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

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

How long does it take to fly to Washington, D.C. Dulles Intl Airport?

Flight times from Puerto Rico to Washington, D.C. Dulles Intl Airport vary, but if you’re flying out of San Juan and flying into Washington, D.C. Dulles Intl Airport (one of the most popular routes), then the duration is 3h 59m on average. Another popular route from Puerto Rico to Washington, D.C. Dulles Intl Airport is flying from Ponce to Washington, D.C. Dulles Intl Airport, which will take roughly 10h 36m. Keep in mind that layovers or delays could extend your travel time.

What airlines fly to Washington, D.C. Dulles Intl Airport?

United Airlines, Frontier and Delta are the top three most popular airlines that fly to Washington, D.C. Dulles Intl Airport from Puerto Rico according to our data. United Airlines is the first choice among our users, with 61% of people opting to fly with this airline when traveling to Washington, D.C. Dulles Intl Airport. Keep in mind that there are 3 different airlines that fly to Washington, D.C. Dulles Intl Airport on a routine basis, so you have a few additional options to choose from.

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

As of December 2025, there are 3 operators available to choose from for flights from Puerto Rico to Washington, D.C. Dulles Intl Airport.

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

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

What documentation or ID do you need to fly to Washington, D.C. Dulles Intl Airport?

The travel and health documents required for your trip to Washington, D.C. Dulles Intl Airport 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 Washington, D.C. Dulles Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$91 Cheap Flights from Puerto Rico to Washington, D.C. Dulles Intl Airport in 2025/26

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

The number of flights available between Puerto Rico and Washington, D.C. Dulles Intl Airport is 4 per day as of December 2025. The most frequent departure time is 8:00AM, with 50% of daily flights leaving at noon.

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

As of December 2025, 29 flights take off from Puerto Rico and land in Washington, D.C. Dulles Intl Airport each week. The most common flight departure day for this route is Sun, with 17% of weekly flights taking off on this day.

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Recent round-trip flight deals from Puerto Rico to Washington, D.C.

