SJO - IAD

$137 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 11/1. 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 José to Washington, D.C..
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..
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Flights 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

jue., ago. 14 - sáb., ago. 16
Avianca Logo
5:10 pm - 11:45 pmSJO-IAD
4h 35mnonstop
Avianca Logo
2:35 am - 7:40 amIAD-SJO
7h 05m1 stop
$218Avianca
Find Deal
jue., ago. 21 - lun., ago. 25
Avianca Logo
5:10 pm - 11:45 pmSJO-IAD
4h 35mnonstop
Avianca Logo
5:05 pm - 11:35 pmIAD-SJO
8h 30m1 stop
$220Avianca
Find Deal
mié., sep. 17 - dom., sep. 28
United Airlines Logo
7:55 am - 7:13 pmSJO-IAD
9h 18m1 stop
United Airlines Logo
10:18 pm - 12:26 pmIAD-SJO
16h 08m1 stop
$238United Airlines
Find Deal
mié., ago. 20 - mié., ago. 27
American Airlines Logo
6:00 am - 10:56 pmSJO-IAD
14h 56m2 stops
American Airlines Logo
7:44 am - 8:15 pmIAD-SJO
14h 31m2 stops
$244American Airlines
Find Deal
sáb., ago. 16 - mar., ago. 26
United Airlines Logo
8:45 am - 8:32 amSJO-IAD
21h 47m1 stop
United Airlines Logo
6:00 am - 12:26 pmIAD-SJO
8h 26m1 stop
$247United Airlines
Find Deal
sáb., sep. 20 - mié., sep. 24
American Airlines Logo
1:45 pm - 8:46 amSJO-IAD
17h 01m1 stop
American Airlines Logo
11:47 am - 5:57 pmIAD-SJO
8h 10m1 stop
$253American Airlines
Find Deal
dom., ene. 18 - sáb., ene. 24
Copa Airlines Logo
2:20 pm - 3:13 amSJO-IAD
11h 53m1 stop
Copa Airlines Logo
3:24 pm - 8:21 amIAD-SJO
17h 57m1 stop
$258Copa Airlines
Find Deal
jue., ago. 28 - mié., sep. 3
 Logo
5:10 pm - 11:45 pmSJO-IAD
4h 35mnonstop
 Logo
2:37 am - 8:19 pmIAD-SJO
19h 42m1 stop
mié., ago. 27 - mié., sep. 3
 Logo
2:42 pm - 12:40 pmSJO-IAD
19h 58m1 stop
 Logo
2:37 am - 8:19 pmIAD-SJO
19h 42m1 stop
lun., ago. 25 - sáb., ago. 30
Copa Airlines Logo
8:11 am - 4:18 amSJO-IAD
18h 07m1 stop
Copa Airlines Logo
2:25 am - 9:04 amIAD-SJO
8h 39m1 stop
$278Copa Airlines
Find Deal
Expert advice

Expert advice for your flight from San José 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.
Airlines
Avianca

Avianca's Classic fare includes a free checked bag and carry-on, plus seat selection.


Avianca's LifeMiles program offers attractive redemption rates with Star Alliance partners.

United Airlines

United's Economy Plus offers up to 6 inches more legroom than standard economy seats.


United's Priority Boarding puts you in Zone 2, ensuring overhead bin space for carry-ons.

Airports
SJO

For a smooth departure, arrive early at SJO as security line lengths can vary. Enjoy free WiFi and numerous dining options before your flight.

Read more about SJOby Mark Chesnut
IAD

Upon arrival at IAD, use the Silver Line Metro for a convenient 50-minute ride to downtown D.C. It's a cost-effective option.

Read more about IADby Stefanie Waldek
Our travel experts
Mark Chesnut

Mark Chesnut

Expert on Avianca and SJO

Mark Chesnut

Mark Chesnut

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.

Read more
Stefanie Waldek

Stefanie Waldek

Expert on United Airlines and 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
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.

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, Monday 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 October, where tickets cost $277 (return) on average. On the other hand, the most expensive months are March and December, where the average cost of round-trip tickets is $373 and $373 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 $355, 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 3 weeks before departure, which saves you about 16% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 10 weeks before departure.

Good to know

Low seasonMarch
Cheapest flight$137
Best time to beat the crowds but there is an average 15% increase in price.
Most popular time to fly with an average 15% increase in price.
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 $137 for a one-way ticket and $218 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?

    Air Canada, and Iberia 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?

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

  • 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 Monday, Thursday, and Saturday.

  • 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 $362 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 $399 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 $135 or less one-way and $225 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

Monday

Avianca

Avianca

Thursday

Avianca

Avianca

Saturday

Avianca

Avianca

See more direct flights

Direct returns

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

Tuesday

Avianca

Avianca

Friday

Avianca

Avianca

Sunday

Avianca

Avianca

See more direct flights

Reviews of the top 5 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.
8.0
DeltaOverall score based on 7981 reviews
7.9Comfort
8.2Boarding
7.3Food
8.5Crew
7.9Entertainment
Airline reviews

My experience on any Delta flight is always overshadowed by the time Delta removed me from a flight for no apparent reason.

2.0 MediocreGim, Jul 2025BGM - DTW
Read more Delta reviews

My experience on any Delta flight is always overshadowed by the time Delta removed me from a flight for no apparent reason.

Check in process was terrible. Lady at counter didn’t know what she was doing

Delayed and took off even later than the scheduled delay time

For a 69 year old with health problems I had the worse experience, no wheelchair when I entered a lady told me to sit and wait while a gentleman told me I had to walk to the Delta station, which I did. I had a carry on and a bag, and I was traveling with my service dog, which was on his carrier and the lady charged me for my carry on luggage, beside all the waiting cause of the delay, I had to walk to get my luggage cause no wheelchair showed up, I am so disappointed. I will get in touch with the company. I got home at 3:00 am, not good for my health situation.

