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Cheap flights from Puerto Rico to Washington, D.C. from $106

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 5/15. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

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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.

Enter your travel dates to find the best prices.
Frontier Logo
6:00 am - 9:18 pm
SJU
-
IAD
15h 18m
1 stop
Frontier Logo
4:25 pm - 12:10 am
IAD
-
SJU
7h 45m
1 stop
$186Frontier
Thu, Apr 9 - Mon, Apr 13
Frontier Logo
3:16 am - 10:11 am
SJU
-
IAD
6h 55m
1 stop
Frontier Logo
6:39 pm - 11:18 am
IAD
-
SJU
16h 39m
1 stop
$189Frontier
Tue, Apr 7 - Sun, Apr 12
Frontier Logo
3:16 am - 10:11 am
SJU
-
IAD
6h 55m
1 stop
Frontier Logo
4:25 pm - 12:10 am
IAD
-
SJU
7h 45m
1 stop
$192Frontier
Tue, Apr 7 - Mon, Apr 13
Frontier Logo
3:23 pm - 12:36 am
SJU
-
IAD
9h 13m
1 stop
Frontier Logo
6:20 am - 2:08 pm
IAD
-
SJU
7h 48m
1 stop
$194Frontier
Fri, May 1 - Sun, May 3
Frontier Logo
3:23 pm - 12:36 am
SJU
-
IAD
9h 13m
1 stop
Frontier Logo
6:00 am - 2:13 pm
IAD
-
SJU
8h 13m
1 stop
$195Frontier
Fri, May 1 - Mon, May 4
Frontier Logo
6:00 am - 9:18 pm
SJU
-
IAD
15h 18m
1 stop
Frontier Logo
6:39 pm - 11:18 am
IAD
-
SJU
16h 39m
1 stop
$196Frontier
Thu, Apr 9 - Sun, Apr 12
Frontier Logo
2:48 am - 9:07 am
BQN
-
IAD
6h 19m
1 stop
Frontier Logo
6:37 pm - 2:02 am
IAD
-
BQN
7h 25m
1 stop
$196Frontier
Sat, May 2 - Tue, May 5
Frontier Logo
3:03 pm - 12:36 am
SJU
-
IAD
9h 33m
1 stop
Frontier Logo
8:17 am - 9:54 am
IAD
-
SJU
25h 37m
1 stop
$201Frontier
Thu, Apr 23 - Mon, Apr 27
United Airlines Logo
12:15 am - 7:28 am
BQN
-
IAD
7h 13m
1 stop
United Airlines Logo
10:08 am - 11:09 pm
IAD
-
BQN
13h 01m
2 stops
$339United Airlines
Sat, May 2 - Tue, May 5
United Airlines Logo
12:15 am - 7:22 am
BQN
-
IAD
7h 07m
1 stop
United Airlines Logo
12:45 pm - 11:09 pm
IAD
-
BQN
10h 24m
2 stops
$378United Airlines
Mon, Aug 10 - Mon, Aug 17

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

Our best United Airlines deals on Puerto Rico to Washington, D.C. Dulles Intl Airport flight tickets
United Airlines
May 2
BQN12:15 amAguadilla Borinquen
7h 13m
1 stop
IAD7:28 amWashington, D.C. Dulles Intl
May 5
IAD10:08 amWashington, D.C. Dulles Intl
13h 01m
2 stops
BQN11:09 pmAguadilla Borinquen
$339
United Airlines
Mar 30
SJU7:20 amSan Juan Luis Munoz Marin Intl
4h 01m
IAD11:21 amWashington, D.C. Dulles Intl
Apr 6
IAD5:24 pmWashington, D.C. Dulles Intl
4h 00m
SJU9:24 pmSan Juan Luis Munoz Marin Intl
$363
United Airlines
Aug 10
BQN12:15 amAguadilla Borinquen
7h 07m
1 stop
IAD7:22 amWashington, D.C. Dulles Intl
Aug 17
IAD12:45 pmWashington, D.C. Dulles Intl
10h 24m
2 stops
BQN11:09 pmAguadilla Borinquen
$378

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
Apr 9
SJU6:00 amSan Juan Luis Munoz Marin Intl
15h 18m
1 stop
IAD9:18 pmWashington, D.C. Dulles Intl
Apr 13
IAD4:25 pmWashington, D.C. Dulles Intl
7h 45m
1 stop
SJU12:10 amSan Juan Luis Munoz Marin Intl
$186
Frontier
Apr 7
SJU3:16 amSan Juan Luis Munoz Marin Intl
6h 55m
1 stop
IAD10:11 amWashington, D.C. Dulles Intl
Apr 12
IAD6:39 pmWashington, D.C. Dulles Intl
16h 39m
1 stop
SJU11:18 amSan Juan Luis Munoz Marin Intl
$189
Frontier
Apr 7
SJU3:16 amSan Juan Luis Munoz Marin Intl
6h 55m
1 stop
IAD10:11 amWashington, D.C. Dulles Intl
Apr 13
IAD4:25 pmWashington, D.C. Dulles Intl
7h 45m
1 stop
SJU12:10 amSan Juan Luis Munoz Marin Intl
$192

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 March 25, 2026.
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

Cheapest round-trip

San JuanWashington, D.C.