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5:25 pm - 7:20 am

SJU

IAD

14h 55m1 stop

8:20 pm - 1:05 am

IAD

SJU

3h 45mnonstop

$162Frontier

Wed, Feb 18 - Sat, Feb 21

7:34 pm - 8:04 am

SJU

IAD

13h 30m1 stop

3:00 pm - 2:30 am

IAD

SJU

10h 30m1 stop

$167Frontier

Sat, Jan 17 - Mon, Jan 19

6:48 pm - 11:07 am

SJU

IAD

17h 19m2 stops

6:00 am - 3:27 pm

IAD

SJU

8h 27m1 stop

$173Frontier

Fri, Jan 16 - Mon, Jan 19

6:00 am - 1:03 pm

SJU

IAD

8h 03m1 stop

10:08 pm - 3:35 pm

IAD

SJU

16h 27m2 stops

$180Multiple Airlines

Fri, Jan 16 - Mon, Jan 19

7:34 pm - 8:04 am

SJU

IAD

13h 30m1 stop

6:00 am - 3:27 pm

IAD

SJU

8h 27m1 stop

$183Frontier

Wed, Jan 14 - Sun, Jan 18

4:36 pm - 8:40 am

SJU

IAD

17h 04m1 stop

1:30 pm - 12:34 am

IAD

SJU

10h 04m1 stop

$184Frontier

Thu, Jan 29 - Sun, Feb 1

5:45 am - 1:01 pm

SJU

IAD

8h 16m1 stop

7:19 pm - 12:13 am

IAD

SJU

3h 54mnonstop

$185Frontier

Thu, Jan 8 - Sun, Jan 11

7:21 pm - 11:43 am

SJU

IAD

17h 22m2 stops

4:17 pm - 9:02 pm

IAD

SJU

3h 45mnonstop

$186Frontier

Tue, Jan 13 - Sat, Jan 17

7:21 pm - 11:43 am

SJU

IAD

17h 22m2 stops

9:03 pm - 2:23 pm

IAD

SJU

16h 20m1 stop

$190Frontier

Tue, Jan 13 - Sat, Jan 17

6:30 am - 2:08 pm

SJU

IAD

8h 38m1 stop

7:19 pm - 12:13 am

IAD

SJU

3h 54mnonstop

$191Frontier

Sun, Jan 11 - Sun, Jan 11

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

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

Delta

Feb 12

SJU6:27 pmSan Juan Luis Munoz Marin Intl

6h 57m

1 stop

IAD12:24 amWashington, D.C. Dulles Intl

Feb 17

IAD12:23 pmWashington, D.C. Dulles Intl

10h 33m

1 stop

SJU11:56 pmSan Juan Luis Munoz Marin Intl

$225

Find similar

Delta

Feb 5

SJU6:27 pmSan Juan Luis Munoz Marin Intl

6h 57m

1 stop

IAD12:24 amWashington, D.C. Dulles Intl

Feb 10

IAD6:00 amWashington, D.C. Dulles Intl

7h 31m

1 stop

SJU2:31 pmSan Juan Luis Munoz Marin Intl

$238

Find similar

Delta

Dec 25

SJU7:00 amSan Juan Luis Munoz Marin Intl

10h 23m

1 stop

IAD4:23 pmWashington, D.C. Dulles Intl

Jan 1

IAD5:06 pmWashington, D.C. Dulles Intl

8h 21m

1 stop

SJU2:27 amSan Juan Luis Munoz Marin Intl

$251

Find similar

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

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

Frontier

Dec 20

SJU4:18 pmSan Juan Luis Munoz Marin Intl

4h 13m

IAD7:31 pmWashington, D.C. Dulles Intl

Jan 4

IAD8:26 pmWashington, D.C. Dulles Intl

3h 54m

SJU1:20 amSan Juan Luis Munoz Marin Intl

$164

Find similar

Frontier

Jan 17

SJU7:34 pmSan Juan Luis Munoz Marin Intl

13h 30m

1 stop

IAD8:04 amWashington, D.C. Dulles Intl

Jan 19

IAD3:00 pmWashington, D.C. Dulles Intl

10h 30m

1 stop

SJU2:30 amSan Juan Luis Munoz Marin Intl

$167

Find similar

Frontier

Feb 20

SJU4:17 pmSan Juan Luis Munoz Marin Intl

4h 08m

IAD7:25 pmWashington, D.C. Dulles Intl

Mar 1

IAD10:10 amWashington, D.C. Dulles Intl

13h 44m

1 stop

SJU12:54 amSan Juan Luis Munoz Marin Intl

$171

Find similar

momondo Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

San JuanWashington, D.C.

SJU - IAD

SJUIAD

San Juan Luis Munoz Marin Intl

Wed 2/18

5:25 pm-7:20 am

1 stop14h 55m

Washington, D.C. Dulles Intl

Sat 2/21

8:20 pm-1:05 am

Nonstop3h 45m

$162

San JuanWashington, D.C.

SJU - IAD

SJUIAD

San Juan Luis Munoz Marin Intl

Sat 1/17

7:34 pm-8:04 am

1 stop13h 30m

Washington, D.C. Dulles Intl

Mon 1/19

3:00 pm-2:30 am

1 stop10h 30m

$167

San JuanWashington, D.C.

SJU - IAD

SJUIAD

San Juan Luis Munoz Marin Intl

Fri 1/16

6:48 pm-11:07 am

2 stops17h 19m

Washington, D.C. Dulles Intl

Mon 1/19

6:00 am-3:27 pm

1 stop8h 27m

$173

San JuanWashington, D.C.

SJU - IAD

SJUIAD

San Juan Luis Munoz Marin Intl

Fri 1/16

6:00 am-1:03 pm

1 stop8h 03m

Washington, D.C. Dulles Intl

Mon 1/19

10:08 pm-3:35 pm

2 stops16h 27m

$180

San JuanWashington, D.C.

