Dulles Intl

$112+ Cheap flights from Puerto Rico to Dulles Intl (IAD)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/6. Fares are subject to change and may not be available on all flights or dates of travel.
SJU — IAD
Aug 22 — Aug 291
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Cheap 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 August 17, 2025.

Round-trip from

$190
(American Airlines)

One-way from

$112
(Cheapflightsfares)

Popular in

October

Cheapest in

July

Average price

$324

Good round-trip deal

$212 or less

Good one-way deal

$133 or less
From Puerto Rico to Washington, D.C. Dulles Intl
One-way flight from Puerto Rico to Washington, D.C. Dulles Intl
Highest demand for flights based on searches. 14% potential increase in price ($50 potential increase over avg. RT price).
Cheapest flight prices on average. 2% potential price decrease ($7 potential savings vs. average RT price).
Average for round-trip flights in August 2025
Price to beat on a round-trip flight from Puerto Rico to Washington, D.C. Dulles Intl.
Price to beat on a one-way flight from Puerto Rico to Washington, D.C. Dulles Intl.

Find flight deals from Puerto Rico to Dulles Intl

Cheapest flights from Puerto Rico to Dulles Intl
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 August 17, 2025.

This American Airlines deal was found by Cheapflights users on 8/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/217:45 amSJU - IAD
1 stop11h 09mAmerican Airlines
Tue 10/288:09 amIAD - SJU
1 stop14h 01mAmerican Airlines
Deal found 8/16$190
This American Airlines deal was found by Cheapflights users on 8/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/93:50 pmSJU - IAD
1 stop8h 03mAmerican Airlines
Thu 10/165:06 amIAD - SJU
1 stop9h 49mAmerican Airlines
Deal found 8/16$191
This American Airlines deal was found by Cheapflights users on 8/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/237:10 amSJU - IAD
1 stop16h 43mAmerican Airlines
Mon 10/279:19 amIAD - SJU
1 stop14h 35mAmerican Airlines
Deal found 8/15$194
This Cheapflightsfares deal was found by Cheapflights users on 8/16. Clicking the “Pick Dates” 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 10/94:26 pmSJU - IAD
Nonstop3h 56mFrontier
Sun 10/129:07 pmIAD - SJU
Nonstop3h 52mFrontier
Deal found 8/16$200
This American Airlines deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/307:45 amSJU - IAD
1 stop11h 09mAmerican Airlines
Tue 11/411:25 amIAD - SJU
1 stop8h 23mAmerican Airlines
Deal found 8/14$205
This United Airlines deal was found by Cheapflights users on 8/15. Clicking the “Pick Dates” 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 10/224:55 pmSJU - IAD
Nonstop3h 57mUnited Airlines
Mon 10/275:32 pmIAD - SJU
Nonstop3h 50mUnited Airlines
Deal found 8/15$206
This Cheapflightsfares deal was found by Cheapflights users on 8/16. Clicking the “Pick Dates” 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 10/94:26 pmSJU - IAD
Nonstop3h 56mFrontier
Thu 10/239:07 pmIAD - SJU
Nonstop3h 52mFrontier
Deal found 8/16$207
This American Airlines deal was found by Cheapflights users on 8/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/68:00 amSJU - IAD
1 stop6h 12mAmerican Airlines
Mon 11/107:59 amIAD - SJU
1 stop8h 06mAmerican Airlines
Deal found 8/15$210
This Cheapflightsfares deal was found by Cheapflights users on 8/15. Clicking the “Pick Dates” 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 11/63:45 pmSJU - IAD
Nonstop3h 56mFrontier
Sun 11/97:26 pmIAD - SJU
Nonstop3h 52mFrontier
Deal found 8/15$212
This Priceline deal was found by Cheapflights users on 8/15. Clicking the “Pick Dates” 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.
Wed 8/273:43 amBQN - IAD
1 stop17h 05mFrontier
Mon 9/19:33 pmIAD - BQN
1 stop29h 15mFrontier
Deal found 8/15$265
This FlightHub deal was found by Cheapflights users on 8/15. Clicking the “Pick Dates” 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.
Wed 9/33:32 amBQN - IAD
1 stop14h 52mFrontier
Fri 9/57:14 pmIAD - BQN
1 stop7h 13mFrontier
Deal found 8/15$281
This CheapOair deal was found by Cheapflights users on 8/15. Clicking the “Pick Dates” 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.
Thu 8/2810:14 amPSE - IAD
1 stop10h 34mFrontier
Thu 9/117:14 pmIAD - PSE
1 stop14h 16mFrontier
Deal found 8/15$284

