$160+ Cheap flights from Washington 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 14 — Sep 211
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
Find cheap flights from Washington 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 Washington to Puerto Rico
Cheapest
Best
Last-minute
One-way
Cheapest flights from Washington to Puerto RicoExplore the most affordable flight options available from Washington to Puerto Rico. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 15, 2026.
Explore the most affordable flight options available from Washington to Puerto Rico. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 15, 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 8/11. 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 10/236:09 pm -
2 stops14h 11m
Thu 10/296:00 am -
1 stop20h 39m
Deal found 8/11![American Airlines logo]()
$322
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 10/78:39 pm -
1 stop10h 07m
Wed 10/143:51 pm -
1 stop10h 19m
Deal found 8/12![American Airlines logo]()
$325
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 9/25:59 am -
2 stops15h 00m
Wed 9/97:00 am -
1 stop19h 28m
Deal found 8/10![American Airlines logo]()
$327
This Trip.com 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/135:35 pm -
2 stops16h 41m
Mon 10/196:31 pm -
2 stops25h 04m
Deal found 8/10![Frontier logo]()
$370
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.
Fri 9/1111:57 pm -
2 stops11h 53m
Sat 9/193:41 pm -
1 stop21h 21m
Deal found 8/10![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.
Sat 9/55:59 am -
1 stop13h 55m
Sat 9/122:22 pm -
1 stop12h 06m
Deal found 8/11![American Airlines logo]()
$404
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.
Sun 11/155:24 pm -
1 stop17h 36m
Wed 11/256:05 am -
2 stops12h 51m
Deal found 8/12![American Airlines logo]()
$407
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 10/1411:49 pm -
1 stop20h 31m
Mon 10/197:30 am -
1 stop18h 35m
Deal found 8/12![American Airlines logo]()
$409
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 10/188:39 pm -
1 stop10h 07m
Mon 10/262:27 pm -
1 stop11h 32m
Deal found 8/10![American Airlines logo]()
$412
This American Airlines deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/263:00 pm -
2 stops15h 24m
Sat 10/316:30 am -
2 stops13h 33m
Deal found 8/13![American Airlines logo]()
$414
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 10/219:42 pm -
1 stop10h 38m
Thu 10/293:51 pm -
1 stop10h 19m
Deal found 8/10![American Airlines logo]()
$417
Best flights from Washington to Puerto RicoDiscover carefully curated flight deals from Washington to Puerto Rico that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 15, 2026.
Discover carefully curated flight deals from Washington to Puerto Rico that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 15, 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.
Fri 10/166:09 pm -
2 stops14h 11m
Sat 10/246:30 am -
2 stops13h 33m
Deal found 8/11![American Airlines logo]()
$404
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/1210:50 pm -
1 stop10h 15m
Mon 11/162:05 pm -
1 stop12h 55m
Deal found 8/12![Delta logo]()
$476
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 8/11. 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 10/37:02 am -
2 stops13h 07m
Fri 10/1612:15 am -
2 stops14h 18m
Deal found 8/11![United Airlines logo]()
$496
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.
Fri 10/238:44 pm -
2 stops13h 05m
Thu 10/2912:55 pm -
2 stops14h 04m
Deal found 8/10![Delta logo]()
$486
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.
Fri 10/2310:55 pm -
2 stops13h 06m
Thu 10/2912:41 pm -
1 stop11h 03m
Deal found 8/10![American Airlines logo]()
$486
This Southwest deal was found by Cheapflights users on 8/13. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/2210:30 pm -
1 stop11h 20m
Mon 9/286:30 am -
2 stops14h 05m
Deal found 8/13![Southwest logo]()
$496
This United Airlines deal was found by Cheapflights users on 8/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/157:30 am -
1 stop13h 20m
Mon 9/282:00 pm -
1 stop11h 59m
Deal found 8/15![United Airlines logo]()
$514
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/97:33 pm -
2 stops14h 27m
Wed 11/187:15 am -
2 stops16h 52m
Deal found 8/12![Delta logo]()
$486
This Southwest deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/125:30 am -
2 stops13h 25m
Thu 11/197:40 am -
2 stops14h 55m
Deal found 8/14![Southwest logo]()
$504
This American Airlines deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/62:51 pm -
2 stops17h 40m
Sat 10/106:00 am -
1 stop17h 43m
Deal found 8/14![American Airlines logo]()
$548
This Southwest deal was found by Cheapflights users on 8/13. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/46:55 am -
2 stops11h 05m
Tue 2/912:15 pm -
2 stops14h 40m
Deal found 8/13![Southwest logo]()
$505
This United Airlines deal was found by Cheapflights users on 8/14. 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.
