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

Airlines like United Airlines, Frontier, and Delta fly from Washington, D.C. Dulles Intl Airport to Puerto Rico in about 9h 50m. The time it takes to get you to your destination can typically vary by up to 13h 11m. 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.

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 - Culebra.

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 $178. On average you can expect to pay $380. The most popular route, (Washington, D.C. Dulles Intl - San Juan Luis Munoz Marin Intl), can usually be booked for $239.

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 (62%), United Airlines (62%), Brussels Airlines (52%).

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: United Airlines, Frontier or American Airlines.

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.

$119+ Cheap Flights from Washington, D.C. Dulles Intl Airport to Puerto Rico

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Cheap flight deals from Dulles Intl to Puerto Rico

Cheapest

Best

Last-minute

One-way

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 September 23, 2026.

Tue 10/2011:12 am -

1 stop23h 10m

Wed 10/2811:22 am -

1 stop22h 59m

Deal found 9/19

$234

Thu 10/1511:12 am -

1 stop22h 45m

Tue 10/2010:52 am -

1 stop23h 25m

Deal found 9/21

$255

Wed 10/2111:12 am -

1 stop22h 45m

Fri 10/2310:52 am -

1 stop23h 25m

Deal found 9/20

$265

Sat 9/2611:12 am -

1 stop23h 01m

Sun 10/411:08 am -

1 stop23h 09m

Deal found 9/19

$284

Sun 11/229:35 pm -

1 stop28h 12m

Fri 12/43:47 am -

1 stop18h 42m

Deal found 9/21

$285

Wed 10/147:50 am -

2 stops18h 19m

Mon 10/197:20 am -

2 stops17h 01m

Deal found 9/22

$290

Fri 10/166:08 pm -

1 stop27h 47m

Mon 10/195:11 pm -

1 stop7h 10m

Deal found 9/22

$291

Sun 9/207:50 am -

1 stop8h 16m

Mon 9/286:33 am -

1 stop10h 45m

Deal found 9/18

$292

Thu 11/57:40 am -

2 stops15h 24m

Fri 11/133:55 am -

1 stop7h 26m

Deal found 9/20

$293

Tue 9/2211:12 am -

1 stop22h 23m

Sun 9/272:57 am -

1 stop7h 20m

Deal found 9/22

$294

Thu 11/1911:16 am -

1 stop11h 33m

Mon 11/238:53 am -

Nonstop4h 17m

Deal found 9/19

$295

Sun 9/207:50 am -

1 stop8h 16m

Thu 9/245:11 pm -

1 stop6h 59m

Deal found 9/18

$296

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 September 23, 2026.

