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Cheap flights from Puerto Rico to Washington, D.C. from $116

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 10/30. 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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Find the cheapest flights from Puerto Rico to Washington, D.C.

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

Frontier Logo
4:08 pm - 7:11 pmSJU-IAD
4h 03mnonstop
Frontier Logo
10:08 am - 3:02 pmIAD-SJU
3h 54mnonstop
$177Frontier
Find Deal
Fri, Nov 21 - Sun, Dec 7
Frontier Logo
6:54 pm - 2:18 pmSJU-IAD
20h 24m1 stop
Frontier Logo
7:26 pm - 12:18 amIAD-SJU
3h 52mnonstop
$184Frontier
Find Deal
Thu, Nov 13 - Sun, Nov 16
Frontier Logo
6:54 pm - 2:18 pmSJU-IAD
20h 24m1 stop
Frontier Logo
7:26 pm - 12:18 amIAD-SJU
3h 52mnonstop
$185Frontier
Find Deal
Thu, Nov 13 - Sun, Nov 16
Multiple Airlines Logo
3:45 pm - 7:41 pmSJU-IAD
3h 56mnonstop
Multiple Airlines Logo
8:13 pm - 3:33 amIAD-SJU
30h 20m2 stops
$215Multiple Airlines
Find Deal
Thu, Oct 30 - Sun, Nov 2
Multiple Airlines Logo
9:49 pm - 7:51 pmSJU-IAD
23h 02m2 stops
Multiple Airlines Logo
7:26 pm - 12:18 amIAD-SJU
3h 52mnonstop
$225Multiple Airlines
Find Deal
Thu, Nov 13 - Sun, Nov 16
Delta Logo
6:36 pm - 12:16 amSJU-IAD
6h 40m1 stop
Delta Logo
7:01 am - 5:23 pmIAD-SJU
9h 22m1 stop
$245Delta
Find Deal
Fri, Dec 5 - Tue, Dec 9
United Airlines Logo
4:55 pm - 8:52 pmSJU-IAD
3h 57mnonstop
United Airlines Logo
5:32 pm - 9:22 pmIAD-SJU
3h 50mnonstop
$266United Airlines
Find Deal
Thu, Oct 23 - Wed, Oct 29
United Airlines Logo
4:55 pm - 8:52 pmSJU-IAD
3h 57mnonstop
United Airlines Logo
6:30 am - 2:40 pmIAD-SJU
8h 10m1 stop
$271United Airlines
Find Deal
Thu, Oct 23 - Wed, Oct 29
American Airlines Logo
4:45 pm - 9:55 amSJU-IAD
17h 10m1 stop
American Airlines Logo
7:55 am - 8:48 pmIAD-SJU
11h 53m1 stop
$272American Airlines
Find Deal
Thu, Oct 30 - Tue, Nov 4
American Airlines Logo
8:20 am - 11:07 pmSJU-IAD
15h 47m1 stop
American Airlines Logo
7:59 am - 8:48 pmIAD-SJU
11h 49m1 stop
$282American Airlines
Find Deal
Wed, Nov 5 - Mon, Nov 10

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

Our best American Airlines deals on Puerto Rico to Washington, D.C. Dulles Intl Airport flight tickets
American Airlines
Oct 30
SJU4:45 pmSan Juan Luis Munoz Marin Intl
17h 10m
1 stop
IAD9:55 amWashington, D.C. Dulles Intl
Nov 4
IAD7:55 amWashington, D.C. Dulles Intl
11h 53m
1 stop
SJU8:48 pmSan Juan Luis Munoz Marin Intl
$272
Find similar
American Airlines
Nov 5
SJU8:20 amSan Juan Luis Munoz Marin Intl
15h 47m
1 stop
IAD11:07 pmWashington, D.C. Dulles Intl
Nov 10
IAD7:59 amWashington, D.C. Dulles Intl
11h 49m
1 stop
SJU8:48 pmSan Juan Luis Munoz Marin Intl
$282
Find similar
American Airlines
Nov 6
SJU8:00 amSan Juan Luis Munoz Marin Intl
6h 16m
1 stop
IAD1:16 pmWashington, D.C. Dulles Intl
Nov 9
IAD1:58 pmWashington, D.C. Dulles Intl
6h 00m
1 stop
SJU8:58 pmSan Juan Luis Munoz Marin Intl
$288
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
Nov 21
SJU4:08 pmSan Juan Luis Munoz Marin Intl
4h 03m
IAD7:11 pmWashington, D.C. Dulles Intl
Dec 7
IAD10:08 amWashington, D.C. Dulles Intl
3h 54m
SJU3:02 pmSan Juan Luis Munoz Marin Intl
$177
Find similar
Frontier
Nov 13
SJU6:54 pmSan Juan Luis Munoz Marin Intl
20h 24m
1 stop
IAD2:18 pmWashington, D.C. Dulles Intl
Nov 16
IAD7:26 pmWashington, D.C. Dulles Intl
3h 52m
SJU12:18 amSan Juan Luis Munoz Marin Intl
$184
Find similar
Frontier
Nov 13
SJU6:54 pmSan Juan Luis Munoz Marin Intl
20h 24m
1 stop
IAD2:18 pmWashington, D.C. Dulles Intl
Nov 16
IAD7:26 pmWashington, D.C. Dulles Intl
3h 52m
SJU12:18 amSan Juan Luis Munoz Marin Intl
$185
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Puerto Rico to Washington, D.C. Dulles Intl Airport that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated September 24, 2025.
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

