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 Frontier ($87), American Airlines ($88), and United Airlines ($98).

In terms of precipitation, rainfall in Puerto Rico ranges from 2.2 - 6.1 inches per month. November is typically the wettest month, when rainfall can reach 6.1 in. February is typically the driest time to visit Puerto Rico when rainfall is around 2.2 in.

If weather is an important factor for your trip to Puerto Rico, use this chart to help with planning. For those seeking warmer temperatures, June is the ideal time of year to visit, when temperatures reach an average of 82.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 77.0 F).

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 - Aguadilla Borinquen or Washington, D.C. Dulles Intl - Mayagüez Eugenio M De Hostos.

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 $79. On average you can expect to pay $717. The most popular route, (Washington, D.C. Dulles Intl - San Juan Luis Munoz Marin Intl), can usually be booked for $156.

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 (92%), United Airlines (92%), Brussels Airlines (91%).

What are the most popular airlines that fly from Washington, D.C. Dulles Intl Airport to Puerto Rico?

Before booking your flight from Washington, D.C. Dulles Intl Airport to Puerto Rico check out the most popular airlines for this route: American Airlines, JetBlue or Delta.

How far in advance should I book a flight from Washington, D.C. Dulles Intl Airport to Puerto Rico?

Find a great deal and save up to 30% by booking at least 52 days prior to your desired departure date, rather than waiting until the week of travel. According to our data, there are a number of flights available from Washington, D.C. Dulles Intl Airport to Puerto Rico within the next two weeks, with the cheapest ticket starting at $266.

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

Due to multiple factors, expect to potentially pay more when booking in December. For low rates, March can be a great choice for travel to Puerto Rico. Flights to Puerto Rico from Washington, D.C. Dulles Intl Airport in March are about $349 on average during March, but can be found for as low as $122.

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.

$499+ Flights from Washington, D.C. Dulles Intl Airport to Puerto Rico

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Cheap flight deals from Dulles Intl to Puerto Rico

Round-trip from	$156 (Priceline)
One-way from	$87 (Priceline)
Popular in	December
Cheapest in	March
Average price	$324
Good round-trip deal	$228 or less
Good one-way deal	$125 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

Search Deals

Highest demand for flights based on searches. 12% potential increase in price ($47 potential increase over avg. RT price).

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Cheapest flight prices on average. 3% potential price decrease ($12 potential savings vs. average RT price).

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Average for round-trip flights in July 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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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 July 2, 2025.

