What is the cheapest airline that flies from Washington, D.C. Dulles Intl to Puerto Rico?

Frontier, United Airlines, and American Airlines are the most popular carriers operating from Washington, D.C. Dulles Intl to Puerto Rico

What airlines fly to Puerto Rico?

United Airlines, Frontier and Delta are the top three most popular airlines that fly to Puerto Rico from Washington, D.C. Dulles Intl Airport according to our data. United Airlines is the first choice among our users, with 65% of people opting to fly with this airline when traveling to Puerto Rico. Keep in mind that there are 6 different airlines that fly to Puerto Rico on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from Washington, D.C. Dulles Intl Airport to Puerto Rico?

Prices for flights from Washington, D.C. Dulles Intl Airport to Puerto Rico are refreshed on a daily basis.

How many operators does momondo search for flights from Washington, D.C. Dulles Intl Airport to Puerto Rico?

As of August 2025, there are 6 operators available to choose from for flights from Washington, D.C. Dulles Intl Airport to Puerto Rico.

How old do you have to be to fly from Washington, D.C. Dulles Intl Airport to Puerto Rico?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Washington, D.C. Dulles Intl Airport to Puerto Rico.

What documentation or ID do you need to fly to Puerto Rico?

The travel and health documents required for your trip to Puerto Rico can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Puerto Rico. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$51 Cheap Flights from Washington, D.C. Dulles Intl Airport to Puerto Rico in 2025

Q: How many flights depart from Washington, D.C. Dulles Intl Airport to Puerto Rico on average per day?

As of August 2025, 2 flights take off from Washington, D.C. Dulles Intl Airport and land in Puerto Rico each day. The most common flight departure time for this route is 8:00AM, with 66% of daily flights taking off at noon.

Q: How many flights depart from Washington, D.C. Dulles Intl Airport to Puerto Rico on average per week?

As of August 2025, 15 flights take off from Washington, D.C. Dulles Intl Airport and land in Puerto Rico each week. The most common flight departure day for this route is Tue, with 20% of weekly flights taking off on this day.

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Find the cheapest flights from Washington, D.C. Dulles Intl Airport to Puerto Rico

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

9:07 pm - 12:59 amIAD-SJU

3h 52mnonstop

4:26 pm - 8:22 pmSJU-IAD

3h 56mnonstop

$145Frontier

Find Deal

jue., oct. 23 - dom., oct. 26

9:07 pm - 12:59 amIAD-SJU

3h 52mnonstop

4:26 pm - 8:22 pmSJU-IAD

3h 56mnonstop

$148Frontier

Find Deal

dom., oct. 19 - jue., oct. 23

10:09 am - 3:01 pmIAD-SJU

3h 52mnonstop

6:25 am - 9:21 amSJU-IAD

3h 56mnonstop

$155Frontier

Find Deal

dom., nov. 9 - dom., nov. 16

10:09 am - 3:01 pmIAD-SJU

3h 52mnonstop

6:25 am - 9:21 amSJU-IAD

3h 56mnonstop

$159Frontier

Find Deal

dom., nov. 9 - dom., nov. 16

6:44 am - 3:54 pmIAD-SJU

8h 10m1 stop

2:05 pm - 7:21 pmSJU-IAD

6h 16m1 stop

$205American Airlines

Find Deal

dom., nov. 9 - jue., nov. 13

6:01 am - 3:42 pmIAD-SJU

9h 41m1 stop

4:55 pm - 8:52 pmSJU-IAD

3h 57mnonstop

$211United Airlines

Find Deal

mar., oct. 21 - vie., oct. 24

12:35 pm - 11:17 pmIAD-SJU

9h 42m1 stop

7:30 am - 1:57 pmSJU-IAD

7h 27m1 stop

$215Delta

Find Deal

mar., nov. 11 - vie., nov. 14

12:35 pm - 11:57 pmIAD-BQN

10h 22m2 stops

1:09 am - 11:31 amBQN-IAD

11h 22m2 stops

$285United Airlines

Find Deal

sáb., ene. 17 - vie., ene. 23

9:30 am - 2:37 amIAD-BQN

17h 07m2 stops

3:32 am - 6:24 pmBQN-IAD

14h 52m1 stop

$371

Find Deal

mié., sep. 3 - dom., sep. 7

9:30 am - 2:48 amIAD-BQN

17h 18m2 stops

3:39 am - 8:48 pmBQN-IAD

17h 09m1 stop

$476

Find Deal

mié., ago. 27 - sáb., ago. 30

Frontier flights from Washington, D.C. Dulles Intl Airport to Puerto Rico

Our best Frontier deals on Washington, D.C. Dulles Intl Airport to Puerto Rico flight tickets

