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Dulles Intl

$104+ 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 2/13. Fares are subject to change and may not be available on all flights or dates of travel.
SJU — IAD
Mar 7 — Mar 141
Sat 3/7
Sat 3/14
1 adult, Economy
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Cheap 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 February 5, 2026.

This Orbitz deal was found by Cheapflights users on 2/2. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/134:17 pm
SJU
-
IAD
Nonstop4h 08m
Frontier
Sat 2/148:20 pm
IAD
-
SJU
Nonstop3h 45m
Frontier
Deal found 2/2$104
This Frontier deal was found by Cheapflights users on 2/2. 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.
Fri 2/274:17 pm
SJU
-
IAD
Nonstop4h 08m
Frontier
Sat 2/288:20 pm
IAD
-
SJU
Nonstop3h 45m
Frontier
Deal found 2/2$118
This Expedia deal was found by Cheapflights users on 2/3. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/274:17 pm
SJU
-
IAD
Nonstop4h 08m
Frontier
Mon 3/28:20 pm
IAD
-
SJU
Nonstop3h 45m
Frontier
Deal found 2/3$124
This Super.com deal was found by Cheapflights users on 2/3. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/144:17 pm
SJU
-
IAD
Nonstop4h 08m
Frontier
Sat 2/218:20 pm
IAD
-
SJU
Nonstop3h 45m
Frontier
Deal found 2/3$132
This Frontier deal was found by Cheapflights users on 2/5. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/134:17 pm
SJU
-
IAD
Nonstop4h 08m
Frontier
Fri 2/208:20 pm
IAD
-
SJU
Nonstop3h 45m
Frontier
Deal found 2/5$142
This Kiwi.com deal was found by Cheapflights users on 2/3. 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.
Fri 2/274:17 pm
SJU
-
IAD
Nonstop4h 08m
Multiple Airlines
Mon 3/27:05 pm
IAD
-
SJU
1 stop22h 53m
Multiple Airlines
Deal found 2/3$149
This Frontier deal was found by Cheapflights users on 2/4. 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.
Fri 2/274:17 pm
SJU
-
IAD
Nonstop4h 08m
Frontier
Tue 3/107:00 am
IAD
-
SJU
1 stop7h 17m
Frontier
Deal found 2/4$153
This FlightHub deal was found by Cheapflights users on 2/3. 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.
Wed 2/185:25 pm
SJU
-
IAD
1 stop17h 00m
Frontier
Mon 2/238:20 pm
IAD
-
SJU
Nonstop3h 45m
Frontier
Deal found 2/3$154
This Frontier deal was found by Cheapflights users on 2/2. 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.
Wed 2/253:53 am
SJU
-
IAD
1 stop6h 32m
Frontier
Mon 3/28:20 pm
IAD
-
SJU
Nonstop3h 45m
Frontier
Deal found 2/2$155
This Kiwi.com deal was found by Cheapflights users on 2/1. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/43:58 am
BQN
-
IAD
1 stop28h 26m
Frontier
Mon 3/168:09 am
IAD
-
BQN
1 stop17h 48m
Frontier
Deal found 2/1$300
This Kiwi.com deal was found by Cheapflights users on 2/3. 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 2/173:59 am
BQN
-
IAD
1 stop30h 26m
Frontier
Sun 2/229:07 pm
IAD
-
BQN
1 stop28h 50m
Frontier
Deal found 2/3$311
This Kiwi.com deal was found by Cheapflights users on 2/1. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/53:42 am
BQN
-
IAD
2 stops11h 36m
Multiple Airlines
Mon 3/168:09 am
IAD
-
BQN
1 stop17h 48m
Multiple Airlines
Deal found 2/1$324

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 February 5, 2026.

Round-trip from

$118
(Frontier)

One-way from

$116
(CheapOair)

Popular in

October

Cheapest in

July

Average price

$250

Good round-trip deal

$243 or less

Good one-way deal

$297 or less
From Puerto Rico to Washington, D.C. Dulles Intl
Search Deals
One-way flight from Puerto Rico to Washington, D.C. Dulles Intl
Search Deals
Highest demand for flights based on searches. 4% potential increase in price ($12 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($3 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
Search Deals
Price to beat on a round-trip flight from Puerto Rico to Washington, D.C. Dulles Intl.
Search Deals
Price to beat on a one-way flight from Puerto Rico to Washington, D.C. Dulles Intl.
Search Deals

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 February 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

Puerto Rico

Fly to

Dulles Intl

Route

Depart

Return

Price

San JuanWashington, D.C.

