SJO - IAD

$102 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 3/26. 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.
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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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Cheap Flight Deals 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.

Recent round-trip flight deals from San José to Dulles Intl

Recommended round-trip deals departing in the coming months from the most popular airlines that fly from San José to Dulles Intl.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
1:08 pm - 12:09 pmSJO-IAD
21h 01m1 stop
2:22 am - 10:14 amIAD-SJO
9h 52m1 stop
$209Volaris El Salvador
Find Deal
Wed, Mar 26 - Sun, Mar 30
11:15 am - 12:09 pmSJO-IAD
22h 54m1 stop
2:05 pm - 12:22 pmIAD-SJO
24h 17m1 stop
$210Volaris El Salvador
Find Deal
Mon, Mar 17 - Tue, Mar 25
2:59 pm - 8:50 amSJO-IAD
16h 51m2 stops
5:28 pm - 12:54 pmIAD-SJO
21h 26m2 stops
$222American Airlines
Find Deal
Fri, Mar 7 - Tue, Mar 11
8:15 am - 8:50 amSJO-IAD
22h 35m2 stops
5:28 pm - 11:05 amIAD-SJO
19h 37m2 stops
$233American Airlines
Find Deal
Thu, Mar 13 - Tue, Mar 18
4:20 pm - 1:15 amSJO-IAD
6h 55m1 stop
1:05 am - 3:35 amIAD-SJO
4h 30mnonstop
$246Avianca
Find Deal
Tue, Jun 3 - Thu, Jun 5
5:30 am - 10:13 pmSJO-IAD
14h 43m1 stop
6:00 am - 8:55 pmIAD-SJO
16h 55m1 stop
$250United Airlines
Find Deal
Tue, Mar 11 - Tue, Mar 18
4:09 am - 3:03 pmSJO-IAD
8h 54m1 stop
4:34 pm - 10:05 pmIAD-SJO
7h 31m1 stop
$256Copa Airlines
Find Deal
Wed, Mar 12 - Mon, Mar 24
6:06 pm - 3:03 pmSJO-IAD
18h 57m1 stop
2:18 am - 7:34 amIAD-SJO
7h 16m1 stop
$273Copa Airlines
Find Deal
Tue, Mar 11 - Mon, Mar 17
4:20 pm - 1:15 amSJO-IAD
6h 55m1 stop
2:35 am - 7:40 amIAD-SJO
7h 05m1 stop
$284Avianca
Find Deal
Tue, May 6 - Mon, May 12
7:55 am - 11:32 amSJO-IAD
25h 37m1 stop
12:45 pm - 10:11 amIAD-SJO
23h 26m1 stop
$311United Airlines
Find Deal
Thu, Jul 3 - Thu, Jul 17

Expert advice for your flight from San José to Dulles Intl

Our travel pros reveal their best tips for your San José to Dulles Intl journey.
Airports
SJO

SJO offers free WiFi and self-check-in kiosks. Arrive early as security lines can vary. Enjoy local coffee at the Britt Shop before departure.

Read more about SJOby Mark Chesnut
IAD

Use the Silver Line Metro for a convenient 50-minute ride from IAD to downtown D.C. Check Metro schedules as it doesn't run 24 hours.

Read more about IADby Stefanie Waldek
Our travel experts
Mark Chesnut

Mark Chesnut

Expert on 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 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

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.

Flights from San José to Dulles Intl - Travel Insights & Trends

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, Wednesday 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 $264 (return) on average. On the other hand, the most expensive months are March and December, where the average cost of round-trip tickets is $429 and $396 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 $812, 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 8 weeks before departure. For the absolute cheapest price, our data suggests you should book 18 weeks before departure.

Good to know

Low season

March

High season

December

Cheapest flight

$102
Best time to beat the crowds but there is an average 29% increase in price.
Most popular time to fly with an average 19% 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 $102 for a one-way ticket and $209 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, Air Canada, and Lufthansa 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 Saturday, and Sunday.

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

    The two airlines most popular with KAYAK users for flights from San José to Washington, D.C. are Delta and Copa Airlines. With an average price for the route of $342 and an overall rating of 8.0, Delta is the most popular choice. Copa Airlines is also a great choice for the route, with an average price of $368 and an overall rating of 7.6.

  • 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.

See more FAQs

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 $259 or less one-way and $396 or less round-trip.

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

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
See more direct flights

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 8219 reviews
8.5Crew
8.2Boarding
8.0Comfort
7.9Entertainment
7.3Food
Airline reviews

Boarding is, as it always is… horrible. Gate lice. Slow moving zones. Too many people with carry ons

10.0 ExcellentStephen, Feb 2025SFO - JFK
Read more Delta reviews

Boarding is, as it always is… horrible. Gate lice. Slow moving zones. Too many people with carry ons

I loved having a most black flight crew during Black History Month; rather by design or accident I appreciated the representation. ❤️

This was the second flight this week with flight attendant Marcus I’m not sure if his last name is Lane or Lang but this guy is awesome. He funny, attentive and his service is 5 stars. Marcus makes business travel more enjoyable !

Although the flight left late, we arrived early. It was one of the quickest boarding and off boarding experiences I’ve had. It was kind of annoying the only drinks they had were water, coffee, and tea. The flight was very smooth, temperature was just right, and flight attendants were friendly.

Lower number on this flight so spaced out passengers. Able to enjoy more room to relax during flight. It was lovely.

Everything was ok!! Just bags came up a little be late.