Frontier

Oct 23

IAD9:07 pmWashington, D.C. Dulles Intl

3h 52m

SJU12:59 amSan Juan Luis Munoz Marin Intl

Oct 26

SJU4:26 pmSan Juan Luis Munoz Marin Intl

3h 56m

IAD8:22 pmWashington, D.C. Dulles Intl

$145

Find similar

Frontier

Oct 19

IAD9:07 pmWashington, D.C. Dulles Intl

3h 52m

SJU12:59 amSan Juan Luis Munoz Marin Intl

Oct 23

SJU4:26 pmSan Juan Luis Munoz Marin Intl

3h 56m

IAD8:22 pmWashington, D.C. Dulles Intl

$148

Find similar

Frontier

Nov 9

IAD10:09 amWashington, D.C. Dulles Intl

3h 52m

SJU3:01 pmSan Juan Luis Munoz Marin Intl

Nov 16

SJU6:25 amSan Juan Luis Munoz Marin Intl

3h 56m

IAD9:21 amWashington, D.C. Dulles Intl

$155

Find similar

United Airlines flights from Washington, D.C. Dulles Intl Airport to Puerto Rico

Our best United Airlines deals on Washington, D.C. Dulles Intl Airport to Puerto Rico flight tickets

United Airlines

Oct 21

IAD6:01 amWashington, D.C. Dulles Intl

9h 41m

1 stop

SJU3:42 pmSan Juan Luis Munoz Marin Intl

Oct 24

SJU4:55 pmSan Juan Luis Munoz Marin Intl

3h 57m

IAD8:52 pmWashington, D.C. Dulles Intl

$211

Find similar

United Airlines

Jan 17

IAD12:35 pmWashington, D.C. Dulles Intl

10h 22m

2 stops

BQN11:57 pmAguadilla Borinquen

Jan 23

BQN1:09 amAguadilla Borinquen

11h 22m

2 stops

IAD11:31 amWashington, D.C. Dulles Intl

$285

Find similar

United Airlines

Sep 2

IAD12:46 pmWashington, D.C. Dulles Intl

10h 23m

2 stops

BQN11:09 pmAguadilla Borinquen

Sep 8

BQN12:15 amAguadilla Borinquen

14h 22m

2 stops

IAD2:37 pmWashington, D.C. Dulles Intl

$375

Find similar

momondo 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.San Juan

IAD - SJU

IADSJU

Washington, D.C. Dulles Intl

jue. 10/23

9:07 pm-12:59 am

Nonstop3h 52m

San Juan Luis Munoz Marin Intl

dom. 10/26

4:26 pm-8:22 pm

Nonstop3h 56m

$145

Washington, D.C.San Juan

IAD - SJU

IADSJU

Washington, D.C. Dulles Intl

dom. 10/19

9:07 pm-12:59 am

Nonstop3h 52m

San Juan Luis Munoz Marin Intl

jue. 10/23

4:26 pm-8:22 pm

Nonstop3h 56m

$148

Washington, D.C.San Juan

IAD - SJU

IADSJU

Washington, D.C. Dulles Intl

dom. 11/9

10:09 am-3:01 pm

Nonstop3h 52m

San Juan Luis Munoz Marin Intl

dom. 11/16

6:25 am-9:21 am

Nonstop3h 56m

$155

Washington, D.C.San Juan

IAD - SJU

IADSJU

Washington, D.C. Dulles Intl

dom. 11/9

10:09 am-3:01 pm

Nonstop3h 52m

San Juan Luis Munoz Marin Intl

dom. 11/16

6:25 am-9:21 am

Nonstop3h 56m

$159

Washington, D.C.San Juan

IAD - SJU

IADSJU

Washington, D.C. Dulles Intl

dom. 11/9

6:44 am-3:54 pm

1 stop8h 10m

San Juan Luis Munoz Marin Intl

jue. 11/13

2:05 pm-7:21 pm

1 stop6h 16m

$205

Washington, D.C.San Juan

IAD - SJU

IADSJU

Washington, D.C. Dulles Intl

mar. 10/21

6:01 am-3:42 pm

1 stop9h 41m

San Juan Luis Munoz Marin Intl

vie. 10/24

4:55 pm-8:52 pm

Nonstop3h 57m

$211

Washington, D.C.San Juan

IAD - SJU

IADSJU

Washington, D.C. Dulles Intl

mar. 11/11

12:35 pm-11:17 pm

1 stop9h 42m

