$196+ 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 6/9. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — SJU
Jun 3 — Jun 101
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 May 4, 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 May 4, 2026.
This Southwest deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/136:05 am
PDX
- SJU
2 stops13h 10m
Southwest
Thu 8/2010:00 am
SJU
- PDX
2 stops13h 45m
Southwest
Deal found 4/29![Southwest logo]()
$466
This Southwest deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/36:15 am
SEA
- SJU
2 stops13h 00m
Southwest
Thu 9/1011:35 am
SJU
- SEA
2 stops12h 10m
Southwest
Deal found 4/30![Southwest logo]()
$474
This American Airlines deal was found by Cheapflights users on 5/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/1810:29 pm
SEA
- SJU
1 stop13h 51m
American Airlines
Fri 5/291:47 pm
SJU
- SEA
1 stop12h 11m
American Airlines
Deal found 5/4![American Airlines logo]()
$475
This American Airlines deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/810:07 pm
SEA
- SJU
1 stop19h 25m
American Airlines
Tue 11/106:44 am
SJU
- SEA
1 stop16h 31m
American Airlines
Deal found 4/30![American Airlines logo]()
$489
This Southwest deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/26:40 am
SEA
- SJU
2 stops11h 25m
Southwest
Mon 9/76:00 am
SJU
- SEA
2 stops11h 55m
Southwest
Deal found 4/30![Southwest logo]()
$490
This American Airlines deal was found by Cheapflights users on 5/4. Clicking the “Pick Dates” 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 8/183:47 pm
SEA
- SJU
1 stop20h 07m
American Airlines
Mon 8/2412:59 am
SJU
- SEA
1 stop16h 33m
American Airlines
Deal found 5/4![American Airlines logo]()
$494
This American Airlines deal was found by Cheapflights users on 5/3. Clicking the “Pick Dates” 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 10/1811:53 pm
SEA
- SJU
1 stop11h 47m
American Airlines
Fri 10/232:00 pm
SJU
- SEA
1 stop12h 25m
American Airlines
Deal found 5/3![American Airlines logo]()
$496
This Southwest deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/1510:45 pm
PDX
- SJU
1 stop11h 15m
Southwest
Sun 8/239:25 pm
SJU
- PDX
2 stops17h 15m
Southwest
Deal found 5/1![Southwest logo]()
$498
This American Airlines deal was found by Cheapflights users on 5/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/28:15 am
SEA
- SJU
1 stop17h 04m
American Airlines
Wed 12/92:50 pm
SJU
- SEA
1 stop12h 26m
American Airlines
Deal found 5/4![American Airlines logo]()
$499
This American Airlines deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/15:15 am
SEA
- SJU
1 stop14h 30m
American Airlines
Mon 6/812:57 am
SJU
- SEA
1 stop11h 30m
American Airlines
Deal found 4/29![American Airlines logo]()
$503
This Southwest deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/285:00 am
SEA
- SJU
2 stops11h 45m
Southwest
Thu 8/1310:00 am
SJU
- SEA
2 stops13h 45m
Southwest
Deal found 4/30![Southwest logo]()
$510
This Southwest deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/86:20 am
PDX
- SJU
2 stops11h 55m
Southwest
Wed 12/1612:35 pm
SJU
- PDX
2 stops13h 35m
Southwest
Deal found 5/1![Southwest logo]()
$516
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 May 4, 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 May 4, 2026.
