SJU - IAD

$83 Find Cheap Flights from San Juan 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 from San Juan to Dulles Intl departing on 6/19. 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

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 in flight searches from San Juan 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 in flight searches from San Juan to Washington, D.C., as well as popular online travel agencies
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Flights Deals

Cheap Flights from San Juan to Dulles Intl (SJU-IAD)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from San Juan 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 San Juan to Dulles Intl

Sun, Sep 21 - Thu, Sep 25
Frontier Logo
9:07 am - 7:21 pmSJU-IAD
10h 14m1 stop
Frontier Logo
8:06 pm - 2:34 amIAD-SJU
6h 28m1 stop
$176Frontier
Find Deal
Sat, Sep 20 - Thu, Sep 25
Frontier Logo
3:40 am - 7:21 pmSJU-IAD
15h 41m1 stop
Frontier Logo
8:06 pm - 2:34 amIAD-SJU
6h 28m1 stop
$179Frontier
Find Deal
Thu, Jul 10 - Sun, Jul 20
Frontier Logo
7:35 am - 11:31 amSJU-IAD
3h 56mnonstop
Frontier Logo
12:24 pm - 4:21 pmIAD-SJU
3h 57mnonstop
$186Frontier
Find Deal
Tue, Jul 8 - Tue, Jul 15
United Airlines Logo
1:10 am - 1:49 pmSJU-IAD
12h 39m2 stops
United Airlines Logo
5:55 pm - 5:30 amIAD-SJU
11h 35m1 stop
$255United Airlines
Find Deal
Tue, Jul 1 - Fri, Jul 11
United Airlines Logo
1:25 pm - 10:27 pmSJU-IAD
9h 02m1 stop
United Airlines Logo
5:55 pm - 5:30 amIAD-SJU
11h 35m1 stop
$260United Airlines
Find Deal
Wed, Jul 16 - Mon, Aug 18
American Airlines Logo
7:54 am - 5:09 pmSJU-IAD
9h 15m1 stop
American Airlines Logo
7:44 am - 9:30 pmIAD-SJU
13h 46m1 stop
$305American Airlines
Find Deal
Tue, Nov 11 - Tue, Nov 18
American Airlines Logo
4:50 pm - 11:57 pmSJU-IAD
8h 07m1 stop
American Airlines Logo
10:52 am - 8:50 pmIAD-SJU
8h 58m1 stop
$327American Airlines
Find Deal
Thu, Jul 3 - Mon, Jul 7
 Logo
2:42 am - 8:07 pmSJU-IAD
17h 25m1 stop
 Logo
1:36 pm - 2:39 amIAD-SJU
13h 03m1 stop
Thu, Jul 17 - Sun, Jul 20
 Logo
10:14 pm - 2:23 pmSJU-IAD
16h 09m2 stops
 Logo
11:58 am - 9:09 pmIAD-SJU
33h 11m2 stops
Thu, Jul 24 - Tue, Jul 29
Delta Logo
5:45 pm - 12:34 amSJU-IAD
6h 49m1 stop
Delta Logo
12:12 pm - 11:59 pmIAD-SJU
11h 47m1 stop
$365Delta
Find Deal
Expert advice

Expert advice for your flight from San Juan to Dulles Intl

 
Snippets provided in this section are AI-generated based on a summarization of KAYAK-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Airports
SJU

San Juan Airport is efficient and compact. Stock up on food before late-night flights as most shops close early.

Read more about SJUby Gabriel Leigh
IAD

The Silver Line Metro connects Dulles to downtown D.C. in about 50 minutes, offering a convenient travel option.

Read more about IADby Stefanie Waldek
Our travel experts
Stefanie Waldek

Stefanie Waldek

Expert on IAD

Stefanie Waldek

Stefanie Waldek

Stefanie Waldek is a freelance space, travel, and design writer based in Saratoga Springs, NY. Her words have appeared in Space.com, Travel + Leisure, Condé Nast Traveler, Architectural Digest, and House Beautiful, among other publications. An expert in aviation and expedition cruising, Stefanie is frequently up in the air or on the sea, likely en route to Antarctica or the Arctic.

Read more
Gabriel Leigh

Gabriel Leigh

Expert on SJU

Gabriel Leigh

Gabriel Leigh

Gabriel is a writer and video creator. As senior content producer for Flightradar24 and Monocle’s transport correspondent, he keeps a close eye on aviation in particular. He has also written travel articles for the likes of The New York Times. Born in New York but raised around the world, he now lives in Sweden. He’s been to 75 countries, flying 2.3 million miles on 113 airlines and through 234 airports in the process.

Read more
Useful Info

KAYAK's insights & trends for San Juan to Dulles Intl flights

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

What’s the cheapest day of the week to fly from San Juan to Washington Dulles Airport?