Fri 10/305:29 pm -

Nonstop3h 53m

Tue 11/38:05 am -

Nonstop4h 04m

Deal found 9/18

$337

Thu 10/111:12 am -

1 stop23h 01m

Mon 10/511:08 am -

1 stop23h 09m

Deal found 9/22

$347

Wed 2/244:00 pm -

1 stop6h 50m

Wed 3/106:15 am -

1 stop9h 26m

Deal found 9/18

$366

Sat 10/38:40 am -

Nonstop3h 54m

Wed 10/73:56 pm -

1 stop9h 02m

Deal found 9/18

$342

Sun 11/2212:50 pm -

2 stops10h 07m

Fri 12/41:09 am -

2 stops11h 44m

Deal found 9/21

$346

Thu 10/1512:40 pm -

2 stops10h 29m

Sun 10/1812:15 am -

1 stop7h 04m

Deal found 9/22

$346

Sat 1/161:00 pm -

1 stop7h 00m

Fri 2/56:30 pm -

1 stop6h 50m

Deal found 9/21

$421

Thu 12/312:50 pm -

2 stops10h 07m

Mon 12/71:09 am -

2 stops11h 44m

Deal found 9/19

$346

Sat 11/2112:50 pm -

2 stops10h 07m

Wed 11/251:09 am -

1 stop7h 11m

Deal found 9/18

$371

Wed 11/185:29 pm -

Nonstop3h 53m

Sun 11/228:05 am -

Nonstop4h 04m

Deal found 9/20

$376

Sat 10/310:30 am -

2 stops12h 39m

Tue 10/612:15 am -

1 stop7h 04m

Deal found 9/18

$388

Thu 10/295:29 pm -

Nonstop3h 53m

Thu 11/58:05 am -

Nonstop4h 04m

Deal found 9/22

$437

Tue 1/128:22 am -

Nonstop3h 53m

Wed 1/205:50 pm -

Nonstop4h 06m

Deal found 9/21

$437

Sat 10/178:40 am -

Nonstop3h 54m

Tue 10/201:25 pm -

1 stop9h 34m

Deal found 9/19

$442

Mon 10/1912:40 pm -

2 stops10h 29m

Tue 10/2012:15 am -

1 stop7h 04m

Deal found 9/20

$446

Tue 12/810:10 am -

2 stops12h 47m

Tue 1/121:09 am -

1 stop7h 10m

Deal found 9/20

$446

Thu 10/1512:40 pm -

2 stops10h 29m

Mon 10/1912:15 am -

1 stop7h 04m

Deal found 9/18

$446

Thu 11/58:22 am -

Nonstop3h 53m

Thu 11/55:50 pm -

Nonstop4h 06m

Deal found 9/22

$456

Fri 10/238:40 am -

Nonstop3h 54m

Fri 10/304:50 pm -

Nonstop4h 06m

Deal found 9/22

$469

Wed 1/278:22 am -

Nonstop3h 53m

Tue 2/28:05 am -

Nonstop4h 04m

Deal found 9/20

$482

Tue 12/110:10 am -

1 stop9h 50m

Sun 12/68:05 am -

Nonstop4h 04m

Deal found 9/20

$505

Mon 11/26:10 am -

2 stops11h 20m

Sat 11/147:30 am -

2 stops18h 07m

Deal found 9/20

$2,514

Mon 12/216:05 am -

2 stops11h 25m

Mon 12/289:05 am -

1 stop12h 51m

Deal found 9/18

$2,589

Sun 12/2010:44 pm -

2 stops18h 46m

Mon 12/289:05 am -

2 stops13h 25m

Deal found 9/18

$2,589

Mon 12/216:10 am -

2 stops11h 20m

Mon 1/49:05 am -

2 stops31h 50m

Deal found 9/21

$2,664

Tue 11/36:10 am -

2 stops11h 20m

Wed 11/1111:40 am -

2 stops10h 47m

Deal found 9/20

$2,680

Mon 11/26:10 am -

2 stops11h 20m

Mon 11/911:40 am -

2 stops10h 47m

Deal found 9/20

$2,680

Sat 12/196:05 am -

2 stops11h 25m

Mon 12/289:05 am -

1 stop27h 04m

Deal found 9/18

$2,905

Sun 11/2210:35 pm -

2 stops18h 04m

Sun 11/298:30 am -

1 stop27h 39m

Deal found 9/22

$3,091

Tue 10/276:00 am -

2 stops12h 30m

Tue 11/311:40 am -

2 stops13h 57m

Deal found 9/20

$3,920

Last-minute flights from Dulles Intl to Puerto Rico
Discover last-minute flight deals from Dulles Intl to Puerto Rico. Data last updated September 23, 2026 and is based on user searches.

Tue 9/2211:12 am -

1 stop22h 23m

Sun 9/272:57 am -

1 stop7h 20m

Deal found 9/22

$294

Wed 9/2311:12 am -

1 stop14h 40m

Sun 9/277:00 am -

1 stop27h 17m

Deal found 9/21

$292

Sat 9/2611:12 am -

1 stop23h 01m

Sun 10/411:08 am -

1 stop23h 09m

Deal found 9/19

$284

Sun 9/277:50 am -

1 stop8h 16m

Sun 10/47:00 am -

1 stop27h 17m

Deal found 9/22

$293

Fri 10/211:12 am -

1 stop27h 06m

Sun 10/117:00 am -

1 stop13h 11m

Deal found 9/18

$297

Wed 10/147:50 am -

2 stops18h 19m

Mon 10/197:20 am -

2 stops17h 01m

Deal found 9/22

$290

Wed 10/149:06 pm -

2 stops16h 25m

Sat 10/175:11 pm -

1 stop7h 10m

Deal found 9/21

$295

Thu 10/1511:12 am -

1 stop22h 45m

Tue 10/2010:52 am -

1 stop23h 25m

Deal found 9/21

$255

Fri 10/166:08 pm -

1 stop27h 47m

Mon 10/195:11 pm -

1 stop7h 10m

Deal found 9/22

$291

Fri 10/166:08 pm -

1 stop27h 47m

Mon 10/193:00 am -

1 stop7h 17m

Deal found 9/22

$296

Tue 10/2011:12 am -

1 stop23h 10m

Wed 10/2811:22 am -

1 stop22h 59m

Deal found 9/19

$234

Wed 10/2111:12 am -

1 stop22h 45m

Fri 10/2310:52 am -

1 stop23h 25m

Deal found 9/20

$265

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 September 23, 2026.

