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$82+ Cheap flights from Dulles Intl (IAD) to Puerto Rico

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 11/16. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — SJU
dic. 10 — dic. 171
mié. 12/10
mié. 12/17
1 adult, Economy
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Find flight deals from Dulles Intl to Puerto Rico

Cheapest flights from Dulles Intl to Puerto Rico
Explore the most affordable flight options available from Dulles Intl to Puerto Rico. Find the lowest fares from popular airlines and budget airlines, with prices last updated on noviembre 10, 2025.

This Kiwi.com deal was found by Cheapflights users on 11/10. 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.
dom. 12/1412:04 pmIAD - SJU
1 stop10h 46mFrontier
vie. 12/193:54 amSJU - IAD
1 stop7h 15mFrontier
Deal found 11/10$188
This Kiwi.com deal was found by Cheapflights users on 11/10. 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.
dom. 12/1412:04 pmIAD - SJU
1 stop10h 46mFrontier
vie. 12/194:18 pmSJU - IAD
Nonstop4h 13mFrontier
Deal found 11/10$189
This Kiwi.com deal was found by Cheapflights users on 11/10. 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.
dom. 12/1410:38 amIAD - SJU
Nonstop3h 54mFrontier
dom. 12/214:18 pmSJU - IAD
Nonstop4h 13mFrontier
Deal found 11/10$193
This Super.com deal was found by Cheapflights users on 11/10. 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.
lun. 12/18:06 pmIAD - SJU
Nonstop3h 47mFrontier
vie. 12/194:18 pmSJU - IAD
Nonstop4h 13mFrontier
Deal found 11/10$194
This Trip.com deal was found by Cheapflights users on 11/9. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 11/297:56 pmIAD - SJU
Nonstop3h 47mFrontier
dom. 12/76:30 amSJU - IAD
Nonstop4h 13mFrontier
Deal found 11/9$195
This Kiwi.com deal was found by Cheapflights users on 11/8. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 11/238:06 pmIAD - SJU
Nonstop3h 47mFrontier
mar. 11/259:30 pmSJU - IAD
1 stop15h 22mFrontier
Deal found 11/8$197
This Kiwi.com deal was found by Cheapflights users on 11/10. 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.
dom. 12/1410:38 amIAD - SJU
Nonstop3h 54mFrontier
lun. 12/224:18 pmSJU - IAD
Nonstop4h 13mFrontier
Deal found 11/10$200
This CheapOair deal was found by Cheapflights users on 11/9. 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.
jue. 12/410:38 amIAD - SJU
Nonstop3h 54mFrontier
jue. 12/116:30 amSJU - IAD
Nonstop4h 13mFrontier
Deal found 11/9$201
This Kiwi.com deal was found by Cheapflights users on 11/9. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 11/238:06 pmIAD - SJU
Nonstop3h 47mMultiple Airlines
jue. 11/278:00 amSJU - IAD
2 stops10h 46mMultiple Airlines
Deal found 11/9$202
This Kiwi.com deal was found by Cheapflights users on 11/9. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 11/164:04 pmIAD - SJU
1 stop8h 28mFrontier
lun. 11/244:08 pmSJU - IAD
Nonstop4h 03mFrontier
Deal found 11/9$203
This Kiwi.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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 11/164:04 pmIAD - SJU
1 stop8h 28mFrontier
sáb. 11/223:58 pmSJU - IAD
Nonstop4h 03mFrontier
Deal found 11/7$204
This Priceline deal was found by Cheapflights users on 11/9. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 12/79:20 pmIAD - BQN
1 stop28h 38mFrontier
sáb. 12/133:55 amBQN - IAD
1 stop17h 29mFrontier
Deal found 11/9$206

Cheap flight deals from Dulles Intl to Puerto Rico

Keep the following information in mind while searching for Dulles Intl to Puerto Rico flight deals. Data was last updated noviembre 10, 2025.

Round-trip from

$188
(CheapOair)

One-way from

$82
(Super.com)

Popular in

December

Cheapest in

July

Average price

$360

Good round-trip deal

$308 or less

Good one-way deal

$77 or less
From Washington, D.C. Dulles Intl to Puerto Rico
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One-way flight from Washington, D.C. Dulles Intl to Puerto Rico
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Highest demand for flights based on searches. 11% potential increase in price ($45 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($10 potential savings vs. average RT price).
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Average for round-trip flights in November 2025
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Price to beat on a round-trip flight from Washington, D.C. Dulles Intl to Puerto Rico.
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Price to beat on a one-way flight from Washington, D.C. Dulles Intl to Puerto Rico.
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Dulles Intl to Puerto Rico 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 noviembre 10, 2025.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Puerto Rico that are best for you.