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

If you are looking for a flight deal from San Juan to Washington Dulles Airport, look for departures on Thursdays and avoid leaving on a Monday, as it's usually the priciest day. When flying back from Washington Dulles Airport, Tuesday is the cheapest day to fly and Friday is the most expensive.

What is the cheapest month to fly from San Juan Luis Munoz Marin Intl Airport to Washington, D.C. Dulles Intl Airport?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from San Juan Luis Munoz Marin Intl Airport 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 from San Juan Luis Munoz Marin Intl Airport to Washington, D.C. Dulles Intl Airport is March, where tickets cost $294 (return) on average. On the other hand, the most expensive months are April and November, where the average cost of round-trip tickets is $545 and $505 respectively.

How far in advance should I book a flight from San Juan Luis Munoz Marin Intl Airport 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 from San Juan Luis Munoz Marin Intl Airport 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 on the flight from San Juan Luis Munoz Marin Intl Airport to Washington, D.C. Dulles Intl Airport, you should book around 2 weeks before departure. For the absolute cheapest price, our data suggests you should book 16 weeks before departure.

Good to know

Low seasonMarch
High seasonDecember
Cheapest flight$83
Best time to beat the crowds with an average 31% drop in price.
Most popular time to fly and prices are also 2% lower on average.
Flight from San Juan to Washington Dulles Airport

When to book flights from San Juan to Dulles Intl

Are your dates flexible? Find out the best times to travel from San Juan to Dulles Intl based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking San Juan to Washington Dulles Airport flights

  • What is the cheapest flight from San Juan Luis Munoz Marin Intl Airport to Washington, D.C. Dulles Intl Airport?

    In the last 3 days, the lowest price for a flight from San Juan Luis Munoz Marin Intl Airport to Washington, D.C. Dulles Intl Airport was $83 for a one-way ticket and $176 for a round-trip.

  • Do I need a passport to fly between San Juan and Washington Dulles Airport?

    Yes, you'll most likely have to show a valid passport before boarding the plane in San Juan and on arrival in Washington Dulles Airport.

  • Which airports will I be using when flying from San Juan to Washington Dulles Airport?

    San Juan and Washington Dulles Airport are both served by 1 main airport. You will leave San Juan from San Juan Luis Munoz Marin Intl and will be arriving at Washington, D.C. Dulles Intl.

  • Which airlines offer Wi-Fi service onboard planes from San Juan to Washington Dulles Airport?

    All the following airlines offer inflight Wi-Fi service on the San Juan to Washington Dulles Airport flight route: JetBlue, Iberia, Finnair, British Airways, Delta, and Air Canada.

  • Which aircraft models fly most regularly from San Juan to Washington Dulles Airport?

    The Airbus A321neo is the aircraft model that flies most regularly on the San Juan to Washington Dulles Airport flight route.

  • Which airline alliances offer flights from San Juan to Washington Dulles Airport?

    Star Alliance is the only airline alliance operating flights between San Juan and Washington Dulles Airport.

  • On which days can I fly direct from San Juan to Washington Dulles Airport?

    There are nonstop flights from San Juan to Washington Dulles Airport on a daily basis.

  • Which is the best airline for flights from San Juan to Washington, D.C., Delta or United Airlines?

    The two airlines most popular with KAYAK users for flights from San Juan to Washington, D.C. are Delta and United Airlines. With an average price for the route of $431 and an overall rating of 8.0, Delta is the most popular choice. United Airlines is also a great choice for the route, with an average price of $455 and an overall rating of 7.4.

  • How does KAYAK find such low prices on flights from San Juan 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 from San Juan to Washington Dulles Airport.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from San Juan 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 from San Juan is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from San Juan 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 to San Juan with another airline. Booking your flights between San Juan and IAD can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from San Juan 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 from San Juan up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from San Juan Luis Munoz Marin Intl Airport to Washington, D.C. Dulles Intl Airport

  • Looking for a cheap flight? 25% of our users found flights on this route for $140 or less one-way and $304 or less round-trip.

Prefer to fly direct from San Juan to Washington Dulles Airport?

Find which airlines fly direct from San Juan Luis Munoz Marin Intl Airport to Washington, D.C. Dulles Intl Airport, which days they fly and book direct flights.

