$143 Find Cheap Flights from Puerto Rico to Washington Dulles Airport - Compare and Save

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Cheap Flights from Puerto Rico to Dulles Intl

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Puerto Rico to Dulles Intl

Thu, Oct 15 - Mon, Oct 19
Multiple Airlines Logo
7:00 am - 8:11 pmSJU  San Juan Luis Munoz Marin Intl-IAD Washington, D.C. Dulles Intl
13h 11m1 stop Fort Lauderdale
Multiple Airlines Logo
6:36 pm - 9:18 amIAD  Washington, D.C. Dulles Intl-SJU San Juan Luis Munoz Marin Intl
14h 42m2 stops Blountville Tri Cities TN/VA Orlando
$287Multiple Airlines
Tue, Oct 27 - Sun, Nov 8
Frontier Logo
8:45 am - 8:11 pmSJU  San Juan Luis Munoz Marin Intl-IAD Washington, D.C. Dulles Intl
11h 26m1 stop Fort Lauderdale
Frontier Logo
7:40 am - 12:59 amIAD  Washington, D.C. Dulles Intl-SJU San Juan Luis Munoz Marin Intl
16h 19m1 stop Atlanta Hartsfield-Jackson
$288Frontier
Wed, Oct 14 - Mon, Oct 19
Frontier Logo
8:45 am - 8:11 pmSJU  San Juan Luis Munoz Marin Intl-IAD Washington, D.C. Dulles Intl
11h 26m1 stop Fort Lauderdale
Frontier Logo
6:08 pm - 3:18 pmIAD  Washington, D.C. Dulles Intl-SJU San Juan Luis Munoz Marin Intl
21h 10m1 stop Fort Lauderdale
$288Frontier
Tue, Oct 6 - Sat, Oct 10
Frontier Logo
8:45 am - 8:09 pmSJU  San Juan Luis Munoz Marin Intl-IAD Washington, D.C. Dulles Intl
11h 24m1 stop Fort Lauderdale
Frontier Logo
6:08 pm - 1:31 pmIAD  Washington, D.C. Dulles Intl-SJU San Juan Luis Munoz Marin Intl
19h 23m1 stop Fort Lauderdale
$288Frontier
Thu, Oct 8 - Mon, Oct 12
Multiple Airlines Logo
7:00 am - 8:11 pmSJU  San Juan Luis Munoz Marin Intl-IAD Washington, D.C. Dulles Intl
13h 11m1 stop Fort Lauderdale
Multiple Airlines Logo
6:36 pm - 2:36 pmIAD  Washington, D.C. Dulles Intl-SJU San Juan Luis Munoz Marin Intl
20h 00m2 stops Blountville Tri Cities TN/VA Orlando
$297Multiple Airlines
Sun, Sep 27 - Thu, Oct 1
Multiple Airlines Logo
2:57 am - 5:56 pmSJU  San Juan Luis Munoz Marin Intl-IAD Washington, D.C. Dulles Intl
14h 59m2 stops Orlando Blountville Tri Cities TN/VA
Multiple Airlines Logo
11:12 am - 11:13 pmIAD  Washington, D.C. Dulles Intl-SJU San Juan Luis Munoz Marin Intl
12h 01m1 stop Orlando
$308Multiple Airlines
Fri, Sep 25 - Wed, Sep 30
Multiple Airlines Logo
7:00 am - 5:56 pmSJU  San Juan Luis Munoz Marin Intl-IAD Washington, D.C. Dulles Intl
10h 56m2 stops Orlando Blountville Tri Cities TN/VA
Multiple Airlines Logo
3:11 pm - 11:58 pmIAD  Washington, D.C. Dulles Intl-SJU San Juan Luis Munoz Marin Intl
8h 47m1 stop Tampa
$310Multiple Airlines
Wed, Nov 18 - Mon, Nov 30
United Airlines Logo
8:05 am - 11:09 amSJU  San Juan Luis Munoz Marin Intl-IAD Washington, D.C. Dulles Intl
4h 04mnonstop
United Airlines Logo
5:29 pm - 10:22 pmIAD  Washington, D.C. Dulles Intl-SJU San Juan Luis Munoz Marin Intl
3h 53mnonstop
$324United Airlines
Thu, Nov 19 - Mon, Nov 23
United Airlines Logo
5:50 pm - 8:56 pmSJU  San Juan Luis Munoz Marin Intl-IAD Washington, D.C. Dulles Intl
4h 06mnonstop
United Airlines Logo
8:22 am - 1:15 pmIAD  Washington, D.C. Dulles Intl-SJU San Juan Luis Munoz Marin Intl
3h 53mnonstop
$325United Airlines
Thu, Oct 15 - Mon, Oct 19
United Airlines Logo
4:55 pm - 8:47 pmSJU  San Juan Luis Munoz Marin Intl-IAD Washington, D.C. Dulles Intl
3h 52mnonstop
United Airlines Logo
8:40 am - 12:34 pmIAD  Washington, D.C. Dulles Intl-SJU San Juan Luis Munoz Marin Intl
3h 54mnonstop
$337United Airlines
Booking Insights