Fri 8/229:33 pmIAD - BQN

1 stop29h 11mFrontier

Sat 8/303:39 amBQN - IAD

1 stop17h 09mFrontier

Deal found 6/30

$156

Thu 9/256:57 pmIAD - SJU

1 stop13h 05mFrontier

Sat 9/273:39 amSJU - IAD

1 stop14h 33mFrontier

Deal found 6/30

$168

Thu 10/96:15 amIAD - SJU

1 stop7h 30mUnited Airlines

Mon 10/133:56 pmSJU - IAD

1 stop8h 25mUnited Airlines

Deal found 7/2

$185

Fri 7/46:27 amIAD - SJU

1 stop16h 58mAmerican Airlines

Wed 7/96:15 amSJU - IAD

1 stop16h 31mAmerican Airlines

Deal found 6/30

$200

Sun 11/28:28 pmIAD - PSE

1 stop12h 16mFrontier

Fri 11/710:34 amPSE - IAD

1 stop10h 09mFrontier

Deal found 7/1

$284

Wed 11/128:30 amIAD - BQN

2 stops14h 27mUnited Airlines

Tue 11/181:09 amBQN - IAD

1 stop7h 11mUnited Airlines

Deal found 6/30

$365

Fri 10/38:39 amIAD - VQS

1 stop10h 36mMultiple Airlines

Fri 10/108:45 amVQS - IAD

1 stop12h 07mMultiple Airlines

Deal found 7/1

$584

Tue 11/256:00 amIAD - MAZ

2 stops9h 27mUnited Airlines

Thu 11/272:00 pmMAZ - IAD

2 stops10h 59mUnited Airlines

Deal found 7/1

$705

Thu 7/106:35 amIAD - MAZ

2 stops12h 07mMultiple Airlines

Mon 7/147:35 amMAZ - IAD

1 stop13h 19mMultiple Airlines

Deal found 7/1

$817

Wed 11/55:32 pmIAD - CPX

1 stop22h 19mUnited Airlines

Mon 11/1710:13 amCPX - IAD

1 stop26h 22mUnited Airlines

Deal found 7/1

$921

Sun 11/25:32 pmIAD - VQS

1 stop23h 28mUnited Airlines

Mon 11/108:45 amVQS - IAD

1 stop27h 50mUnited Airlines

Deal found 7/1

$921

Best flights from Dulles Intl to Puerto Rico
Discover carefully curated flight deals from Dulles Intl to Puerto Rico that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 2, 2025.

Fri 8/229:33 pmIAD - BQN

1 stop29h 11mFrontier

Sat 8/303:39 amBQN - IAD

1 stop17h 09mFrontier

Deal found 6/30

$156

Tue 9/308:39 amIAD - SJU

Nonstop3h 55mUnited Airlines

Sun 10/54:55 pmSJU - IAD

Nonstop3h 57mUnited Airlines

Deal found 7/2

$186

Sat 7/56:44 pmIAD - SJU

1 stop10h 22mAmerican Airlines

Wed 7/912:59 amSJU - IAD

1 stop16h 39mAmerican Airlines

Deal found 7/2

$200

Thu 9/256:57 pmIAD - SJU

1 stop13h 05mFrontier

Sat 9/273:39 amSJU - IAD

1 stop14h 33mFrontier

Deal found 6/30

$168

Fri 10/38:39 amIAD - VQS

1 stop10h 36mMultiple Airlines

Fri 10/108:45 amVQS - IAD

1 stop12h 07mMultiple Airlines

Deal found 7/1

$584

Sun 11/28:28 pmIAD - PSE

1 stop12h 16mFrontier

Fri 11/710:34 amPSE - IAD

1 stop10h 09mFrontier

Deal found 7/1

$284

Tue 8/128:30 amIAD - BQN

2 stops14h 39mUnited Airlines

Sun 8/1712:15 amBQN - IAD

1 stop7h 05mUnited Airlines

Deal found 7/1

$420

Fri 8/226:35 amIAD - CPX

2 stops25h 24mMultiple Airlines

Sat 8/2312:31 pmCPX - IAD

2 stops12h 01mMultiple Airlines

Deal found 6/30

$793

Thu 7/106:35 amIAD - MAZ

2 stops12h 07mMultiple Airlines

Mon 7/147:35 amMAZ - IAD

1 stop13h 19mMultiple Airlines

Deal found 7/1

$817

Sun 11/25:32 pmIAD - VQS

1 stop23h 28mUnited Airlines

Mon 11/108:45 amVQS - IAD

1 stop27h 50mUnited Airlines

Deal found 7/1

$921

Tue 7/156:15 amIAD - CPX

2 stops10h 36mUnited Airlines

Sat 7/1910:13 amCPX - IAD

2 stops12h 25mUnited Airlines

Deal found 6/30

$1,100

Fri 8/158:40 amIAD - MAZ

1 stop7h 47mUnited Airlines

Fri 8/292:00 pmMAZ - IAD

1 stop6h 52mUnited Airlines

Deal found 7/2

$1,136

Last-minute flights from Dulles Intl to Puerto Rico
Discover last-minute flight deals from Dulles Intl to Puerto Rico. Data last updated July 2, 2025 and is based on user searches.

