$160+ 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 1/25. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — SJU
Sep 11 — Sep 181
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
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
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 August 12, 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 August 12, 2026.
This American Airlines deal was found by Cheapflights users on 8/11. 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.
Sat 10/311:57 pm -
2 stops12h 10m
Sat 10/173:51 pm -
1 stop10h 19m
Deal found 8/11![American Airlines logo]()
$320
This American Airlines deal was found by Cheapflights users on 8/10. 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 9/95:02 pm -
2 stops13h 22m
Sun 9/1310:16 am -
1 stop16h 36m
Deal found 8/10![American Airlines logo]()
$325
This American Airlines deal was found by Cheapflights users on 8/11. 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.
Fri 9/1810:36 pm -
1 stop13h 14m
Sat 10/33:35 pm -
1 stop20h 48m
Deal found 8/11![American Airlines logo]()
$402
This American Airlines deal was found by Cheapflights users on 8/11. 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.
Wed 9/95:02 pm -
2 stops13h 22m
Wed 9/1611:51 am -
2 stops13h 49m
Deal found 8/11![American Airlines logo]()
$407
This American Airlines deal was found by Cheapflights users on 8/10. 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 10/186:20 pm -
2 stops12h 26m
Sat 10/316:00 am -
1 stop11h 46m
Deal found 8/10![American Airlines logo]()
$412
This American Airlines deal was found by Cheapflights users on 8/10. 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 10/217:30 am -
2 stops11h 39m
Sat 10/316:00 am -
1 stop11h 46m
Deal found 8/10![American Airlines logo]()
$417
This American Airlines deal was found by Cheapflights users on 8/11. 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.
Wed 10/148:39 pm -
1 stop10h 07m
Sun 10/252:54 pm -
1 stop12h 42m
Deal found 8/11![American Airlines logo]()
$420
This American Airlines deal was found by Cheapflights users on 8/11. 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.
Tue 9/88:21 pm -
1 stop16h 19m
Tue 9/1511:51 am -
2 stops13h 01m
Deal found 8/11![American Airlines logo]()
$427
This American Airlines deal was found by Cheapflights users on 8/11. 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.
Thu 9/1010:45 pm -
1 stop11h 47m
Tue 9/1511:51 am -
2 stops15h 20m
Deal found 8/11![American Airlines logo]()
$442
This American Airlines deal was found by Cheapflights users on 8/11. 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.
Wed 12/25:10 am -
2 stops12h 28m
Wed 12/97:30 am -
2 stops13h 24m
Deal found 8/11![American Airlines logo]()
$447
This American Airlines deal was found by Cheapflights users on 8/10. 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 9/75:10 am -
1 stop15h 49m
Mon 9/142:58 pm -
1 stop11h 54m
Deal found 8/10![American Airlines logo]()
$467
This Delta deal was found by Cheapflights users on 8/10. 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 11/56:00 am -
1 stop13h 18m
Mon 11/97:00 am -
2 stops17h 46m
Deal found 8/10![Delta logo]()
$476
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 August 12, 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 August 12, 2026.
This Delta deal was found by Cheapflights users on 8/8. 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 11/76:00 am -
2 stops14h 44m
Sat 11/147:15 am -
2 stops13h 45m
Deal found 8/8![Delta logo]()
$484
This Southwest deal was found by Cheapflights users on 8/11. 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.