SJU - IAD

SJUIAD

San Juan Luis Munoz Marin Intl

Thu 4/9

6:00 am-9:18 pm

1 stop15h 18m

Washington, D.C. Dulles Intl

Mon 4/13

4:25 pm-12:10 am

1 stop7h 45m

$186

San JuanWashington, D.C.

SJU - IAD

SJUIAD

San Juan Luis Munoz Marin Intl

Tue 4/7

3:16 am-10:11 am

1 stop6h 55m

Washington, D.C. Dulles Intl

Sun 4/12

6:39 pm-11:18 am

1 stop16h 39m

$189

San JuanWashington, D.C.

SJU - IAD

SJUIAD

San Juan Luis Munoz Marin Intl

Tue 4/7

3:16 am-10:11 am

1 stop6h 55m

Washington, D.C. Dulles Intl

Mon 4/13

4:25 pm-12:10 am

1 stop7h 45m

$192

San JuanWashington, D.C.

SJU - IAD

SJUIAD

San Juan Luis Munoz Marin Intl

Fri 5/1

3:23 pm-12:36 am

1 stop9h 13m

Washington, D.C. Dulles Intl

Sun 5/3

6:20 am-2:08 pm

1 stop7h 48m

$194

San JuanWashington, D.C.

SJU - IAD

SJUIAD

San Juan Luis Munoz Marin Intl

Fri 5/1

3:23 pm-12:36 am

1 stop9h 13m

Washington, D.C. Dulles Intl

Mon 5/4

6:00 am-2:13 pm

1 stop8h 13m

$195

San JuanWashington, D.C.

SJU - IAD

SJUIAD

San Juan Luis Munoz Marin Intl

Thu 4/9

6:00 am-9:18 pm

1 stop15h 18m

Washington, D.C. Dulles Intl

Sun 4/12

6:39 pm-11:18 am

1 stop16h 39m

$196
Quickest round-trip

AguadillaWashington, D.C.

BQN - IAD

BQNIAD

Aguadilla Borinquen

Sat 5/2

2:48 am-9:07 am

1 stop6h 19m

Washington, D.C. Dulles Intl

Tue 5/5

6:37 pm-2:02 am

1 stop7h 25m

$196

San JuanWashington, D.C.

SJU - IAD

SJUIAD

San Juan Luis Munoz Marin Intl

Thu 4/23

3:03 pm-12:36 am

1 stop9h 33m

Washington, D.C. Dulles Intl

Mon 4/27

8:17 am-9:54 am

1 stop25h 37m

$201

AguadillaWashington, D.C.

BQN - IAD

BQNIAD

Aguadilla Borinquen

Sat 5/2

12:15 am-7:28 am

1 stop7h 13m

Washington, D.C. Dulles Intl

Tue 5/5

10:08 am-11:09 pm

2 stops13h 01m

$339

AguadillaWashington, D.C.

BQN - IAD

BQNIAD

Aguadilla Borinquen

Mon 8/10

12:15 am-7:22 am

1 stop7h 07m

Washington, D.C. Dulles Intl

Mon 8/17

12:45 pm-11:09 pm

2 stops10h 24m

$378

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest 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, January 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 $114. If you aren’t able to travel to Washington, D.C. Dulles Intl Airport during the month of January, then flying in February is also cheap. Prices for this month can be found on momondo for an average of $149.

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 $313. 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 $666.

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 in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $467 when looking at flights departing in the afternoon. If you have a flexible travel schedule, then try to avoid flying at noon when prices are $716 on average. Flights to Washington, D.C. Dulles Intl Airport from Puerto Rico at noon 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 $313 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 $190 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 44% 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

$207

Fastest flight time

3h 52m

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 $207. 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 $326.
The fastest flight from Puerto Rico to Washington, D.C. Dulles Intl Airport takes 3h 52m
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 $76Free CancellationRating
5.7
3,017 reviews
Search Frontier flights
United AirlinesPriceFrom $216Free CancellationRating
7.4
9,474 reviews
Search United Airlines 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
National Harbor
Gettysburg
Arlington
Winchester
Waldorf
Woodbridge
Laurel
Colonial Beach
Gaithersburg
Towson
Silver Spring
Fredericksburg
Rockville
Tysons
Manassas
Sterling
Linthicum Heights
Springfield
Bethesda

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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