KAYAK's insights & trends for flights to Dulles Intl

Get data-powered insights and trends for flights to Dulles Intl to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest day to fly to Washington, D.C.?

Based on KAYAK data, the cheapest day to fly to Washington, D.C. is Thursday where round-trip tickets can be as cheap as $392. On the other hand, the most expensive day to fly is Monday, where round-trip prices are $729 on average.

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

The cheapest month for flights to Washington, D.C. Dulles Intl Airport is January, where tickets cost $114 on average for return flights. On the other hand, the most expensive months are June and August, where the average cost of tickets from Puerto Rico is $539 and $506 respectively. For one-way flights, the best month to travel is February with an average price of $122.

What is the cheapest time of day to fly to Washington, D.C. Dulles Intl Airport?

The cheapest time of day to fly to Washington, D.C. Dulles Intl Airport is generally in the evening, when round-trip flights cost $442 on average. The most expensive time of day to fly to Washington, D.C. Dulles Intl Airport is generally in the afternoon, which is peak travel time and where the average cost of a ticket is $716.

What is a good deal for flights to Washington, D.C. Dulles Intl Airport?

If you’re looking for cheap airfare to Washington, D.C. Dulles Intl Airport, 25% of our users found tickets to Washington, D.C. Dulles Intl Airport for the following prices or less: From San Juan Luis Munoz Marin Intl Airport $327 round-trip.

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

To get a below average price, you should book around 3 weeks before departure, which saves you about 57% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 5 weeks before departure.

Good to know

Low season

September

Cheapest flight

$143
Best time to beat the crowds with an average 7% drop in price.
Most popular time to fly and prices are also 3% lower on average.
Flight from San Juan to Washington Dulles Airport

FAQs - booking Washington Dulles Airport flights

  • How far is Washington, D.C. Dulles Intl Airport from central Washington, D.C.?

    Central Washington, D.C. is 22 miles away from Washington, D.C. Dulles Intl Airport.

  • How much is a flight to Washington, D.C.?

    On average, a flight to Washington, D.C. costs $419. The cheapest price found on KAYAK in the last 2 weeks cost $142 and departed from San Juan Luis Munoz Marin Intl Airport.

  • How does KAYAK find such low prices on flights to Washington Dulles Airport?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights to Washington Dulles Airport.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket to Washington Dulles Airport?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Washington Dulles Airport is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights to Washington Dulles Airport?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Washington Dulles Airport with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight to Washington Dulles Airport?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Washington Dulles Airport up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • How many direct flights to Washington, D.C. Dulles Intl Airport are there each week?

    Each week there are around 7,887 direct flights from within Puerto Rico to Washington, D.C. Dulles Intl Airport. The most common day for departures is Thursday, with 17% of flights taking off on this day.

Top tips for finding cheap flights to Washington Dulles Airport

  • Looking for cheap airfare to Washington Dulles Airport? 25% of our users found round-trip tickets to Washington Dulles Airport for the following prices or less: From San Juan Luis Munoz Marin Intl $258
  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest Washington Dulles Airport flight deals.

