$119+ Cheap flights from Puerto Rico to Dulles Intl (IAD)
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 12/15. Fares are subject to change and may not be available on all flights or dates of travel.
SJU — IAD
Dec 5 — Dec 121
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
Find cheap flights from Puerto Rico to Dulles Intl with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Puerto Rico to Dulles Intl
Cheapest
Best
Last-minute
One-way
Cheapest flights from Puerto Rico to Dulles IntlExplore the most affordable flight options available from Puerto Rico to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 5, 2026.
Explore the most affordable flight options available from Puerto Rico to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 5, 2026.
This Kiwi.com deal was found by Cheapflights users on 11/4. 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.
Tue 11/248:53 am -
Nonstop4h 17m
Mon 11/301:05 pm -
Nonstop3h 47m
Deal found 11/4![Frontier logo]()
$246
This Cheapflightsfares deal was found by Cheapflights users on 11/5. Clicking the “Pick Dates” 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 11/67:00 am -
1 stop14h 11m
Mon 11/96:07 pm -
1 stop20h 12m
Deal found 11/5![Frontier logo]()
$248
This FlightHub deal was found by Cheapflights users on 11/3. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/115:01 am -
1 stop10h 48m
Mon 12/148:26 pm -
1 stop28h 47m
Deal found 11/3![Frontier logo]()
$251
This Kiwi.com deal was found by Cheapflights users on 11/2. 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.
Mon 11/163:55 am -
1 stop7h 26m
Sat 11/218:22 pm -
1 stop13h 11m
Deal found 11/2![Frontier logo]()
$252
This Cheapflightsfares deal was found by Cheapflights users on 11/2. 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.
Fri 11/67:00 am -
1 stop14h 11m
Sat 11/211:05 pm -
Nonstop3h 47m
Deal found 11/2![Frontier logo]()
$253
This Cheapflightsfares deal was found by Cheapflights users on 11/4. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/57:00 am -
1 stop14h 11m
Wed 11/1811:16 am -
1 stop14h 30m
Deal found 11/4![Frontier logo]()
$254
This Priceline deal was found by Cheapflights users on 11/2. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/237:31 am -
1 stop15h 31m
Mon 11/303:58 pm -
1 stop27h 39m
Deal found 11/2![Frontier logo]()
$255
This Cheapflightsfares deal was found by Cheapflights users on 11/1. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/193:55 pm -
1 stop8h 48m
Sat 11/281:05 pm -
Nonstop3h 47m
Deal found 11/1![Frontier logo]()
$256
This Frontier deal was found by Cheapflights users on 11/2. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/235:19 am -
1 stop7h 55m
Wed 12/212:06 pm -
1 stop12h 01m
Deal found 11/2![Frontier logo]()
$257
This Cheapflightsfares deal was found by Cheapflights users on 11/2. 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.
Wed 11/258:53 am -
Nonstop4h 17m
Thu 12/33:33 pm -
1 stop28h 12m
Deal found 11/2![Frontier logo]()
$259
This Cheapflightsfares deal was found by Cheapflights users on 11/5. Clicking the “Pick Dates” 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 12/172:44 pm -
1 stop7h 27m
Mon 12/2110:28 pm -
1 stop26h 15m
Deal found 11/5![Frontier logo]()
$387
This Kiwi.com deal was found by Cheapflights users on 11/2. 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 12/153:47 am -
2 stops12h 02m
Mon 12/2110:28 pm -
1 stop14h 21m
Deal found 11/2![Frontier logo]()
$468
Best flights from Puerto Rico to Dulles IntlDiscover carefully curated flight deals from Puerto Rico to Dulles Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated November 5, 2026.
Discover carefully curated flight deals from Puerto Rico to Dulles Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated November 5, 2026.
This Delta deal was found by Cheapflights users on 11/1. 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.
Tue 3/236:15 am -
1 stop8h 26m
Tue 3/301:00 pm -
1 stop7h 20m
Deal found 11/1![Delta logo]()
$386
This United Airlines deal was found by Cheapflights users on 11/3. 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.
