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Puerto Rico

$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 11/25. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — SJU
nov. 29 — dic. 61
sáb. 11/29
sáb. 12/6
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 octubre 30, 2025.

This Priceline deal was found by Cheapflights users on 10/30. 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.
vie. 11/148:36 pmIAD - BQN
1 stop17h 54mFrontier
dom. 11/163:59 amBQN - IAD
1 stop16h 53mFrontier
Deal found 10/30$168
This Kiwi.com deal was found by Cheapflights users on 10/29. 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.
jue. 12/1110:38 amIAD - SJU
Nonstop3h 54mFrontier
lun. 12/229:37 pmSJU - IAD
1 stop24h 26mFrontier
Deal found 10/29$199
This deal was found by Cheapflights users on 10/28. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 11/143:03 pmIAD - SJU
1 stop9h 29mFrontier
vie. 11/214:08 pmSJU - IAD
Nonstop4h 03mFrontier
Deal found 10/28$200
This Frontier deal was found by Cheapflights users on 10/27. 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.
jue. 11/2711:12 amIAD - SJU
1 stop9h 00mFrontier
jue. 12/46:30 amSJU - IAD
Nonstop4h 13mFrontier
Deal found 10/27$203
This Frontier deal was found by Cheapflights users on 10/30. 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.
dom. 12/75:26 pmIAD - SJU
2 stops15h 11mFrontier
lun. 12/224:18 pmSJU - IAD
Nonstop4h 13mFrontier
Deal found 10/30$204
This Kiwi.com deal was found by Cheapflights users on 10/28. 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. 11/97:26 pmIAD - SJU
Nonstop3h 52mMultiple Airlines
jue. 11/133:37 pmSJU - IAD
2 stops9h 34mMultiple Airlines
Deal found 10/28$205
This Frontier deal was found by Cheapflights users on 10/29. 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.
mié. 12/317:01 pmIAD - SJU
2 stops12h 38mFrontier
lun. 1/124:02 pmSJU - IAD
Nonstop4h 13mFrontier
Deal found 10/29$207
This Mytrip deal was found by Cheapflights users on 10/30. 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.
sáb. 11/227:56 pmIAD - SJU
Nonstop3h 47mFrontier
lun. 11/243:59 amSJU - IAD
1 stop28h 46mFrontier
Deal found 10/30$208
This CheapOair deal was found by Cheapflights users on 10/30. 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.
sáb. 11/227:56 pmIAD - SJU
Nonstop3h 47mFrontier
dom. 11/233:59 amSJU - IAD
1 stop28h 46mFrontier
Deal found 10/30$209
This Frontier deal was found by Cheapflights users on 10/29. 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.
jue. 11/206:55 amIAD - SJU
2 stops18h 59mFrontier
mar. 11/254:08 pmSJU - IAD
Nonstop4h 03mFrontier
Deal found 10/29$210
This Kiwi.com deal was found by Cheapflights users on 10/29. 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.
vie. 11/216:42 pmIAD - SJU
1 stop28h 27mMultiple Airlines
mar. 11/254:08 pmSJU - IAD
Nonstop4h 03mMultiple Airlines
Deal found 10/29$211
This Frontier deal was found by Cheapflights users on 10/29. 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.
jue. 12/117:18 pmIAD - PSE
2 stops13h 37mFrontier
sáb. 12/1310:50 amPSE - IAD
1 stop10h 34mFrontier
Deal found 10/29$263

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 octubre 30, 2025.

Round-trip from

$168
(Priceline)

One-way from

$82
(Kiwi.com)

Popular in

December

Cheapest in

July

Average price

$333

Good round-trip deal

$303 or less

Good one-way deal

$69 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. 10% potential increase in price ($39 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($10 potential savings vs. average RT price).
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Average for round-trip flights in October 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 octubre 30, 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