Tue 10/2011:12 am -

1 stop23h 10m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/22

$119

Thu 10/17:50 am -

1 stop8h 16m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/23

$141

Mon 11/301:05 pm -

Nonstop3h 47m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/19

$142

Fri 10/167:50 am -

1 stop8h 16m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/18

$144

Sun 10/187:50 am -

1 stop8h 16m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/21

$146

Sun 11/89:06 pm -

2 stops41h 13m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/22

$147

Sat 10/36:13 pm -

1 stop19h 21m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/18

$148

Mon 11/29:06 pm -

2 stops41h 13m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/20

$149

Thu 10/159:06 pm -

2 stops29h 03m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/18

$150

Mon 9/2811:12 am -

1 stop22h 42m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/21

$150

Wed 10/147:50 am -

2 stops18h 19m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/18

$151

Sun 11/87:14 am -

1 stop16h 02m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/20

$153

Find flight deals from Dulles Intl to Puerto Rico

Round-trip from	$234 (Trip.com)
One-way from	$119 (Cheapflightsfares)
Popular in	June
Cheapest in	February
Average price	$370
Good round-trip deal	$407 or less
Good one-way deal	$224 or less

From Washington, D.C. Dulles Intl to Puerto Rico

Search Deals

One-way flight from Washington, D.C. Dulles Intl to Puerto Rico

Search Deals

Highest demand for flights based on searches. 9% potential increase in price ($40 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 1% potential price decrease ($7 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in September 2026

Search Deals

Price to beat on a round-trip flight from Washington, D.C. Dulles Intl to Puerto Rico.

Search Deals

Price to beat on a one-way flight from Washington, D.C. Dulles Intl to Puerto Rico.