Tue 11/175:50 pm -
Nonstop4h 06m
Sat 11/215:29 pm -
Nonstop3h 53m
Deal found 11/3![United Airlines logo]()
$394
This Cheapflightsfares deal was found by Cheapflights users on 11/2. 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.
Thu 12/172:44 pm -
1 stop7h 27m
Mon 12/2110:28 pm -
1 stop14h 21m
Deal found 11/2![Frontier logo]()
$451
This United Airlines deal was found by Cheapflights users on 11/2. 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.
Mon 11/232:52 pm -
1 stop7h 35m
Mon 11/306:10 am -
1 stop6h 22m
Deal found 11/2![United Airlines logo]()
$413
This United Airlines deal was found by Cheapflights users on 11/3. 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.
Wed 2/31:09 am -
1 stop7h 16m
Tue 2/910:05 am -
2 stops12h 52m
Deal found 11/3![United Airlines logo]()
$426
This United Airlines deal was found by Cheapflights users on 11/2. 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.
Thu 11/192:05 am -
2 stops16h 19m
Mon 11/2312:50 pm -
2 stops10h 46m
Deal found 11/2![United Airlines logo]()
$470
This United Airlines deal was found by Cheapflights users on 10/31. Clicking the “Pick Dates” 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 11/208:05 am -
Nonstop4h 04m
Wed 12/28:22 am -
Nonstop3h 53m
Deal found 10/31![United Airlines logo]()
$477
This United Airlines deal was found by Cheapflights users on 11/3. 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.
Thu 12/38:05 am -
Nonstop4h 04m
Sun 12/65:29 pm -
Nonstop3h 53m
Deal found 11/3![United Airlines logo]()
$477
This United Airlines deal was found by Cheapflights users on 11/2. 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.
Thu 4/224:55 pm -
Nonstop4h 01m
Wed 4/288:34 am -
Nonstop4h 00m
Deal found 11/2![United Airlines logo]()
$477
This United Airlines deal was found by Cheapflights users on 11/1. 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 2/138:05 am -
Nonstop4h 04m
Tue 2/235:29 pm -
Nonstop3h 53m
Deal found 11/1![United Airlines logo]()
$477
This United Airlines deal was found by Cheapflights users on 11/3. 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.
Tue 3/237:05 am -
Nonstop4h 04m
Tue 3/306:30 am -
1 stop9h 12m
Deal found 11/3![United Airlines logo]()
$482
This United Airlines deal was found by Cheapflights users on 10/31. Clicking the “Pick Dates” 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 3/115:50 pm -
Nonstop4h 06m
Mon 3/156:00 am -
1 stop7h 40m
Deal found 10/31![United Airlines logo]()
$482
This United Airlines deal was found by Cheapflights users on 11/4. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/21:09 am -
1 stop7h 13m
Mon 12/78:15 am -
2 stops14h 42m
Deal found 11/4![United Airlines logo]()
$506
This United Airlines deal was found by Cheapflights users on 10/31. Clicking the “Pick Dates” 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 12/311:09 am -
1 stop7h 16m
Sat 1/910:05 am -
2 stops12h 52m
Deal found 10/31![United Airlines logo]()
$735
This United Airlines deal was found by Cheapflights users on 10/31. Clicking the “Pick Dates” 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 1/81:09 am -
1 stop16h 20m
Tue 1/126:00 am -
1 stop16h 57m
Deal found 10/31![United Airlines logo]()
$766
This United Airlines deal was found by Cheapflights users on 11/2. 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.
Wed 12/161:09 am -
2 stops11h 45m
Mon 12/2112:53 pm -
2 stops10h 04m
Deal found 11/2![United Airlines logo]()
$840
This United Airlines deal was found by Cheapflights users on 11/1. 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.
Mon 12/141:09 am -
2 stops13h 29m
Sun 12/2012:53 pm -
2 stops10h 04m
Deal found 11/1![United Airlines logo]()
$861
Last-minute flights from Puerto Rico to Dulles IntlDiscover last-minute flight deals from Puerto Rico to Dulles Intl. Data last updated November 5, 2026 and is based on user searches.
Discover last-minute flight deals from Puerto Rico to Dulles Intl. Data last updated November 5, 2026 and is based on user searches.