Fri 7/46:27 amIAD - SJU

1 stop16h 58mAmerican Airlines

Wed 7/96:15 amSJU - IAD

1 stop16h 31mAmerican Airlines

Deal found 6/30

$200

Fri 7/43:39 pmIAD - MAZ

2 stops17h 35mMultiple Airlines

Sun 7/65:00 pmMAZ - IAD

1 stop27h 54mMultiple Airlines

Deal found 6/30

$691

Mon 7/79:58 pmIAD - SJU

1 stop20h 33mFrontier

Fri 7/115:15 pmSJU - IAD

1 stop25h 13mFrontier

Deal found 6/30

$175

Mon 7/71:20 pmIAD - SJU

1 stop10h 34mUnited Airlines

Fri 7/113:56 pmSJU - IAD

1 stop8h 34mUnited Airlines

Deal found 7/1

$208

Mon 7/712:45 pmIAD - BQN

2 stops10h 24mUnited Airlines

Thu 7/2412:15 amBQN - IAD

1 stop7h 05mUnited Airlines

Deal found 7/2

$540

Thu 7/101:36 pmIAD - BQN

1 stop12h 25mFrontier

Fri 7/112:59 amBQN - IAD

1 stop9h 52mFrontier

Deal found 7/1

$264

Thu 7/106:35 amIAD - MAZ

2 stops12h 07mMultiple Airlines

Mon 7/147:35 amMAZ - IAD

1 stop13h 19mMultiple Airlines

Deal found 7/1

$817

Thu 7/1010:32 pmIAD - MAZ

2 stops41h 55mUnited Airlines

Mon 7/142:00 pmMAZ - IAD

2 stops26h 10mUnited Airlines

Deal found 6/30

$2,384

Fri 7/116:27 amIAD - SJU

1 stop16h 58mAmerican Airlines

Wed 7/166:15 amSJU - IAD

1 stop16h 31mAmerican Airlines

Deal found 7/2

$225

Sat 7/268:40 amIAD - VQS

1 stop23h 45mMultiple Airlines

Wed 7/3011:58 amVQS - IAD

1 stop8h 56mMultiple Airlines

Deal found 7/2

$893

Tue 8/128:30 amIAD - BQN

2 stops14h 39mUnited Airlines

Sun 8/1712:15 amBQN - IAD

1 stop7h 05mUnited Airlines

Deal found 7/1

$420

Fri 8/158:40 amIAD - MAZ

1 stop7h 47mUnited Airlines

Fri 8/292:00 pmMAZ - IAD

1 stop6h 52mUnited Airlines

Deal found 7/2

$1,136

One-way flights from Dulles Intl to Puerto Rico
Search for one-way flight options from Dulles Intl to Puerto Rico. Find affordable one-way fares based on user searches. Data last updated July 2, 2025.