Sun 10/47:29 pm -
2 stops16h 15m
Mon 10/51:00 am -
1 stop11h 50m
Deal found 8/14![United Airlines logo]()
$591
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.
Sat 1/235:45 pm -
2 stops15h 20m
Sat 1/307:30 am -
2 stops16h 22m
Deal found 8/11![Delta logo]()
$538
This Southwest deal was found by Cheapflights users on 8/15. 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 9/116:05 am -
2 stops11h 00m
Sun 9/139:25 pm -
2 stops18h 25m
Deal found 8/15![Southwest logo]()
$521
This United Airlines deal was found by Cheapflights users on 8/13. 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.
Tue 9/295:00 am -
2 stops12h 38m
Sat 10/37:00 am -
1 stop10h 49m
Deal found 8/13![United Airlines logo]()
$604
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/155:10 am -
2 stops15h 39m
Mon 9/2112:56 pm -
2 stops13h 33m
Deal found 8/12![Delta logo]()
$556
This American Airlines deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/46:00 am -
1 stop14h 16m
Fri 2/196:50 am -
1 stop17h 52m
Deal found 8/13![American Airlines logo]()
$625
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/45:45 pm -
2 stops12h 35m
Sun 10/115:00 am -
2 stops12h 35m
Deal found 8/10![Southwest logo]()
$536
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/127:04 pm -
2 stops14h 11m
Mon 11/168:25 am -
2 stops16h 31m
Deal found 8/12![United Airlines logo]()
$604
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 1/95:45 pm -
2 stops19h 05m
Thu 1/147:00 am -
2 stops20h 38m
Deal found 8/12![Delta logo]()
$558
This United Airlines deal was found by Cheapflights users on 8/14. 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 12/28:00 am -
1 stop10h 22m
Tue 12/82:05 am -
3 stops22h 05m
Deal found 8/14![United Airlines logo]()
$604
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.
Fri 9/46:05 pm -
2 stops16h 37m
Sun 9/132:59 pm -
1 stop11h 59m
Deal found 8/10![Delta logo]()
$559
This Southwest deal was found by Cheapflights users on 8/13. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/47:00 am -
2 stops11h 00m
Fri 2/192:20 pm -
2 stops11h 55m
Deal found 8/13![Southwest logo]()
$616
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.
Tue 10/275:00 am -
2 stops12h 00m
Fri 10/301:21 pm -
1 stop10h 50m
Deal found 8/10![United Airlines logo]()
$628
This Delta deal was found by Cheapflights users on 8/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/117:10 am -
1 stop13h 39m
Wed 9/162:59 pm -
1 stop9h 48m
Deal found 8/15![Delta logo]()
$586
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 12/95:00 am -
2 stops13h 22m
Mon 12/142:25 pm -
1 stop10h 44m
Deal found 8/10![United Airlines logo]()
$629
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 8/186:00 am -
2 stops14h 52m
Sat 9/127:00 am -
2 stops16h 16m
Deal found 8/11![Delta logo]()
$601
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.
Sun 12/66:50 am -
1 stop13h 07m
Sat 1/161:09 am -
1 stop13h 50m
Deal found 8/10![United Airlines logo]()
$629
This United Airlines deal was found by Cheapflights users on 8/15. 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.
Thu 9/35:00 am -
2 stops15h 09m
Tue 9/812:15 am -
1 stop13h 48m
Deal found 8/15![United Airlines logo]()
$634
Last-minute flights from Washington to Puerto RicoDiscover last-minute flight deals from Washington to Puerto Rico. Data last updated August 15, 2026 and is based on user searches.
Discover last-minute flight deals from Washington to Puerto Rico. Data last updated August 15, 2026 and is based on user searches.
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 9/25:59 am -
2 stops15h 00m
Wed 9/97:00 am -
1 stop19h 28m
Deal found 8/10![American Airlines logo]()
$327
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 9/26:25 am -
1 stop14h 34m
Tue 9/86:00 am -
1 stop21h 20m
Deal found 8/11![American Airlines logo]()
$407
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 9/55:59 am -
1 stop13h 55m
Sat 9/122:22 pm -
1 stop12h 06m
Deal found 8/11![American Airlines logo]()
$404
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.
