$106 Find Cheap Flights from Puerto Rico to Washington Dulles Airport

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to Dulles Intl departing on 6/4. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Washington, D.C. Dulles Intl Airport

 
These are the airlines KAYAK users have selected most often from within our search results for flights to Washington, D.C., as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results for flights to Washington, D.C., as well as popular online travel agencies
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Flight Deals

Cheap Flights from Puerto Rico to Dulles Intl

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Puerto Rico to Dulles Intl that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

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

Wed, May 13 - Mon, May 18
Frontier Logo
6:00 am - 4:22 pm
SJU
-
IAD
10h 22m
1 stop
Frontier Logo
7:27 pm - 2:08 am
IAD
-
SJU
6h 41m
1 stop
$204Frontier
Thu, May 14 - Sun, May 17
Frontier Logo
10:02 am - 6:27 pm
PSE
-
IAD
8h 25m
1 stop
Frontier Logo
7:27 pm - 9:02 am
IAD
-
PSE
13h 35m
1 stop
$204Frontier
Fri, May 1 - Mon, May 11
Frontier Logo
3:23 pm - 12:36 am
SJU
-
IAD
9h 13m
1 stop
Frontier Logo
7:27 pm - 2:08 am
IAD
-
SJU
6h 41m
1 stop
$206Frontier
Tue, Jun 2 - Sun, Jun 7
Frontier Logo
6:00 am - 6:42 pm
SJU
-
IAD
12h 42m
1 stop
Frontier Logo
7:27 pm - 8:04 am
IAD
-
SJU
12h 37m
1 stop
$212Frontier
Fri, May 8 - Sun, May 10
Frontier Logo
9:47 am - 6:42 pm
PSE
-
IAD
8h 55m
1 stop
Frontier Logo
7:27 pm - 9:02 am
IAD
-
PSE
13h 35m
1 stop
$212Frontier
Sun, Jul 12 - Mon, Jul 27
Multiple Airlines Logo
2:59 am - 12:53 pm
BQN
-
IAD
9h 54m
1 stop
Multiple Airlines Logo
2:52 pm - 2:04 am
IAD
-
BQN
11h 12m
2 stops
$430Multiple Airlines
Thu, Jul 9 - Wed, Jul 22
United Airlines Logo
12:15 am - 7:22 am
BQN
-
IAD
7h 07m
1 stop
United Airlines Logo
8:15 am - 11:09 pm
IAD
-
BQN
14h 54m
2 stops
$442United Airlines
Thu, Jul 9 - Fri, Jul 24
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
$449United Airlines
Fri, May 8 - Tue, May 12
United Airlines Logo
10:30 am - 11:59 pm
CPX
-
IAD
13h 29m
2 stops
United Airlines Logo
8:34 am - 4:13 pm
IAD
-
CPX
7h 39m
1 stop
$1,301United Airlines
Fri, May 8 - Tue, May 12
United Airlines Logo
10:30 am - 11:59 pm
CPX
-
IAD
13h 29m
2 stops
United Airlines Logo
6:00 am - 4:13 pm
IAD
-
CPX
10h 13m
2 stops
$1,446United 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 flight to Washington Dulles Airport?

These are the best round-trip prices found by users searching on KAYAK in the last 72 hours.

In the last 3 days, the cheapest flight deal to Washington Dulles Airport was found on the route from Ponce, at $204 return. The most popular connection is from Los Angeles to Washington Dulles Airport and KAYAK users have found round-trip deals for as low as $268 in the last 3 days.

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

The average price of all round-trip flights to Washington, D.C. Dulles Intl Airport clicked on KAYAK for each day over the last 12 months.

Based on KAYAK data, the cheapest day to fly to Washington, D.C. is Thursday where round-trip tickets can be as cheap as $306. On the other hand, the most expensive day to fly is Monday, where round-trip prices are $657 on average.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights to Washington, D.C. Dulles Intl Airport, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

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 March and September, where the average cost of tickets from Puerto Rico is $491 and $441 respectively. For one-way flights, the best month to travel is January with an average price of $114.

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

The average price for all round-trip flights to Washington, D.C. Dulles Intl Airport depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.

The cheapest time of day to fly to Washington, D.C. Dulles Intl Airport is generally in the evening, when round-trip flights cost $468 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 $381 round-trip.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights to Washington, D.C. Dulles Intl Airport, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price, you should book around 2 weeks before departure, which saves you about 35% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 5 weeks before departure.

Good to know

Low seasonSeptember
Cheapest flight$106
Best time to beat the crowds but there is an average 40% increase in price.
Most popular time to fly with an average 16% increase in price.
Flight from Ponce to Washington Dulles Airport

FAQs - booking Washington Dulles Airport flights

  • What is the cheapest flight to Washington Dulles Airport?

