$145+ 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 4/20. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — SJU
Apr 22 — Apr 291
Round-trip
1 adult, Economy
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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
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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 March 23, 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 March 23, 2026.
This Delta deal was found by Cheapflights users on 3/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/267:38 pm
GEG
- SJU
2 stops13h 34m
Delta
Fri 5/17:15 am
SJU
- GEG
2 stops20h 05m
Delta
Deal found 3/18![Delta logo]()
$444
This Southwest deal was found by Cheapflights users on 3/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/286:30 am
PDX
- SJU
2 stops13h 10m
Southwest
Tue 5/125:05 am
SJU
- PDX
2 stops18h 55m
Southwest
Deal found 3/18![Southwest logo]()
$444
This Southwest deal was found by Cheapflights users on 3/20. Clicking the “Pick Dates” 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 8/1310:45 pm
PDX
- SJU
1 stop12h 45m
Southwest
Thu 8/205:30 am
SJU
- PDX
1 stop12h 30m
Southwest
Deal found 3/20![Southwest logo]()
$446
This United Airlines deal was found by Cheapflights users on 3/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/156:50 am
SEA
- BQN
1 stop13h 07m
United Airlines
Sat 11/211:09 am
BQN
- SEA
1 stop13h 50m
United Airlines
Deal found 3/18![United Airlines logo]()
$454
This Southwest deal was found by Cheapflights users on 3/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/2510:30 pm
SEA
- SJU
1 stop11h 20m
Southwest
Tue 9/11:45 pm
SJU
- SEA
2 stops12h 50m
Southwest
Deal found 3/20![Southwest logo]()
$454
This American Airlines deal was found by Cheapflights users on 3/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/256:19 pm
SEA
- SJU
2 stops11h 54m
American Airlines
Sat 5/26:45 am
SJU
- SEA
1 stop19h 02m
American Airlines
Deal found 3/18![American Airlines logo]()
$455
This eDestinos deal was found by Cheapflights users on 3/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/291:34 pm
SEA
- SJU
2 stops49h 25m
Multiple Airlines
Thu 5/146:09 pm
SJU
- SEA
3 stops42h 40m
Multiple Airlines
Deal found 3/20![Multiple Airlines logo]()
$456
This Southwest deal was found by Cheapflights users on 3/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/69:45 am
PDX
- SJU
2 stops10h 55m
Southwest
Tue 5/1211:25 am
SJU
- PDX
2 stops13h 35m
Southwest
Deal found 3/18![Southwest logo]()
$456
This American Airlines deal was found by Cheapflights users on 3/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/296:00 am
SEA
- SJU
1 stop11h 51m
American Airlines
Wed 5/611:59 pm
SJU
- SEA
1 stop12h 36m
American Airlines
Deal found 3/20![American Airlines logo]()
$460
This American Airlines deal was found by Cheapflights users on 3/20. Clicking the “Pick Dates” 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 4/256:00 am
GEG
- SJU
1 stop19h 32m
American Airlines
Thu 4/306:45 am
SJU
- GEG
1 stop16h 48m
American Airlines
Deal found 3/20![American Airlines logo]()
$466
This American Airlines deal was found by Cheapflights users on 3/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/296:00 am
SEA
- SJU
1 stop11h 51m
American Airlines
Thu 5/146:00 am
SJU
- SEA
1 stop18h 23m
American Airlines
Deal found 3/18![American Airlines logo]()
$469
This Delta deal was found by Cheapflights users on 3/20. Clicking the “Pick Dates” 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 5/111:14 pm
SEA
- SJU
1 stop10h 38m
Delta
Thu 5/72:35 pm
SJU
- SEA
2 stops12h 37m
Delta
Deal found 3/20![Delta logo]()
$474
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 March 23, 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 March 23, 2026.