Sat 9/59:58 pm -
1 stop12h 26m
Sat 9/123:41 pm -
1 stop21h 21m
Deal found 8/12![American Airlines logo]()
$432
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.
Tue 9/83:00 pm -
2 stops17h 00m
Tue 9/152:22 pm -
1 stop12h 06m
Deal found 8/11![American Airlines logo]()
$429
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 9/910:45 pm -
1 stop11h 47m
Wed 9/162:22 pm -
1 stop11h 35m
Deal found 8/12![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.
Fri 9/1111:57 pm -
2 stops11h 53m
Sat 9/193:41 pm -
1 stop21h 21m
Deal found 8/10![American Airlines logo]()
$402
This American Airlines deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/1810:45 pm -
1 stop11h 47m
Sat 10/36:00 am -
2 stops13h 42m
Deal found 8/13![American Airlines logo]()
$417
This American Airlines deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/2310:45 pm -
1 stop11h 47m
Sat 10/33:35 pm -
1 stop20h 48m
Deal found 8/13![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 9/2511:57 pm -
2 stops11h 53m
Wed 9/306:00 am -
2 stops16h 48m
Deal found 8/11![American Airlines logo]()
$320
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 9/263:00 pm -
2 stops15h 24m
Sat 10/317:30 am -
1 stop17h 23m
Deal found 8/11![American Airlines logo]()
$322
One-way flights from Washington to Puerto RicoSearch for one-way flight options from Washington to Puerto Rico. Find affordable one-way fares based on user searches. Data last updated August 15, 2026.
Search for one-way flight options from Washington to Puerto Rico. Find affordable one-way fares based on user searches. Data last updated August 15, 2026.
This American Airlines deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 1/1911:59 pm -
1 stop17h 40m
Deal found 8/13![American Airlines logo]()
$160
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.
Mon 9/2811:06 pm -
1 stop12h 44m
Deal found 8/12![American Airlines logo]()
$161
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.
Sat 9/195:34 pm -
1 stop18h 55m
Deal found 8/12![American Airlines logo]()
$163
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 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 Trip.com deal was found by Cheapflights users on 8/13. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1712:38 pm -
2 stops22h 40m
Deal found 8/13![Frontier logo]()
$187
This Trip.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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/316:17 pm -
2 stops13h 49m
Deal found 8/11![Frontier logo]()
$188
This Faresmojo deal was found by Cheapflights users on 8/14. 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 Faresmojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/1411:15 pm -
1 stop10h 45m
Deal found 8/14![JetBlue logo]()
$198
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.
Sat 8/2912:20 pm -
2 stops19h 46m
Deal found 8/11![Frontier logo]()
$199
This Kiwi.com deal was found by Cheapflights users on 8/14. 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.
Sun 9/1311:02 am -
2 stops20h 11m
Deal found 8/14![Frontier logo]()
$205
This Faresmojo deal was found by Cheapflights users on 8/14. 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 Faresmojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/1910:40 pm -
1 stop10h 23m
Deal found 8/14![JetBlue logo]()
$206
This Kiwi.com deal was found by Cheapflights users on 8/13. 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.
Thu 9/174:27 pm -
2 stops38h 08m
Deal found 8/13![Frontier logo]()
$210
Find flight deals from Washington to Puerto Rico
Keep the following information in mind while searching for Washington to Puerto Rico flight deals. Data was last updated August 15, 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 Washington 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 15, 2026.