Sat 10/36:30 am -
2 stops14h 20m
Mon 10/56:30 am -
2 stops14h 40m
Deal found 8/11![Southwest logo]()
$485
This United Airlines deal was found by Cheapflights users on 8/9. 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 9/115:00 am -
2 stops15h 09m
Mon 9/1412:15 am -
2 stops18h 24m
Deal found 8/9![United Airlines logo]()
$494
This Delta deal was found by Cheapflights users on 8/9. 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 11/117:15 am -
1 stop12h 40m
Wed 11/187:00 am -
2 stops17h 46m
Deal found 8/9![Delta logo]()
$484
This United deal was found by Cheapflights users on 8/9. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/1710:58 pm -
2 stops15h 23m
Fri 8/211:06 pm -
3 stops34h 37m
Deal found 8/9![Multiple Airlines logo]()
$1,045
This Southwest deal was found by Cheapflights users on 8/7. 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 12/16:30 am -
2 stops11h 20m
Tue 12/810:45 am -
2 stops15h 30m
Deal found 8/7![Southwest logo]()
$529
This Delta deal was found by Cheapflights users on 8/9. 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 12/211:15 pm -
1 stop10h 45m
Wed 12/97:15 am -
2 stops17h 31m
Deal found 8/9![Delta logo]()
$484
This United Airlines deal was found by Cheapflights users on 8/7. 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 12/28:00 am -
1 stop10h 22m
Tue 12/82:05 am -
3 stops22h 05m
Deal found 8/7![United Airlines logo]()
$584
This Southwest deal was found by Cheapflights users on 8/7. 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 12/26:30 am -
2 stops11h 20m
Wed 12/912:30 pm -
2 stops15h 00m
Deal found 8/7![Southwest logo]()
$545
This United Airlines deal was found by Cheapflights users on 8/6. 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 11/35:05 am -
2 stops14h 52m
Wed 11/41:09 am -
2 stops18h 23m
Deal found 8/6![United Airlines logo]()
$594
This Southwest deal was found by Cheapflights users on 8/11. 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 9/105:15 am -
2 stops14h 00m
Thu 9/175:00 am -
2 stops13h 00m
Deal found 8/11![Southwest logo]()
$550
This United Airlines deal was found by Cheapflights users on 8/11. 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.
Mon 10/2610:56 pm -
1 stop12h 44m
Tue 10/271:05 am -
1 stop13h 11m
Deal found 8/11![United Airlines logo]()
$599
This United Airlines deal was found by Cheapflights users on 8/8. 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 9/15:00 am -
2 stops15h 09m
Mon 9/712:15 am -
2 stops18h 24m
Deal found 8/8![United Airlines logo]()
$608
This Delta deal was found by Cheapflights users on 8/7. 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 11/2711:15 pm -
1 stop10h 45m
Sat 12/57:15 am -
2 stops13h 45m
Deal found 8/7![Delta logo]()
$684
This United Airlines deal was found by Cheapflights users on 8/10. 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 9/25:00 am -
2 stops15h 09m
Tue 9/812:15 am -
1 stop13h 48m
Deal found 8/10![United Airlines logo]()
$646
This United Airlines deal was found by Cheapflights users on 8/11. 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.
Sun 10/257:00 am -
1 stop10h 00m
Sun 11/18:25 am -
1 stop11h 07m
Deal found 8/11![United Airlines logo]()
$659
This United Airlines deal was found by Cheapflights users on 8/10. 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 9/187:30 am -
1 stop12h 39m
Sun 9/2012:15 am -
1 stop13h 48m
Deal found 8/10![United Airlines logo]()
$714
This United Airlines deal was found by Cheapflights users on 8/10. 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 9/2511:13 pm -
2 stops15h 08m
Sun 9/2710:48 am -
2 stops15h 11m
Deal found 8/10![United Airlines logo]()
$1,961
Last-minute flights from Seattle to Puerto RicoDiscover last-minute flight deals from Seattle to Puerto Rico. Data last updated August 12, 2026 and is based on user searches.
Discover last-minute flight deals from Seattle to Puerto Rico. Data last updated August 12, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 8/11. 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.
Tue 9/15:45 am -
2 stops13h 44m
Mon 10/52:59 pm -
2 stops11h 56m
Deal found 8/11![Delta logo]()
$476
This United Airlines deal was found by Cheapflights users on 8/8. 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 9/15:00 am -
2 stops15h 09m
Mon 9/712:15 am -
2 stops18h 24m
Deal found 8/8![United Airlines logo]()
$608
This United Airlines deal was found by Cheapflights users on 8/10. 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 9/25:00 am -
2 stops15h 09m
Tue 9/812:15 am -
1 stop13h 48m
Deal found 8/10![United Airlines logo]()
$646
This American Airlines deal was found by Cheapflights users on 8/10. 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 9/75:10 am -
1 stop15h 49m
Mon 9/142:58 pm -
1 stop11h 54m
Deal found 8/10![American Airlines logo]()
$467
This American Airlines deal was found by Cheapflights users on 8/11. 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.
Tue 9/88:21 pm -
1 stop16h 19m
Tue 9/1511:51 am -
2 stops13h 01m
Deal found 8/11![American Airlines logo]()
$427
This American Airlines deal was found by Cheapflights users on 8/10. 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 9/95:02 pm -
2 stops13h 22m
Wed 9/162:22 pm -
1 stop11h 35m
Deal found 8/10![American Airlines logo]()
$325
This American Airlines deal was found by Cheapflights users on 8/11. 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.