This Southwest deal was found by Cheapflights users on 3/20. Clicking the “Pick Dates” 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 8/1310:45 pm
PDX
- SJU
1 stop12h 45m
Southwest
Thu 8/2011:35 am
SJU
- PDX
2 stops12h 35m
Southwest
Deal found 3/20![Southwest logo]()
$446
This American Airlines deal was found by Cheapflights users on 3/21. Clicking the “Pick Dates” 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 4/253:15 pm
GEG
- SJU
2 stops14h 58m
American Airlines
Thu 4/306:45 am
SJU
- GEG
1 stop16h 48m
American Airlines
Deal found 3/21![American Airlines logo]()
$466
This Delta deal was found by Cheapflights users on 3/20. Clicking the “Pick Dates” 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 6/112:35 pm
SJU
- SEA
1 stop10h 30m
Delta
Deal found 3/20![Delta logo]()
$474
This United Airlines deal was found by Cheapflights users on 3/20. Clicking the “Pick Dates” 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 5/45:00 am
GEG
- SJU
1 stop9h 38m
United Airlines
Sat 5/97:40 am
SJU
- GEG
2 stops16h 36m
United Airlines
Deal found 3/20![United Airlines logo]()
$522
This Southwest deal was found by Cheapflights users on 3/19. Clicking the “Pick Dates” 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 8/2810:45 pm
PDX
- SJU
2 stops12h 15m
Southwest
Wed 9/95:15 am
SJU
- PDX
2 stops12h 45m
Southwest
Deal found 3/19![Southwest logo]()
$446
This Delta deal was found by Cheapflights users on 3/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/216:00 am
GEG
- SJU
2 stops14h 12m
Delta
Tue 4/2812:55 pm
SJU
- GEG
1 stop11h 36m
Delta
Deal found 3/18![Delta logo]()
$493
This Southwest deal was found by Cheapflights users on 3/20. Clicking the “Pick Dates” 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 9/410:30 pm
SEA
- SJU
2 stops12h 30m
Southwest
Fri 9/115:30 am
SJU
- SEA
1 stop12h 30m
Southwest
Deal found 3/20![Southwest logo]()
$474
This Trip.com deal was found by Cheapflights users on 3/22. Clicking the “Pick Dates” 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 4/217:10 am
PDX
- BQN
1 stop15h 33m
Multiple Airlines
Mon 4/272:38 am
BQN
- PDX
1 stop20h 39m
Multiple Airlines
Deal found 3/22![Multiple Airlines logo]()
$1,050
This United Airlines deal was found by Cheapflights users on 3/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/410:53 pm
SEA
- SJU
1 stop12h 51m
United Airlines
Tue 5/51:00 am
SJU
- SEA
2 stops14h 25m
United Airlines
Deal found 3/18![United Airlines logo]()
$559
This Delta deal was found by Cheapflights users on 3/19. Clicking the “Pick Dates” 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 6/25:51 pm
PDX
- SJU
2 stops16h 29m
Delta
Thu 6/112:35 pm
SJU
- PDX
2 stops12h 18m
Delta
Deal found 3/19![Delta logo]()
$510
This Alaska Airlines deal was found by Cheapflights users on 3/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/255:00 am
GEG
- SJU
2 stops15h 02m
Alaska Airlines
Thu 4/306:45 am
SJU
- GEG
3 stops19h 10m
Alaska Airlines
Deal found 3/21![Alaska Airlines logo]()
$1,137
This Southwest deal was found by Cheapflights users on 3/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/95:55 am
PDX
- SJU
2 stops12h 35m
Southwest
Mon 7/135:30 am
SJU
- PDX
1 stop13h 50m
Southwest
Deal found 3/17![Southwest logo]()
$478
This United Airlines deal was found by Cheapflights users on 3/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/17:05 pm
SEA
- SJU
2 stops14h 29m
United Airlines
Tue 5/57:20 am
SJU
- SEA
2 stops18h 27m
United Airlines
Deal found 3/19![United Airlines logo]()
$564
This Southwest deal was found by Cheapflights users on 3/21. Clicking the “Pick Dates” 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 8/2610:45 pm
PDX
- SJU
1 stop12h 45m
Southwest
Mon 8/315:30 am
SJU
- PDX
1 stop12h 30m
Southwest
Deal found 3/21![Southwest logo]()
$478
This Delta deal was found by Cheapflights users on 3/21. Clicking the “Pick Dates” 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 6/127:15 am