SJU - IAD

SJUIAD

San Juan Luis Munoz Marin Intl

Wed 1/14

7:34 pm-8:04 am

1 stop13h 30m

Washington, D.C. Dulles Intl

Sun 1/18

6:00 am-3:27 pm

1 stop8h 27m

$183

San JuanWashington, D.C.

SJU - IAD

SJUIAD

San Juan Luis Munoz Marin Intl

Thu 1/29

4:36 pm-8:40 am

1 stop17h 04m

Washington, D.C. Dulles Intl

Sun 2/1

1:30 pm-12:34 am

1 stop10h 04m

$184

San JuanWashington, D.C.

SJU - IAD

SJUIAD

San Juan Luis Munoz Marin Intl

Thu 1/8

5:45 am-1:01 pm

1 stop8h 16m

Washington, D.C. Dulles Intl

Sun 1/11

7:19 pm-12:13 am

Nonstop3h 54m

$185

San JuanWashington, D.C.

SJU - IAD

SJUIAD

San Juan Luis Munoz Marin Intl

Tue 1/13

7:21 pm-11:43 am

2 stops17h 22m

Washington, D.C. Dulles Intl

Sat 1/17

4:17 pm-9:02 pm

Nonstop3h 45m

$186

San JuanWashington, D.C.

SJU - IAD

SJUIAD

San Juan Luis Munoz Marin Intl

Tue 1/13

7:21 pm-11:43 am

2 stops17h 22m

Washington, D.C. Dulles Intl

Sat 1/17

9:03 pm-2:23 pm

1 stop16h 20m

$190

San JuanWashington, D.C.

SJU - IAD

SJUIAD

San Juan Luis Munoz Marin Intl

Sun 1/11

6:30 am-2:08 pm

1 stop8h 38m

Washington, D.C. Dulles Intl

Sun 1/11

7:19 pm-12:13 am

Nonstop3h 54m

$191

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Showing 1-10 of 20 resultsSorted by cheapest first

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

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 Washington, D.C. Dulles Intl Airport?

In general, July is the cheapest month to fly from Puerto Rico to Washington, D.C. Dulles Intl Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $223. If you aren’t able to travel to Washington, D.C. Dulles Intl Airport during the month of July, then flying in March is also cheap. Prices for this month can be found on momondo for an average of $249.

What is the cheapest day to depart on your flight to Washington, D.C. Dulles Intl Airport?

Our data shows that Thursday is the least expensive day to fly to Washington, D.C. Dulles Intl Airport. Tickets to fly out on this day can be as low as $330. When flying out on a Monday, the most expensive travel day of the week, you can expect to see flight prices from Puerto Rico to Washington, D.C. Dulles Intl Airport for around $745.

What is the cheapest time of day to depart on your flight to Washington, D.C. Dulles Intl Airport?

Flying to Washington, D.C. Dulles Intl Airport from Puerto Rico at noon is the least expensive time of day to depart. momondo users have found prices as low as $369 when looking at flights departing at noon. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are $491 on average. Flights to Washington, D.C. Dulles Intl Airport from Puerto Rico in the afternoon are generally more expensive because this time of day is more convenient for travelers’ schedules.

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

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

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

You are more likely to see cheaper flights to Washington, D.C. Dulles Intl Airport from Puerto Rico when booking weeks ahead of your departure date. In general, you can expect to find flights to Washington, D.C. Dulles Intl Airport for around $346 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Washington, D.C. Dulles Intl Airport from Puerto Rico for as low as $205 on momondo.

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

There are 4 cabin classes available to choose from on Puerto Rico to Washington, D.C. Dulles Intl 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 Puerto Rico to Washington, D.C. Dulles Intl Airport flights?

You could potentially save up to 33% on your flight if you consider stops on a Puerto Rico to Washington, D.C. Dulles Intl Airport flight.

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

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

Best Price Found	$141
Fastest flight time	3h 59m
Direct flights	Every day

The best one-way flight to Washington, D.C. Dulles Intl Airport from Puerto Rico in the past 72 hours is $141. The best round-trip flight deal from Puerto Rico to Washington, D.C. Dulles Intl Airport found on momondo in the last 72 hours is $330.

