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Dulles Intl

$91+ 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 3/7. Fares are subject to change and may not be available on all flights or dates of travel.
SJU — IAD
Jan 9 — Jan 161
Fri 1/9
Fri 1/16
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 December 10, 2025.

This CheapOair deal was found by Cheapflights users on 12/9. 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 12/193:55 amSJU - IAD
1 stop18h 35mFrontier
Sun 1/48:26 pmIAD - SJU
Nonstop3h 54mFrontier
Deal found 12/9$168
This Super.com deal was found by Cheapflights users on 12/8. 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.
Mon 12/224:18 pmSJU - IAD
Nonstop4h 13mFrontier
Mon 12/292:09 pmIAD - SJU
1 stop11h 30mFrontier
Deal found 12/8$176
This Priceline deal was found by Cheapflights users on 12/8. 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.
Sat 12/204:18 pmSJU - IAD
Nonstop4h 13mFrontier
Tue 12/309:58 pmIAD - SJU
1 stop17h 01mFrontier
Deal found 12/8$179
This Frontier deal was found by Cheapflights users on 12/9. 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.
Tue 12/234:07 pmSJU - IAD
Nonstop4h 13mFrontier
Sat 1/38:26 pmIAD - SJU
Nonstop3h 54mFrontier
Deal found 12/9$182
This Frontier deal was found by Cheapflights users on 12/8. 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 12/227:25 amSJU - IAD
1 stop11h 51mFrontier
Sat 1/38:26 pmIAD - SJU
Nonstop3h 54mFrontier
Deal found 12/8$185
This Mytrip deal was found by Cheapflights users on 12/8. 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 12/234:07 pmSJU - IAD
Nonstop4h 13mFrontier
Tue 12/305:37 pmIAD - SJU
1 stop6h 57mFrontier
Deal found 12/8$189
This Frontier deal was found by Cheapflights users on 12/9. 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.
Tue 12/234:07 pmSJU - IAD
Nonstop4h 13mFrontier
Fri 1/28:26 pmIAD - SJU
Nonstop3h 54mFrontier
Deal found 12/9$190
This Super.com deal was found by Cheapflights users on 12/7. 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.
Thu 12/116:30 amSJU - IAD
Nonstop4h 13mFrontier
Mon 1/127:19 pmIAD - SJU
Nonstop3h 54mFrontier
Deal found 12/7$191
This CheapOair deal was found by Cheapflights users on 12/8. 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 12/2212:29 pmPSE - IAD
1 stop9h 34mFrontier
Mon 12/299:58 pmIAD - PSE
1 stop12h 36mFrontier
Deal found 12/8$265
This CheapOair deal was found by Cheapflights users on 12/8. 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.
Tue 12/2312:29 pmPSE - IAD
1 stop9h 34mFrontier
Tue 12/309:58 pmIAD - PSE
1 stop12h 36mFrontier
Deal found 12/8$276
This CheapOair deal was found by Cheapflights users on 12/8. 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 12/1812:29 pmPSE - IAD
1 stop28h 17mFrontier
Mon 12/229:58 pmIAD - PSE
1 stop12h 36mFrontier
Deal found 12/8$285
This CheapOair deal was found by Cheapflights users on 12/8. 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 12/2011:54 amPSE - IAD
1 stop10h 36mFrontier
Tue 12/309:58 pmIAD - PSE
1 stop12h 36mFrontier
Deal found 12/8$327

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 December 10, 2025.

Round-trip from

$168
(CheapOair)

One-way from

$91
(CheapOair)

Popular in

March

Cheapest in

July

Average price

$298

Good round-trip deal

$270 or less

Good one-way deal

$127 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. 1% potential increase in price ($5 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($4 potential savings vs. average RT price).
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Average for round-trip flights in December 2025
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Price to beat on a round-trip flight from Puerto Rico to Washington, D.C. Dulles Intl.
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Price to beat on a one-way flight from Puerto Rico to Washington, D.C. Dulles Intl.
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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 December 10, 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

Thu 1/15

8:10 am-11:15 am

Nonstop4h 05m

Washington, D.C. Dulles Intl

Mon 1/19

5:32 pm-10:22 pm

Nonstop3h 50m

$216

San JuanWashington, D.C.

SJU - IAD

SJUIAD

San Juan Luis Munoz Marin Intl

Thu 12/25

6:30 am-12:13 pm

1 stop6h 43m

Washington, D.C. Dulles Intl

Thu 1/1

5:06 pm-2:27 am

1 stop8h 21m

$251

San JuanWashington, D.C.

SJU - IAD

SJUIAD

San Juan Luis Munoz Marin Intl

Wed 1/21

6:27 pm-12:24 am

1 stop6h 57m

Washington, D.C. Dulles Intl

Sun 1/25

3:42 pm-11:45 pm

1 stop7h 03m

$251

PonceWashington, D.C.

PSE - IAD

PSEIAD

Ponce Mercedita

Mon 12/22

12:29 pm-9:03 pm

1 stop9h 34m

Washington, D.C. Dulles Intl

Mon 12/29

9:58 pm-11:34 am

1 stop12h 36m

$265

San JuanWashington, D.C.

SJU - IAD

SJUIAD

San Juan Luis Munoz Marin Intl

Mon 12/22

4:18 pm-7:31 pm

Nonstop4h 13m

Washington, D.C. Dulles Intl

Fri 12/26

8:26 pm-1:20 am

Nonstop3h 54m

$268

San JuanWashington, D.C.