Thu 9/1010:45 pm -
1 stop11h 47m
Tue 9/152:22 pm -
1 stop11h 35m
Deal found 8/11![American Airlines logo]()
$442
This United Airlines deal was found by Cheapflights users on 8/9. 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 9/115:00 am -
2 stops15h 09m
Mon 9/1412:15 am -
2 stops18h 24m
Deal found 8/9![United Airlines logo]()
$494
This American Airlines deal was found by Cheapflights users on 8/11. 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.
Fri 9/1810:36 pm -
1 stop13h 14m
Sat 10/33:35 pm -
1 stop20h 48m
Deal found 8/11![American Airlines logo]()
$402
This American Airlines deal was found by Cheapflights users on 8/12. 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 9/235:30 am -
2 stops12h 17m
Sat 10/33:35 pm -
1 stop20h 48m
Deal found 8/12![American Airlines logo]()
$412
This American Airlines deal was found by Cheapflights users on 8/11. 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.
Fri 9/2510:45 pm -
1 stop11h 47m
Wed 9/302:22 pm -
1 stop11h 35m
Deal found 8/11![American Airlines logo]()
$320
This Delta deal was found by Cheapflights users on 8/8. 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 9/2510:40 pm -
1 stop10h 23m
Wed 9/307:30 am -
1 stop15h 51m
Deal found 8/8![Delta logo]()
$484
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 August 12, 2026.
Search for one-way flight options from Seattle to Puerto Rico. Find affordable one-way fares based on user searches. Data last updated August 12, 2026.
This American Airlines deal was found by Cheapflights users on 8/10. 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 1/256:12 am -
1 stop13h 44m
Deal found 8/10![American Airlines logo]()
$160
This American Airlines deal was found by Cheapflights users on 8/11. 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.
Sat 9/195:34 pm -
1 stop18h 55m
Deal found 8/11![American Airlines logo]()
$164
This American Airlines deal was found by Cheapflights users on 8/11. 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.
Wed 11/117:30 am -
1 stop12h 46m
Deal found 8/11![American Airlines logo]()
$165
This American Airlines deal was found by Cheapflights users on 8/11. 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.
Mon 1/1812:32 am -
2 stops12h 29m
Deal found 8/11![American Airlines logo]()
$185
This Kiwi.com deal was found by Cheapflights users on 8/11. 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 11/117:41 pm -
2 stops18h 56m
Deal found 8/11![Frontier logo]()
$186
This Kiwi.com deal was found by Cheapflights users on 8/7. 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 9/17:07 pm -
2 stops26h 49m
Deal found 8/7![Frontier logo]()
$195
This Kiwi.com deal was found by Cheapflights users on 8/8. 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 9/244:27 pm -
2 stops45h 23m
Deal found 8/8![Frontier logo]()
$202
This American Airlines deal was found by Cheapflights users on 8/10. 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 1/235:47 pm -
1 stop18h 26m
Deal found 8/10![American Airlines logo]()
$206
This Kiwi.com deal was found by Cheapflights users on 8/9. 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 9/114:27 pm -
2 stops38h 51m
Deal found 8/9![Frontier logo]()
$207
This Kiwi.com deal was found by Cheapflights users on 8/9. 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 9/154:27 pm -
2 stops54h 46m
Deal found 8/9![Frontier logo]()
$208
This American Airlines deal was found by Cheapflights users on 8/10. 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 1/277:00 am -
1 stop9h 50m
Deal found 8/10![American Airlines logo]()
$211
This Kiwi.com deal was found by Cheapflights users on 8/11. 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.
Tue 8/187:06 pm -
2 stops28h 04m
Deal found 8/11![Frontier logo]()
$365
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 August 12, 2026.