SEA
- SJU
1 stop13h 28m
Delta
Fri 6/197:05 am
SJU
- SEA
1 stop16h 14m
Delta
Deal found 3/21![Delta logo]()
$555
This United Airlines deal was found by Cheapflights users on 3/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/278:00 am
SEA
- SJU
1 stop10h 24m
United Airlines
Thu 4/301:00 am
SJU
- SEA
1 stop12h 37m
United Airlines
Deal found 3/22![United Airlines logo]()
$564
This Southwest deal was found by Cheapflights users on 3/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/811:55 pm
PDX
- SJU
1 stop10h 25m
Southwest
Fri 5/156:50 am
SJU
- PDX
2 stops16h 20m
Southwest
Deal found 3/17![Southwest logo]()
$480
This United Airlines deal was found by Cheapflights users on 3/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/216:30 am
SEA
- BQN
2 stops13h 39m
United Airlines
Mon 4/2712:15 am
BQN
- SEA
2 stops18h 49m
United Airlines
Deal found 3/22![United Airlines logo]()
$567
This Delta deal was found by Cheapflights users on 3/21. Clicking the “Pick Dates” 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 9/810:05 pm
PDX
- SJU
1 stop15h 26m
Delta
Thu 9/1712:58 pm
SJU
- PDX
1 stop12h 13m
Delta
Deal found 3/21![Delta logo]()
$573
This Southwest deal was found by Cheapflights users on 3/22. Clicking the “Pick Dates” 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 8/1711:05 pm
SEA
- SJU
2 stops11h 30m
Southwest
Mon 8/245:30 am
SJU
- SEA
1 stop12h 30m
Southwest
Deal found 3/22![Southwest logo]()
$494
This United Airlines deal was found by Cheapflights users on 3/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/285:05 am
GEG
- SJU
2 stops15h 45m
United Airlines
Sat 5/97:40 am
SJU
- GEG
2 stops16h 36m
United Airlines
Deal found 3/18![United Airlines logo]()
$573
This Southwest deal was found by Cheapflights users on 3/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/146:00 am
SEA
- SJU
2 stops12h 05m
Southwest
Tue 4/218:10 am
SJU
- SEA
2 stops11h 45m
Southwest
Deal found 3/21![Southwest logo]()
$520
This United Airlines deal was found by Cheapflights users on 3/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/277:14 pm
PDX
- SJU
2 stops16h 30m
United Airlines
Fri 5/13:56 pm
SJU
- PDX
1 stop11h 03m
United Airlines
Deal found 3/17![United Airlines logo]()
$583
This American Airlines deal was found by Cheapflights users on 3/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/25:06 am
PSC
- SJU
2 stops14h 52m
American Airlines
Mon 4/66:00 am
SJU
- PSC
2 stops16h 58m
American Airlines
Deal found 3/18![American Airlines logo]()
$976
This Southwest deal was found by Cheapflights users on 3/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/36:00 am
GEG
- SJU
2 stops12h 30m
Southwest
Fri 8/76:30 am
SJU
- GEG
2 stops13h 25m
Southwest
Deal found 3/18![Southwest logo]()
$522
This United Airlines deal was found by Cheapflights users on 3/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/277:00 am
SEA
- BQN
2 stops13h 09m
United Airlines
Mon 5/412:15 am
BQN
- SEA
2 stops14h 24m
United Airlines
Deal found 3/22![United Airlines logo]()
$610
This Southwest deal was found by Cheapflights users on 3/20. Clicking the “Pick Dates” 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 8/136:30 am
GEG
- SJU
2 stops14h 20m
Southwest
Thu 8/206:30 am
SJU
- GEG
2 stops13h 25m
Southwest
Deal found 3/20![Southwest logo]()
$522
This American Airlines deal was found by Cheapflights users on 3/22. Clicking the “Pick Dates” 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 3/261:56 pm
PSC
- SJU
2 stops17h 44m
American Airlines
Mon 3/306:33 am
SJU
- PSC
2 stops16h 25m
American Airlines
Deal found 3/22![American Airlines logo]()
$1,116
This United Airlines deal was found by Cheapflights users on 3/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/298:05 am
PDX
- SJU
1 stop10h 19m
United Airlines
Wed 5/61:40 pm
SJU
- PDX
1 stop12h 14m
United Airlines
Deal found 3/17![United Airlines logo]()