San Juan Luis Munoz Marin Intl

vie. 11/14

7:30 am-1:57 pm

1 stop7h 27m

$215

Washington, D.C.Aguadilla

IAD - BQN

IADBQN

Washington, D.C. Dulles Intl

sáb. 1/17

12:35 pm-11:57 pm

2 stops10h 22m

Aguadilla Borinquen

vie. 1/23

1:09 am-11:31 am

2 stops11h 22m

$285

Washington, D.C.Aguadilla

IAD - BQN

IADBQN

Washington, D.C. Dulles Intl

mié. 9/3

9:30 am-2:37 am

2 stops17h 07m

Aguadilla Borinquen

dom. 9/7

3:32 am-6:24 pm

1 stop14h 52m

$371

Washington, D.C.Aguadilla

IAD - BQN

IADBQN

Washington, D.C. Dulles Intl

mié. 8/27

9:30 am-2:48 am

2 stops17h 18m

Aguadilla Borinquen

sáb. 8/30

3:39 am-8:48 pm

1 stop17h 09m

$476

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Washington, D.C. Dulles Intl Airport to Puerto Rico

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Other information

What is the cheapest month to fly to Puerto Rico?

If you don’t want to visit Puerto Rico in June, then you should wait until July to fly from Washington, D.C. Dulles Intl Airport, when ticket prices are also cheap, with an average price of $362.

What is the cheapest day to depart on your flight to Puerto Rico?

On average, the least expensive day to fly to Puerto Rico from Washington, D.C. Dulles Intl Airport is on a Tuesday. momondo users have found tickets for Tuesday departures for as low as $328. However, this price may fluctuate depending on the airline, the season, and holidays. The most expensive day to fly to Puerto Rico is Friday, with ticket prices averaging around $547.

What is the cheapest time of day to depart on your flight to Puerto Rico?

Our most recent data shows that the best time of day to fly to Puerto Rico is at noon. Flights from Washington, D.C. Dulles Intl Airport to Puerto Rico during this time can be as low as $238. In contrast, the most expensive time of day to depart to Puerto Rico is in the evening when prices are around $698.

What is the cheapest Washington, D.C. Dulles Intl to Puerto Rico flight route?

Fly from Washington, D.C. Dulles Intl to San Juan Luis Munoz Marin Intl for the best Washington, D.C. Dulles Intl - Puerto Rico flight prices

How far in advance should I book a flight to Puerto Rico?

You are more likely to see cheaper flights to Puerto Rico from Washington, D.C. Dulles Intl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Puerto Rico for around $436 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Puerto Rico from Washington, D.C. Dulles Intl Airport for as low as $344 on momondo.

What cabin class options are available on Washington, D.C. Dulles Intl to Puerto Rico flights?

There are 4 cabin classes available to choose from on Washington, D.C. Dulles Intl to Puerto Rico flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Washington, D.C. Dulles Intl Airport to Puerto Rico flights?

No. A direct flight is the cheapest option for a flight between Washington, D.C. Dulles Intl Airport to Puerto Rico.