Tasty snacks. On-time departure and early arrival. Luggage arrived quickly at the carrousel. The only negative was a man behind us that was heavily inebriated. He was served 3 double drinks during the flight. There was no telling how much he had before the flight. He was so out of it that he spilled a drink and broke the heavy liquor glass on the floor. I don't believe he should have been served so much alcohol on a two-hour flight.

Kind staff. Snacks are small but that’s the new normal.

The young man who was our flight attendant in first class was lazy and did not do his job well at all. Never offered drinks upon boarding - actually I take that back... said "are you okay with water" as if I do not want to get you anything else, only passed the snacks around once, got my drink order wrong and then never offered a second round of drinks. He was the worst I have ever seen on Delta and we fly a lot.

The crew was very kind and always smiling. The seats were great and I was very comfortable during the flight. The only thing I didn't like was that the lavatories got really dirty at some point during the flight. Other than that my experience was great

Flight attendant -José? - was over the top friendly and professional. Beautiful new plane with lie flat seats in Business (worth it!)

Horrible food. No wine or any other alcohol is served on the flight. Water is not served often and they refused when I asked for water in two cups. On the other hand, both going and coming back flights were on time.

Not being in the back row and having to pay for a better seat

Have veg meal going forward . Other than e everything was excellent !!!

I would like a glass of wine or some kind of alcoholic drink.

Everything was smooth and crew was very polite and friendly.

Seemed roomier than most US domestic airlines and they served food.

it was great! Boarded on-time, reasonable leg room, pleasant staff, decent food. The only thing is we were directed to Terminal 2 when the gate was actually in Terminal 1. Smooth ride. Landed early. Got off plane easily and quickly.

Very long delay but we just made the connection. The requested wheel chairs were not there so I had to assist/carry BOTH of my parents to the gate while carrying their bags so we could make the connection. The plane had no entertainment system and NO WIFI, legroom zero. Restrooms on ALL of flights were dirty and one restroom did not even work properly. I was surprised to see COPA like this since my flight with them in 2013 was incredible, the seats were amazing and the food options were spectacular. Of course, I see this kind of service on many airlines now, with services and hospitality at an all time low. The worse part of the trip was seeing my 90 year old parents go through hell on these flights and having to try and rush to a gate to make the next flight. Never again

Crew were all excellent. Wheel chair access for my parents was very good, although it took some time. Plane was ok but entertainment system did not work. NO WIFI on plane so could not get other things done while flying or listen to my Apple Music on my iPhone.

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.

Sucks ! All three flights I was on this trip were delayed.

The flight attendants were unhelpful. It was a packed flight, and usually a flight attendant would help find a spot in the bin for your carry on or shift things around. Neither made any effort to do so. Also, I had to then check my bag. I was told it would be on the carousel in YYZ, but it came up on the jetway. So lucky I saw others standing around for their bags. I would have walked straight past this and on to the carousel. They could have at least told me that they had given me wrong information. Very unsatisfactory.

The crew was outstanding. And the food was surprisingly good. The chicken and the pasta dish were both delicious and I was supposed with a pizza twist near Landing. We hit a lot of turbulence and the crew was calm and kind. Loved the TV in screen. Tons of new releases.

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.

It was good. It’s been a long time since my wife and I fly any where and things have changed. Our trip was to see our new grandson. We fly economy and that was not good for my bad back. It was a quick flight but uncomfortable.

Service in first class no longer exists on American Airlines .

Flight was delayed by 11 hours. Flight agent finally had to rebook us, but did not rebook fully correctly. We had to pay out of pocket to get to the hotel they booked us and couldn’t check in the next day online because the next day’s agent said they didn’t complete the process the night before.

The flight got canceled last minute with no explanation or refund, I had to rebook for a different day

from Boston to Washington was good but return to Boston was terrible, Gate was changed and plane was so uncomfortable, I thought it would crash 🙈🤦‍♀️ also when I showed my bording pass they didn't know where to send me and finally gave me direction and at the plane they said to find free seat somewhere😬🤦‍♀️🫣

Just about made it for the next flight. They need to put in longer layovers if they know they close the gate 10 min before they take off. I will never do a layover for less than 90 minutes

Flight attendants on American Airlines are rude very harsh with their time of voice. Nearly identical experience as spirit airlines. However, from Spirit Airlines, you expect this level of mediocre service. You do not expect this from the big three..

I enjoyed it! In that case, I should have been offered this choice. On my first trip to Miami, I was asked to pay $320 for my luggage just for getting it totally broken. I cannot accept this situation at all!!!!

Overpriced checked bag price of $120 and they charge you for carryon if the size is not minimal of $120.

The connection time is too short to pass through customs and once you do clear customs the connecting flight is in another terminal that is not close.

Horrible. I have been trying to speak to a representative to know why I was over charged but I get redirected to AI Vianca everytime with no results. Is there an agency that oversees airline gouging? I will never fly or recommend Avianca to anyone not that you care.

Felt very cramped in the back of plane. There was an hour delay for take off sitting on the runway, but we did arrive on time. They charge $120 for carry on bag and backpack at the airport its ridiculous.

Almost we lost our connection from Bogota to Aruba 🥴 Because we get out late from the plane of Medellin

Same experience, very poor food, drinks or entertainment while flying. There are some products offered to buy but only using debit or credit cards . No friendly for seniors or people without cards.

Avíanca now has cero entertainment, food and even water for their travels in economy. We spend all 6 or more hours ignored or we are offered products to buy using only credit card .

Charging for WATER on a SIX hour flight in repugnant. Enough said!

Poor In food , poor in entertainment , passengers don’t get for free not even water

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