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 2,558,603 searches. Data last updated August 17, 2025.
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

Puerto Rico

Fly to

Dulles Intl

Route

Depart

Return

Price

San JuanWashington, D.C.

SJU - IAD

SJUIAD

San Juan Luis Munoz Marin Intl

Wed 10/22

7:45 am-6:54 pm

1 stop11h 09m

Washington, D.C. Dulles Intl

Tue 10/28

8:09 am-10:10 pm

1 stop14h 01m

$190

San JuanWashington, D.C.

SJU - IAD

SJUIAD

San Juan Luis Munoz Marin Intl

Thu 10/23

7:10 am-11:53 pm

1 stop16h 43m

Washington, D.C. Dulles Intl

Mon 10/27

6:34 am-2:55 pm

1 stop8h 21m

$195

San JuanWashington, D.C.

SJU - IAD

SJUIAD

San Juan Luis Munoz Marin Intl

Thu 10/30

7:45 am-6:54 pm

1 stop11h 09m

Washington, D.C. Dulles Intl

Tue 11/4

11:25 am-8:48 pm

1 stop8h 23m

$205

San JuanWashington, D.C.

SJU - IAD

SJUIAD

San Juan Luis Munoz Marin Intl

Mon 11/3

3:05 pm-11:07 pm

1 stop9h 02m

Washington, D.C. Dulles Intl

Mon 11/10

7:59 am-5:05 pm

1 stop8h 06m

$205

San JuanWashington, D.C.

SJU - IAD

SJUIAD

San Juan Luis Munoz Marin Intl

Wed 10/22

4:55 pm-8:52 pm

Nonstop3h 57m

Washington, D.C. Dulles Intl

Mon 10/27

5:32 pm-9:22 pm

Nonstop3h 50m

$206

San JuanWashington, D.C.

SJU - IAD

SJUIAD

San Juan Luis Munoz Marin Intl

Thu 11/6

8:30 am-11:35 am

Nonstop4h 05m

Washington, D.C. Dulles Intl

Mon 11/10

5:32 pm-10:22 pm

Nonstop3h 50m

$206

San JuanWashington, D.C.

SJU - IAD

SJUIAD

San Juan Luis Munoz Marin Intl

Thu 10/9

4:26 pm-8:22 pm

Nonstop3h 56m

Washington, D.C. Dulles Intl

Thu 10/23

9:07 pm-12:59 am

Nonstop3h 52m

$207

San JuanWashington, D.C.

SJU - IAD

SJUIAD

San Juan Luis Munoz Marin Intl

Thu 11/6

8:00 am-1:12 pm

1 stop6h 12m

Washington, D.C. Dulles Intl

Mon 11/10

7:59 am-5:05 pm

1 stop8h 06m

$210

AguadillaWashington, D.C.

BQN - IAD

BQNIAD

Aguadilla Borinquen

Wed 8/27

3:43 am-8:48 pm

1 stop17h 05m

Washington, D.C. Dulles Intl

Mon 9/1

9:33 pm-2:48 am

1 stop29h 15m

$265

AguadillaWashington, D.C.

BQN - IAD

BQNIAD

Aguadilla Borinquen

Wed 9/3

3:32 am-6:24 pm

1 stop14h 52m

Washington, D.C. Dulles Intl

Fri 9/5

7:14 pm-2:27 am

1 stop7h 13m

$281

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/15

Showing 1-10 of 49 results
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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.
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

What is the cheapest month to book a flight from Puerto Rico to Washington, D.C. Dulles Intl Airport?

