SJO - IAD

$128 Find Cheap Flights from San José 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 José to Dulles Intl departing on 2/12. 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 in flight searches from San José 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 José to Washington, D.C., as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$199
Typical prices: $284-$439
Volaris
Mon 3/9Tue 3/17
SJO - IAD • 1 stop
Cheapest non-stop
$271
Typical prices: $345-$972
Avianca
Thu 3/5Tue 3/17
SJO - IAD • Non-stop
Our travelers' advice
AI-powered summary based on content written by travel experts. AI can make mistakes.
Avianca's Classic fare includes a checked bag and seat.
United's Economy Plus offers extra legroom benefits.
Expert advice
Expert advice
Expert advice
Expert advice
Top airlines
Volaris
Cheapest • from $199 (round-trip)
Copa Airlines
Best reviews • 7.5 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to travel
November
Cheapest • 17% price drop
July
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Nonstop flights
2 days a week
There are direct flights from San José to Dulles Intl 2 days a week: Sat, Sun.
Direct flights
Direct flights
Direct flights
Direct flights
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Dulles Intl!
Flight Deals
Booking Insights
Expert advice
Flight Deals

Cheap Flights from San José to Dulles Intl (SJO-IAD)

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

Mon, Mar 9 - Tue, Mar 17
Volaris Logo
4:17 pm - 12:27 pm
SJO
-
IAD
18h 10m
1 stop
Volaris Logo
2:35 am - 2:03 pm
IAD
-
SJO
13h 28m
1 stop
$199Volaris
Wed, Mar 4 - Tue, Mar 17
Volaris Logo
2:42 pm - 11:45 pm
SJO
-
IAD
8h 03m
1 stop
Volaris Logo
2:35 am - 2:03 pm
IAD
-
SJO
13h 28m
1 stop
$201Volaris
Wed, Feb 18 - Sun, Feb 22
Volaris Logo
2:42 pm - 11:27 am
SJO
-
IAD
19h 45m
1 stop
Volaris Logo
1:07 pm - 6:50 am
IAD
-
SJO
18h 43m
1 stop
$212Volaris
Wed, Feb 11 - Tue, Feb 17
Avianca Logo
4:30 pm - 1:40 am
SJO
-
IAD
8h 10m
1 stop
Avianca Logo
4:15 pm - 11:30 pm
IAD
-
SJO
8h 15m
1 stop
$217Avianca
Wed, Mar 4 - Tue, Mar 17
Avianca Logo
4:30 pm - 1:40 am
SJO
-
IAD
8h 10m
1 stop
Avianca Logo
2:30 am - 7:45 am
IAD
-
SJO
7h 15m
1 stop
$224Avianca
Thu, May 7 - Tue, May 12
Avianca Logo
7:45 pm - 4:20 am
SJO
-
IAD
6h 35m
1 stop
Avianca Logo
3:40 am - 8:30 am
IAD
-
SJO
6h 50m
1 stop
$227Avianca
Tue, Mar 17 - Mon, Mar 23
Avianca Logo
7:50 pm - 4:10 am
SJO
-
IAD
6h 20m
1 stop
Avianca Logo
2:30 am - 7:45 am
IAD
-
SJO
7h 15m
1 stop
$235Avianca
Sat, Mar 7 - Sun, Mar 15
Multiple Airlines Logo
5:00 pm - 11:27 am
SJO
-
IAD
17h 27m
1 stop
Multiple Airlines Logo
2:07 pm - 6:50 am
IAD
-
SJO
18h 43m
1 stop
$236Multiple Airlines
Fri, May 1 - Mon, May 4
Avianca Logo
3:10 pm - 4:20 am
SJO
-
IAD
11h 10m
1 stop
Avianca Logo
3:40 am - 8:30 am
IAD
-
SJO
6h 50m
1 stop
$237Avianca
Fri, May 1 - Sat, May 9
Avianca Logo
3:10 pm - 4:20 am
SJO
-
IAD
11h 10m
1 stop
Avianca Logo
5:35 pm - 11:40 pm
IAD
-
SJO
8h 05m
1 stop
$238Avianca
Booking Insights

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

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

How much is a round-trip flight from San José to Washington, D.C. Dulles Intl Airport?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from San José to Washington, D.C. Dulles Intl Airport departing in March.

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

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

For San José to Washington Dulles Airport, Friday is the cheapest day to fly on average and Sunday is the most expensive. Flying from Washington Dulles Airport back to San José, the best deals are generally found on Tuesday, with Saturday being the most expensive.

What is the cheapest month to fly from San José 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 José 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 José to Washington, D.C. Dulles Intl Airport is November, where tickets cost $254 (return) on average. On the other hand, the most expensive months are March and April, where the average cost of round-trip tickets is $365 and $363 respectively.

Can I save money by flying with a layover from San José to Washington, D.C. Dulles Intl Airport?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of $255, prices are generally cheapest when you fly direct.