Fly from

Dulles Intl

Fly to

Puerto Rico

Route

Depart

Return

Price

Washington, D.C.San Juan

IAD - SJU

IADSJU

Washington, D.C. Dulles Intl

dom. 2/1

12:40 pm-8:57 pm

1 stop7h 17m

San Juan Luis Munoz Marin Intl

mié. 2/4

3:55 pm-12:24 am

1 stop9h 29m

$225

Washington, D.C.Aguadilla

IAD - BQN

IADBQN

Washington, D.C. Dulles Intl

sáb. 1/10

3:33 pm-2:58 am

1 stop10h 25m

Aguadilla Borinquen

vie. 1/16

3:55 am-2:48 pm

1 stop11h 53m

$260

Washington, D.C.San Juan

IAD - SJU

IADSJU

Washington, D.C. Dulles Intl

mié. 1/7

12:09 pm-11:44 pm

1 stop10h 35m

San Juan Luis Munoz Marin Intl

mié. 1/14

3:55 pm-11:37 pm

1 stop8h 42m

$287

Washington, D.C.Ponce

IAD - PSE

IADPSE

Washington, D.C. Dulles Intl

vie. 1/30

3:37 pm-9:55 am

1 stop17h 18m

Ponce Mercedita

sáb. 2/7

10:50 am-2:42 pm

1 stop28h 52m

$316

Washington, D.C.Ponce

IAD - PSE

IADPSE

Washington, D.C. Dulles Intl

sáb. 12/6

9:20 pm-9:20 am

1 stop11h 00m

Ponce Mercedita

sáb. 12/13

10:50 am-8:24 pm

1 stop10h 34m

$316

Washington, D.C.Ponce

IAD - PSE

IADPSE

Washington, D.C. Dulles Intl

jue. 1/15

10:23 pm-9:50 am

1 stop10h 27m

Ponce Mercedita

lun. 1/19

10:50 am-9:33 pm

1 stop11h 43m

$319

Washington, D.C.Ponce

IAD - PSE

IADPSE

Washington, D.C. Dulles Intl

sáb. 1/10

9:43 am-9:55 am

1 stop23h 12m

Ponce Mercedita

sáb. 1/17

10:50 am-9:33 pm

1 stop11h 43m

$319

Washington, D.C.Ponce

IAD - PSE

IADPSE

Washington, D.C. Dulles Intl

sáb. 1/10

9:43 am-9:55 am

1 stop23h 12m

Ponce Mercedita

lun. 1/19

10:50 am-9:33 pm

1 stop11h 43m

$319

Washington, D.C.Aguadilla

IAD - BQN

IADBQN

Washington, D.C. Dulles Intl

dom. 12/7

8:20 am-11:57 pm

2 stops14h 37m

Aguadilla Borinquen

sáb. 12/13

1:09 am-7:20 am

1 stop7h 11m

$337

Washington, D.C.Aguadilla

IAD - BQN

IADBQN

Washington, D.C. Dulles Intl

lun. 12/8

12:45 pm-11:57 pm

2 stops10h 12m

Aguadilla Borinquen

mar. 12/9

1:09 am-7:20 am

1 stop7h 11m

$338

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/9

Showing 1-10 of 54 results
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Best time to book a flight from Dulles Intl to Puerto Rico

Have a flexible travel schedule? Discover the best time to fly to Puerto Rico from Dulles Intl 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 Washington, D.C. Dulles Intl Airport to Puerto Rico

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

Currently, June is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Puerto Rico (average of $86). Flying from Washington, D.C. Dulles Intl Airport to Puerto Rico in September is currently the most expensive (average of $272). 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 PR?

Find hourly flight availability from Dulles Intl to Puerto Rico. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated noviembre 10, 2025.

It’s typically best to fly out from Washington, D.C. Dulles Intl Airport to Puerto Rico at noon. Doing so could potentially save you 45% 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 Puerto Rico?

Use this chart to determine the cheapest time to fly round-trip from Dulles Intl to Puerto Rico. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Washington, D.C. Dulles Intl Airport to Puerto Rico flight should consider departing on Friday evenings when fares are most often at their lowest. Monday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Washington, D.C. Dulles Intl Airport to Puerto Rico

Explore weekly flight availability from Dulles Intl to Puerto Rico. 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 noviembre 10, 2025.

The most flights from IAD to PR0 are scheduled on a Monday (5 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (5 on average).

Reviews of airlines servicing Puerto Rico

Get insights into the airlines that provide service to Puerto Rico. 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 Puerto Rico. Reviews last updated noviembre 10, 2025.
Read through reviews of airlines operating flights from Washington, D.C. Dulles Intl Airport to Puerto Rico, such as Delta, United Airlines, and American Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,007 reviews

Crew

8.5

Entertainment

7.9

Overall

7.9

Comfort

7.9

Boarding

8.1

Food

7.3

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

Crew

8.5

Entertainment

7.9

Overall

7.9

Comfort

7.9

Boarding

8.1

Food

7.3

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
9,012 reviews
Delta
7.9
Good
8,007 reviews

Crew

8.5

Entertainment

7.9

Overall

7.9

Comfort

7.9

Boarding

8.1

Food

7.3

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.
American Airlines
7.2
Good
11,045 reviews
Delta
7.9
Good
8,007 reviews

Crew

8.5

Entertainment

7.9

Overall

7.9

Comfort

7.9

Boarding

8.1

Food

7.3

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.
Spirit Airlines
6.3
Okay
8,136 reviews
Delta
7.9
Good
8,007 reviews

Crew

8.5

Entertainment

7.9

Overall

7.9

Comfort

7.9

Boarding

8.1

Food

7.3

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
3,113 reviews
Delta
7.9
Good
8,007 reviews

Crew

8.5

Entertainment

7.9

Overall

7.9

Comfort

7.9

Boarding

8.1

Food

7.3

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 Dulles Intl to Puerto Rico. 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 Washington, D.C. Dulles Intl Airport to Puerto Rico?