    In the last 3 days, the cheapest flight deal to Washington Dulles Airport was found on the route from Ponce, at $204 return. The most popular connection is from Los Angeles to Washington Dulles Airport and KAYAK users have found round-trip deals for as low as $268 in the last 3 days.

  • 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 $427. The cheapest price found on KAYAK in the last 2 weeks cost $151 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.

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 $869
  • 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

 
See real verified KAYAK customer reviews for airlines flying to Washington, D.C.. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline from Puerto Rico to Washington, D.C.. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
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 9613 reviews
8.1Crew
7.1Entertainment
7.3Comfort
6.6Food
7.7Boarding
Airline reviews

Terrific in every way. On time, professional staff, multiple movie options to select, great food and drink.

10.0 ExcellentDenise and Scott, Apr 2026
MUC - IAD
Read more United Airlines reviews

Terrific in every way. On time, professional staff, multiple movie options to select, great food and drink.

My bags were misplaced!!! Im in a foreign country with no bags

I liked that it was on time, however, the food was not good.

Offered to check carry on to final destination. This is the most absurd thing in the world. I'm carrying on because I need what is in the carry-on. I'm okay with picking up at next stop but then I will be on much larger plane that can accommodate it. Also, if there is ever a change to your flight. Go to the airport and have the people there fix your ticket. Don't do it over the phone or online with United they screwed us up and ended up with flights for our last leg that took off before our first leg.

United is one airline which regardless of how many separate United tickets in existence, if one flight breaks down, the airline will take care of all the flights.

It was okay, the food was good, but after the landing there was not enough time for luggage and security to catch a connection. It was crowded on board.

When I went to check in at the United counter in Barcelona, Spain I had 2 different menat 2 different times in United uniforms (standing around with a couple other employees) ask me if I was traveling alone. The one man asked me 3 different ways if I was traveling alone. I am, 68 yeaers old and have all my faculties. I thought it was weird and it made me feel very uncomfortable. What difference does it make if I was traveling alone or with someone? What if I was a recent widow? That would have been horrible. They never gave me a reason why they needed to know who I was traveling with. I was hesitant to question them because I needed to be on that flight.

Crew was great. 2 1/2 hour delay was due to staff needing "rest" was avoidable and self inflicted as United not willing to hire enough crew to keep flight on time.. Ridiculous. The crew and the passengers both suffered due to this.

Fine not above and beyond as I had a connection that was delayed due to maintenance

Bad food, bad service, cold cabin with no additional blankets when asked for (they told me they don’t provide additional blankets). I’m a frequent traveler and this is one of the worst companies I traveled with (by the way I thought that I booked my ticket with Lufthansa but I didn’t see that the flights were handled by United).

They didn’t offer a water, even after I asked

Zero issues with this flight. Crew was outstanding and flight was super. Plane was clean and fine. The seats need more padding and water should be provided without cost. I recognize it's Frontier but there are some things that should still be part of the flight. But still very satisfied with the experience and quality.

They switched our terminal 3 times and we were delayed for four plus hours!!!

It was an early flight and most people napped/slept and the crew let us which was nice.

The crew acted like they had never done this and kept barking passive aggressive orders at people. + the security line + the delay + sitting on the tarmac for 2 hours + none of the apps or signage updating with correct times

More inflight connection. And leg space is horrible. And the paying for baggage I'd ridiculous!!!

My flight was originally from SAT to MCO connecting from MCO to ORD. We got diverted to ATL and than Frontier staff there was sooo un helpful first they said they couldn’t give us any accommodation since our flight first got delayed that cancelled and now it’s 221am and I am still in ATL since they said they need to create a new flight my final destination is ORD and I have been delayed twice and cancelled. With no real help the frontier app didn’t work no email updates over all such a horrible experience

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!!

Remind customers of the need to have passport or new ID for boarding.

Flight was canceled. Most upsetting was message from Kayak, stating that the flight was canceled and click with Kayak for details regarding rebook, refund details. THERE'S NO INFORMATION PROVIDED BY KAYAK EXCEPT THAT FLIGHT IS CANCELED. AND NOW THIS SURVEY TO FIND OUT HOW WAS THE FLIGHT !!!!!!!

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
Oxon Hill
Martinsburg
Owings Mills
Charles Town
Greenbelt
Glen Burnie
Edgewood
Ellicott City
Colonial Beach
Pikesville
Camp Springs
Hunt Valley
Lutherville Timonium
Westminster

Everything you need to know for your flight to Dulles Intl

Information on the airport you'll fly into in Washington, D.C.