Search Deals

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

Cheapest round-trip

Washington, D.C.Aguadilla

IAD Washington, D.C. Dulles Intl - BQN Aguadilla Borinquen

IADBQN

Washington, D.C. Dulles Intl

Tue 10/20

9:06 pm-9:57 am

2 stops36h 51m

Aguadilla Borinquen

Wed 12/31

12:00 am-11:00 pm

Nonstop0h 00m

$142

Washington, D.C.Aguadilla

IAD Washington, D.C. Dulles Intl - BQN Aguadilla Borinquen

IADBQN

Washington, D.C. Dulles Intl

Mon 10/12

9:06 pm-10:22 am

2 stops37h 16m

Aguadilla Borinquen

Wed 12/31

12:00 am-11:00 pm

Nonstop0h 00m

$160

Washington, D.C.San Juan

IAD Washington, D.C. Dulles Intl - SJU San Juan Luis Munoz Marin Intl

IADSJU

Washington, D.C. Dulles Intl

Tue 10/20

8:40 am-12:34 pm

Nonstop3h 54m

San Juan Luis Munoz Marin Intl

Wed 12/31

12:00 am-11:00 pm

Nonstop0h 00m

$169

Quickest round-trip

Washington, D.C.San Juan

IAD Washington, D.C. Dulles Intl - SJU San Juan Luis Munoz Marin Intl

IADSJU

Washington, D.C. Dulles Intl

Sat 10/31

5:29 pm-9:22 pm

Nonstop3h 53m

San Juan Luis Munoz Marin Intl

Wed 12/31

12:00 am-11:00 pm

Nonstop0h 00m

$169

Washington, D.C.Aguadilla

IAD Washington, D.C. Dulles Intl - BQN Aguadilla Borinquen

IADBQN

Washington, D.C. Dulles Intl

Sun 11/22

9:35 pm-2:47 am

1 stop28h 12m

Aguadilla Borinquen

Wed 12/31

12:00 am-11:00 pm

Nonstop0h 00m

$178

Washington, D.C.San Juan

IAD Washington, D.C. Dulles Intl - SJU San Juan Luis Munoz Marin Intl

IADSJU

Washington, D.C. Dulles Intl

Thu 12/31

1:40 pm-11:30 pm

1 stop8h 50m

San Juan Luis Munoz Marin Intl

Wed 12/31

12:00 am-11:00 pm

Nonstop0h 00m

$183

Washington, D.C.Aguadilla

IAD Washington, D.C. Dulles Intl - BQN Aguadilla Borinquen

IADBQN

Washington, D.C. Dulles Intl

Tue 11/24

9:35 pm-1:59 pm

1 stop15h 24m

Aguadilla Borinquen

Wed 12/31

12:00 am-11:00 pm

Nonstop0h 00m

$203

Washington, D.C.San Juan

IAD Washington, D.C. Dulles Intl - SJU San Juan Luis Munoz Marin Intl

IADSJU

Washington, D.C. Dulles Intl

Sat 1/9

10:15 am-9:00 pm

1 stop9h 45m

San Juan Luis Munoz Marin Intl

Wed 12/31

12:00 am-11:00 pm

Nonstop0h 00m

$210

Washington, D.C.San Juan

IAD Washington, D.C. Dulles Intl - SJU San Juan Luis Munoz Marin Intl

IADSJU

Washington, D.C. Dulles Intl

Fri 10/16

8:40 am-12:34 pm

Nonstop3h 54m

San Juan Luis Munoz Marin Intl

Wed 12/31

12:00 am-11:00 pm

Nonstop0h 00m

$218

Washington, D.C.San Juan

IAD Washington, D.C. Dulles Intl - SJU San Juan Luis Munoz Marin Intl

IADSJU

Washington, D.C. Dulles Intl

Sun 10/18

8:40 am-12:34 pm

Nonstop3h 54m

San Juan Luis Munoz Marin Intl

Wed 12/31

12:00 am-11:00 pm

Nonstop0h 00m

$219

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/22

Showing 1-10 of 48 resultsSorted by cheapest first

...

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.

IAD-BQN

IAD-SJU

IAD-VQS

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

IAD-PR0

IAD-BQN

IAD-SJU

IAD-VQS

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

Currently, February is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Puerto Rico (average of $315). Flying from Washington, D.C. Dulles Intl Airport to Puerto Rico in July is currently the most expensive (average of $538). 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?

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 32% on the flight price compared to flying in the morning, which is usually more expensive.

How often are flights from Washington, D.C. to Puerto Rico delayed?

About 21% of weekly flights between Washington, D.C. and Puerto Rico have experienced delays in the past year, with the average delay time being 127 minutes.

What is the most punctual flight time for Washington, D.C. to Puerto Rico flights?

Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving in the evening tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Wednesday tends to have the lowest number of delays on this route, whereas Tuesday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on Washington, D.C. to Puerto Rico flights?

Over the last year, United Airlines have had the lowest number of delays on this route, with just 19% of flights being delayed.

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

The best time to book flights from Washington, D.C. Dulles Intl Airport to Puerto Rico is 56 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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 Delta,United Airlines, andJetBlue. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Delta

