$133+ Cheap flights from Dulles Intl (IAD) to Luis Munoz Marin Intl (SJU)
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 12/2. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — SJU
Dec 8 — Dec 151
Round-trip
1 adult, Economy
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Find cheap flights from Dulles Intl to Luis Munoz Marin 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.Cheapflights Tip: The best prices from Washington, D.C. Dulles Intl to San Juan Luis Munoz Marin Intl are usually found in February or January, booked 57 days in advance, depart on a Monday or Sunday and return on a Thursday
Cheap flight deals from Dulles Intl to Luis Munoz Marin Intl
Cheapest
Best
Last-minute
One-way
Cheapest flights from Dulles Intl to Luis Munoz Marin IntlExplore the most affordable flight options available from Dulles Intl to Luis Munoz Marin Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 8, 2026.
Explore the most affordable flight options available from Dulles Intl to Luis Munoz Marin Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 8, 2026.
This Justfly.com 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/209:35 pm -
1 stop27h 49m
Mon 11/238:53 am -
Nonstop4h 17m
Deal found 11/5![Frontier logo]()
$246
This Mytrip deal was found by Cheapflights users on 11/7. Clicking the “Pick Dates” 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.
Fri 12/410:33 pm -
2 stops26h 25m
Wed 12/95:01 am -
1 stop10h 48m
Deal found 11/7![Frontier logo]()
$247
This Kiwi.com deal was found by Cheapflights users on 11/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/1111:16 am -
1 stop14h 30m
Mon 12/73:28 am -
1 stop7h 39m
Deal found 11/6![Frontier logo]()
$248
This Frontier deal was found by Cheapflights users on 11/6. Clicking the “Pick Dates” 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 11/131:54 pm -
1 stop9h 05m
Sat 12/511:48 am -
1 stop9h 40m
Deal found 11/6![Frontier logo]()
$249
This FlightHub 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/148:26 pm -
1 stop28h 47m
Fri 12/186:00 am -
1 stop17h 14m
Deal found 11/4![Frontier logo]()
$250
This Cheapflightsfares deal was found by Cheapflights users on 11/6. Clicking the “Pick Dates” 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 12/53:34 pm -
1 stop28h 03m
Sat 12/126:25 am -
1 stop16h 25m
Deal found 11/6![Frontier logo]()
$251
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.
Fri 11/131:54 pm -
1 stop27h 07m
Fri 11/208:53 am -
Nonstop4h 17m
Deal found 11/4![Frontier logo]()
$252
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.
Thu 12/103:34 pm -
1 stop28h 03m
Sun 12/208:40 am -
Nonstop4h 03m
Deal found 11/4![Frontier logo]()
$253
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.
Thu 12/310:22 pm -
2 stops26h 36m
Wed 12/93:28 am -
1 stop7h 39m
Deal found 11/3![Frontier logo]()
$254
This Cheapflightsfares 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/136:07 pm -
1 stop27h 47m
Tue 11/173:55 pm -
1 stop8h 48m
Deal found 11/3![Frontier logo]()
$255
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.
Sun 11/221:05 pm -
Nonstop3h 47m
Wed 11/258:53 am -
Nonstop4h 17m
Deal found 11/5![Frontier logo]()
$256
This Frontier 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/219:35 pm -
1 stop11h 24m
Wed 1/133:59 am -
1 stop7h 10m
Deal found 11/4![Frontier logo]()
$257
Best flights from Dulles Intl to Luis Munoz Marin IntlDiscover carefully curated flight deals from Dulles Intl to Luis Munoz Marin Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated November 8, 2026.
Discover carefully curated flight deals from Dulles Intl to Luis Munoz Marin Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated November 8, 2026.
This United Airlines deal was found by Cheapflights users on 11/6. Clicking the “Pick Dates” 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 12/115:29 pm -
Nonstop3h 53m
Tue 12/155:50 pm -
Nonstop4h 06m
Deal found 11/6![United Airlines logo]()
$397
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 12/15:29 pm -
Nonstop3h 53m
Tue 12/88:05 am -
Nonstop4h 04m
Deal found 11/3![United Airlines logo]()
$397
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.