Direct departures

San Juan Luis Munoz Marin Intl to Washington, D.C. Dulles Intl

Monday

Air Canada, United Airlines

Air Canada, United Airlines

Tuesday

Air Canada, Frontier, United Airlines

Air Canada, Frontier, +1 more

Wednesday

Air Canada, United Airlines

Air Canada, United Airlines

Thursday

Air Canada, Frontier, United Airlines

Air Canada, Frontier, +1 more

Friday

Air Canada, United Airlines

Air Canada, United Airlines

Saturday

Air Canada, United Airlines, Frontier

Air Canada, United Airlines, +1 more

Sunday

Air Canada, Frontier, United Airlines

Air Canada, Frontier, +1 more

See more direct flights

Direct returns

Washington, D.C. Dulles Intl to San Juan Luis Munoz Marin Intl

Monday

Air Canada, United Airlines

Air Canada, United Airlines

Tuesday

Air Canada, Frontier, United Airlines

Air Canada, Frontier, +1 more

Wednesday

Air Canada, United Airlines

Air Canada, United Airlines

Thursday

Air Canada, Frontier, United Airlines

Air Canada, Frontier, +1 more

Friday

Air Canada, United Airlines

Air Canada, United Airlines

Saturday

Air Canada, Brussels Airlines, United Airlines, +1 more

Air Canada, Brussels Airlines, +2 more

Sunday

Air Canada, Brussels Airlines, Frontier, +1 more

Air Canada, Brussels Airlines, +2 more

See more direct flights
See more direct flights

Top 3 airlines serving from San Juan to Dulles Intl

 
See real verified KAYAK customer reviews for airlines flying from San Juan to Washington, D.C.. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from San Juan 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.
8.0
DeltaOverall score based on 7958 reviews
8.2Boarding
7.3Food
8.5Crew
7.9Entertainment
7.9Comfort
Airline reviews

Most aspects were good however if they assign boarding zones they ought to enforce them or why bother? My luggage from SAN-JFK-MAD was lost in NY so I without my main bag for two days upon arrival in Spain. They were helpful in tracking it and eventually delivered it to my hotel. The flub was because of a delay upon arrival in NYC. I had booked 2 1/2 hours between flights but we had to hold on the taxiway for an hour after landing while waiting for a clear gate which likely caused the baggage error.

8.0 ExcellentMathew, Jun 2025SAN - JFK
Read more Delta reviews

Most aspects were good however if they assign boarding zones they ought to enforce them or why bother? My luggage from SAN-JFK-MAD was lost in NY so I without my main bag for two days upon arrival in Spain. They were helpful in tracking it and eventually delivered it to my hotel. The flub was because of a delay upon arrival in NYC. I had booked 2 1/2 hours between flights but we had to hold on the taxiway for an hour after landing while waiting for a clear gate which likely caused the baggage error.

Excellent check-in. Crew was good. Excellent communication from flight deck.

Great overall. There was a bit of turbulence so they could only serve water because too much turbulence for the carts. Was glad they prioritized safety though

Excellent flight, the planes were newer, they did a nice job with boarding, great service overall.

Great service. Flight was delayed while we sat on the runway for a couple of hours. Weather related. Staff made is very bearable. The steward servicing the first class cabin was exceptional. Thank you! 💗

5 hours of delay that could've been much shorter if Delta had taken the 1 hour delay they imposed on the flight before boarding to run any of the plane checks required for flight to find the hydraulic issue that required nearly 3 hours to fix. $24 of meal credit buys a sandwich and a soft drink. Poor communication within the terminal about what gate we'd be re-boarding from and when we'd be re-boarding.

Amazing flight! I have never noticed the uniforms of the attendants before in twenty years of flying except today when one female had the most amazing dress on. It was beautifully designed and showed she was in charge. I never dreamed I would google who designed Delta uniforms . The ultimate compliment is when another woman admires your outfit. . I hope your designer puts it on the market

It would be nice if was given wires ear buds. Overall was a good experience was able to sleep on the plane

My flight was 6 pm 6/6. Every hour they delayed it again - air condition issues then no pilot then the crew had worked too many hours and cancelled the flight at 11 pm. Sent customers to NJ a 45 minutes uber ride to a hotel. Had to be back by 5 am for a 7 am flight and again no pilot etc with another three hours of delays.

The entertainment and wifi mostly didn't work on this flight.

Turbulent taking off & landing to Dulles from Raleigh. Flight from Dulles to Tokyo very good!!

Very nice and clean plane. Transit time between flights was tight though

Mostly the experience was good except for the flight changes made by UA which meant longer layover in DC

Terrible. First of all we were delayed 4 3/4 hours departing Honolulu. As we had to leave our condo and the rental car had to be returned we had to go to the airport. Even though we had a business class boarding pass to Washington, since we did not have business class to Montreal we could not access the lounge without paying a $59 fee each. This does not make sense to us. Since we could not meet our original connection United booked us to Montreal via New York LaGuardia on Air Canada. In Washington a further delay got us into LaGuardia too late to make our connection to Montreal so we were booked on another Air Canada flight 3 hours later. We were originally scheduled to arrive in Montreal at 10:40 and arrived at 19:55. A totally exhausting day, United did not offer a meal voucher or any type of compensation. Air Canada did give us a digital meal voucher. The food in United business class is poor among all meals offered. The pods look nice but are not that confortable. Overall would not fly on United again.