This Southwest deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/237:40 am
PDX
- SJU
2 stops13h 50m
Southwest
Sat 8/295:05 am
SJU
- PDX
2 stops11h 55m
Southwest
Deal found 4/29![Southwest logo]()
$466
This United Airlines deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/611:59 pm
SEA
- SJU
1 stop12h 43m
United Airlines
Tue 10/132:00 pm
SJU
- SEA
1 stop11h 56m
United Airlines
Deal found 4/30![United Airlines logo]()
$494
This American Airlines deal was found by Cheapflights users on 5/4. Clicking the “Pick Dates” 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 8/3111:59 pm
SEA
- SJU
1 stop20h 08m
American Airlines
Sun 9/612:59 am
SJU
- SEA
1 stop11h 18m
American Airlines
Deal found 5/4![American Airlines logo]()
$519
This Delta deal was found by Cheapflights users on 5/3. Clicking the “Pick Dates” 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 10/175:45 pm
PDX
- SJU
2 stops14h 51m
Delta
Sat 10/247:30 am
SJU
- PDX
2 stops14h 13m
Delta
Deal found 5/3![Delta logo]()
$530
This Alaska Airlines deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/301:23 pm
GEG
- SJU
2 stops21h 22m
Alaska Airlines
Sat 11/76:44 am
SJU
- GEG
3 stops19h 15m
Alaska Airlines
Deal found 4/29![Alaska Airlines logo]()
$882
This Southwest deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/3010:45 pm
PDX
- SJU
1 stop12h 45m
Southwest
Sat 9/55:05 am
SJU
- PDX
2 stops11h 55m
Southwest
Deal found 5/1![Southwest logo]()
$466
This United Airlines deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/511:50 pm
SEA
- SJU
1 stop11h 54m
United Airlines
Tue 10/132:00 pm
SJU
- SEA
1 stop11h 56m
United Airlines
Deal found 4/30![United Airlines logo]()
$494
This Southwest deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/136:05 am
PDX
- SJU
2 stops13h 10m
Southwest
Thu 8/2010:00 am
SJU
- PDX
2 stops13h 45m
Southwest
Deal found 4/29![Southwest logo]()
$466
This Delta deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/3010:45 pm
GEG
- SJU
1 stop9h 51m
Delta
Sat 11/77:00 am
SJU
- GEG
2 stops18h 05m
Delta
Deal found 4/29![Delta logo]()
$542
This American Airlines deal was found by Cheapflights users on 5/3. Clicking the “Pick Dates” 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 8/113:18 pm
PSC
- SJU
2 stops15h 25m
American Airlines
Mon 8/1712:59 am
SJU
- PSC
2 stops19h 28m
American Airlines
Deal found 5/3![American Airlines logo]()
$542
This Southwest deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/3110:45 pm
PDX
- SJU
1 stop11h 05m
Southwest
Fri 9/115:30 am
SJU
- PDX
1 stop12h 30m
Southwest
Deal found 5/1![Southwest logo]()
$466
This United Airlines deal was found by Cheapflights users on 5/3. Clicking the “Pick Dates” 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 10/1710:35 pm
PDX
- SJU
1 stop10h 22m
United Airlines
Fri 10/231:00 am
SJU
- PDX
2 stops13h 35m
United Airlines
Deal found 5/3![United Airlines logo]()
$530
This Delta deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/217:20 am
SEA
- SJU
1 stop13h 36m
Delta
Tue 10/277:00 am
SJU
- SEA
2 stops18h 05m
Delta
Deal found 5/1![Delta logo]()
$545
This Southwest deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/110:45 pm
PDX
- SJU
1 stop11h 05m
Southwest
Sat 9/55:05 am
SJU
- PDX
2 stops11h 55m
Southwest
Deal found 4/29![Southwest logo]()
$466
This United Airlines deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/2910:35 pm
PDX
- SJU
1 stop12h 10m
United Airlines
Sat 10/32:00 pm
SJU
- PDX
1 stop11h 52m
United Airlines
Deal found 4/29![United Airlines logo]()
$530
This Delta deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/217:20 am
SEA
- SJU
1 stop13h 36m
Delta