Mon 7/79:58 pmIAD - SJU

1 stop20h 33mFrontier

Deal found 6/30

$87

Tue 7/1511:49 amIAD - SJU

1 stop11h 36mAmerican Airlines

Deal found 7/2

$88

Mon 8/118:40 amIAD - SJU

Nonstop3h 54mUnited Airlines

Deal found 6/30

$98

Thu 7/101:36 pmIAD - BQN

1 stop12h 25mFrontier

Deal found 7/1

$132

Mon 9/810:49 amIAD - SJU

3 stops27h 22mMultiple Airlines

Deal found 6/30

$151

Thu 7/106:35 amIAD - BQN

2 stops16h 34mUnited Airlines

Deal found 7/1

$299

Thu 7/108:40 amIAD - MAZ

1 stop24h 34mMultiple Airlines

Deal found 7/1

$382

Fri 8/228:39 amIAD - CPX

1 stop6h 05mMultiple Airlines

Deal found 6/30

$447

Fri 8/156:15 amIAD - CPX

2 stops10h 36mUnited Airlines

Deal found 7/1

$563

Cheapflights Fare Finder

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

Fly to

Route

Depart

Return

Price

Washington, D.C.Aguadilla

IAD - BQN

IADBQN

Washington, D.C. Dulles Intl

Fri 8/22

9:33 pm-2:44 am

1 stop29h 11m

Aguadilla Borinquen

Sat 8/30

3:39 am-8:48 pm

1 stop17h 09m

$156

Washington, D.C.San Juan

IAD - SJU

IADSJU

Washington, D.C. Dulles Intl

Thu 9/25

6:57 pm-8:02 am

1 stop13h 05m

San Juan Luis Munoz Marin Intl

Sat 9/27

3:39 am-6:12 pm

1 stop14h 33m

$168

Washington, D.C.San Juan

IAD - SJU

IADSJU

Washington, D.C. Dulles Intl

Tue 7/15

1:06 pm-12:27 am

1 stop11h 21m

San Juan Luis Munoz Marin Intl

Fri 7/18

7:54 am-11:58 pm

1 stop16h 04m

$175

Washington, D.C.San Juan

IAD - SJU

IADSJU

Washington, D.C. Dulles Intl

Thu 10/9

6:15 am-1:45 pm

1 stop7h 30m

San Juan Luis Munoz Marin Intl

Mon 10/13

3:56 pm-12:21 am

1 stop8h 25m

$185

Washington, D.C.Aguadilla

IAD - BQN

IADBQN

Washington, D.C. Dulles Intl

Tue 8/12

8:30 am-11:09 pm

2 stops14h 39m

Aguadilla Borinquen

Sun 8/17

12:15 am-7:20 am

1 stop7h 05m

$420

Washington, D.C.Mayagüez

IAD - MAZ

IADMAZ

Washington, D.C. Dulles Intl

Thu 7/10

6:35 am-6:42 pm

2 stops12h 07m

Mayagüez Eugenio M De Hostos

Mon 7/14

7:35 am-8:54 pm

1 stop13h 19m

$817

Washington, D.C.Vieques

IAD - VQS

IADVQS

Washington, D.C. Dulles Intl

Fri 7/25

6:10 am-6:00 pm

2 stops11h 50m

Vieques

Mon 7/28

3:03 pm-8:54 pm

1 stop5h 51m

$1,042

Washington, D.C.Mayagüez

IAD - MAZ

IADMAZ

Washington, D.C. Dulles Intl

Fri 8/15

8:40 am-4:27 pm

1 stop7h 47m

Mayagüez Eugenio M De Hostos

Fri 8/29

2:00 pm-8:52 pm

1 stop6h 52m

$1,136

Washington, D.C.Vieques

IAD - VQS

IADVQS

Washington, D.C. Dulles Intl

Sat 8/16

3:39 pm-6:00 pm

2 stops26h 21m

Vieques

Sat 8/23

2:45 pm-8:52 pm

1 stop6h 07m

$1,918

Washington, D.C.San Juan

IAD - SJU

IADSJU

Washington, D.C. Dulles Intl

Mon 7/7

9:58 pm-6:31 pm

1 stop20h 33m

$87

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/30

Showing 1-10 of 19 results

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, September is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Puerto Rico (average of $254). Flying from Washington, D.C. Dulles Intl Airport to Puerto Rico in June is currently the most expensive (average of $339). 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?

When flying from Washington, D.C. Dulles Intl Airport to Puerto Rico, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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

The most flights from IAD to PR0 are scheduled on a Monday (2 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (2 on average).

Reviews of airlines servicing Puerto Rico

Read through reviews of airlines operating flights from Washington, D.C. Dulles Intl Airport to Puerto Rico, 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

8,861 reviews

Reviews

1 / 20

4.0

Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

United Airlines

7.4

Good

8,861 reviews

United Airlines

7.4

Good

8,861 reviews

Reviews

1 / 20

4.0

Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

American Airlines

7.2

Good

10,000 reviews

United Airlines

7.4

Good

8,861 reviews

Reviews

1 / 20

4.0

Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

Frontier

5.9

Fair

3,290 reviews

United Airlines

7.4

Good

8,861 reviews

Reviews

1 / 20

4.0

Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

Related info for your journey

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 Frontier ($87), American Airlines ($88), and United Airlines ($98).
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 - Aguadilla Borinquen or Washington, D.C. Dulles Intl - Mayagüez Eugenio M De Hostos.
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 (92%), United Airlines (92%), Brussels Airlines (91%).
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 $79. On average you can expect to pay $717. The most popular route, (Washington, D.C. Dulles Intl - San Juan Luis Munoz Marin Intl), can usually be booked for $156.
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, September is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Puerto Rico (average of $254). Flying from Washington, D.C. Dulles Intl Airport to Puerto Rico in June is currently the most expensive (average of $339). 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