This Cheapflightsfares deal was found by Cheapflights users on 11/4. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/57:00 am -
1 stop14h 11m
Wed 11/1811:16 am -
1 stop14h 30m
Deal found 11/4![Frontier logo]()
$254
This Cheapflightsfares deal was found by Cheapflights users on 11/5. Clicking the “Pick Dates” 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 11/67:00 am -
1 stop14h 11m
Mon 11/96:07 pm -
1 stop20h 12m
Deal found 11/5![Frontier logo]()
$248
This Cheapflightsfares deal was found by Cheapflights users on 11/2. 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.
Fri 11/67:00 am -
1 stop14h 11m
Sat 11/211:05 pm -
Nonstop3h 47m
Deal found 11/2![Frontier logo]()
$253
This Kiwi.com deal was found by Cheapflights users on 11/2. 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.
Mon 11/163:55 am -
1 stop7h 26m
Sat 11/218:22 pm -
1 stop13h 11m
Deal found 11/2![Frontier logo]()
$252
This Cheapflightsfares deal was found by Cheapflights users on 11/1. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/193:55 pm -
1 stop8h 48m
Sat 11/281:05 pm -
Nonstop3h 47m
Deal found 11/1![Frontier logo]()
$256
This Priceline deal was found by Cheapflights users on 11/2. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/237:31 am -
1 stop15h 31m
Mon 11/303:58 pm -
1 stop27h 39m
Deal found 11/2![Frontier logo]()
$255
This Frontier deal was found by Cheapflights users on 11/2. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/235:19 am -
1 stop7h 55m
Tue 12/112:06 pm -
1 stop12h 01m
Deal found 11/2![Frontier logo]()
$257
This Kiwi.com deal was found by Cheapflights users on 11/4. 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.
Tue 11/248:53 am -
Nonstop4h 17m
Mon 11/301:05 pm -
Nonstop3h 47m
Deal found 11/4![Frontier logo]()
$246
This Cheapflightsfares deal was found by Cheapflights users on 11/2. 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.
Wed 11/258:53 am -
Nonstop4h 17m
Thu 12/33:33 pm -
1 stop28h 12m
Deal found 11/2![Frontier logo]()
$259
This FlightHub deal was found by Cheapflights users on 11/3. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/115:01 am -
1 stop10h 48m
Mon 12/148:26 pm -
1 stop28h 47m
Deal found 11/3![Frontier logo]()
$251
This Kiwi.com deal was found by Cheapflights users on 11/2. 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 12/153:47 am -
2 stops12h 02m
Mon 12/2110:28 pm -
1 stop14h 21m
Deal found 11/2![Frontier logo]()
$468
This Cheapflightsfares deal was found by Cheapflights users on 11/5. Clicking the “Pick Dates” 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 12/172:44 pm -
1 stop7h 27m
Mon 12/2110:28 pm -
1 stop26h 15m
Deal found 11/5![Frontier logo]()
$387
One-way flights from Puerto Rico to Dulles IntlSearch for one-way flight options from Puerto Rico to Dulles Intl. Find affordable one-way fares based on user searches. Data last updated November 5, 2026.
Search for one-way flight options from Puerto Rico to Dulles Intl. Find affordable one-way fares based on user searches. Data last updated November 5, 2026.
This Mytrip deal was found by Cheapflights users on 11/2. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/153:47 am -
2 stops12h 02m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/2![Frontier logo]()
$119
This FlightHub deal was found by Cheapflights users on 11/1. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/167:23 am -
1 stop27h 58m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/1![Frontier logo]()
$149
This Super.com deal was found by Cheapflights users on 11/1. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/117:25 pm -
1 stop15h 56m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/1![Frontier logo]()
$150
This Super.com deal was found by Cheapflights users on 11/2. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/143:55 am -
1 stop7h 26m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/2![Frontier logo]()
$151
This Kiwi.com deal was found by Cheapflights users on 11/3. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/107:26 pm -
1 stop15h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/3![Frontier logo]()
$152
This Frontier deal was found by Cheapflights users on 11/3. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/223:59 am -
2 stops21h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/3![Frontier logo]()
$152
This Kiwi.com deal was found by Cheapflights users on 10/31. Clicking the “Pick Dates” 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 12/63:03 pm -
2 stops44h 04m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/31![Frontier logo]()
$154
This Mytrip deal was found by Cheapflights users on 11/3. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/253:42 am -
2 stops12h 21m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/3![Frontier logo]()
$155
This Mytrip deal was found by Cheapflights users on 11/2. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/62:49 am -
2 stops13h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/2![Frontier logo]()
$157
This Kiwi.com deal was found by Cheapflights users on 11/3. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 1/122:41 am -
2 stops32h 28m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/3![Frontier logo]()
$158
This Kiwi.com deal was found by Cheapflights users on 11/4. 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.