Sat 10/317:30 am
SJU
- SEA
2 stops19h 41m
Delta
Deal found 5/1![Delta logo]()
$545
This Southwest deal was found by Cheapflights users on 5/4. Clicking the “Pick Dates” 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 8/197:10 am
SEA
- SJU
2 stops11h 50m
Southwest
Wed 9/21:45 pm
SJU
- SEA
2 stops12h 20m
Southwest
Deal found 5/4![Southwest logo]()
$474
This United Airlines deal was found by Cheapflights users on 5/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/265:00 am
SEA
- BQN
2 stops15h 09m
United Airlines
Mon 9/2812:15 am
BQN
- SEA
2 stops16h 07m
United Airlines
Deal found 5/2![United Airlines logo]()
$574
This American Airlines deal was found by Cheapflights users on 5/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/305:44 am
GEG
- SJU
1 stop14h 55m
American Airlines
Thu 7/912:59 am
SJU
- GEG
1 stop15h 40m
American Airlines
Deal found 5/2![American Airlines logo]()
$701
This Delta deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/2911:05 pm
SEA
- SJU
1 stop11h 15m
Delta
Fri 6/51:16 pm
SJU
- SEA
2 stops13h 54m
Delta
Deal found 4/30![Delta logo]()
$595
This Southwest deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/317:35 pm
PDX
- SJU
2 stops12h 25m
Southwest
Mon 9/75:00 am
SJU
- PDX
2 stops13h 00m
Southwest
Deal found 4/30![Southwest logo]()
$498
This American Airlines deal was found by Cheapflights users on 5/3. Clicking the “Pick Dates” 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 5/315:44 am
GEG
- SJU
1 stop14h 55m
American Airlines
Thu 6/412:57 am
SJU
- GEG
1 stop15h 14m
American Airlines
Deal found 5/3![American Airlines logo]()
$709
This Southwest deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/2910:45 pm
PDX
- SJU
1 stop11h 05m
Southwest
Sat 10/35:00 am
SJU
- PDX
2 stops12h 35m
Southwest
Deal found 4/29![Southwest logo]()
$498
This Alaska Airlines deal was found by Cheapflights users on 5/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/2410:49 am
PSC
- SJU
2 stops25h 05m
Alaska Airlines
Fri 8/283:44 pm
SJU
- PSC
2 stops32h 17m
Alaska Airlines
Deal found 5/2![Alaska Airlines logo]()
$914
This Southwest deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/136:15 am
SEA
- SJU
2 stops14h 35m
Southwest
Mon 8/176:00 am
SJU
- SEA
2 stops11h 55m
Southwest
Deal found 5/1![Southwest logo]()
$510
This American Airlines deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/152:12 pm
PSC
- SJU
2 stops17h 36m
American Airlines
Mon 5/1811:59 pm
SJU
- PSC
2 stops16h 34m
American Airlines
Deal found 5/1![American Airlines logo]()
$776
This Delta deal was found by Cheapflights users on 5/3. Clicking the “Pick Dates” 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 5/175:30 pm
PSC
- SJU
2 stops16h 50m
Delta
Thu 5/216:15 am
SJU
- PSC
2 stops16h 18m
Delta
Deal found 5/3![Delta logo]()
$709
This United Airlines deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/205:00 am
GEG
- SJU
1 stop9h 38m
United Airlines
Mon 7/271:40 pm
SJU
- GEG
1 stop10h 25m
United Airlines
Deal found 4/29![United Airlines logo]()
$758
This United Airlines deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/225:25 am
PSC
- SJU
1 stop9h 13m
United Airlines
Wed 8/267:00 am
SJU
- PSC
2 stops16h 53m
United Airlines
Deal found 5/1![United Airlines logo]()
$782
This Southwest deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/206:05 pm
GEG
- SJU
2 stops14h 25m
Southwest
Mon 7/275:00 am
SJU
- GEG
2 stops11h 35m
Southwest
Deal found 4/29![Southwest logo]()
$629
Last-minute flights from Washington to Puerto RicoDiscover last-minute flight deals from Washington to Puerto Rico. Data last updated May 4, 2026 and is based on user searches.