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for Dulles Intl to Puerto Rico

Dulles Intl to Luis Munoz Marin Intl flights

Baltimore to Luis Munoz Marin Intl flights

Reagan-National to Luis Munoz Marin Intl flights

Dulles Intl to Punta Cana flights

Dulles Intl to Montego Bay flights

Dulles Intl to Oranjestad flights

Baltimore to Punta Cana flights

Dulles Intl to Saint Thomas Island flights

Baltimore to Oranjestad flights

Reagan-National to Punta Cana flights

Reagan-National to Oranjestad flights

Baltimore to Montego Bay flights

Reagan-National to Montego Bay flights

Baltimore to Santo Domingo flights

Dulles Intl to Nassau flights

Dulles Intl to Santo Domingo flights

Baltimore to Saint Thomas Island flights

Dulles Intl to Simpson Bay flights

Reagan-National to Nassau flights

Reagan-National to Saint Thomas Island flights

Dulles Intl to Providenciales flights

Baltimore to Simpson Bay flights

Dulles Intl to Willemstad flights

Reagan-National to Simpson Bay flights

Dulles Intl to Bridgetown flights

Reagan-National to Santo Domingo flights

Baltimore to Nassau flights

Baltimore to St. John's flights

Dulles Intl to Castries flights

Baltimore to Providenciales flights

Reagan-National to Providenciales flights

Reagan-National to St. John's flights

Baltimore to Bridgetown flights

Reagan-National to Christiansted flights

Dulles Intl to George Town flights

Dulles Intl to St. John's flights

Baltimore to Castries flights

Reagan-National to Bridgetown flights

Reagan-National to Puerto Plata flights

Dulles Intl to Christiansted flights

Baltimore to Christiansted flights

Dulles Intl to Kralendijk flights

Baltimore to Kralendijk flights

Baltimore to Willemstad flights

Reagan-National to Willemstad flights

Baltimore to The Valley flights

Dulles Intl to Kingston flights

Baltimore to George Town flights

Reagan-National to Port of Spain flights

Reagan-National to George Town flights

Complete your trip

Puerto Rico car rentals

San Juan Luis Munoz Marin Intl Airport car rentals

Aguadilla Borinquen Airport car rentals

Ponce Mercedita Airport car rentals

San Juan Isla Grande Airport car rentals

Vieques Airport car rentals

Mayagüez Eugenio M De Hostos Airport car rentals

San Juan car rentals

Aguadilla car rentals

Ponce car rentals

Top 6 airlines flying from Dulles Intl to Puerto Rico

Airline	Cheapest	Average	Flexibility	On-time
Frontier	Cheapest$82	Average$268	FlexibilityNo cancel fee	On-time62%
Spirit Airlines	Cheapest$135	Average$287	FlexibilityNo cancel fee	On-time65%
JetBlue	Cheapest$203	Average$385	FlexibilityNo cancel fee	On-time62%
American Airlines	Cheapest$224	Average$529	FlexibilityNo cancel fee	On-time71%
Delta	Cheapest$234	Average$386	FlexibilityNo cancel fee	On-timeN/A
United Airlines	Cheapest$294	Average$485	FlexibilityNo cancel fee	On-time69%

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$87+ 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 7/7. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Dulles Intl to Puerto Rico with Cheapflights

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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 July 2, 2025.

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Good round-trip deal

Good one-way deal

Find flight deals from Dulles Intl to Puerto Rico

Cheapest flights from Dulles Intl to Puerto RicoExplore 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 July 2, 2025.

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 July 2, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Puerto Rico that are best for you.

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.

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?

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 July 2, 2025.

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

Reviews of airlines servicing Puerto Rico

Read through reviews of airlines operating flights from Washington, D.C. Dulles Intl Airport to Puerto Rico, 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.

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.

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

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

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

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

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

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

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

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

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Alternative routes for Dulles Intl to Puerto Rico

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Top 6 airlines flying from Dulles Intl to Puerto Rico

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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 July 2, 2025.