Cheap Washington, D.C. Dulles Intl Airport to Puerto Rico flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Washington, D.C. Dulles Intl Airport to Puerto Rico

Best Price Found	$51
Fastest flight time	3h 52m
Direct flights	Every day
Airports in Puerto Rico	3 airports

The best one-way flight to Puerto Rico from Washington, D.C. Dulles Intl Airport in the past 72 hours is $51. The best round-trip flight deal from Washington, D.C. Dulles Intl Airport to Puerto Rico found on momondo in the last 72 hours is $145.

The fastest flight from Washington, D.C. Dulles Intl Airport to Puerto Rico takes 3h 52m

Direct flights go from Washington, D.C. Dulles Intl Airport to Puerto Rico every day.

There are 3 airports near Puerto Rico: Mayagüez Eugenio M De Hostos (MAZ), Culebra (CPX), San Juan Luis Munoz Marin Intl (SJU)

Search flight deals

When did momondo last update prices for flights from Washington, D.C. Dulles Intl Airport to Puerto Rico?
Prices for flights from Washington, D.C. Dulles Intl Airport to Puerto Rico are refreshed on a daily basis.
How many operators does momondo search for flights from Washington, D.C. Dulles Intl Airport to Puerto Rico?
As of August 2025, there are 6 operators available to choose from for flights from Washington, D.C. Dulles Intl Airport to Puerto Rico.
How old do you have to be to fly from Washington, D.C. Dulles Intl Airport to Puerto Rico?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Washington, D.C. Dulles Intl Airport to Puerto Rico.
What documentation or ID do you need to fly to Puerto Rico?
The travel and health documents required for your trip to Puerto Rico can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Puerto Rico. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular plane model from Washington, D.C. Dulles Intl Airport to Puerto Rico?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from Washington, D.C. Dulles Intl Airport to Puerto Rico is Boeing 737 MAX 8 (26.74% of total bookings). The next most popular plane models are Airbus A321-100/200 (19.78%), Airbus A321neo (18.50%), and Airbus A320neo (12.74%).

Best airlines flying from Washington, D.C. Dulles Intl Airport to Puerto Rico

Compare and see reviews for airlines that fly from Washington, D.C. Dulles Intl Airport to Puerto Rico with momondo

Airline	Rating	Free Cancellation	Price
Frontier	PriceFrom $82	Free Cancellation	Rating 5.8 3,222 reviews	Search Frontier flights
Spirit Airlines	PriceFrom $135	Free Cancellation	Rating 6.3 8,043 reviews	Search Spirit Airlines flights
JetBlue	PriceFrom $180	Free Cancellation	Rating 7.2 2,916 reviews	Search JetBlue flights
Delta	PriceFrom $215	Free Cancellation	Rating 8.0 7,978 reviews	Search Delta flights
American Airlines	PriceFrom $224	Free Cancellation	Rating 7.2 10,000 reviews	Search American Airlines flights
United Airlines	PriceFrom $281	Free Cancellation	Rating 7.4 8,922 reviews	Search United Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Washington, D.C. to Puerto Rico?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Washington, D.C. to Puerto Rico. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Washington, D.C. to Puerto Rico with flexible booking policies on momondo?

Yes. All flights to Puerto Rico from Washington, D.C. on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Washington, D.C. to Puerto Rico?

Once all potential Washington, D.C. to Puerto Rico flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Washington, D.C. to Puerto Rico right now. Can momondo alert me if prices change?

Price alerts on flights to Puerto Rico from Washington, D.C. are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

An easier way to manage your Puerto Rico trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

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dom. 8/17

dom. 8/24

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Find better results for your trip to Puerto Rico

Popular cities in Puerto Rico

Flights to San Juanfrom $82

Flights to Aguadillafrom $176

Flights to Mayagüezfrom $317

Washington, D.C. Dulles Intl Airport flight routes

Washington, D.C. Dulles Intl to Valparaiso Destin-Ft Walton Beach

Washington, D.C. Dulles Intl to Savannah/Hilton Head

Washington, D.C. Dulles Intl to South Bend/Michiana

Washington, D.C. Dulles Intl to Wilmington New Hanover County

Washington, D.C. Dulles Intl to Tweed-New Haven

Washington, D.C. Dulles Intl to Nashville Intl

Cheap flights from Washington, D.C. Dulles Intl Airport to Puerto Rico from $51

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Big names and deals

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Find the cheapest flights from Washington, D.C. Dulles Intl Airport to Puerto Rico