Tue 12/810:10 am -
1 stop9h 50m
Sat 12/128:05 am -
Nonstop4h 04m
Deal found 11/4![United Airlines logo]()
$402
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/15:29 pm -
Nonstop3h 53m
Fri 12/47:40 am -
1 stop11h 43m
Deal found 11/5![United Airlines logo]()
$402
This United Airlines deal was found by Cheapflights users on 11/7. Clicking the “Pick Dates” 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 -
1 stop7h 40m
Tue 1/268:05 am -
Nonstop4h 04m
Deal found 11/7![United Airlines logo]()
$402
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/145:29 pm -
Nonstop3h 53m
Wed 11/185:50 pm -
Nonstop4h 06m
Deal found 11/5![United Airlines logo]()
$437
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/125:29 pm -
Nonstop3h 53m
Wed 11/185:50 pm -
Nonstop4h 06m
Deal found 11/5![United Airlines logo]()
$437
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.
Mon 12/145:29 pm -
Nonstop3h 53m
Thu 12/175:50 pm -
Nonstop4h 06m
Deal found 11/3![United Airlines logo]()
$453
This United Airlines deal was found by Cheapflights users on 11/7. Clicking the “Pick Dates” 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 12/145:29 pm -
Nonstop3h 53m
Sun 12/208:05 am -
Nonstop4h 04m
Deal found 11/7![United Airlines logo]()
$473
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 12/98:22 am -
Nonstop3h 53m
Mon 12/145:50 pm -
Nonstop4h 06m
Deal found 11/3![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.
Sat 12/55:29 pm -
Nonstop3h 53m
Wed 12/97:40 am -
1 stop9h 24m
Deal found 11/3![United Airlines logo]()
$482
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 1/1412:47 pm -
2 stops10h 49m
Fri 1/222:05 am -
2 stops14h 55m
Deal found 11/3![United Airlines logo]()
$486
Last-minute flights from Dulles Intl to Luis Munoz Marin IntlDiscover last-minute flight deals from Dulles Intl to Luis Munoz Marin Intl. Data last updated November 8, 2026 and is based on user searches.
Discover last-minute flight deals from Dulles Intl to Luis Munoz Marin Intl. Data last updated November 8, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 11/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/1111:16 am -
1 stop14h 30m
Mon 12/73:28 am -
1 stop7h 39m
Deal found 11/6![Frontier logo]()
$248
This Frontier deal was found by Cheapflights users on 11/6. Clicking the “Pick Dates” 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 11/131:54 pm -
1 stop9h 05m
Sat 12/53:28 am -
1 stop7h 39m
Deal found 11/6![Frontier logo]()
$249
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.
Fri 11/131:54 pm -
1 stop27h 07m
Fri 11/208:53 am -
Nonstop4h 17m
Deal found 11/4![Frontier logo]()
$252
This Cheapflightsfares 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/136:07 pm -
1 stop27h 47m
Tue 11/173:55 pm -
1 stop8h 48m
Deal found 11/3![Frontier logo]()
$255
This Justfly.com 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/209:35 pm -
1 stop27h 49m
Mon 11/238:53 am -
Nonstop4h 17m
Deal found 11/5![Frontier logo]()
$246
This Frontier 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/219:35 pm -
1 stop11h 24m
Wed 1/133:59 am -
1 stop7h 10m
Deal found 11/4![Frontier logo]()
$257
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.
Sun 11/221:05 pm -
Nonstop3h 47m
Wed 11/258:53 am -
Nonstop4h 17m
Deal found 11/5![Frontier logo]()
$256
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.
Thu 12/310:22 pm -
2 stops26h 36m
Wed 12/93:28 am -
1 stop7h 39m
Deal found 11/3![Frontier logo]()
$254
This Mytrip deal was found by Cheapflights users on 11/7. Clicking the “Pick Dates” 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.
Fri 12/410:33 pm -
2 stops26h 25m
Wed 12/95:01 am -
1 stop10h 48m
Deal found 11/7![Frontier logo]()
$247
This Cheapflightsfares deal was found by Cheapflights users on 11/6. Clicking the “Pick Dates” 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 12/53:34 pm -
1 stop28h 03m
Sat 12/126:25 am -
1 stop16h 25m
Deal found 11/6![Frontier logo]()
$251
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.
Thu 12/103:34 pm -
1 stop28h 03m
Sun 12/208:40 am -
Nonstop4h 03m
Deal found 11/4![Frontier logo]()
$253
This FlightHub 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/148:26 pm -
1 stop28h 47m
Fri 12/186:00 am -
1 stop17h 14m
Deal found 11/4![Frontier logo]()
$250
One-way flights from Dulles Intl to Luis Munoz Marin IntlSearch for one-way flight options from Dulles Intl to Luis Munoz Marin Intl. Find affordable one-way fares based on user searches. Data last updated November 8, 2026.
Search for one-way flight options from Dulles Intl to Luis Munoz Marin Intl. Find affordable one-way fares based on user searches. Data last updated November 8, 2026.