Currently, July is the cheapest month in which you can book a flight from Puerto Rico to Washington, D.C. Dulles Intl Airport (average of $302). Flying from Puerto Rico to Washington, D.C. Dulles Intl Airport in April is currently the most expensive (average of $337). 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 August 17, 2025.

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.

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 August 17, 2025.
Read through reviews of airlines operating flights from Puerto Rico to Washington, D.C. Dulles Intl Airport, such as Delta, United Airlines, and Frontier. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
8.0
Very good

Comfort

7.9

Crew

8.5

Boarding

8.2

Entertainment

7.9

Overall

8.0

Food

7.3

Reviews

1 / 20
6.0
Good

Morgan Rae,Aug 2025

BRU - JFK

Typically I choose delta because they do a great job but this time the flight attendant in my zone was very rude and didnt offer the same treatment as she did to others
8.0
Very good
8.0
Very good

Comfort

7.9

Crew

8.5

Boarding

8.2

Entertainment

7.9

Overall

8.0

Food

7.3

Reviews

1 / 20
6.0
Good

Morgan Rae,Aug 2025

BRU - JFK

Typically I choose delta because they do a great job but this time the flight attendant in my zone was very rude and didnt offer the same treatment as she did to others
8.0
Very good

Comfort

7.9

Crew

8.5

Boarding

8.2

Entertainment

7.9

Overall

8.0

Food

7.3

Reviews

1 / 20
6.0
Good

Morgan Rae,Aug 2025

BRU - JFK

Typically I choose delta because they do a great job but this time the flight attendant in my zone was very rude and didnt offer the same treatment as she did to others
8.0
Very good

Comfort

7.9

Crew

8.5

Boarding

8.2

Entertainment

7.9

Overall

8.0

Food

7.3

Reviews

1 / 20
6.0
Good

Morgan Rae,Aug 2025

BRU - JFK

Typically I choose delta because they do a great job but this time the flight attendant in my zone was very rude and didnt offer the same treatment as she did to others

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.
  • What are the most popular routes from Puerto Rico to Washington, D.C. Dulles Intl Airport?

  • What are the most reliable airlines from Puerto Rico to Washington, D.C. Dulles Intl Airport?

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Puerto Rico to Washington, D.C. Dulles Intl Airport on time: Air Canada (86%), United Airlines (86%), Frontier (81%).

  • What are the cheapest flights from Puerto Rico to Washington, D.C. Dulles Intl Airport?

    The cheapest flight price from Puerto Rico to Washington, D.C. Dulles Intl Airport is $109. On average you can expect to pay $517. The most popular route, (San Juan Luis Munoz Marin Intl - Washington, D.C. Dulles Intl), can usually be booked for $167.

  • Can I find deals for flights from Puerto Rico to Dulles Intl that include hotel bookings?

    Yes. In addition to deals on Puerto Rico to Dulles Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Puerto Rico to Dulles Intl?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Puerto Rico to Dulles Intl.

  • Can I find deals for business class flights from Puerto Rico to Dulles Intl?

    Yes. Cheapflights offers flight deals from Puerto Rico to Dulles Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Puerto Rico to Washington, D.C. Dulles Intl Airport?

    Currently, July is the cheapest month in which you can book a flight from Puerto Rico to Washington, D.C. Dulles Intl Airport (average of $302). Flying from Puerto Rico to Washington, D.C. Dulles Intl Airport in April is currently the most expensive (average of $337). 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.

See more FAQs

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 locations
Woodbridge
Arlington
Alexandria
Tysons
Silver Spring
Springfield
Fredericksburg
Gaithersburg
Towson
Linthicum Heights
Fairfax
Manassas
Falls Church
Laurel
Rockville
Oxon Hill
National Harbor
Dundalk
Waldorf
Bowie

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Puerto Rico to Dulles Intl

See prices for flight routes from nearby airports that may be better suited for you.

Top 3 airlines flying from Puerto Rico to Dulles Intl

Discover the top 3 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 2,558,603 searches. Data last updated August 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$99Average$246FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$250Average$505FlexibilityNo cancel feeOn-time69%
DeltaCheapest$269Average$431FlexibilityNo cancel feeOn-timeN/A

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