SJU - IAD

SJUIAD

San Juan Luis Munoz Marin Intl

Fri 3/6

8:30 am-5:30 pm

1 stop10h 00m

Washington, D.C. Dulles Intl

Mon 3/9

5:32 pm-9:22 pm

Nonstop3h 50m

$248

San JuanWashington, D.C.

SJU - IAD

SJUIAD

San Juan Luis Munoz Marin Intl

Thu 2/26

6:15 am-2:45 pm

1 stop9h 30m

Washington, D.C. Dulles Intl

Tue 3/3

12:24 pm-11:56 pm

1 stop10h 32m

$252

San JuanWashington, D.C.

SJU - IAD

SJUIAD

San Juan Luis Munoz Marin Intl

Wed 4/22

5:34 pm-12:42 am

1 stop7h 08m

Washington, D.C. Dulles Intl

Tue 4/28

6:00 am-12:52 pm

1 stop6h 52m

$252

San JuanWashington, D.C.

SJU - IAD

SJUIAD

San Juan Luis Munoz Marin Intl

Thu 2/12

6:15 am-2:45 pm

1 stop9h 30m

Washington, D.C. Dulles Intl

Tue 2/17

6:00 am-5:27 pm

1 stop10h 27m

$252

San JuanWashington, D.C.

SJU - IAD

SJUIAD

San Juan Luis Munoz Marin Intl

Fri 2/13

3:55 pm-12:21 am

1 stop9h 26m

Washington, D.C. Dulles Intl

Tue 2/17

12:35 pm-11:58 pm

1 stop10h 23m

$252

San JuanWashington, D.C.

SJU - IAD

SJUIAD

San Juan Luis Munoz Marin Intl

Thu 2/26

6:37 pm-12:21 am

1 stop6h 44m

Washington, D.C. Dulles Intl

Sun 3/1

12:24 pm-11:59 pm

1 stop10h 35m

$252

San JuanWashington, D.C.

SJU - IAD

SJUIAD

San Juan Luis Munoz Marin Intl

Thu 2/19

8:30 am-5:30 pm

1 stop10h 00m

Washington, D.C. Dulles Intl

Sun 2/22

5:32 pm-10:22 pm

Nonstop3h 50m

$265

AguadillaWashington, D.C.

BQN - IAD

BQNIAD

Aguadilla Borinquen

Tue 3/10

2:42 am-7:20 am

1 stop28h 38m

Washington, D.C. Dulles Intl

Mon 3/16

8:09 am-1:57 am

1 stop17h 48m

$300

San JuanWashington, D.C.

SJU - IAD

SJUIAD

San Juan Luis Munoz Marin Intl

Wed 2/11

7:45 am-4:14 pm

1 stop9h 29m

Washington, D.C. Dulles Intl

Wed 2/18

5:32 pm-10:22 pm

Nonstop3h 50m

$308

AguadillaWashington, D.C.

BQN - IAD

BQNIAD

Aguadilla Borinquen

Tue 2/17

3:59 am-9:25 am

1 stop30h 26m

Washington, D.C. Dulles Intl

Sun 2/22

9:07 pm-2:57 am

1 stop28h 50m

$311

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/3

Showing 1-10 of 54 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, February is the cheapest month in which you can book a flight from Puerto Rico to Washington, D.C. Dulles Intl Airport (average of $57). Flying from Puerto Rico to Washington, D.C. Dulles Intl Airport in September is currently the most expensive (average of $274). 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 February 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 February 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).

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 February 5, 2026.
Read through reviews of airlines operating flights from Puerto Rico to Washington, D.C. Dulles Intl Airport, such as United Airlines, American Airlines, and Frontier. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,241 reviews

Food

6.6

Crew

8.1

Entertainment

7.1

Boarding

7.7

Overall

7.4

Comfort

7.3

Reviews

1 / 20
6.0
Good

Gerry,Jan 2026

YVR - DEN

Seats were uncomfortable. Second leg of my flight on United had much more comfortable seats
United Airlines
7.4
Good
9,241 reviews
United Airlines
7.4
Good
9,241 reviews

Food

6.6

Crew

8.1

Entertainment

7.1

Boarding

7.7

Overall

7.4

Comfort

7.3

Reviews

1 / 20
6.0
Good

Gerry,Jan 2026

YVR - DEN

Seats were uncomfortable. Second leg of my flight on United had much more comfortable seats
American Airlines
7.2
Good
11,237 reviews
United Airlines
7.4
Good
9,241 reviews