This Mytrip 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 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
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/4![Frontier logo]()
$133
This Super.com 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 Super.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
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/5![Frontier logo]()
$134
This CheapOair deal was found by Cheapflights users on 11/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/166:07 pm -
1 stop20h 12m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/6![Frontier logo]()
$135
This Super.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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/262:10 pm -
1 stop27h 28m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/4![Frontier logo]()
$137
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.
Wed 11/1111:16 am -
1 stop14h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/5![Frontier logo]()
$138
This CheapOair 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/219:35 pm -
1 stop27h 49m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/4![Frontier logo]()
$139
This Super.com deal was found by Cheapflights users on 11/7. Clicking the “Pick Dates” 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 11/156:07 pm -
1 stop18h 18m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/7![Frontier logo]()
$140
This CheapOair deal was found by Cheapflights users on 11/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/209:35 pm -
1 stop24h 43m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/6![Frontier logo]()
$141
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/147:00 am -
1 stop13h 12m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/4![American Airlines logo]()
$142
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.
Wed 12/309:44 pm -
2 stops16h 04m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/3![Frontier logo]()
$143
Find flight deals from Dulles Intl to Luis Munoz Marin Intl
Discover tips and strategies to find the most affordable flight options for your journey from Dulles Intl (IAD) to Luis Munoz Marin Intl (SJU). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated November 8, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $246 (Justfly.com) |
One-way from | $133 (Mytrip) |
Popular in | July |
Cheapest in | February |
Average price | $444 |
Good round-trip deal | $384 or less |
Good one-way deal | $195 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Dulles Intl to Luis Munoz Marin 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 8, 2026.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to San Juan Luis Munoz Marin Intl Airport that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest 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
Sun 12/6
10:35 pm-8:37 pm
2 stops21h 02m
San Juan Luis Munoz Marin Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$153
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
$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
Wed 11/18
5:29 pm-10:22 pm
Nonstop3h 53m
San Juan Luis Munoz Marin Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$199
Washington, D.C.San Juan
IAD Washington, D.C. Dulles Intl - SJU San Juan Luis Munoz Marin Intl
IADSJU
Washington, D.C. Dulles Intl
Sun 12/6
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
$199
Washington, D.C.San Juan
IAD Washington, D.C. Dulles Intl - SJU San Juan Luis Munoz Marin Intl
IADSJU
Washington, D.C. Dulles Intl
Sat 12/5
5:29 pm-10:22 pm
Nonstop3h 53m
San Juan Luis Munoz Marin Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$199
Washington, D.C.San Juan
IAD Washington, D.C. Dulles Intl - SJU San Juan Luis Munoz Marin Intl
IADSJU
Washington, D.C. Dulles Intl
Sat 12/12
5:29 pm-10:22 pm
Nonstop3h 53m
San Juan Luis Munoz Marin Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$199
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 12/1
12:35 pm-11:58 pm
1 stop10h 23m
San Juan Luis Munoz Marin Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$223
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 1/4
8:15 am-12:36 am
2 stops15h 21m
San Juan Luis Munoz Marin Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$229
Washington, D.C.San Juan
IAD Washington, D.C. Dulles Intl - SJU San Juan Luis Munoz Marin Intl
IADSJU
Washington, D.C. Dulles Intl
Sat 1/2
12:53 pm-12:36 am
2 stops10h 43m
San Juan Luis Munoz Marin Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$229
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 2/1
5:29 pm-10:22 pm
Nonstop3h 53m
San Juan Luis Munoz Marin Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$249
Showing 1-10 of 22 resultsSorted by cheapest first
Compare providers for flights from Dulles Intl to Luis Munoz Marin Intl
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Dulles Intl to Luis Munoz Marin Intl in November.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Washington, D.C. Dulles Intl Airport-San Juan Luis Munoz Marin Intl Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Washington, D.C. Dulles Intl Airport-San Juan Luis Munoz Marin Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Washington, D.C. Dulles Intl Airport-San Juan Luis Munoz Marin Intl Airport flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Washington, D.C. Dulles Intl Airport-San Juan Luis Munoz Marin Intl Airport flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Washington, D.C. Dulles Intl Airport-San Juan Luis Munoz Marin Intl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Dulles Intl to Luis Munoz Marin Intl
Have a flexible travel schedule? Discover the best time to fly to Luis Munoz Marin Intl from Dulles Intl with our price prediction graph.
IAD-SJU
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Washington, D.C. Dulles Intl Airport to San Juan Luis Munoz Marin Intl Airport
Prices
Airlines
Delays
How far ahead should I book a flight from Washington, D.C. Dulles Intl Airport to San Juan Luis Munoz Marin Intl Airport?