The fastest flight from Puerto Rico to Washington, D.C. Dulles Intl Airport takes 3h 59m

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

Search flight deals

When did momondo last update prices for flights from Puerto Rico to Washington, D.C. Dulles Intl Airport?
Prices for flights from Puerto Rico to Washington, D.C. Dulles Intl Airport are updated daily.
How many operators does momondo search for flights from Puerto Rico to Washington, D.C. Dulles Intl Airport?
As of December 2025, there are 3 operators available to choose from for flights from Puerto Rico to Washington, D.C. Dulles Intl Airport.
How old do you have to be to fly from Puerto Rico to Washington, D.C. Dulles Intl Airport?
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 Puerto Rico to Washington, D.C. Dulles Intl Airport.
What documentation or ID do you need to fly to Washington, D.C. Dulles Intl Airport?
The travel and health documents required for your trip to Washington, D.C. Dulles Intl Airport 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 Washington, D.C. Dulles Intl Airport. 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 Puerto Rico to Washington, D.C. Dulles Intl Airport?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from Puerto Rico to Washington, D.C. Dulles Intl Airport is Boeing 737 MAX 9 (20.15% of total bookings). The next most popular plane models are Airbus A321neo (18.13%), Boeing 737-900 (15.02%), and Airbus A320neo (14.19%).

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

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

Airline	Rating	Free Cancellation	Price
Frontier	PriceFrom $98	Free Cancellation	Rating 5.8 3,081 reviews	Search Frontier flights
United Airlines	PriceFrom $216	Free Cancellation	Rating 7.4 9,094 reviews	Search United Airlines flights
Delta	PriceFrom $269	Free Cancellation	Rating 7.9 8,007 reviews	Search Delta flights

Alexandria

National Harbor

Gettysburg

Arlington

Winchester

Woodbridge

Waldorf

Tysons

Laurel

Colonial Beach

Silver Spring

Fredericksburg

Towson

Harpers Ferry

Rockville

Gaithersburg

Reston

Manassas

Sterling

Fairfax

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Puerto Rico to Washington, D.C. for you.

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

Yes. momondo enables you to select and highlight flights to Washington, D.C. from Puerto Rico with this policy.

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

Once you have performed a search for Puerto Rico to Washington, D.C. flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

If you are not ready to book a flight from Puerto Rico to Washington, D.C. now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Washington, D.C. and let you know when they change.

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Cheap flights from Puerto Rico to Washington, D.C. from $91

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Puerto Rico to Washington, D.C. departing on 4/7. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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

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

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

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

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

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

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

What is the cheapest day to depart on your flight to Washington, D.C. Dulles Intl Airport?

What is the cheapest time of day to depart on your flight to Washington, D.C. Dulles Intl Airport?

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

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

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

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

There are 4 cabin classes available to choose from on Puerto Rico to Washington, D.C. Dulles Intl 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 Puerto Rico to Washington, D.C. Dulles Intl Airport flights?

You could potentially save up to 33% on your flight if you consider stops on a Puerto Rico to Washington, D.C. Dulles Intl Airport flight.

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

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

What airlines fly to Washington, D.C. Dulles Intl Airport?

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

The number of flights available between Puerto Rico and Washington, D.C. Dulles Intl Airport is 4 per day as of December 2025. The most frequent departure time is 8:00AM, with 50% of daily flights leaving at noon.

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

As of December 2025, 29 flights take off from Puerto Rico and land in Washington, D.C. Dulles Intl Airport each week. The most common flight departure day for this route is Sun, with 17% of weekly flights taking off on this day.

How long does it take to fly to Washington, D.C. Dulles Intl Airport?

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

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

Best Price Found

Fastest flight time

Direct flights

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

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

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

What documentation or ID do you need to fly to Washington, D.C. Dulles Intl Airport?

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

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

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

Traveling to a place near Washington, D.C.?

Why use momondo?

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

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

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

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

An easier way to manage your Washington, D.C. Dulles Intl Airport 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 Washington, D.C.

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