Cheap round-trip flights

Cheap one-way flights

Cheap last minute flights

Cheap direct flights

Frontier flights from Washington, D.C. Dulles Intl Airport to Puerto Rico

Our best Frontier deals on Washington, D.C. Dulles Intl Airport to Puerto Rico flight tickets

United Airlines flights from Washington, D.C. Dulles Intl Airport to Puerto Rico

Our best United Airlines deals on Washington, D.C. Dulles Intl Airport to Puerto Rico flight tickets

momondo 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.

See travel insights to Puerto Rico from

How to get the cheapest flight ticket from Washington, D.C. Dulles Intl Airport to Puerto Rico

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Puerto Rico?

If you don’t want to visit Puerto Rico in June, then you should wait until July to fly from Washington, D.C. Dulles Intl Airport, when ticket prices are also cheap, with an average price of $362.

What is the cheapest day to depart on your flight to Puerto Rico?

What is the cheapest time of day to depart on your flight to Puerto Rico?

What is the cheapest Washington, D.C. Dulles Intl to Puerto Rico flight route?

Fly from Washington, D.C. Dulles Intl to San Juan Luis Munoz Marin Intl for the best Washington, D.C. Dulles Intl - Puerto Rico flight prices

How far in advance should I book a flight to Puerto Rico?

What cabin class options are available on Washington, D.C. Dulles Intl to Puerto Rico flights?

There are 4 cabin classes available to choose from on Washington, D.C. Dulles Intl to Puerto Rico flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Washington, D.C. Dulles Intl Airport to Puerto Rico flights?

No. A direct flight is the cheapest option for a flight between Washington, D.C. Dulles Intl Airport to Puerto Rico.

What is the cheapest airline that flies from Washington, D.C. Dulles Intl to Puerto Rico?

Frontier, United Airlines, and American Airlines are the most popular carriers operating from Washington, D.C. Dulles Intl to Puerto Rico

What airlines fly to Puerto Rico?

How many flights depart from Washington, D.C. Dulles Intl Airport to Puerto Rico on average per day?

As of August 2025, 2 flights take off from Washington, D.C. Dulles Intl Airport and land in Puerto Rico each day. The most common flight departure time for this route is 8:00AM, with 66% of daily flights taking off at noon.

How many flights depart from Washington, D.C. Dulles Intl Airport to Puerto Rico on average per week?

As of August 2025, 15 flights take off from Washington, D.C. Dulles Intl Airport and land in Puerto Rico each week. The most common flight departure day for this route is Tue, with 20% of weekly flights taking off on this day.

Cheap Washington, D.C. Dulles Intl Airport to Puerto Rico flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Washington, D.C. Dulles Intl Airport to Puerto Rico

Best Price Found

Fastest flight time

Direct flights

Airports in Puerto Rico

When did momondo last update prices for flights from Washington, D.C. Dulles Intl Airport to Puerto Rico?

How many operators does momondo search for flights from Washington, D.C. Dulles Intl Airport to Puerto Rico?

How old do you have to be to fly from Washington, D.C. Dulles Intl Airport to Puerto Rico?

What documentation or ID do you need to fly to Puerto Rico?

What is the most popular plane model from Washington, D.C. Dulles Intl Airport to Puerto Rico?

Best airlines flying from Washington, D.C. Dulles Intl Airport to Puerto Rico

Compare and see reviews for airlines that fly from Washington, D.C. Dulles Intl Airport to Puerto Rico with momondo

Why use momondo?

Why should I use momondo to find a flight deal from Washington, D.C. to Puerto Rico?

Can I find flights from Washington, D.C. to Puerto Rico with flexible booking policies on momondo?

How can momondo help me find flights from Washington, D.C. to Puerto Rico?

I’m not ready to book a flight from Washington, D.C. to Puerto Rico right now. Can momondo alert me if prices change?

An easier way to manage your Puerto Rico trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Puerto Rico

Popular cities in Puerto Rico

Popular flights according to clicks in the last 7 days on momondo