Use the filters below to find and compare flights from Washington to Puerto Rico that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
PortlandSan Juan
PDX Portland - SJU San Juan Luis Munoz Marin Intl
PDXSJU
Portland
Fri 10/16
6:09 pm-11:20 am
2 stops14h 11m
San Juan Luis Munoz Marin Intl
Sat 10/24
6:30 am-5:03 pm
2 stops13h 33m
$404
SeattleSan Juan
SEA Seattle/Tacoma Intl - SJU San Juan Luis Munoz Marin Intl
SEASJU
Seattle/Tacoma Intl
Thu 11/12
10:50 pm-1:05 pm
1 stop10h 15m
San Juan Luis Munoz Marin Intl
Mon 11/16
2:05 pm-11:00 pm
1 stop12h 55m
$476
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
PortlandSan Juan
PDX Portland - SJU San Juan Luis Munoz Marin Intl
PDXSJU
Portland
Fri 10/23
8:44 pm-12:49 pm
2 stops13h 05m
San Juan Luis Munoz Marin Intl
Thu 10/29
12:55 pm-11:59 pm
2 stops14h 04m
$486
PortlandSan Juan
PDX Portland - SJU San Juan Luis Munoz Marin Intl
PDXSJU
Portland
Fri 10/23
10:55 pm-3:01 pm
2 stops13h 06m
San Juan Luis Munoz Marin Intl
Thu 10/29
12:41 pm-8:44 pm
1 stop11h 03m
$486
PortlandSan Juan
PDX Portland - SJU San Juan Luis Munoz Marin Intl
PDXSJU
Portland
Mon 11/9
7:33 pm-2:00 pm
2 stops14h 27m
San Juan Luis Munoz Marin Intl
Wed 11/18
7:15 am-8:07 pm
2 stops16h 52m
$486
PortlandAguadilla
PDX Portland - BQN Aguadilla Borinquen
PDXBQN
Portland
Sat 10/3
7:02 am-11:09 pm
2 stops13h 07m
Aguadilla Borinquen
Fri 10/16
12:15 am-11:33 am
2 stops14h 18m
$496
SeattleSan Juan
SEA Seattle/Tacoma Intl - SJU San Juan Luis Munoz Marin Intl
SEASJU
Seattle/Tacoma Intl
Tue 9/22
10:30 pm-12:50 pm
1 stop11h 20m
San Juan Luis Munoz Marin Intl
Mon 9/28
6:30 am-5:35 pm
2 stops14h 05m
$496
SeattleSan Juan
SEA Seattle/Tacoma Intl - SJU San Juan Luis Munoz Marin Intl
SEASJU
Seattle/Tacoma Intl
Thu 11/12
5:30 am-10:55 pm
2 stops13h 25m
San Juan Luis Munoz Marin Intl
Thu 11/19
7:40 am-6:35 pm
2 stops14h 55m
$504
SeattleSan Juan
SEA Seattle/Tacoma Intl - SJU San Juan Luis Munoz Marin Intl
SEASJU
Seattle/Tacoma Intl
Thu 2/4
6:55 am-10:00 pm
2 stops11h 05m
San Juan Luis Munoz Marin Intl
Tue 2/9
12:15 pm-10:55 pm
2 stops14h 40m
$505
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Washington to Puerto Rico
Have a flexible travel schedule? Discover the best time to fly to Puerto Rico from Washington with our price prediction graph.
SEA-SJU
PDX-SJU
PDX-BQN
GEG-SJU
PSC-SJU
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 Washington to Puerto Rico
USWA-PR0
SEA-SJU
PDX-SJU
PDX-BQN
GEG-SJU
What is the cheapest month to book a flight from State of Washington to Puerto Rico?
Currently, October is the cheapest month in which you can book a flight from State of Washington to Puerto Rico (average of $484). Flying from State of Washington to Puerto Rico in December is currently the most expensive (average of $787). 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 State of Washington to Puerto Rico?
The price you pay for your flight from State of Washington to Puerto Rico may vary depending on when you book. For the best chance of a lower fare, look to book 89 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
Related info for your journey
Find useful and relevant information for your journey from Washington to Puerto Rico. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Alternative routes
Complete your trip
Flights by cabin class
Other flight options
Popular flights
Return Flight Options
Top destinations
Alternative routes for Washington 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 Washington to Puerto Rico by cabin class
Find flights from Washington to Puerto Rico, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Washington and Puerto Rico flights
Browse other Washington and Puerto Rico flight options. Last updated on August 15, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Find a return flight route from Puerto Rico
Find the right flight back to Washington after your stay in Puerto Rico
Washington to Puerto Rico flights
Consider these flights traveling from Washington to Puerto Rico.
Top 8 airlines flying from Washington to Puerto Rico
Discover the top 8 airlines that operate flights from Washington 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 15, 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$328 | Average$605 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$363 | Average$752 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$373 | Average$705 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$434 | Average$578 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$454 | Average$828 | FlexibilityNo cancel fee | On-time83% | |
| Cheapest$587 | Average$626 | FlexibilityNo cancel fee | On-time75% |