Change cabin crew assisting business class. Not taking care, ignoring requests and calls. Never had such an experience in business class.

United left one of our bags back in SFO but that’s not my real complaint. The complaint is how it all went down. So we checked in the day before online and were told we could use the quick drop for luggage. So the next day I used baggage quick drop curbside at SFO. The agent mistakenly didn't tag my bag as he put my bag on the conveyor belt untagged. We immediately alerted him he had not tagged the bag. I walked with him to the baggage service office to find my bag and tag it. We waited outside the office for 10 mins. He came out and said everything was ok and the bag was going to be tagged and on my flight. We received a text that one of our bags was on the flight but the other was not. I alerted my first class flight attendant immediately upon boarding the flight. She was helpful and said she’d get it sorted out right away. She called over the gate agent. The gate agent used my bag number and looked over information on her device. She said my bag was on the flight. The flight attendant was standing with her, looking at the device, and also said “yep it’s on the flight”. During the flight the flight attendant made reference to how reassuring it must feel knowing the bag was on the flight. Upon arriving to IAD we received a text that my bag was not on my flight. The text said my bag would arrive to my final destination LIS 24 hrs late. I understand that mistakes happen. I was totally ok with my bag mistakenly not getting tagged at the quick drop. I was fine with walking down to baggage services to tag my bag. But, what I am not ok with is that the United staff said they fixed the mistake two different times, assuring me twice that my bag would be/was on the plane…and it wasn’t. I expected better attention by the employees, for them to do what they said they were going to do. We also spent extra money to upgrade our seats to first class, including the entire return leg from Lisbon to San Francisco because we wanted a smoother and more relaxing travel experience. Our money was not well spent. We will not be using United for travel going forward.

The flight was delayed, it took longer than anticipated because of weather, and they broke my luggage.

Horrifying! And I am almost 2 million miles with United. Late by 3 1/2 hours. Worst: after two hours on the plane waiting, they decided that one of the tires had been damaged and then decided to change it. Another hour and a half to change the tire!!!!! NO EXCUSE FOR THIS. The crew didn't even offer a glass of water until we had been on the plane for FIVE hours. This is the worst airline in the world. I'm simply stuck because they fly on the only routes I need.

Gate got changed about 4 times. Very confusing and very crowded. If you don’t have wifi to help get updates, you can be in deep trouble.

Attendants zipped through cabin so fast hardly anyone got the water they told us we could have in the short flight. Nothing else was offered.

Cancelled flight after I arrived at airport after 75 min drive and parking. Next flight was 4 days in the future. Had to scramble and buy a much more expensive flight on another carrier.

Book with frontier airlines with the mentality that they'll cancel your flight, kick you off and lose your luggage. Anything besides that is a win. Compare prices with other airlines (to include luggage) and if frontier is still worth it, book it but know all of their policies.

You get what you pay for nothing essentially but a hard uncomfortable seat that doesn’t recline and kids screaming all around you and chaotic boarding and limited check bag weight allowance when compared to other airlines

I never got to experience the flight because they delayed my first flight and I missed this one. Then Frontier didn't want to help me rebook a flight to get me to my final destination.

The Boarding process in Denver was chaotic, and since the line was so long, we were lined up very far from the gate. If there were any announcements from the gate staff, we didn't hear them. The flight attendants were spectacular. The only negative part of the flight was sitting by a 2 1/2 year old who was unruly and unfortunately had parents that matched his behaviors. Also, the restaurants in Denver on the E concourse, they didn't have food (passengers could only order 1 item on the entire menu) or the restaurants had 12-14 people waiting for orders to be prepared and another 6 people waiting to order. If you have a layover in Denver and need to grab food, be prepared to visit the shops with pre-packaged sandwiches, or you can visit another concourse but it may take a while to transit throughout the airport.

I liked the turn-style feature at gate 209B at LAX. Very efficient process. The gate staff also made several, clearly directed announcements so I felt very informed.

Although an hour and a half early was told by staff at check in they had overbooked and could not check us in for the flight.

The crew was delayed because they came on another flight that was delayed due to weather 10pm flight left at 1.30 am The airline made no effort to align alternate crew

Plane was down graded and I lost my uncharged exit row with more leg room. No mention or offer of refund from podium. Flight attendant was nice to explain this happens often and that I could request a refund via online form submission. I did this and have heard nothing back.

Worst airline experience. They were rude and kept changing our seats and/or giving our seats away so our family didn’t get to sit with each other. Almost everyone we dealt with at both airports with this airline was rude. The app kept giving us wrong information making things take longer. Dealing with them before TSA can take close to an hour…longer than I’ve ever had to deal with before. Never using this airline again.

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