$638
This Southwest deal was found by Cheapflights users on 3/21. Clicking the “Pick Dates” 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 6/199:30 am
SEA
- SJU
2 stops11h 35m
Southwest
Wed 6/245:00 am
SJU
- SEA
1 stop11h 20m
Southwest
Deal found 3/21![Southwest logo]()
$580
Last-minute flights from Washington to Puerto RicoDiscover last-minute flight deals from Washington to Puerto Rico. Data last updated March 23, 2026 and is based on user searches.
Discover last-minute flight deals from Washington to Puerto Rico. Data last updated March 23, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 3/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/1710:56 pm
PDX
- SJU
1 stop12h 48m
United Airlines
Fri 4/243:56 pm
SJU
- PDX
1 stop11h 03m
United Airlines
Deal found 3/18![United Airlines logo]()
$476
This United Airlines deal was found by Cheapflights users on 3/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/215:00 am
SEA
- SJU
2 stops12h 38m
United Airlines
Mon 4/271:00 am
SJU
- SEA
1 stop13h 02m
United Airlines
Deal found 3/22![United Airlines logo]()
$474
This Kiwi.com deal was found by Cheapflights users on 3/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/246:20 pm
SEA
- SJU
1 stop15h 33m
Multiple Airlines
Mon 4/272:09 am
SJU
- SEA
2 stops34h 18m
Multiple Airlines
Deal found 3/19![Multiple Airlines logo]()
$489
This American Airlines deal was found by Cheapflights users on 3/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/256:19 pm
SEA
- SJU
2 stops11h 54m
American Airlines
Sat 5/26:45 am
SJU
- SEA
1 stop19h 02m
American Airlines
Deal found 3/18![American Airlines logo]()
$455
This American Airlines deal was found by Cheapflights users on 3/20. Clicking the “Pick Dates” 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 4/256:00 am
GEG
- SJU
1 stop19h 32m
American Airlines
Thu 4/306:45 am
SJU
- GEG
1 stop16h 48m
American Airlines
Deal found 3/20![American Airlines logo]()
$466
This Delta deal was found by Cheapflights users on 3/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/267:38 pm
GEG
- SJU
2 stops13h 34m
Delta
Thu 5/76:15 am
SJU
- GEG
2 stops20h 20m
Delta
Deal found 3/18![Delta logo]()
$444
This American Airlines deal was found by Cheapflights users on 3/22. Clicking the “Pick Dates” 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 4/276:00 am
GEG
- SJU
1 stop14h 02m
American Airlines
Mon 5/411:59 pm
SJU
- GEG
2 stops17h 20m
American Airlines
Deal found 3/22![American Airlines logo]()
$488
This Southwest deal was found by Cheapflights users on 3/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/285:40 am
PDX
- SJU
2 stops12h 25m
Southwest
Wed 5/68:10 am
SJU
- PDX
2 stops13h 20m
Southwest
Deal found 3/17![Southwest logo]()
$444
This American Airlines deal was found by Cheapflights users on 3/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/281:22 pm
GEG
- SJU
2 stops18h 26m
American Airlines
Tue 5/57:00 pm
SJU
- GEG
2 stops22h 19m
American Airlines
Deal found 3/18![American Airlines logo]()
$483
This eDestinos deal was found by Cheapflights users on 3/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/291:34 pm
SEA
- SJU
2 stops49h 25m
Multiple Airlines
Thu 5/146:09 pm
SJU
- SEA
3 stops42h 40m
Multiple Airlines
Deal found 3/20![Multiple Airlines logo]()
$456
This American Airlines deal was found by Cheapflights users on 3/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/296:00 am
SEA
- SJU
1 stop11h 51m
American Airlines
Wed 5/611:59 pm
SJU
- SEA
1 stop12h 36m
American Airlines
Deal found 3/20![American Airlines logo]()
$460
This American Airlines deal was found by Cheapflights users on 3/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/296:00 am
SEA
- SJU
1 stop11h 51m
American Airlines
Thu 5/146:00 am
SJU
- SEA
1 stop18h 23m
American Airlines
Deal found 3/18![American Airlines logo]()
$469
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 March 23, 2026.
