/Tacoma Intl
Thu 6/25
6:00 am-8:43 pm
1 stop11h 43m
San Juan Luis Munoz Marin Intl
Sat 7/4
4:21 pm-11:59 pm
1 stop10h 38m
$690
SeattleSan Juan
SEA - SJU
SEASJU
Seattle/Tacoma Intl
Mon 6/1
6:00 am-11:35 pm
2 stops14h 35m
San Juan Luis Munoz Marin Intl
Tue 6/16
6:00 am-6:36 pm
2 stops15h 36m
$695
SeattleSan Juan
SEA - SJU
SEASJU
Seattle/Tacoma Intl
Tue 5/26
10:40 pm-9:24 pm
2 stops19h 44m
San Juan Luis Munoz Marin Intl
Tue 6/2
1:00 am-4:09 pm
2 stops18h 09m
$734
Showing 1-10 of 27 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
How far ahead should I book a flight from Seattle to Puerto Rico?
Booking 89 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.
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 January is currently the most expensive (average of $363). 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 May 3, 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.
Food
7.0
Overall
8.0
Entertainment
7.5
Crew
8.6
Boarding
8.1
Comfort
8.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Food
7.0
Overall
8.0
Entertainment
7.5
Crew
8.6
Boarding
8.1
Comfort
8.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Food
7.0
Overall
8.0
Entertainment
7.5
Crew
8.6
Boarding
8.1
Comfort
8.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Food
7.0
Overall
8.0
Entertainment
7.5
Crew
8.6
Boarding
8.1
Comfort
8.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Food
7.0
Overall
8.0
Entertainment
7.5
Crew
8.6
Boarding
8.1
Comfort
8.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Food
7.0
Overall
8.0
Entertainment
7.5
Crew
8.6
Boarding
8.1
Comfort
8.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
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
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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 May 3, 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 May 3, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$175 | Average$344 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$282 | Average$462 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$342 | Average$632 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$363 | Average$704 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$364 | Average$581 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$454 | Average$828 | FlexibilityNo cancel fee | On-time83% | |
| Cheapest$496 | Average$610 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$587 | Average$727 | FlexibilityNo cancel fee | On-time75% |