Food

6.6

Crew

8.1

Entertainment

7.1

Boarding

7.7

Overall

7.4

Comfort

7.3

Reviews

1 / 20
6.0
Good

Gerry,Jan 2026

YVR - DEN

Seats were uncomfortable. Second leg of my flight on United had much more comfortable seats
Frontier
5.7
Fair
3,053 reviews
United Airlines
7.4
Good
9,241 reviews

Food

6.6

Crew

8.1

Entertainment

7.1

Boarding

7.7

Overall

7.4

Comfort

7.3

Reviews

1 / 20
6.0
Good

Gerry,Jan 2026

YVR - DEN

Seats were uncomfortable. Second leg of my flight on United had much more comfortable seats

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.

  • How long is the flight from Puerto Rico to Washington, D.C. Dulles Intl Airport?

    Departing from Puerto Rico to Washington, D.C. Dulles Intl Airport will take you 9h 30m. Puerto Rico and Washington, D.C. Dulles Intl Airport are separated by a distance of 1573 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines to fly from Puerto Rico to Washington, D.C. Dulles Intl Airport one-way?

    The cheapest airlines for a one-way flight from Puerto Rico to Washington, D.C. Dulles Intl Airport are Frontier ($58), United Airlines ($128), and Delta ($146).

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

    While some choose either Ponce Mercedita - Washington, D.C. Dulles Intl or Aguadilla Borinquen - Washington, D.C. Dulles Intl, San Juan Luis Munoz Marin Intl - Washington, D.C. Dulles Intl is the most popular route 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 (89%), United Airlines (89%), Frontier (62%).

  • 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 $76. On average you can expect to pay $678. The most popular route, (San Juan Luis Munoz Marin Intl - Washington, D.C. Dulles Intl), can usually be booked for $173.

  • 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, February is the cheapest month in which you can book a flight from Puerto Rico to Washington, D.C. Dulles Intl Airport (average of $57). Flying from Puerto Rico to Washington, D.C. Dulles Intl Airport in September is currently the most expensive (average of $274). 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
Alexandria
Woodbridge
Tysons
Arlington
Owings Mills
Springfield
Silver Spring
Herndon
Fredericksburg
Hanover
Linthicum Heights
Rockville
Laurel
Towson
Upper Marlboro
Manassas
Largo
Bowie
McLean
Clinton

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.
Luis Munoz Marin Intl to Dulles Intl flights
Luis Munoz Marin Intl to Baltimore flights
Luis Munoz Marin Intl to Reagan-National flights
Punta Cana to Dulles Intl flights
Montego Bay to Baltimore flights
Santo Domingo to Dulles Intl flights
Port of Spain to Dulles Intl flights
Kingston to Baltimore flights
Kingston to Dulles Intl flights
Oranjestad to Dulles Intl flights
Santo Domingo to Reagan-National flights
Montego Bay to Dulles Intl flights
Punta Cana to Baltimore flights
Nassau to Reagan-National flights
Nassau to Dulles Intl flights
Port of Spain to Reagan-National flights
Kingston to Reagan-National flights
Santo Domingo to Baltimore flights
Nassau to Baltimore flights
Punta Cana to Reagan-National flights
Port of Spain to Baltimore flights
Saint Thomas Island to Dulles Intl flights
Simpson Bay to Dulles Intl flights
Oranjestad to Baltimore flights
Montego Bay to Reagan-National flights
George Town to Dulles Intl flights
Simpson Bay to Baltimore flights
Simpson Bay to Reagan-National flights
Saint Thomas Island to Baltimore flights
Oranjestad to Reagan-National flights
Santiago de los Caballeros to Baltimore flights
Santiago de los Caballeros to Reagan-National flights
Santiago de los Caballeros to Dulles Intl flights
George Town to Reagan-National flights
Christiansted to Dulles Intl flights
George Town to Baltimore flights
Bridgetown to Reagan-National flights
Bridgetown to Dulles Intl flights
Aguadilla to Reagan-National flights
Ponce to Dulles Intl flights
Freeport to Dulles Intl flights
Castries to Baltimore flights
Castries to Reagan-National flights
Saint Thomas Island to Reagan-National flights
Providenciales to Dulles Intl flights
Christiansted to Reagan-National flights
Willemstad to Dulles Intl flights
Christiansted to Baltimore flights
St. John's to Reagan-National flights

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 February 5, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$67Average$172FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$198Average$446FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$242Average$450FlexibilityNo cancel feeOn-time71%

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