Round-trip from | $320 (American Airlines) |
|---|---|
One-way from | $160 (American Airlines) |
Popular in | December |
Cheapest in | October |
Average price | $556 |
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 August 12, 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 Seattle/Tacoma Intl - SJU San Juan Luis Munoz Marin Intl
SEASJU
Seattle/Tacoma Intl
Sat 11/7
6:00 am-12:44 am
2 stops14h 44m
San Juan Luis Munoz Marin Intl
Sat 11/14
7:15 am-5:00 pm
2 stops13h 45m
$484
SeattleSan Juan
SEA Seattle/Tacoma Intl - SJU San Juan Luis Munoz Marin Intl
SEASJU
Seattle/Tacoma Intl
Wed 11/11
7:15 am-11:55 pm
1 stop12h 40m
San Juan Luis Munoz Marin Intl
Wed 11/18
7:00 am-8:46 pm
2 stops17h 46m
$484
SeattleSan Juan
SEA Seattle/Tacoma Intl - SJU San Juan Luis Munoz Marin Intl
SEASJU
Seattle/Tacoma Intl
Wed 12/2
11:15 pm-2:00 pm
1 stop10h 45m
San Juan Luis Munoz Marin Intl
Wed 12/9
7:15 am-8:46 pm
2 stops17h 31m
$484
SeattleSan Juan
SEA Seattle/Tacoma Intl - SJU San Juan Luis Munoz Marin Intl
SEASJU
Seattle/Tacoma Intl
Sat 10/3
6:30 am-11:50 pm
2 stops14h 20m
San Juan Luis Munoz Marin Intl
Mon 10/5
6:30 am-6:10 pm
2 stops14h 40m
$485
SeattleAguadilla
SEA Seattle/Tacoma Intl - BQN Aguadilla Borinquen
SEABQN
Seattle/Tacoma Intl
Fri 9/11
5:00 am-11:09 pm
2 stops15h 09m
Aguadilla Borinquen
Mon 9/14
12:15 am-3:39 pm
2 stops18h 24m
$494
SeattleSan Juan
SEA Seattle/Tacoma Intl - SJU San Juan Luis Munoz Marin Intl
SEASJU
Seattle/Tacoma Intl
Tue 12/1
6:30 am-9:50 pm
2 stops11h 20m
San Juan Luis Munoz Marin Intl
Tue 12/8
10:45 am-10:15 pm
2 stops15h 30m
$529
SeattleSan Juan
SEA Seattle/Tacoma Intl - SJU San Juan Luis Munoz Marin Intl
SEASJU
Seattle/Tacoma Intl
Wed 12/2
6:30 am-9:50 pm
2 stops11h 20m
San Juan Luis Munoz Marin Intl
Wed 12/9
12:30 pm-11:30 pm
2 stops15h 00m
$545
SeattleSan Juan
SEA Seattle/Tacoma Intl - SJU San Juan Luis Munoz Marin Intl
SEASJU
Seattle/Tacoma Intl
Thu 9/10
5:15 am-10:15 pm
2 stops14h 00m
San Juan Luis Munoz Marin Intl
Thu 9/17
5:00 am-3:00 pm
2 stops13h 00m
$550
SeattleSan Juan
SEA Seattle/Tacoma Intl - SJU San Juan Luis Munoz Marin Intl
SEASJU
Seattle/Tacoma Intl
Wed 12/2
8:00 am-10:22 pm
1 stop10h 22m
San Juan Luis Munoz Marin Intl
Tue 12/8
2:05 am-8:10 pm
3 stops22h 05m
$584
SeattleAguadilla
SEA Seattle/Tacoma Intl - BQN Aguadilla Borinquen
SEABQN
Seattle/Tacoma Intl
Tue 11/3
5:05 am-11:57 pm
2 stops14h 52m
Aguadilla Borinquen
Wed 11/4
1:09 am-3:32 pm
2 stops18h 23m
$594
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, October is the cheapest month in which you can book a flight from Seattle to Puerto Rico (average of $456). Flying from Seattle to Puerto Rico in December is currently the most expensive (average of $789). 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 August 12, 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
Overall
8.0
Comfort
8.0
Food
7.0
Boarding
8.1
Entertainment
7.5
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Crew
8.6
Overall
8.0
Comfort
8.0
Food
7.0
Boarding
8.1
Entertainment
7.5
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Crew
8.6
Overall
8.0
Comfort
8.0
Food
7.0
Boarding
8.1
Entertainment
7.5
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Crew
8.6
Overall
8.0
Comfort
8.0
Food
7.0
Boarding
8.1
Entertainment
7.5
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Crew
8.6
Overall
8.0
Comfort
8.0
Food
7.0
Boarding
8.1
Entertainment
7.5
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Crew
8.6
Overall
8.0
Comfort
8.0
Food
7.0
Boarding
8.1
Entertainment
7.5
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
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 August 12, 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 August 12, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$175 | Average$344 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$327 | Average$410 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$342 | Average$615 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$363 | Average$651 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$364 | Average$594 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$454 | Average$810 | FlexibilityNo cancel fee | On-time83% | |
| Cheapest$454 | Average$586 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$587 | Average$626 | FlexibilityNo cancel fee | On-time75% |