Discover last-minute flight deals from Washington to Puerto Rico. Data last updated May 4, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/166:00 am
SEA
- SJU
1 stop11h 55m
American Airlines
Sun 5/241:47 pm
SJU
- SEA
1 stop12h 11m
American Airlines
Deal found 5/1![American Airlines logo]()
$543
This American Airlines deal was found by Cheapflights users on 5/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/1810:29 pm
SEA
- SJU
1 stop13h 51m
American Airlines
Fri 5/291:47 pm
SJU
- SEA
1 stop12h 11m
American Airlines
Deal found 5/4![American Airlines logo]()
$475
This Priceline deal was found by Cheapflights users on 5/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/2211:35 am
SEA
- SJU
1 stop31h 41m
JetBlue
Fri 5/299:52 am
SJU
- SEA
1 stop14h 04m
JetBlue
Deal found 5/4![JetBlue logo]()
$552
This American Airlines deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/278:10 am
SEA
- SJU
1 stop11h 51m
American Airlines
Sat 6/66:21 am
SJU
- SEA
1 stop18h 14m
American Airlines
Deal found 4/30![American Airlines logo]()
$499
This American Airlines deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/285:15 am
SEA
- SJU
1 stop14h 30m
American Airlines
Sat 6/612:57 am
SJU
- SEA
1 stop11h 30m
American Airlines
Deal found 4/30![American Airlines logo]()
$546
This Delta deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/298:11 pm
PDX
- SJU
2 stops14h 09m
Delta
Thu 6/41:16 pm
SJU
- PDX
2 stops13h 28m
Delta
Deal found 4/30![Delta logo]()
$530
This Delta deal was found by Cheapflights users on 5/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/16:00 am
SEA
- SJU
2 stops14h 35m
Delta
Thu 6/111:10 pm
SJU
- SEA
1 stop12h 58m
Delta
Deal found 5/4![Delta logo]()
$494
This American Airlines deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/15:15 am
SEA
- SJU
1 stop14h 30m
American Airlines
Mon 6/812:57 am
SJU
- SEA
1 stop11h 30m
American Airlines
Deal found 4/29![American Airlines logo]()
$503
This Expedia deal was found by Cheapflights users on 5/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/111:39 pm
SEA
- SJU
1 stop12h 51m
JetBlue
Fri 6/128:25 am
SJU
- SEA
1 stop17h 24m
JetBlue
Deal found 5/4![JetBlue logo]()
$540
This American Airlines deal was found by Cheapflights users on 5/4. Clicking the “Pick Dates” 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 6/35:49 am
PDX
- SJU
1 stop13h 56m
American Airlines
Wed 6/103:39 pm
SJU
- PDX
1 stop11h 20m
American Airlines
Deal found 5/4![American Airlines logo]()
$535
This American Airlines deal was found by Cheapflights users on 5/4. Clicking the “Pick Dates” 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 6/910:40 pm
PDX
- SJU
1 stop11h 17m
American Airlines
Thu 6/186:21 am
SJU
- PDX
1 stop20h 02m
American Airlines
Deal found 5/4![American Airlines logo]()
$548
This Southwest deal was found by Cheapflights users on 5/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/308:50 am
SEA
- SJU
1 stop12h 55m
Southwest
Fri 7/105:30 am
SJU
- SEA
1 stop16h 00m
Southwest
Deal found 5/2![Southwest logo]()
$530
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 May 4, 2026.
Search for one-way flight options from Washington to Puerto Rico. Find affordable one-way fares based on user searches. Data last updated May 4, 2026.
This Kiwi.com deal was found by Cheapflights users on 5/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/97:41 pm
SEA
- SJU
2 stops27h 28m
Frontier
Deal found 5/2![Frontier logo]()
$196
This Kiwi.com deal was found by Cheapflights users on 5/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/2612:26 pm
PDX
- SJU
2 stops33h 11m
Frontier
Deal found 5/2![Frontier logo]()
$217
This Cheapflightsfares deal was found by Cheapflights users on 5/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/3011:39 pm
SEA
- SJU
1 stop10h 37m
JetBlue
Deal found 5/2![JetBlue logo]()
$223
This Southwest deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/1010:30 pm
SEA
- SJU
1 stop11h 20m
Southwest
Deal found 5/1![Southwest logo]()
$227
This American Airlines deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/166:00 am
SEA
- SJU
1 stop11h 55m
American Airlines
Deal found 5/1![American Airlines logo]()
$228
This Kiwi.com deal was found by Cheapflights users on 5/4. Clicking the “Pick Dates” 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 5/282:44 pm
PDX
- SJU
3 stops30h 15m
Multiple Airlines
Deal found 5/4![Multiple Airlines logo]()
$229
This Kiwi.com deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/187:50 pm
SEA
- SJU
2 stops17h 53m
Frontier
Deal found 4/30![Frontier logo]()
$233
This Southwest deal was found by Cheapflights users on 5/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/2710:45 pm
PDX
- SJU
1 stop12h 45m
Southwest
Deal found 5/2![Southwest logo]()
$233
This Kiwi.com deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/293:33 pm
SEA
- SJU
2 stops22h 01m
Frontier
Deal found 4/30![Frontier logo]()
$240
This Kiwi.com deal was found by Cheapflights users on 5/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/245:20 pm
PDX
- SJU
2 stops28h 17m
Frontier
Deal found 5/2![Frontier logo]()
$241
This Kiwi.com deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/163:33 pm
SEA
- SJU
2 stops29h 42m
Frontier
Deal found 4/30![Frontier logo]()
$246
This Delta deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/17:15 am
SEA
- SJU
1 stop13h 20m
Delta
Deal found 4/30![Delta logo]()
$247
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 May 4, 2026.