    Airlines like Delta, Frontier, and United Airlines fly from Washington, D.C. Dulles Intl Airport to Puerto Rico in about 7h 17m. The time it takes to get you to your destination can typically vary by up to 7h 20m. There are 1573 mi between Washington, D.C. Dulles Intl Airport and Puerto Rico. Both multi-stop and nonstop flights can be found to your destination and back.

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

    The cheapest airlines for a one-way flight from Washington, D.C. Dulles Intl Airport to Puerto Rico are United Airlines ($108), Delta ($113), and Frontier ($143).

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

    The most popular route from Washington, D.C. Dulles Intl Airport to Puerto Rico is Washington, D.C. Dulles Intl - San Juan Luis Munoz Marin Intl. You may also consider Washington, D.C. Dulles Intl - Ponce Mercedita or Washington, D.C. Dulles Intl - Aguadilla Borinquen.

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

    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 Washington, D.C. Dulles Intl Airport to Puerto Rico on time: Air Canada (61%), United Airlines (61%), Frontier (57%).

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

    The cheapest flight price from Washington, D.C. Dulles Intl Airport to Puerto Rico is $69. On average you can expect to pay $295. The most popular route, (Washington, D.C. Dulles Intl - San Juan Luis Munoz Marin Intl), can usually be booked for $141.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Dulles Intl to Puerto Rico 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 Washington, D.C. Dulles Intl Airport to Puerto Rico?

    Currently, June is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Puerto Rico (average of $86). Flying from Washington, D.C. Dulles Intl Airport to Puerto Rico in September is currently the most expensive (average of $272). 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

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Alternative routes for Dulles Intl to Puerto Rico

See prices for flight routes from nearby airports that may be better suited for you.
Dulles Intl to Luis Munoz Marin Intl flights
Reagan-National to Luis Munoz Marin Intl flights
Baltimore to Luis Munoz Marin Intl flights
Dulles Intl to Punta Cana flights
Baltimore to Punta Cana flights
Dulles Intl to Oranjestad flights
Dulles Intl to Montego Bay flights
Dulles Intl to Saint Thomas Island flights
Reagan-National to Punta Cana flights
Dulles Intl to Nassau flights
Baltimore to Oranjestad flights
Baltimore to Montego Bay flights
Reagan-National to Nassau flights
Dulles Intl to Providenciales flights
Baltimore to Saint Thomas Island flights
Reagan-National to Saint Thomas Island flights
Dulles Intl to Santo Domingo flights
Reagan-National to Oranjestad flights
Dulles Intl to Simpson Bay flights
Reagan-National to Montego Bay flights
Baltimore to Nassau flights
Baltimore to Providenciales flights
Baltimore to Santo Domingo flights
Reagan-National to Providenciales flights
Reagan-National to Santo Domingo flights
Reagan-National to Simpson Bay flights
Dulles Intl to Willemstad flights
Dulles Intl to Castries flights
Baltimore to Simpson Bay flights
Dulles Intl to George Town flights
Dulles Intl to Bridgetown flights
Baltimore to Castries flights
Baltimore to George Town flights
Baltimore to Willemstad flights
Baltimore to Bridgetown flights
Reagan-National to Willemstad flights
Reagan-National to George Town flights
Reagan-National to Castries flights
Dulles Intl to Ponce flights
Reagan-National to Bridgetown flights
Dulles Intl to Port of Spain flights
Dulles Intl to Christiansted flights
Baltimore to Kingston flights
Reagan-National to Christiansted flights
Reagan-National to Port of Spain flights
Dulles Intl to Santiago de los Caballeros flights
Dulles Intl to Kingston flights
Reagan-National to Kingston flights
Dulles Intl to Road Town flights
Baltimore to Port of Spain flights

Top 6 airlines flying from Dulles Intl to Puerto Rico

Discover the top 6 airlines that operate flights from Dulles Intl to Puerto Rico. 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 noviembre 10, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$82Average$291FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$145Average$484FlexibilityNo cancel feeOn-time71%
Spirit AirlinesCheapest$153Average$288FlexibilityNo cancel feeOn-time65%
DeltaCheapest$158Average$350FlexibilityNo cancel feeOn-timeN/A
JetBlueCheapest$161Average$386FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$273Average$480FlexibilityNo cancel feeOn-time69%

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