Search for one-way flight options from Washington to Puerto Rico. Find affordable one-way fares based on user searches. Data last updated March 23, 2026.
This Kiwi.com deal was found by Cheapflights users on 3/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/2010:57 am
SEA
- SJU
2 stops19h 57m
Frontier
Deal found 3/21![Frontier logo]()
$145
This Kiwi.com deal was found by Cheapflights users on 3/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/177:12 pm
SEA
- SJU
2 stops38h 38m
Frontier
Deal found 3/18![Frontier logo]()
$162
This Kiwi.com deal was found by Cheapflights users on 3/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/197:12 pm
SEA
- SJU
2 stops43h 47m
Frontier
Deal found 3/20![Frontier logo]()
$167
This Kiwi.com deal was found by Cheapflights users on 3/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/217:12 pm
SEA
- SJU
2 stops50h 17m
Frontier
Deal found 3/18![Frontier logo]()
$168
This Kiwi.com deal was found by Cheapflights users on 3/22. Clicking the “Pick Dates” 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 5/177:50 pm
SEA
- SJU
2 stops39h 11m
Frontier
Deal found 3/22![Frontier logo]()
$178
This Kiwi.com deal was found by Cheapflights users on 3/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/17:12 pm
SEA
- SJU
2 stops36h 27m
Frontier
Deal found 3/18![Frontier logo]()
$180
This Kiwi.com deal was found by Cheapflights users on 3/20. Clicking the “Pick Dates” 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 4/237:12 pm
SEA
- SJU
2 stops50h 17m
Frontier
Deal found 3/20![Frontier logo]()
$184
This Kiwi.com deal was found by Cheapflights users on 3/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/1012:42 pm
SEA
- SJU
2 stops29h 07m
Frontier
Deal found 3/21![Frontier logo]()
$189
This Kiwi.com deal was found by Cheapflights users on 3/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/27:12 pm
SEA
- SJU
3 stops51h 19m
Multiple Airlines
Deal found 3/18![Multiple Airlines logo]()
$190
This Kiwi.com deal was found by Cheapflights users on 3/20. Clicking the “Pick Dates” 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 4/227:12 pm
SEA
- SJU
2 stops43h 55m
Frontier
Deal found 3/20![Frontier logo]()
$194
This Kiwi.com deal was found by Cheapflights users on 3/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/2711:48 am
PDX
- SJU
2 stops35h 13m
Frontier
Deal found 3/18![Frontier logo]()
$202
This Delta deal was found by Cheapflights users on 3/19. Clicking the “Pick Dates” 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 5/197:23 pm
GEG
- SJU
2 stops14h 57m
Delta
Deal found 3/19![Delta logo]()
$222
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 March 23, 2026.
