$100+ Cheap flights from Dulles Intl (IAD) to Puerto Rico
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/22. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — SJU
Nov 29 — Dec 61
Round-trip
1 adult, Economy
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Find cheap flights from Dulles Intl 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 Dulles Intl to Puerto RicoExplore the most affordable flight options available from Dulles Intl to Puerto Rico. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 30, 2026.
Explore the most affordable flight options available from Dulles Intl to Puerto Rico. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 30, 2026.
This Mytrip deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/212:06 pm -
2 stops25h 08m
Fri 12/113:47 am -
2 stops14h 51m
Deal found 10/27![Frontier logo]()
$230
This Kiwi.com deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” 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 12/410:33 pm -
2 stops27h 19m
Fri 12/113:47 am -
1 stop17h 41m
Deal found 10/27![Frontier logo]()
$241
This Kiwi.com deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” 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 11/219:35 pm -
1 stop28h 12m
Fri 12/113:47 am -
2 stops12h 02m
Deal found 10/27![Frontier logo]()
$242
This FlightHub deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/310:33 pm -
1 stop25h 34m
Tue 12/85:01 am -
1 stop7h 10m
Deal found 10/27![Frontier logo]()
$248
This Kiwi.com deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” 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 11/96:07 pm -
1 stop20h 12m
Fri 11/133:55 pm -
1 stop8h 48m
Deal found 10/26![Frontier logo]()
$249
This Cheapflightsfares deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/56:07 pm -
1 stop18h 18m
Mon 11/97:00 am -
1 stop14h 11m
Deal found 10/28![Frontier logo]()
$250
This Mytrip deal was found by Cheapflights users on 10/29. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/212:06 pm -
2 stops12h 52m
Tue 12/82:49 am -
2 stops13h 00m
Deal found 10/29![Frontier logo]()
$251
This Frontier deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/221:05 pm -
Nonstop3h 47m
Sun 12/65:01 am -
1 stop13h 37m
Deal found 10/27![Frontier logo]()
$252
This Cheapflightsfares deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/66:07 pm -
1 stop27h 47m
Sun 11/812:50 pm -
1 stop25h 09m
Deal found 10/28![Frontier logo]()
$253
This Cheapflightsfares deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/66:07 pm -
1 stop27h 47m
Mon 11/911:20 am -
1 stop24h 01m
Deal found 10/28![Frontier logo]()
$254
This Kiwi.com deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” 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 11/1711:16 am -
1 stop14h 30m
Mon 11/238:53 am -
Nonstop4h 17m
Deal found 10/25![Frontier logo]()
$255
This Kiwi.com deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” 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 11/1711:16 am -
1 stop14h 30m
Sat 11/218:53 am -
Nonstop4h 17m
Deal found 10/25![Frontier logo]()
$256
Best flights from Dulles Intl to Puerto RicoDiscover carefully curated flight deals from Dulles Intl to Puerto Rico that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 30, 2026.
Discover carefully curated flight deals from Dulles Intl to Puerto Rico that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 30, 2026.
This Cheapflightsfares deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” 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.
Tue 11/1711:16 am -
1 stop23h 01m
Tue 11/242:54 pm -
1 stop6h 46m
Deal found 10/25![Frontier logo]()
$257
This United Airlines deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” 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 11/1110:15 am -
2 stops12h 42m
Fri 11/131:09 am -
1 stop7h 11m
Deal found 10/26![United Airlines logo]()
$366
This United Airlines deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/308:22 am -
Nonstop3h 53m
Tue 12/85:50 pm -
Nonstop4h 06m
Deal found 10/28![United Airlines logo]()
$367
This United deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/225:29 pm -
1 stop15h 41m
Wed 11/258:25 am -
1 stop27h 44m
Deal found 10/28![Multiple Airlines logo]()
$770
This FlightHub deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/1310:35 pm -
2 stops51h 17m
Sun 12/203:21 pm -
2 stops34h 30m
Deal found 10/26![Frontier logo]()
$398
This United Airlines deal was found by Cheapflights users on 10/30. 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.
Fri 11/1312:50 pm -
2 stops10h 07m
Sun 11/151:09 am -
2 stops11h 46m
Deal found 10/30![United Airlines logo]()
$379
This United Airlines deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/78:22 am -
Nonstop3h 53m
Mon 12/142:52 pm -
1 stop9h 02m
Deal found 10/28![United Airlines logo]()
$382
This United Airlines deal was found by Cheapflights users on 10/30. 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.