How far in advance should I book a flight from San José 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 José 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 José to Washington, D.C. Dulles Intl Airport, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 19 weeks before departure.

Expert advice

Expert advice for your flight from San José to Dulles Intl

 
AI-powered summary based on content written by travel experts. AI can make mistakes.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Mark Chesnut

Mark Chesnut

Expert on Avianca and SJO

Mark Chesnut is a travel writer and public speaker with more than 30 years of experience. The 2019 winner of the NLGJA Excellence in Travel Writing Award, Mark is the author of the book “Prepare for Departure” and has covered air travel for multiple top consumer and trade media outlets.

Stefanie Waldek

Stefanie Waldek

Expert on United Airlines and IAD

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.

Good to know

Low seasonJune
Cheapest flight$128
Best time to beat the crowds but there is an average 15% increase in price.
Most popular time to fly and prices are also 4% lower on average.
Flight from San José to Washington Dulles Airport

When to book flights from San José to Dulles Intl

Are your dates flexible? Find out the best times to travel from San José 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 José to Washington Dulles Airport flights

  • What is the cheapest flight from San José to Washington, D.C. Dulles Intl Airport?

    In the last 3 days, the lowest price for a flight from San José to Washington, D.C. Dulles Intl Airport was $128 for a one-way ticket and $199 for a round-trip.

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

    A passport is required to fly from San José to Washington Dulles Airport.

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

    Iberia, American Airlines, and Air Canada offer inflight Wi-Fi service on the San José to Washington Dulles Airport flight route.

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

    The Airbus A320neo is the aircraft model that flies most regularly on the San José to Washington Dulles Airport flight route.

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

    oneworld, and Star Alliance are the airline alliances operating flights between San José and Washington Dulles Airport, with oneworld being the most commonly used for this route.

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

    You can catch a nonstop flight from San José to Washington Dulles Airport on Saturday, and Sunday.

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

    The two airlines most popular with KAYAK users for flights from San José to Washington, D.C. are Copa Airlines and United Airlines. With an average price for the route of $347 and an overall rating of 7.5, Copa Airlines is the most popular choice. United Airlines is also a great choice for the route, with an average price of $281 and an overall rating of 7.4.

  • How does KAYAK find such low prices on flights from San José 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 José 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 José 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 José 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 José 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 José with another airline. Booking your flights between San José 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 José 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 José 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 José to Washington, D.C. Dulles Intl Airport

  • Looking for a cheap flight? 25% of our users found flights on this route for $222 or less one-way and $478 or less round-trip.

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

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from San José Juan Santamaria Intl to Washington, D.C. Dulles Intl.
Find which airlines fly direct from San José Juan Santamaria Intl Airport to Washington, D.C. Dulles Intl Airport, which days they fly and book direct flights.

Direct departures

San José Juan Santamaria Intl to Washington, D.C. Dulles Intl

Saturday

United Airlines

United Airlines

Sunday

United Airlines

United Airlines

See more direct flights

Direct returns

Washington, D.C. Dulles Intl to San José Juan Santamaria Intl

Saturday

United Airlines

United Airlines

Sunday

United Airlines

United Airlines

See more direct flights

Reviews of the top 4 airlines serving from San José to Dulles Intl

 
See real verified KAYAK customer reviews for airlines flying from San José 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 José 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.
7.5
Copa AirlinesOverall score based on 1559 reviews
8.1Crew
7.4Comfort
7.8Boarding
6.8Entertainment
6.8Food
Airline reviews

A lot things happened in this trip.The fly should be less stress.

6.0 GoodIrma, Jan 2026
PTY - MIA
Read more Copa Airlines reviews

A lot things happened in this trip.The fly should be less stress.

There should be a warning regarding the quality of the aircraft on the website as we reserve the tickets. There was no TV or any type of screen onboard. The wifi they offer is good for nothing. Traveling 9 hours straight with kids and no type of entetainment was horrible. I wish I had been informed prior so I could buy a ticket with another airline. The food was a joke too. A very tiny portion per passenger. They also charged $100 per checked bag. With United I used to pay $60. So, fair to say that I wont be flying Copa anymore. Their aircraft was super old, outdated, no entertainment, with nearly no onboard food.

The flight was good overall. Everything went smoothly, although the landing was a bit rough. Still, it was a pleasant experience

Very strict carry on rules meant most of the plane had to gate check their luggage. As is often the case had things that were broken because of this, but I appreciated not being charged to gate check. Otherwise good flight and great crew once on the plane

Some of the Air hostesses are not that friendly. Need improvement

They were super friendly bumped me up to exit row free of charge, All flight legs were on time

We had a great flight just wished they had a tv so we can see a movie that would of made my trip excellent.

horrible service, food was an embarrassment, no charging for cellphones, stay away

the food served was an embarrassment. No connection for charging the cellphone... What a crappy airline.

Great experience with a crew always thinking in the passenger

Good crew. Boarding delays. Almost two hours wait for the bags in DC.