Tue 11/178:45 am -
2 stops15h 58m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/4![Frontier logo]()
$162
This FlightHub deal was found by Cheapflights users on 11/3. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/222:54 pm -
1 stop6h 46m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/3![Frontier logo]()
$176
Find flight deals from Puerto Rico to Dulles Intl
Keep the following information in mind while searching for Puerto Rico to Dulles Intl flight deals. Data was last updated November 5, 2026.
Round-trip from | $246 (Kiwi.com) |
|---|---|
One-way from | $119 (Mytrip) |
Popular in | August |
Cheapest in | January |
Average price | $300 |
Good round-trip deal | $339 or less |
Good one-way deal | $178 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Puerto Rico to Dulles Intl 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 November 5, 2026.
Use the filters below to find and compare flights from Puerto Rico to Washington, D.C. Dulles Intl Airport that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
AguadillaWashington, D.C.
BQN Aguadilla Borinquen - IAD Washington, D.C. Dulles Intl
BQNIAD
Aguadilla Borinquen
Wed 11/18
12:22 pm-10:21 am
1 stop22h 59m
Washington, D.C. Dulles Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$181
AguadillaWashington, D.C.
BQN Aguadilla Borinquen - IAD Washington, D.C. Dulles Intl
BQNIAD
Aguadilla Borinquen
Sun 11/22
2:54 pm-8:40 pm
1 stop6h 46m
Washington, D.C. Dulles Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$200
Quickest round-trip
San JuanWashington, D.C.
SJU San Juan Luis Munoz Marin Intl - IAD Washington, D.C. Dulles Intl
SJUIAD
San Juan Luis Munoz Marin Intl
Wed 1/13
8:05 am-11:09 am
Nonstop4h 04m
Washington, D.C. Dulles Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$207
San JuanWashington, D.C.
SJU San Juan Luis Munoz Marin Intl - IAD Washington, D.C. Dulles Intl
SJUIAD
San Juan Luis Munoz Marin Intl
Sun 11/22
2:05 am-12:05 pm
2 stops11h 00m
Washington, D.C. Dulles Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$227
AguadillaWashington, D.C.
BQN Aguadilla Borinquen - IAD Washington, D.C. Dulles Intl
BQNIAD
Aguadilla Borinquen
Mon 11/16
1:09 am-4:33 pm
2 stops16h 24m
Washington, D.C. Dulles Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$233
San JuanWashington, D.C.
SJU San Juan Luis Munoz Marin Intl - IAD Washington, D.C. Dulles Intl
SJUIAD
San Juan Luis Munoz Marin Intl
Wed 12/16
8:05 am-11:09 am
Nonstop4h 04m
Washington, D.C. Dulles Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$239
AguadillaWashington, D.C.
BQN Aguadilla Borinquen - IAD Washington, D.C. Dulles Intl
BQNIAD
Aguadilla Borinquen
Fri 1/8
3:59 am-2:23 pm
2 stops35h 24m
Washington, D.C. Dulles Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$243
San JuanWashington, D.C.
SJU San Juan Luis Munoz Marin Intl - IAD Washington, D.C. Dulles Intl
SJUIAD
San Juan Luis Munoz Marin Intl
Wed 11/18
2:05 am-1:35 pm
2 stops12h 30m
Washington, D.C. Dulles Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$243
San JuanWashington, D.C.
SJU San Juan Luis Munoz Marin Intl - IAD Washington, D.C. Dulles Intl
SJUIAD
San Juan Luis Munoz Marin Intl
Thu 11/26
2:05 am-11:55 am
2 stops10h 50m
Washington, D.C. Dulles Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$243
AguadillaWashington, D.C.
