$137 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 8 - Tue, Oct 13
Frontier Logo
10:52 am - 10:17 amBQN  Aguadilla Borinquen-IAD Washington, D.C. Dulles Intl
23h 25m1 stop Orlando
Frontier Logo
11:12 am - 10:22 amIAD  Washington, D.C. Dulles Intl-BQN Aguadilla Borinquen
23h 10m1 stop Orlando
$248Frontier
Sat, Nov 21 - Sat, Nov 28
Frontier Logo
5:19 am - 12:14 pmSJU  San Juan Luis Munoz Marin Intl-IAD Washington, D.C. Dulles Intl
7h 55m1 stop Atlanta Hartsfield-Jackson
Frontier Logo
1:05 pm - 5:52 pmIAD  Washington, D.C. Dulles Intl-SJU San Juan Luis Munoz Marin Intl
3h 47mnonstop
$286Frontier
Tue, Dec 22 - Thu, Dec 31
Frontier Logo
3:00 pm - 10:12 amSJU  San Juan Luis Munoz Marin Intl-IAD Washington, D.C. Dulles Intl
20h 12m1 stop Miami
Frontier Logo
9:14 pm - 1:51 pmIAD  Washington, D.C. Dulles Intl-SJU San Juan Luis Munoz Marin Intl
15h 37m1 stop Miami
$286Frontier
Sun, Oct 25 - Fri, Oct 30
Frontier Logo
10:09 am - 10:17 amSJU  San Juan Luis Munoz Marin Intl-IAD Washington, D.C. Dulles Intl
24h 08m1 stop Orlando
Frontier Logo
1:36 pm - 11:56 pmIAD  Washington, D.C. Dulles Intl-SJU San Juan Luis Munoz Marin Intl
10h 20m1 stop Tampa
$286Frontier
Fri, Oct 16 - Mon, Oct 19
American Airlines Logo
12:41 pm - 9:16 pmSJU  San Juan Luis Munoz Marin Intl-IAD Washington, D.C. Dulles Intl
8h 35m1 stop Charlotte Douglas
American Airlines Logo
5:01 am - 11:20 amIAD  Washington, D.C. Dulles Intl-SJU San Juan Luis Munoz Marin Intl
6h 19m1 stop Charlotte Douglas
$306American Airlines
Fri, Oct 9 - Sun, Oct 11
American Airlines Logo
3:51 pm - 8:44 amSJU  San Juan Luis Munoz Marin Intl-IAD Washington, D.C. Dulles Intl
16h 53m1 stop Charlotte Douglas
American Airlines Logo
5:01 am - 11:20 amIAD  Washington, D.C. Dulles Intl-SJU San Juan Luis Munoz Marin Intl
6h 19m1 stop Charlotte Douglas
$306American Airlines
Fri, Oct 23 - Sun, Oct 25
American Airlines Logo
12:41 pm - 9:16 pmSJU  San Juan Luis Munoz Marin Intl-IAD Washington, D.C. Dulles Intl
8h 35m1 stop Charlotte Douglas
American Airlines Logo
6:15 am - 3:01 pmIAD  Washington, D.C. Dulles Intl-SJU San Juan Luis Munoz Marin Intl
8h 46m1 stop Charlotte Douglas
$306American Airlines
Tue, Nov 24 - Mon, Dec 7
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
8:22 am - 1:15 pmIAD  Washington, D.C. Dulles Intl-SJU San Juan Luis Munoz Marin Intl
3h 53mnonstop
$317United Airlines
Tue, Nov 3 - Sat, Nov 7
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
$337United Airlines
Thu, Oct 29 - Tue, Nov 3
United Airlines Logo
4:50 pm - 8:56 pmSJU  San Juan Luis Munoz Marin Intl-IAD Washington, D.C. Dulles Intl
4h 06mnonstop
United Airlines Logo
5:29 pm - 10:22 pmIAD  Washington, D.C. Dulles Intl-SJU San Juan Luis Munoz Marin Intl
3h 53mnonstop
$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 $397. On the other hand, the most expensive day to fly is Sunday, where round-trip prices are $715 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 $453 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 $337 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 58% 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

$137
Best time to beat the crowds but there is an average 14% increase in price.
Most popular time to fly and prices are also 6% 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 $358. The cheapest price found on KAYAK in the last 2 weeks cost $106 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 5,932 direct flights from within Puerto Rico to Washington, D.C. Dulles Intl Airport. The most common day for departures is Sunday, with 16% 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 $615
  • 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 10222 reviews
8.1Crew
7.7Boarding
7.3Comfort
7.1Entertainment
6.7Food
Airline reviews

Fought with Lufthansa was poor, seats are uncomfortable, food was bad and luggage did not arrive to IA

2.0 MediocreAnonymous, Sep 2026
Read more United Airlines reviews

Fought with Lufthansa was poor, seats are uncomfortable, food was bad and luggage did not arrive to IA

Awful!!!. I do not recommend United. The flight staff are unhappy and don't attempt to make the passengers feel comfortable or welcome. The food is not edible, and the seats are miserable. My expensive luggage was destroyed, and the ticket prices are too much for the experience.

On time, easy boarding. Anytime you sit in an economy seat, it’s uncomfortable. New plane and the bathrooms were in the galley at the back of the plane which seemed odd.

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!

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
Capitol Heights

More options for your flight to Dulles Intl