Reviews of the top airlines flying from Puerto Rico to Dulles Intl

 
Need help choosing which airline to fly with to Dulles Intl? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 10194 reviews
6.7Food
8.1Crew
7.7Boarding
7.1Entertainment
7.3Comfort
Airline reviews

Did not like the check in guy quibbling over a couple pounds at the luggage weigh in

8.0 ExcellentMichael, Sep 2026
Read more United Airlines reviews

Did not like the check in guy quibbling over a couple pounds at the luggage weigh in

Just having a little bit more legroom would've been nice.

This is related to my second leg of the flight, from Washington DC to SFO. I understand things happen, but I got home at 3 am for a 12:59 am landing. I live 10 min from the airport. Bridge breaks when a few rows of the plane are off? Maintenance didn’t catch that?

Great Brasilia aircraft - not a Boeing 757 like the next part of the flight. Flight from MCI to IAD was great, on-time, comfortable, did I mention that? The flight from IAD to EDI was painful. One of the reasons I won't fly United again? Boeing 757, with a seat pitch and material that was horrendous. Worst aircraft ever, made worse by United sardine-can tight seating. Oh, and the connection window, 45 minutes, really? At IAD, in different concourses? What idiot came up with that flight scenario? Happily, (for me and my travel insurance people) the flight was late (reminiscent of American Airlines). The crew was professional and courteous.

great starting with the business Class that's was Amazing . thank you United Airlines and brussels Airlines

Best flight in years. Pre-boarding because of my mobility issues. Good food and beverage from beginning to end. Excellent choice of films. Good service by stewardesses. Comfortable seats. I could lie down!

No drink service but there was no N/A as an option to choose. Seats were extremely tight. I am under 5.5 and I bumped my knees have no idea how taller people could manage.

Bad check in experience. Dirty ancient aircraft. Truly awful food and this in Business/ First class.

I truely appreciate all services. I was highly impressed and will not hesitate to recommend United Airlines to friends and family. The AVML was perfect.

IT WAS A LONG TIME SINCE THE LAST TIME I TRAVELED. I THOUGHT I WAS TO BE LOST BUT EVERYONE WAS PRETTY NICE WITH ME AND MADE MY EXPERIENCE NICE. THANKS

Crew was kind of grumpy and there was no beverage service at all. Sodas were $4. Disappointing.

There's no seats that lean back with little leg space i wad uncomfortable the entire flight. Your charges for extra baggage is despicable and costly!!

Frontier line changes my flight schedule with out my authorization. They never ask me and with out my concern they cut off 4 hours of my vacation they force my to leave 4 hours early from Puerto Rico.

There was no food and no entertainment, so I'm not sure why these are even in the survey, as my understanding is frontier does not ever offer food without a few, not even a snack, and there are no screens so unless the flight safety talk is our entertainment why ask how we liked it?. One of the flight attendants say in the back of the plane as people filed in to their seats, yelling orders about where to put baggage and telling people to hurry up. It was the least professional experience I've ever had on a flight.

Good- no snacks on a 4+ hour flight is painful but more painful was the lack of WiFi.

The worst. We never made our connection and they did absolutely nothing to help us at the airport.

I guess you get what you pay for. The seats are very uncomfortable and very little space. The snacks were pricey.

Flight was changed (according to Frontier, by Kayak) without my notification. And all flights were delayed by at least an hour and a half. Uncomfortable plane. Bad service. Will never fly Frontier again.

Was left with many other passengers in SJU by frontier airlines due to delay caused by frontier. Worst experience ever and worst airline ever.

It was horrible. My plane was delayed until the next day resulting in me losing a day of work. It’s absolutely unacceptable and I won’t be flying with you any more and I will strongly caution others to avoid your airline as well.

Traveling to a place near Dulles Intl?

Book flights to Dulles Intl if you plan to visit one of these locations
Winchester
Linthicum Heights
Hanover
Springfield
Gaithersburg
Towson
Martinsburg
Oxon Hill
Owings Mills
Charles Town
Greenbelt
Glen Burnie
Edgewood
Chesapeake Beach
Camp Springs
Ellicott City
Pikesville
Hunt Valley
Colonial Beach
Lutherville Timonium

More options for your flight to Dulles Intl