Unfortunately weather delayed our flight waiting for our plane to arrive and due to a little snow time was needed to deice the plane so departure was very delayed and I missed the connecting flight

It was great. There were some issues prior to takeoff. The weather was poor so we had to go through deicing, and we were delayed a bit by the pilots' concern about one of the engines, but that's aviation. The pilots handled everything with aplomb, and kept us apprised

The seats were comfortable and we had leg room. Great entertainment.

The flight crew where really good. Better then the crew from BNE to SFO

Safe made to destination. Late to start at GVA for icy reasons but we fought our next fly.

Miserable. They moved my seat, but canceled the next leg of my flight. I resolved the issue at my transfer, but that resulted in lost luggage that has taken days off my schedule with no resolution. Worse, they fail to interface effectively with Lufthansa, forcing me to bounce between two equally useless help desks. The apps are unable to handle the situation, the bag dropped off the tracker, and while the call centers are polite, they do not provide written information to assist with cross-airline communication.

l really enjoy very much the flight was very pleasant

The flight was delayed for 1:30 hours for maintenance issues. They should give more information about connecting flights. For a Business Cabin the Crew was mediocre.

The food is terrible. The same pasta or chicken with bad taste and presentation

Concern Regarding Significant Gate Delay and Jet Bridge Issue Dear Customer Relations Team, I am writing to express my disappointment with the experience I had on my recent flight AA 2414 on Sunday January 18, 2026. What should have been a routine departure turned into a frustrating and avoidable delay due to an issue with the jet bridge at the gate. As a result, the flight was delayed by approximately 90 minutes while multiple gate changes were attempted. The lack of clear communication during this period made the situation even more challenging. Passengers were left uncertain about the cause of the delay, the expected timeline, and the next steps. This not only disrupted travel plans but also created unnecessary stress for everyone on board. I understand that operational issues can arise, but a malfunctioning jet bridge and the resulting extended delay suggest an area where procedures or equipment maintenance may need attention. I hope you will review this incident to prevent similar disruptions in the future. I would appreciate acknowledgment of this concern and consideration of appropriate compensation for the inconvenience and lost time caused by this delay. Thank you for taking the time to review my experience. I look forward to hearing from you. Sincerely, Dion Dillard

I got sick nothing contagious but distressing enough and the care I received on the flight was astounding.

Horrible. Both legs of my flight were delayed more than 6 hours. No compensation, no screens on the plane, and the plane was not clean.

After we'd boarded , they canceled the flight. The crew didn't even know , we just all received text messages. Then after they deplaned us , AA was just like "too bad, go F your self, we sure ain't gonna help you"

Initial flight was cancelled at the time of arrival to the airport, flight alternative requires switching from direct to flight with a layover, and the plane felt like it would split apart, it was so rattle-y.

Weather delay for 2.5 hours followed by half hour crew delay, did not have ginger ale, uncomfortable seats

It was nobody’s fault - but the plane came 4-hrs late and we were updated randomly in 20-30 mins increments which left us hostage to sit and wait expectantly. It was very long and got very late. Our plane didn’t land until nearly 1 am! Also the toilet wasn’t working. The hosts were nice enough but were clearly “about to pass out” as one told me. Lastly, there was no snack or even time for it. Just a bad experience overall.

When I'm on a 5hr 22 minute flight I expect food to be purchased. Especially when American makes a very tight connection time where u have to run to make the long flight. Chips and nuts are unacceptable and being told you should be in first class to get a meal is also unacceptable. I didn't change the flight times American Airlines did.

The boarding crew was incredibly helpful getting me on an earlier flight

Great experience. Flight boarded easily. Departed early. Smooth flight. Great arrival in DC--almost no taxing! Almost direct to gate from runway. Crew was terrific. Same cookies and beverages in main cabin. I did not use the entertainment system on this flight.

It was delayed and I lost my connection flight to Cali and I missed my Mom's funeral and avianca lost my check in luggage

Not good, tried to purchase a first class upgrade and they couldn’t get it done. Was super uncomfortable the whole time.

We waited for one hour to deboard the plane after landing. That could be better

I handed in my suitcase in perfect condition at SAL Airport. And in MIA Airport I received it with one corner broken and the wheels bent.

I like the crew members they're very friendly. Clean plane. The flight was on time. I dont like the comfort my car seat its better that the plane seats. They charge for everything. This airline was very good. Now it's a low cost airline

6 hour flight and have to pay for everything 100 dollars to add a carry-on bag is insane

Did not fly with Pakistan International Airlines. Have never flown with Pakistan International Airlines.

Boarding, crew were excellent, food was ok and entertainment need to improve

Luggage lost and nowhere to be found, no response from either airline regarding my bag

The check in is the only positive thing in Avianca. The seat is the most uncomfortable I have traveled, the distance is minimal.

Everything you need to know for your flight from San José to Dulles Intl

Information on your arrival and departure airports