Great experience on Delta. Staff from baggage check to flight attendants were very courteous and professional. My only issue was a personal preference for pretzels instead of the chips and cookies that were offered.

The crew was amazing; Von, Vera and Guadalupe were very friendly and attentive throughout the entire flight. They were friendly and welcoming to everyone. A solid and dedicated team for sure!

Terrible. I was bumped off of my original flight and spent the next six days fighting to get back on it. I lost hours of my vacation trying to get this situation corrected.

There was no problems, just a little uncomfortable with seats that do not lay back a little

Always good but we must do something about people in rows ahead of you that don't put their seats back up when they are suppose to. And It's rough to not be able to even lean over to get something out of my purse.

Flight was delayed, 30+ bags had to be gate checked. Crew were very friendly!

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

Great experience with a crew always thinking in the passenger

Very happy with my flight. I would definitely recommend it.

Had to go through security at the gate again. Had to take off shoes and go through the whole thing again even though we have global entry. They asked us to check in items bought at duty free during our layover and since we checked our luggage at the original departure airport, they forced us to check in a small backpack. None of this ever happened with other airlines. In addition, no vegetarian food option and no snacks during a 7 hr flight. Luggage limits are unusually small. This is unacceptable. Will NEVER fly Copa again and will tell friends and family to avoid this airline.

Seats not reclining, no vegetarian food option, no snacks. 7.5 hr flight should have been more comfortable. Luggage limits are unusually small. Will never fly Copa again and will tell friends and family to avoid this airline.

We paid extra with copa for seats near one another The plane was changed and we lost our seats We were all Separated. We have not received a refund for our seats despite emailing and calling.

We had a five hour layover in the way home from Colombia. I read the "bout your flight" email carefully before we checked bags. We had to go through security right at the gate. Almost lost our ground coffee because that airport only allows 16 ounce of coffee and we had 18. I've been to 48 countries and never heard of a coffee restriction. I can't follow a rule I don't know about. I requested they bring our coffee to our checked luggage. Instead tey gate checked our bag for free. Back to planning transfers in Dallas I guess

It was ok. However, the food was quite poor since I don't eat pasta.

Tell people to remain in their seats during the meal/beverage distribution. Enforce boarding by group numbers. No one was checking. Tell people to turn their electronics speakers off. Bigger cups for drinks.

Enforce the boarding process by group numbers. Tell people to stay seated during the meal/drink distribution. It took forever to get food and drinks because people would not stay out the isle and let the crew do their jobs. Everyone wanted to go to the bathroom forcing the crew to enter and leave the isle constantly so people can pass. Tell people to keep their electronics off speaker mode. No one wants to hear phone conversations and music playing.

Had one staff that was not pleasant. Seems they are stressed with too many people to care for.

I would have liked an opportunity to move to a different seat ( even would have checked in my hand luggage)as I had health issues where I didn't have to clamber over the passenger next to me to for toilet use/ movement [ She was a highly unpleasant neighbor to sit next to]. In addition, I found that my European phone plan had run out of data and so I was not receiving emails from yourselves on airport wifi to be able to check in online and verifications difficult as did not accept the ticket number I had. I asked for an extra blanket but was told there was none. Then I saw other passengers receiving them. I couldn't eat the food and asked for snacks : Stewardess said " on the way" but they did not bring. The best bit was the check in process in Lisbon. Very efficient. However, I did not understand why we had to collect our bags at Washington then go through customs again. It was not explained. I also with my leg and health issue had approximately mile walk to the gate ( which then changed) . There appeared to be no moving walkways or help provided.

The attendant were friendly. I suggest you have a medical attendant on board every flight so that in case someone is sick , he/she will help them.

We had a very long diversion and our food voucher didn’t work because the restaurants were closed

United airlines, mediocre at best. No issues , nothing great . Worked for me

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.

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.

Flight delayed on both ends - have a gate ready at DCA, don't make us sit for 30min after being late to take off as well.

AA can't control the weather. But the airplane was hot and stuffy while stuck on the runway with a broken entertainment system.

very bare bones flight no entertainment screen, download shows prior to boarding to watch on phone or tablet.

Not what it used to be. The sale of food makes them look greedy!

Avianca is not what it used to be. So disappointing

It was horrible. My experience with Avianca. I didn’t know it was Pakistan international Airlines but anyway, whatever it is it is bad horrible you guys need to upgrade everything in those planes. And you guys charge $130 for a carry-on did they wanna let me in with my carry-on that I travel everywhere with the luggage you guys are such a dog thank you

why did we have to go through security mid flight

The incoming plane was late and no information was shared. They even announced we would board in 10 muntes 40 minutes prior to the plane arriving, and the website said until takeoff that we had taken off an hour earlier

Late departure. When the flight arrived in Medellin the plane sat at the gate for 20 minutes waiting for a bus for us to get off the plane.

i think the flight was late because they were so strict about measuring everyone's personal items to try and charge them $119. It was really petty and made us late.

A few years ago long flights 6 hours or so used to have video screens and they offered ear phones. The food cart used to come and drinks. Now absolutely nothing. Avianca is as bad as Spirit Airlines. Avianca will now be my last choice when booking my next flight.

Terrible, We had to stay in Bogota for two days due to weather but the airline did not provide for the same day flight. Only two days later

Excellent flight and one of the smoothest landing I’ve ever experienced

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