7.8

Good

8,591 reviews

Reviews

1 / 20

4.0

Okay

Jennifer,Sep 2026

ORD - LGA

The flight crew was 30 minutes late to an am flight and then that caused a delay

Delta

7.8

Good

8,591 reviews

Delta

7.8

Good

8,591 reviews

Reviews

1 / 20

4.0

Okay

Jennifer,Sep 2026

ORD - LGA

The flight crew was 30 minutes late to an am flight and then that caused a delay

United Airlines

7.4

Good

10,226 reviews

Delta

7.8

Good

8,591 reviews

Reviews

1 / 20

4.0

Okay

Jennifer,Sep 2026

ORD - LGA

The flight crew was 30 minutes late to an am flight and then that caused a delay

JetBlue

7.1

Good

3,038 reviews

Delta

7.8

Good

8,591 reviews

Reviews

1 / 20

4.0

Okay

Jennifer,Sep 2026

ORD - LGA

The flight crew was 30 minutes late to an am flight and then that caused a delay

American Airlines

7.0

Good

12,075 reviews

Delta

7.8

Good

8,591 reviews

Reviews

1 / 20

4.0

Okay

Jennifer,Sep 2026

ORD - LGA

The flight crew was 30 minutes late to an am flight and then that caused a delay

Frontier

5.6

Fair

2,579 reviews

Delta

7.8

Good

8,591 reviews

Reviews

1 / 20

4.0

Okay

Jennifer,Sep 2026

ORD - LGA

The flight crew was 30 minutes late to an am flight and then that caused a delay

Related info for your journey

How long is the flight from Washington, D.C. Dulles Intl Airport to Puerto Rico?
Airlines like United Airlines, Frontier, and Delta fly from Washington, D.C. Dulles Intl Airport to Puerto Rico in about 9h 50m. The time it takes to get you to your destination can typically vary by up to 13h 11m. 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 Frontier ($54), Delta ($112), and United Airlines ($126).
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 - Culebra.
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 (62%), United Airlines (62%), Brussels Airlines (52%).
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 $178. On average you can expect to pay $380. The most popular route, (Washington, D.C. Dulles Intl - San Juan Luis Munoz Marin Intl), can usually be booked for $239.
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, February is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Puerto Rico (average of $315). Flying from Washington, D.C. Dulles Intl Airport to Puerto Rico in July is currently the most expensive (average of $538). 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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Top 5 airlines flying from Dulles Intl to Puerto Rico

Airline	Cheapest	Average	Flexibility	On-time
Frontier	Cheapest$88	Average$323	FlexibilityNo cancel fee	On-time62%
Delta	Cheapest$136	Average$342	FlexibilityNo cancel fee	On-timeN/A
JetBlue	Cheapest$240	Average$465	FlexibilityNo cancel fee	On-time62%
United Airlines	Cheapest$266	Average$487	FlexibilityNo cancel fee	On-time69%
American Airlines	Cheapest$278	Average$438	FlexibilityNo cancel fee	On-time71%

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$119+ Cheap flights from Dulles Intl (IAD) to Puerto Rico

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 10/20. Fares are subject to change and may not be available on all flights or dates of travel.

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Cheap 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 September 23, 2026.

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 September 23, 2026.

Best flights from Dulles Intl to Puerto RicoDiscover 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 September 23, 2026.

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 September 23, 2026.

Last-minute flights from Dulles Intl to Puerto RicoDiscover last-minute flight deals from Dulles Intl to Puerto Rico. Data last updated September 23, 2026 and is based on user searches.

Discover last-minute flight deals from Dulles Intl to Puerto Rico. Data last updated September 23, 2026 and is based on user searches.

One-way flights from Dulles Intl to Puerto RicoSearch for one-way flight options from Dulles Intl to Puerto Rico. Find affordable one-way fares based on user searches. Data last updated September 23, 2026.

Search for one-way flight options from Dulles Intl to Puerto Rico. Find affordable one-way fares based on user searches. Data last updated September 23, 2026.

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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.

Cheapflights Insights

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 September 23, 2026.

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 32% on the flight price compared to flying in the morning, which is usually more expensive.

How often are flights from Washington, D.C. to Puerto Rico delayed?

About 21% of weekly flights between Washington, D.C. and Puerto Rico have experienced delays in the past year, with the average delay time being 127 minutes.

What is the most punctual flight time for Washington, D.C. to Puerto Rico flights?

Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving in the evening tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Wednesday tends to have the lowest number of delays on this route, whereas Tuesday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on Washington, D.C. to Puerto Rico flights?

Over the last year, United Airlines have had the lowest number of delays on this route, with just 19% of flights being delayed.

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

The best time to book flights from Washington, D.C. Dulles Intl Airport to Puerto Rico is 56 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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 Delta,United Airlines, andJetBlue. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

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

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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Complete your trip

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Dulles Intl and Puerto Rico flights

Browse other Dulles Intl and Puerto Rico flight options. Last updated on September 23, 2026.

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Dulles Intl to Puerto Rico flights

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Top 5 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 September 23, 2026.

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 September 23, 2026.

Last-minute flights from Dulles Intl to Puerto Rico
Discover last-minute flight deals from Dulles Intl to Puerto Rico. Data last updated September 23, 2026 and is based on user searches.

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 September 23, 2026.