Fri 11/2712:53 pm -
2 stops10h 04m
Thu 12/31:09 am -
2 stops11h 51m
Deal found 10/30![United Airlines logo]()
$404
This United Airlines deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” 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 12/35:29 pm -
Nonstop3h 53m
Wed 12/91:00 pm -
1 stop9h 13m
Deal found 10/25![United Airlines logo]()
$448
This United Airlines deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” 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 1/35:29 pm -
Nonstop3h 53m
Thu 2/255:50 pm -
Nonstop4h 06m
Deal found 10/25![United Airlines logo]()
$477
This Kiwi.com deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/2312:26 pm -
1 stop18h 39m
Tue 12/2910:30 am -
2 stops31h 33m
Deal found 10/29![Multiple Airlines logo]()
$832
This United Airlines deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/135:29 pm -
Nonstop3h 53m
Tue 11/178:05 am -
Nonstop4h 04m
Deal found 10/28![United Airlines logo]()
$477
This United Airlines deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” 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 2/310:05 am -
1 stop9h 55m
Sat 2/138:05 am -
Nonstop4h 04m
Deal found 10/26![United Airlines logo]()
$482
This United Airlines deal was found by Cheapflights users on 10/29. 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.
Sat 1/238:15 am -
2 stops11h 45m
Fri 1/292:05 am -
2 stops14h 55m
Deal found 10/29![United Airlines logo]()
$486
This United Airlines deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” 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 2/195:29 pm -
Nonstop3h 53m
Tue 2/238:05 am -
Nonstop4h 04m
Deal found 10/25![United Airlines logo]()
$497
This United Airlines deal was found by Cheapflights users on 10/29. 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 11/108:22 am -
Nonstop3h 53m
Thu 11/123:46 pm -
1 stop9h 51m
Deal found 10/29![United Airlines logo]()
$502
This United deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/155:53 pm -
2 stops24h 26m
Mon 1/181:36 pm -
2 stops27h 22m
Deal found 10/28![Multiple Airlines logo]()
$1,220
This United Airlines deal was found by Cheapflights users on 10/29. 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.
Sat 1/236:00 am -
2 stops14h 00m
Tue 1/267:40 am -
2 stops14h 38m
Deal found 10/29![United Airlines logo]()
$506
This United Airlines deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” 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 12/106:05 am -
1 stop7h 35m
Sun 12/138:05 am -
Nonstop4h 04m
Deal found 10/25![United Airlines logo]()
$522
This United Airlines deal was found by Cheapflights users on 10/29. 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.
Wed 1/2712:47 pm -
2 stops10h 10m
Sat 1/301:09 am -
2 stops11h 36m
Deal found 10/29![United Airlines logo]()
$530
This United Airlines deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/210:15 am -
2 stops12h 42m
Wed 11/41:09 am -
1 stop7h 11m
Deal found 10/28![United Airlines logo]()
$551
This United Airlines deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” 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 11/912:50 pm -
2 stops10h 07m
Tue 11/101:09 am -
2 stops13h 26m
Deal found 10/26![United Airlines logo]()
$566
This United Airlines deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/28:22 am -
1 stop6h 51m
Fri 11/610:30 am -
1 stop11h 26m
Deal found 10/28![United Airlines logo]()
$1,873
This United Airlines deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/26:10 am -
2 stops9h 03m
Thu 11/510:30 am -
2 stops11h 57m
Deal found 10/28![United Airlines logo]()
$1,896
This United Airlines deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/248:22 am -
1 stop6h 51m
Tue 12/110:30 am -
2 stops11h 43m
Deal found 10/26![United Airlines logo]()
$1,896
This United Airlines deal was found by Cheapflights users on 10/29. 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.
Wed 12/236:05 am -
2 stops9h 08m
Tue 12/2910:30 am -
3 stops15h 08m
Deal found 10/29![United Airlines logo]()
$2,205
This United Airlines deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” 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 12/248:22 am -
1 stop6h 51m
Tue 12/2910:30 am -
2 stops13h 51m
Deal found 10/25![United Airlines logo]()
$2,205
This United Airlines deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” 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 12/218:22 am -
1 stop6h 51m
Wed 12/3010:30 am -
2 stops13h 51m
Deal found 10/25![United Airlines logo]()
$2,439
This United Airlines deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” 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 12/218:22 am -
1 stop6h 51m
Thu 12/3110:30 am -
2 stops13h 51m
Deal found 10/25![United Airlines logo]()
$2,439
This United Airlines deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” 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 12/188:22 am -
1 stop6h 51m
Thu 12/3110:30 am -
2 stops13h 51m
Deal found 10/25![United Airlines logo]()
$2,439
Last-minute flights from Dulles Intl to Puerto RicoDiscover last-minute flight deals from Dulles Intl to Puerto Rico. Data last updated October 30, 2026 and is based on user searches.