Fri 11/21

4:08 pm-7:11 pm

Nonstop4h 03m

Washington, D.C. Dulles Intl

Sun 12/7

10:08 am-3:02 pm

Nonstop3h 54m

$177

San JuanWashington, D.C.

SJU - IAD

SJUIAD

San Juan Luis Munoz Marin Intl

Thu 11/13

6:54 pm-2:18 pm

1 stop20h 24m

Washington, D.C. Dulles Intl

Sun 11/16

7:26 pm-12:18 am

Nonstop3h 52m

$184

San JuanWashington, D.C.

SJU - IAD

SJUIAD

San Juan Luis Munoz Marin Intl

Thu 11/13

6:54 pm-2:18 pm

1 stop20h 24m

Washington, D.C. Dulles Intl

Sun 11/16

7:26 pm-12:18 am

Nonstop3h 52m

$185

San JuanWashington, D.C.

SJU - IAD

SJUIAD

San Juan Luis Munoz Marin Intl

Thu 10/30

3:45 pm-7:41 pm

Nonstop3h 56m

Washington, D.C. Dulles Intl

Sun 11/2

8:13 pm-3:33 am

2 stops30h 20m

$215

San JuanWashington, D.C.

SJU - IAD

SJUIAD

San Juan Luis Munoz Marin Intl

Thu 11/13

9:49 pm-7:51 pm

2 stops23h 02m

Washington, D.C. Dulles Intl

Sun 11/16

7:26 pm-12:18 am

Nonstop3h 52m

$225

San JuanWashington, D.C.

SJU - IAD

SJUIAD

San Juan Luis Munoz Marin Intl

Fri 12/5

6:36 pm-12:16 am

1 stop6h 40m

Washington, D.C. Dulles Intl

Tue 12/9

7:01 am-5:23 pm

1 stop9h 22m

$245

San JuanWashington, D.C.

SJU - IAD

SJUIAD

San Juan Luis Munoz Marin Intl

Thu 10/23

4:55 pm-8:52 pm

Nonstop3h 57m

Washington, D.C. Dulles Intl

Wed 10/29

5:32 pm-9:22 pm

Nonstop3h 50m

$266

San JuanWashington, D.C.

SJU - IAD

SJUIAD

San Juan Luis Munoz Marin Intl

Thu 10/23

4:55 pm-8:52 pm

Nonstop3h 57m

Washington, D.C. Dulles Intl

Wed 10/29

6:30 am-2:40 pm

1 stop8h 10m

$271

San JuanWashington, D.C.

SJU - IAD

SJUIAD

San Juan Luis Munoz Marin Intl

Thu 10/30

4:45 pm-9:55 am

1 stop17h 10m

Washington, D.C. Dulles Intl

Tue 11/4

7:55 am-8:48 pm

1 stop11h 53m

$272

San JuanWashington, D.C.

SJU - IAD

SJUIAD

San Juan Luis Munoz Marin Intl

Wed 11/5

8:20 am-11:07 pm

1 stop15h 47m

Washington, D.C. Dulles Intl

Mon 11/10

7:59 am-8:48 pm

1 stop11h 49m

$282

Flights are sorted by cheapest round-trip flights first.

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See travel insights to Washington, D.C. from

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

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 August is also cheap. Prices for this month can be found on momondo for an average of $290.

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 $344. 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 $737.

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 $538 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 $374 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 $285 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 15% 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

$153

Fastest flight time

3h 56m

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 $153. 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 $245.
The fastest flight from Puerto Rico to Washington, D.C. Dulles Intl Airport takes 3h 56m
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?

  • 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?

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
FrontierPriceFrom $85Free CancellationRating
5.8
3,163 reviews
Search Frontier flights
United AirlinesPriceFrom $236Free CancellationRating
7.4
8,928 reviews
Search United Airlines flights
DeltaPriceFrom $269Free CancellationRating
7.9
7,973 reviews
Search Delta flights

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

Book flights to Washington, D.C. if you plan to visit one of these locations
Alexandria
Gettysburg
National Harbor
Arlington
Winchester
Woodbridge
Waldorf
Tysons
Laurel
Colonial Beach
Silver Spring
Fredericksburg
Harpers Ferry
Towson
Rockville
Manassas
Fairfax
Reston
Glen Burnie
Gaithersburg

Why use momondo?

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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