The best time to book flights from Washington, D.C. Dulles Intl Airport to San Juan Luis Munoz Marin Intl Airport 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 month to book a flight from Washington, D.C. Dulles Intl Airport to San Juan Luis Munoz Marin Intl Airport?
Currently, February is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to San Juan Luis Munoz Marin Intl Airport (average of $323). Flying from Washington, D.C. Dulles Intl Airport to San Juan Luis Munoz Marin Intl Airport 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 SJU?
Find hourly flight availability from Dulles Intl to Luis Munoz Marin 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 8, 2026.
It’s typically best to fly out from Washington, D.C. Dulles Intl Airport to San Juan Luis Munoz Marin Intl Airport in the evening. Doing so could potentially save you 42% on the flight price compared to flying in the morning, which is usually more expensive.
What is the cheapest day to fly from Washington, D.C. Dulles Intl Airport to San Juan Luis Munoz Marin Intl Airport?
Use this chart to determine the cheapest time to fly round-trip from Dulles Intl to Luis Munoz Marin Intl. Price data was last updated on October 31, 2026.
Travelers seeking maximum savings on their Washington, D.C. Dulles Intl Airport to San Juan Luis Munoz Marin Intl Airport flight should consider departing on Monday 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.
How often are flights from Washington, D.C. to San Juan delayed?
About 20% of weekly flights between Washington, D.C. and San Juan 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 San Juan 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 San Juan flights?
Over the last year, United Airlines have had the lowest number of delays on this route, with just 19% of flights being delayed.
The best insider tips for Washington, D.C. Dulles Intl Airport to San Juan Luis Munoz Marin Intl Airport flights
AI-powered summary based on content written by travel experts. AI can make mistakes.
Cheapflights partnered with top experts to bring you the best recommendations for your Washington, D.C. Dulles Intl Airport to San Juan Luis Munoz Marin Intl Airport trip
Our travel experts
Reviews of airlines servicing Luis Munoz Marin Intl
Get insights into the airlines that provide service to Luis Munoz Marin 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 Luis Munoz Marin Intl. Reviews last updated November 8, 2026.
See what other customers who have flown with Delta,United Airlines, andJetBlue from Washington, D.C. Dulles Intl Airport to San Juan Luis Munoz Marin Intl Airport have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Food
7.2
Comfort
7.8
Entertainment
7.8
Overall
7.8
Boarding
8.1
Crew
8.5
Reviews
1 / 20
6.0
GoodEllen,Oct 2026
GRR - ATL
Food
7.2
Comfort
7.8
Entertainment
7.8
Overall
7.8
Boarding
8.1
Crew
8.5
Reviews
1 / 20
6.0
GoodEllen,Oct 2026
GRR - ATL
Food
7.2
Comfort
7.8
Entertainment
7.8
Overall
7.8
Boarding
8.1
Crew
8.5
Reviews
1 / 20
6.0
GoodEllen,Oct 2026
GRR - ATL
Food
7.2
Comfort
7.8
Entertainment
7.8
Overall
7.8
Boarding
8.1
Crew
8.5
Reviews
1 / 20
6.0
GoodEllen,Oct 2026
GRR - ATL
Food
7.2
Comfort
7.8
Entertainment
7.8
Overall
7.8
Boarding
8.1
Crew
8.5
Reviews
1 / 20
6.0
GoodEllen,Oct 2026
GRR - ATL
Food
7.2
Comfort
7.8
Entertainment
7.8
Overall
7.8
Boarding
8.1
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 Luis Munoz Marin 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 San Juan Luis Munoz Marin Intl Airport?
Book flights to San Juan Luis Munoz Marin Intl Airport if you plan to visit one of these locationsLuquillo
Rio Grande
Fajardo
Dorado
Humacao
Bayamón
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Other flights to Luis Munoz Marin Intl
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Dulles Intl and Luis Munoz Marin Intl flights
Browse other Dulles Intl and Luis Munoz Marin Intl flight options. Last updated on November 8, 2026.
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Browse through other flights departing from Dulles Intl. Flights are based on user searches made on Cheapflights and were last updated on November 8, 2026.
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Top 5 airlines flying from Dulles Intl to Luis Munoz Marin Intl
Discover the top 5 airlines that operate flights from Dulles Intl to Luis Munoz Marin 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 8, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$81 | Average$315 | 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$273 | Average$495 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$301 | Average$438 | FlexibilityNo cancel fee | On-time71% |