Round-trip from | $466 (Southwest) |
|---|---|
One-way from | $196 (Kiwi.com) |
Popular in | December |
Cheapest in | October |
Average price | $526 |
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 May 4, 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
Sun 8/23
7:40 am-12:30 am
2 stops13h 50m
San Juan Luis Munoz Marin Intl
Sat 8/29
5:05 am-2:00 pm
2 stops11h 55m
$466
PortlandSan Juan
PDX - SJU
PDXSJU
Portland
Sun 8/30
10:45 pm-2:30 pm
1 stop12h 45m
San Juan Luis Munoz Marin Intl
Sat 9/5
5:05 am-2:00 pm
2 stops11h 55m
$466
PortlandSan Juan
PDX - SJU
PDXSJU
Portland
Thu 8/13
6:05 am-10:15 pm
2 stops13h 10m
San Juan Luis Munoz Marin Intl
Thu 8/20
10:00 am-8:45 pm
2 stops13h 45m
$466
PortlandSan Juan
PDX - SJU
PDXSJU
Portland
Mon 8/31
10:45 pm-12:50 pm
1 stop11h 05m
San Juan Luis Munoz Marin Intl
Fri 9/11
5:30 am-3:00 pm
1 stop12h 30m
$466
PortlandSan Juan
PDX - SJU
PDXSJU
Portland
Tue 9/1
10:45 pm-12:50 pm
1 stop11h 05m
San Juan Luis Munoz Marin Intl
Sat 9/5
5:05 am-2:00 pm
2 stops11h 55m
$466
SeattleSan Juan
SEA - SJU
SEASJU
Seattle/Tacoma Intl
Wed 8/19
7:10 am-10:00 pm
2 stops11h 50m
San Juan Luis Munoz Marin Intl
Wed 9/2
1:45 pm-11:05 pm
2 stops12h 20m
$474
SeattleSan Juan
SEA - SJU
SEASJU
Seattle/Tacoma Intl
Tue 10/6
11:59 pm-3:42 pm
1 stop12h 43m
San Juan Luis Munoz Marin Intl
Tue 10/13
2:00 pm-10:56 pm
1 stop11h 56m
$494
SeattleSan Juan
SEA - SJU
SEASJU
Seattle/Tacoma Intl
Mon 10/5
11:50 pm-2:44 pm
1 stop11h 54m
San Juan Luis Munoz Marin Intl
Tue 10/13
2:00 pm-10:56 pm
1 stop11h 56m
$494
PortlandSan Juan
PDX - SJU
PDXSJU
Portland
Mon 8/31
7:35 pm-11:00 am
2 stops12h 25m
San Juan Luis Munoz Marin Intl
Mon 9/7
5:00 am-3:00 pm
2 stops13h 00m
$498
PortlandSan Juan
PDX - SJU
PDXSJU
Portland
Tue 9/29
10:45 pm-12:50 pm
1 stop11h 05m
San Juan Luis Munoz Marin Intl
Sat 10/3
5:00 am-2:35 pm
2 stops12h 35m
$498
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
GEG-SJU
PSC-SJU
SEA-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
SEA-SJU
PDX-SJU
GEG-SJU
PSC-SJU
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.
What is the cheapest month to book a flight from State of Washington to Puerto Rico?
Currently, February is the cheapest month in which you can book a flight from State of Washington to Puerto Rico (average of $182). Flying from State of Washington to Puerto Rico in January is currently the most expensive (average of $363). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
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 May 4, 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 May 4, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$175 | Average$344 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$282 | Average$433 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$342 | Average$612 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$363 | Average$709 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$364 | Average$603 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$434 | Average$617 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$454 | Average$828 | FlexibilityNo cancel fee | On-time83% | |
| Cheapest$587 | Average$727 | FlexibilityNo cancel fee | On-time75% |