Round-trip from | $444 (Delta) |
|---|---|
One-way from | $145 (Kiwi.com) |
Popular in | December |
Cheapest in | October |
Average price | $597 |
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 March 23, 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 - SJU
PDXSJU
Portland
Thu 8/13
10:45 pm-2:30 pm
1 stop12h 45m
San Juan Luis Munoz Marin Intl
Thu 8/20
11:35 am-9:10 pm
2 stops12h 35m
$446
PortlandSan Juan
PDX - SJU
PDXSJU
Portland
Fri 8/28
10:45 pm-2:00 pm
2 stops12h 15m
San Juan Luis Munoz Marin Intl
Wed 9/9
5:15 am-3:00 pm
2 stops12h 45m
$446
SpokaneSan Juan
GEG - SJU
GEGSJU
Spokane
Sat 4/25
3:15 pm-9:13 am
2 stops14h 58m
San Juan Luis Munoz Marin Intl
Thu 4/30
6:45 am-8:33 pm
1 stop16h 48m
$466
SeattleSan Juan
SEA - SJU
SEASJU
Seattle/Tacoma Intl
Mon 6/1
10:35 pm-4:29 pm
1 stop14h 54m
San Juan Luis Munoz Marin Intl
Thu 6/11
2:35 pm-10:05 pm
1 stop10h 30m
$474
SeattleSan Juan
SEA - SJU
SEASJU
Seattle/Tacoma Intl
Fri 9/4
10:30 pm-2:00 pm
2 stops12h 30m
San Juan Luis Munoz Marin Intl
Fri 9/11
5:30 am-3:00 pm
1 stop12h 30m
$474
PortlandSan Juan
PDX - SJU
PDXSJU
Portland
Thu 7/9
5:55 am-9:30 pm
2 stops12h 35m
San Juan Luis Munoz Marin Intl
Mon 7/13
5:30 am-4:20 pm
1 stop13h 50m
$478
PortlandSan Juan
PDX - SJU
PDXSJU
Portland
Wed 8/26
10:45 pm-2:30 pm
1 stop12h 45m
San Juan Luis Munoz Marin Intl
Mon 8/31
5:30 am-3:00 pm
1 stop12h 30m
$478
PortlandSan Juan
PDX - SJU
PDXSJU
Portland
Fri 5/8
11:55 pm-1:20 pm
1 stop10h 25m
San Juan Luis Munoz Marin Intl
Fri 5/15
6:50 am-8:10 pm
2 stops16h 20m
$480
SpokaneSan Juan
GEG - SJU
GEGSJU
Spokane
Tue 4/21
6:00 am-11:12 pm
2 stops14h 12m
San Juan Luis Munoz Marin Intl
Tue 4/28
12:55 pm-9:31 pm
1 stop11h 36m
$493
SeattleSan Juan
SEA - SJU
SEASJU
Seattle/Tacoma Intl
Mon 8/17
11:05 pm-1:35 pm
2 stops11h 30m
San Juan Luis Munoz Marin Intl
Mon 8/24
5:30 am-3:00 pm
1 stop12h 30m
$494
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.
GEG-SJU
PDX-SJU
SEA-SJU
SEA-BQN
PDX-BQN
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
GEG-SJU
PDX-SJU
SEA-SJU
SEA-BQN
What is the cheapest month to book a flight from State of Washington to Puerto Rico?
Currently, May is the cheapest month in which you can book a flight from State of Washington to Puerto Rico (average of $329). Flying from State of Washington to Puerto Rico in July is currently the most expensive (average of $417). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
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 March 23, 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 9 airlines flying from Washington to Puerto Rico
Discover the top 9 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 March 23, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$175 | Average$344 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$224 | Average$602 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$258 | Average$349 | FlexibilityNo cancel fee | On-time65% | |
| Cheapest$327 | Average$491 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$363 | Average$730 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$363 | Average$597 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$434 | Average$632 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$454 | Average$828 | FlexibilityNo cancel fee | On-time83% | |
| Cheapest$587 | Average$804 | FlexibilityNo cancel fee | On-time75% |