Discover last-minute flight deals from Dulles Intl to Puerto Rico. Data last updated October 30, 2026 and is based on user searches.
This Cheapflightsfares deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/56:07 pm -
1 stop18h 18m
Mon 11/97:00 am -
1 stop14h 11m
Deal found 10/28![Frontier logo]()
$250
This Kiwi.com deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/56:07 pm -
1 stop18h 18m
Fri 11/612:59 am -
2 stops20h 12m
Deal found 10/29![Frontier logo]()
$251
This Cheapflightsfares deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/66:07 pm -
1 stop27h 47m
Sun 11/812:50 pm -
1 stop25h 09m
Deal found 10/28![Frontier logo]()
$253
This Cheapflightsfares deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/66:07 pm -
1 stop27h 47m
Mon 11/911:20 am -
1 stop24h 01m
Deal found 10/28![Frontier logo]()
$254
This Kiwi.com deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” 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 11/76:07 pm -
1 stop18h 18m
Wed 11/183:55 pm -
1 stop8h 48m
Deal found 10/25![Frontier logo]()
$257
This Kiwi.com deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” 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 11/96:07 pm -
1 stop20h 12m
Fri 11/133:55 pm -
1 stop8h 48m
Deal found 10/26![Frontier logo]()
$249
This Kiwi.com deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” 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 11/1711:16 am -
1 stop14h 30m
Mon 11/238:53 am -
Nonstop4h 17m
Deal found 10/25![Frontier logo]()
$255
This Kiwi.com deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” 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 11/1711:16 am -
1 stop14h 30m
Sat 11/218:53 am -
Nonstop4h 17m
Deal found 10/25![Frontier logo]()
$256
This Cheapflightsfares deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” 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.
Tue 11/1711:16 am -
1 stop23h 01m
Tue 11/242:54 pm -
1 stop6h 46m
Deal found 10/25![Frontier logo]()
$257
This FlightHub deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/1711:16 am -
1 stop14h 30m
Tue 11/247:31 am -
1 stop15h 31m
Deal found 10/28![Frontier logo]()
$258
This Kiwi.com deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” 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 11/219:35 pm -
1 stop28h 12m
Fri 12/113:47 am -
2 stops12h 02m
Deal found 10/27![Frontier logo]()
$242
This Frontier deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/221:05 pm -
Nonstop3h 47m
Sat 12/125:01 am -
1 stop10h 48m
Deal found 10/27![Frontier logo]()
$252
One-way flights from Dulles Intl to Puerto RicoSearch for one-way flight options from Dulles Intl to Puerto Rico. Find affordable one-way fares based on user searches. Data last updated October 30, 2026.
Search for one-way flight options from Dulles Intl to Puerto Rico. Find affordable one-way fares based on user searches. Data last updated October 30, 2026.
This Cheapflightsfares deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” 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.
Sun 11/229:35 pm -
1 stop15h 24m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/26![Frontier logo]()
$100
This Cheapflightsfares deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/219:35 pm -
1 stop28h 12m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/28![Frontier logo]()
$102
This Mytrip deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/212:06 pm -
2 stops25h 08m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/27![Frontier logo]()
$116
This Kiwi.com deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” 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 12/110:33 pm -
2 stops38h 41m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/27![Frontier logo]()
$118
This Super.com deal was found by Cheapflights users on 10/29. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/133:08 pm -
1 stop21h 16m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/29![Frontier logo]()
$137
This Frontier deal was found by Cheapflights users on 10/29. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/610:35 pm -
2 stops21h 02m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/29![Frontier logo]()
$138
This Kiwi.com deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/213:58 pm -
2 stops16h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/29![Frontier logo]()
$139
This Kiwi.com deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/126:07 pm -
2 stops29h 52m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/29![Frontier logo]()
$140
This Super.com deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/1011:16 am -
1 stop14h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/27![Frontier logo]()
$141
This Cheapflightsfares deal was found by Cheapflights users on 10/29. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/1911:16 am -
1 stop11h 33m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/29![Frontier logo]()
$142
This Kiwi.com deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/263:58 pm -
1 stop21h 01m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/29![Frontier logo]()
$143
This Cheapflightsfares deal was found by Cheapflights users on 10/29. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/239:35 pm -
1 stop15h 24m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/29![Frontier logo]()
$143
Find flight deals from Dulles Intl to Puerto Rico
Keep the following information in mind while searching for Dulles Intl to Puerto Rico flight deals. Data was last updated October 30, 2026.