SJU - IAD

SJUIAD

San Juan Luis Munoz Marin Intl

Wed 1/28

6:27 pm-12:24 am

1 stop6h 57m

Washington, D.C. Dulles Intl

Sat 1/31

12:23 pm-11:57 pm

1 stop10h 34m

$269

PonceWashington, D.C.

PSE - IAD

PSEIAD

Ponce Mercedita

Tue 12/23

12:29 pm-9:03 pm

1 stop9h 34m

Washington, D.C. Dulles Intl

Tue 12/30

9:58 pm-11:34 am

1 stop12h 36m

$276

San JuanWashington, D.C.

SJU - IAD

SJUIAD

San Juan Luis Munoz Marin Intl

Mon 3/9

3:22 pm-12:31 am

1 stop9h 09m

Washington, D.C. Dulles Intl

Sat 3/14

11:03 am-2:48 pm

Nonstop3h 45m

$297

San JuanWashington, D.C.

SJU - IAD

SJUIAD

San Juan Luis Munoz Marin Intl

Wed 1/14

8:10 am-11:15 am

Nonstop4h 05m

Washington, D.C. Dulles Intl

Thu 1/29

5:32 pm-10:22 pm

Nonstop3h 50m

$307

AguadillaWashington, D.C.

BQN - IAD

BQNIAD

Aguadilla Borinquen

Tue 4/7

12:15 am-7:18 am

1 stop7h 03m

Washington, D.C. Dulles Intl

Tue 4/14

10:20 am-11:09 pm

2 stops12h 49m

$307

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/9

Showing 1-10 of 55 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, June is the cheapest month in which you can book a flight from Puerto Rico to Washington, D.C. Dulles Intl Airport (average of $59). 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 December 10, 2025.

When flying from Puerto Rico to Washington, D.C. Dulles Intl Airport, the time of day you fly usually plays a role in the price. Save by searching for a flight in the morning, which can drop the price by up to 28% versus a flight in the evening.

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 December 10, 2025.

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 December 10, 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.
Delta
7.9
Good
8,007 reviews

Boarding

8.1

Crew

8.5

Food

7.3

Overall

7.9

Entertainment

7.9

Comfort

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Delta
7.9
Good
8,007 reviews
Delta
7.9
Good
8,007 reviews

Boarding

8.1

Crew

8.5

Food

7.3

Overall

7.9

Entertainment

7.9

Comfort

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
United Airlines
7.4
Good
9,092 reviews
Delta
7.9
Good
8,007 reviews

Boarding

8.1

Crew

8.5

Food

7.3

Overall

7.9

Entertainment

7.9

Comfort

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Frontier
5.8
Fair
3,085 reviews
Delta
7.9
Good
8,007 reviews

Boarding

8.1

Crew

8.5

Food

7.3

Overall

7.9

Entertainment

7.9

Comfort

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

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 4h 05m. 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 ($59), United Airlines ($129), and Delta ($142).

  • 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 (94%), United Airlines (94%), Frontier (55%).

  • 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 $67. On average you can expect to pay $430. The most popular route, (San Juan Luis Munoz Marin Intl - Washington, D.C. Dulles Intl), can usually be booked for $154.

  • 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, June is the cheapest month in which you can book a flight from Puerto Rico to Washington, D.C. Dulles Intl Airport (average of $59). 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
Hanover
Silver Spring
Fredericksburg
Fairfax
Linthicum Heights
Manassas
Rockville
Laurel
Towson
National Harbor
Bowie
Largo
McLean
Clinton

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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
Montego Bay to Dulles Intl flights
Saint Thomas Island to Dulles Intl flights
Santo Domingo to Dulles Intl flights
Santo Domingo to Baltimore flights
Nassau to Dulles Intl flights
Montego Bay to Baltimore flights
Nassau to Reagan-National flights
Punta Cana to Baltimore flights
Port of Spain to Dulles Intl flights
Punta Cana to Dulles Intl flights
Santo Domingo to Reagan-National flights
Saint Thomas Island to Reagan-National flights
Kingston to Baltimore flights
Port of Spain to Baltimore flights
Simpson Bay to Dulles Intl flights
Montego Bay to Reagan-National flights
Kingston to Dulles Intl flights
Saint Thomas Island to Baltimore flights
Punta Cana to Reagan-National flights
Ponce to Dulles Intl flights
Port of Spain to Reagan-National flights
Nassau to Baltimore flights
Simpson Bay to Reagan-National flights
Bridgetown to Dulles Intl flights
Oranjestad to Dulles Intl flights
Santiago de los Caballeros to Baltimore flights
Providenciales to Dulles Intl flights
Bridgetown to Reagan-National flights
Simpson Bay to Baltimore flights
Kingston to Reagan-National flights
Santiago de los Caballeros to Dulles Intl flights
Oranjestad to Baltimore flights
Bridgetown to Baltimore flights
Aguadilla to Reagan-National flights
George Town to Dulles Intl flights
Willemstad to Dulles Intl flights
George Town to Baltimore flights
Santiago de los Caballeros to Reagan-National flights
Oranjestad to Reagan-National flights
Ponce to Reagan-National flights
Mayagüez to Reagan-National flights
George Town to Reagan-National flights
St. George's to Reagan-National flights
St. John's to Reagan-National flights
Freeport to Baltimore flights
Aguadilla to Dulles Intl 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 December 10, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$98Average$257FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$232Average$494FlexibilityNo cancel feeOn-time69%
DeltaCheapest$269Average$431FlexibilityNo cancel feeOn-timeN/A

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