BQN Aguadilla Borinquen - IAD Washington, D.C. Dulles Intl
BQNIAD
Aguadilla Borinquen
Sat 1/23
1:09 am-1:33 pm
2 stops13h 24m
Washington, D.C. Dulles Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$243
Showing 1-10 of 33 resultsSorted by cheapest first
Best time to book a flight from Puerto Rico to Dulles Intl
Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from Puerto Rico with our price prediction graph.
SJU-IAD
BQN-IAD
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 Puerto Rico to Washington, D.C. Dulles Intl Airport
PR0-IAD
SJU-IAD
BQN-IAD
What is the cheapest month to book a flight from Puerto Rico to Washington, D.C. Dulles Intl Airport?
Currently, January is the cheapest month in which you can book a flight from Puerto Rico to Washington, D.C. Dulles Intl Airport (average of $115). Flying from Puerto Rico to Washington, D.C. Dulles Intl Airport in June is currently the most expensive (average of $539). 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 PR to IAD?
Find hourly flight availability from Puerto Rico to Dulles Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 5, 2026.
Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Puerto Rico to Washington, D.C. Dulles Intl Airport as you normally would.
Weekly flight availability from Puerto Rico to Washington, D.C. Dulles Intl Airport
Explore weekly flight availability from Puerto Rico to Dulles Intl. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated November 5, 2026.
The most flights from PR0 to IAD are scheduled on a Monday (4 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (4 on average).
How far ahead should I book a flight from Puerto Rico to Washington, D.C. Dulles Intl Airport?
Booking 9 days in advance of your planned departure date is, on average, the best time to get cheap flights from Puerto Rico to Washington, D.C. Dulles Intl Airport. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
Reviews of airlines servicing Dulles Intl
Get insights into the airlines that provide service to Dulles Intl. 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 Dulles Intl. Reviews last updated November 5, 2026.
Read through reviews of airlines operating flights from Puerto Rico to Washington, D.C. Dulles Intl Airport, such as United Airlines and Frontier. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Overall
7.3
Boarding
7.7
Entertainment
7.1
Comfort
7.3
Food
6.7
Crew
8.1
Reviews
1 / 20
10.0
ExcellentDane,Jan 2026
TYS - IAD
Overall
7.3
Boarding
7.7
Entertainment
7.1
Comfort
7.3
Food
6.7
Crew
8.1
Reviews
1 / 20
10.0
ExcellentDane,Jan 2026
TYS - IAD
Overall
7.3
Boarding
7.7
Entertainment
7.1
Comfort
7.3
Food
6.7
Crew
8.1
Reviews
1 / 20
10.0
ExcellentDane,Jan 2026
TYS - IAD
Related info for your journey
Find useful and relevant information for your journey from Puerto Rico to Dulles Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Washington, D.C. Dulles Intl Airport?
Book flights to Washington, D.C. Dulles Intl Airport if you plan to visit one of these locationsAlexandria
Chantilly
Woodbridge
Arlington
Sterling
Lanham
Reston
Herndon
Hyattsville
Springfield
Fredericksburg
Falls Church
Towson
Silver Spring
Rockville
Oxon Hill
Laurel
Clinton
Hunt Valley
Owings Mills
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
Dulles Intl flight routes
Flights by cabin class
Other flight options
Popular flights
Alternative routes for Puerto Rico to Dulles Intl
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Dulles Intl by adding a car rental and/or hotel reservation to your travel itinerary.
Other flights to Dulles Intl
Explore flights to Dulles Intl departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on November 5, 2026.
Search flights from Puerto Rico to Dulles Intl by cabin class
Find flights from Puerto Rico to Dulles Intl, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Puerto Rico and Dulles Intl flights
Browse other Puerto Rico and Dulles Intl flight options. Last updated on November 5, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 2 airlines flying from Puerto Rico to Dulles Intl
Discover the top 2 airlines that operate flights from Puerto Rico to Dulles Intl. 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 November 5, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$76 | Average$169 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$260 | Average$413 | FlexibilityNo cancel fee | On-time69% |