Round-trip from | $230 (Mytrip) |
|---|---|
One-way from | $100 (Cheapflightsfares) |
Popular in | December |
Cheapest in | February |
Average price | $374 |
Good round-trip deal | $393 or less |
Good one-way deal | $205 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Dulles Intl 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 7,457,451 searches. Data last updated October 30, 2026.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Puerto Rico that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Washington, D.C.Aguadilla
IAD Washington, D.C. Dulles Intl - BQN Aguadilla Borinquen
IADBQN
Washington, D.C. Dulles Intl
Sat 11/21
9:35 pm-2:47 am
1 stop28h 12m
Aguadilla Borinquen
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$102
Washington, D.C.Aguadilla
IAD Washington, D.C. Dulles Intl - BQN Aguadilla Borinquen
IADBQN
Washington, D.C. Dulles Intl
Mon 11/23
9:35 pm-1:59 pm
1 stop15h 24m
Aguadilla Borinquen
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$150
Washington, D.C.Aguadilla
IAD Washington, D.C. Dulles Intl - BQN Aguadilla Borinquen
IADBQN
Washington, D.C. Dulles Intl
Mon 11/23
6:36 pm-1:59 pm
2 stops18h 23m
Aguadilla Borinquen
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$160
Quickest round-trip
Washington, D.C.San Juan
IAD Washington, D.C. Dulles Intl - SJU San Juan Luis Munoz Marin Intl
IADSJU
Washington, D.C. Dulles Intl
Mon 11/30
8:22 am-1:15 pm
Nonstop3h 53m
San Juan Luis Munoz Marin Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$179
Washington, D.C.San Juan
IAD Washington, D.C. Dulles Intl - SJU San Juan Luis Munoz Marin Intl
IADSJU
Washington, D.C. Dulles Intl
Mon 11/16
8:22 am-1:15 pm
Nonstop3h 53m
San Juan Luis Munoz Marin Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$189
Washington, D.C.San Juan
IAD Washington, D.C. Dulles Intl - SJU San Juan Luis Munoz Marin Intl
IADSJU
Washington, D.C. Dulles Intl
Thu 4/22
7:00 am-4:20 pm
1 stop9h 20m
San Juan Luis Munoz Marin Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$193
Washington, D.C.San Juan
IAD Washington, D.C. Dulles Intl - SJU San Juan Luis Munoz Marin Intl
IADSJU
Washington, D.C. Dulles Intl
Tue 3/30
6:00 am-1:25 pm
1 stop7h 25m
San Juan Luis Munoz Marin Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$193
Washington, D.C.San Juan
IAD Washington, D.C. Dulles Intl - SJU San Juan Luis Munoz Marin Intl
IADSJU
Washington, D.C. Dulles Intl
Wed 12/2
6:05 am-2:40 pm
1 stop7h 35m
San Juan Luis Munoz Marin Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$199
Washington, D.C.Aguadilla
IAD Washington, D.C. Dulles Intl - BQN Aguadilla Borinquen
IADBQN
Washington, D.C. Dulles Intl
Sun 11/22
6:50 am-1:59 pm
2 stops30h 09m
Aguadilla Borinquen
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$207
Washington, D.C.San Juan
IAD Washington, D.C. Dulles Intl - SJU San Juan Luis Munoz Marin Intl
IADSJU
Washington, D.C. Dulles Intl
Wed 2/10
8:22 am-1:15 pm
Nonstop3h 53m
San Juan Luis Munoz Marin Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$208
Showing 1-10 of 57 resultsSorted by cheapest first
Best time to book a flight from Dulles Intl to Puerto Rico
Have a flexible travel schedule? Discover the best time to fly to Puerto Rico from Dulles Intl with our price prediction graph.
IAD-BQN
IAD-SJU
IAD-VQS
IAD-CPX
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Washington, D.C. Dulles Intl Airport to Puerto Rico
IAD-PR0
IAD-BQN
IAD-SJU
IAD-VQS
IAD-CPX
What is the cheapest month to book a flight from Washington, D.C. Dulles Intl Airport to Puerto Rico?