mié. 3/18

6:10 am-1:16 pm

1 stop7h 06m

San Juan Luis Munoz Marin Intl

mié. 3/25

2:21 pm-11:02 pm

1 stop8h 41m

$225

Washington, D.C.San Juan

IAD - SJU

IADSJU

Washington, D.C. Dulles Intl

dom. 1/18

12:37 pm-11:44 pm

1 stop10h 07m

San Juan Luis Munoz Marin Intl

vie. 1/23

6:27 pm-12:24 am

1 stop6h 57m

$242

Washington, D.C.San Juan

IAD - SJU

IADSJU

Washington, D.C. Dulles Intl

mar. 3/24

6:00 am-1:14 pm

1 stop7h 14m

San Juan Luis Munoz Marin Intl

mié. 3/25

2:21 pm-11:02 pm

1 stop8h 41m

$260

Washington, D.C.Ponce

IAD - PSE

IADPSE

Washington, D.C. Dulles Intl

jue. 12/11

7:18 pm-9:55 am

2 stops13h 37m

Ponce Mercedita

sáb. 12/13

10:50 am-8:24 pm

1 stop10h 34m

$263

Washington, D.C.San Juan

IAD - SJU

IADSJU

Washington, D.C. Dulles Intl

lun. 1/12

5:32 pm-10:22 pm

Nonstop3h 50m

San Juan Luis Munoz Marin Intl

vie. 1/23

8:35 am-5:35 pm

1 stop10h 00m

$281

Washington, D.C.San Juan

IAD - SJU

IADSJU

Washington, D.C. Dulles Intl

mar. 11/11

12:11 pm-11:56 pm

1 stop10h 45m

San Juan Luis Munoz Marin Intl

vie. 11/14

6:36 pm-12:16 am

1 stop6h 40m

$295

Washington, D.C.Ponce

IAD - PSE

IADPSE

Washington, D.C. Dulles Intl

jue. 11/20

11:12 am-10:00 am

1 stop21h 48m

Ponce Mercedita

jue. 11/27

10:55 am-7:50 am

1 stop21h 55m

$296

Washington, D.C.Ponce

IAD - PSE

IADPSE

Washington, D.C. Dulles Intl

vie. 12/5

9:20 pm-9:55 am

1 stop11h 35m

Ponce Mercedita

dom. 12/7

10:20 am-8:24 pm

1 stop11h 04m

$296

Washington, D.C.San Juan

IAD - SJU

IADSJU

Washington, D.C. Dulles Intl

mar. 11/18

5:32 pm-10:22 pm

Nonstop3h 50m

San Juan Luis Munoz Marin Intl

vie. 11/21

5:50 pm-8:55 pm

Nonstop4h 05m

$300

Washington, D.C.San Juan

IAD - SJU

IADSJU

Washington, D.C. Dulles Intl

mié. 1/21

8:27 am-1:17 pm

Nonstop3h 50m

San Juan Luis Munoz Marin Intl

mar. 1/27

7:45 am-4:14 pm

1 stop9h 29m

$304

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/29

Showing 1-10 of 59 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 octubre 30, 2025.

It’s typically best to fly out from Washington, D.C. Dulles Intl Airport to Puerto Rico in the evening. Doing so could potentially save you 19% on the flight price compared to flying at noon, 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.

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 octubre 30, 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
7,998 reviews

Comfort

7.9

Entertainment

7.9

Crew

8.5

Overall

7.9

Boarding

8.2

Food

7.3

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
Delta
7.9
Good
7,998 reviews
Delta
7.9
Good
7,998 reviews

Comfort

7.9

Entertainment

7.9

Crew

8.5

Overall

7.9

Boarding

8.2

Food

7.3

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
United Airlines
7.4
Good
8,998 reviews
Delta
7.9
Good
7,998 reviews

Comfort

7.9

Entertainment

7.9

Crew

8.5

Overall

7.9

Boarding

8.2

Food

7.3

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
American Airlines
7.2
Good
11,035 reviews
Delta
7.9
Good
7,998 reviews

Comfort

7.9

Entertainment

7.9

Crew

8.5

Overall

7.9

Boarding

8.2

Food

7.3

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
Spirit Airlines
6.3
Okay
8,116 reviews
Delta
7.9
Good
7,998 reviews

Comfort

7.9

Entertainment

7.9

Crew

8.5

Overall

7.9

Boarding

8.2

Food

7.3

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
Frontier
5.8
Fair
3,122 reviews
Delta
7.9
Good
7,998 reviews

Comfort

7.9

Entertainment

7.9

Crew

8.5

Overall

7.9

Boarding

8.2

Food

7.3

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.

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 3h 50m. The time it takes to get you to your destination can typically vary by up to 9h 47m. 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 Delta ($88), United Airlines ($108), and Frontier ($114).

  • 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: Brussels Airlines (100%), Air Canada (92%), United Airlines (92%).

  • 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 $1,049. The most popular route, (Washington, D.C. Dulles Intl - San Juan Luis Munoz Marin Intl), can usually be booked for $146.

  • 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
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Baltimore to Providenciales flights
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Reagan-National to Santo Domingo flights
Dulles Intl to George Town flights
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Reagan-National to Simpson Bay flights
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Dulles Intl to Willemstad flights
Baltimore to Simpson Bay flights
Dulles Intl to Castries flights
Baltimore to Bridgetown flights
Baltimore to George Town flights
Reagan-National to George Town flights
Dulles Intl to Bridgetown flights
Baltimore to Willemstad flights
Baltimore to Castries flights
Baltimore to Kingston flights
Reagan-National to Willemstad flights
Reagan-National to Castries flights
Dulles Intl to Port of Spain flights
Dulles Intl to Kingston flights
Reagan-National to Bridgetown flights
Reagan-National to Kingston flights
Reagan-National to Christiansted flights
Dulles Intl to Christiansted flights
Dulles Intl to St. John's flights
Baltimore to Port of Spain flights
Reagan-National to Port of Spain flights
Baltimore to St. John's 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 octubre 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$82Average$289FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$145Average$489FlexibilityNo cancel feeOn-time71%
Spirit AirlinesCheapest$153Average$288FlexibilityNo cancel feeOn-time65%
DeltaCheapest$158Average$353FlexibilityNo cancel feeOn-timeN/A
JetBlueCheapest$161Average$386FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$274Average$481FlexibilityNo cancel feeOn-time69%

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