Currently, February is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Puerto Rico (average of $320). Flying from Washington, D.C. Dulles Intl Airport to Puerto Rico in July is currently the most expensive (average of $538). 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.
What is the cheapest time of day to fly from IAD to PR?
Find hourly flight availability from Dulles Intl to Puerto Rico. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 30, 2026.
It’s typically best to fly out from Washington, D.C. Dulles Intl Airport to Puerto Rico in the evening. Doing so could potentially save you 35% on the flight price compared to flying in the morning, which is usually more expensive.
How often are flights from Washington, D.C. to Puerto Rico delayed?
About 20% of weekly flights between Washington, D.C. and Puerto Rico have experienced delays in the past year, with the average delay time being 127 minutes.
What is the most punctual flight time for Washington, D.C. to Puerto Rico flights?
Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving in the evening tend to experience delays more often.
What day of the week experiences the fewest flight delays on this route?
Wednesday tends to have the lowest number of delays on this route, whereas Tuesday has historically faced a higher average of delays compared to other days of the week.
Which airline has the best punctuality record on Washington, D.C. to Puerto Rico flights?
Over the last year, United Airlines have had the lowest number of delays on this route, with just 19% of flights being delayed.
How far ahead should I book a flight from Washington, D.C. Dulles Intl Airport to Puerto Rico?
The best time to book flights from Washington, D.C. Dulles Intl Airport to Puerto Rico is 56 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
What is the cheapest day to fly from Washington, D.C. Dulles Intl Airport to Puerto Rico?
Use this chart to determine the cheapest time to fly round-trip from Dulles Intl to Puerto Rico. Price data was last updated on October 24, 2026.
Travelers seeking maximum savings on their Washington, D.C. Dulles Intl Airport to Puerto Rico flight should consider departing on Thursday evenings when fares are most often at their lowest. Friday mornings flights should be avoided if possible as fares are typically the most expensive at this time.
Reviews of airlines servicing Puerto Rico
Get insights into the airlines that provide service to Puerto Rico. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Puerto Rico. Reviews last updated October 30, 2026.
Read through reviews of airlines operating flights from Washington, D.C. Dulles Intl Airport to Puerto Rico, such as Delta,United Airlines, andJetBlue. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Boarding
8.1
Entertainment
7.8
Overall
7.8
Food
7.2
Comfort
7.8
Crew
8.5
Reviews
1 / 20
6.0
GoodEllen,Oct 2026
GRR - ATL
Boarding
8.1
Entertainment
7.8
Overall
7.8
Food
7.2
Comfort
7.8
Crew
8.5
Reviews
1 / 20
6.0
GoodEllen,Oct 2026
GRR - ATL
Boarding
8.1
Entertainment
7.8
Overall
7.8
Food
7.2
Comfort
7.8
Crew
8.5
Reviews
1 / 20
6.0
GoodEllen,Oct 2026
GRR - ATL
Boarding
8.1
Entertainment
7.8
Overall
7.8
Food
7.2
Comfort
7.8
Crew
8.5
Reviews
1 / 20
6.0
GoodEllen,Oct 2026
GRR - ATL
Boarding
8.1
Entertainment
7.8
Overall
7.8
Food
7.2
Comfort
7.8
Crew
8.5
Reviews
1 / 20
6.0
GoodEllen,Oct 2026
GRR - ATL
Boarding
8.1
Entertainment
7.8
Overall
7.8
Food
7.2
Comfort
7.8
Crew
8.5
Reviews
1 / 20
6.0
GoodEllen,Oct 2026
GRR - ATL
Related info for your journey
Find useful and relevant information for your journey from Dulles Intl to Puerto Rico. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for Dulles Intl to Puerto Rico
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Complete your trip
Complete your trip to Puerto Rico by adding a car rental and/or hotel reservation to your travel itinerary.
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Find flights from Dulles Intl to Puerto Rico, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Dulles Intl and Puerto Rico flights
Browse other Dulles Intl and Puerto Rico flight options. Last updated on October 30, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Dulles Intl to Puerto Rico flights
Consider these flights traveling from Dulles Intl to Puerto Rico.
Top 5 airlines flying from Dulles Intl to Puerto Rico
Discover the top 5 airlines that operate flights from Dulles Intl 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 7,457,451 searches. Data last updated October 30, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$87 | Average$327 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$136 | Average$342 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$240 | Average$464 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$271 | Average$494 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$285 | Average$438 | FlexibilityNo cancel fee | On-time71% |