WAS - SJO

$94 Find Cheap Flights from Washington, D.C. to San José

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Washington, D.C. to San José departing on 4/10. 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 San José

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Washington, D.C. to San José.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Washington, D.C. to San José.
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Everything you should know

Cheapest round-trip
$288
Typical prices: $390-$287
Avianca
Thu 5/14Mon 5/18
IAD - SJO • 1 stop
Cheapest non-stop
$304
Typical prices: $583-$356
Avianca
Thu 5/7Tue 5/12
IAD - SJO • Non-stop
Advice from real travelers
AI-powered summary based on content written by travel experts. AI can make mistakes.
United's Economy Plus offers extra legroom for comfort.
Arrange transportation in advance at SJO for convenience.
Expert advice
Expert advice
Expert advice
Expert advice
Nonstop flights
Sat, Sun
You can fly direct with United Airlines. Average duration is 4h 50m
Direct flights
Direct flights
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Direct flights
Direct flights
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Top airlines
Cheapest • from $288 (round-trip)
Best reviews • 8.0 score
Airline reviews
Airline reviews
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Airline reviews
Airline reviews
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Top layover airports
Cheapest • Avg $304 (round-trip)
Shortest trip • 6h 56m (one-way)
Insights
Insights
Insights
Insights
Top routes
Cheapest • 26% average savings
Most popular
Insights
Insights
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Insights
When to travel
Cheapest • 25% price drop
Most popular
Good to know
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Flight Deals
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Flight Deals

Cheap Flights from Washington, D.C. to San José (WAS-SJO)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Washington, D.C. to San José 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 Washington, D.C. to San José

Thu, May 14 - Mon, May 18
Avianca Logo
3:40 am - 8:30 am
IAD
-
SJO
6h 50m
1 stop
Avianca Logo
7:45 pm - 4:20 am
SJO
-
IAD
6h 35m
1 stop
$288Avianca
Sat, Apr 25 - Sat, May 2
Avianca Logo
5:35 pm - 11:40 pm
IAD
-
SJO
8h 05m
1 stop
Avianca Logo
3:10 pm - 2:45 am
SJO
-
IAD
9h 35m
1 stop
$289Avianca
Sun, Apr 12 - Wed, Apr 15
Multiple Airlines Logo
6:00 am - 12:12 pm
IAD
-
SJO
8h 12m
1 stop
Multiple Airlines Logo
3:10 pm - 2:45 am
SJO
-
IAD
9h 35m
1 stop
$292Multiple Airlines
Sat, May 9 - Wed, May 13
Southwest Logo
8:40 am - 11:25 am
BWI
-
SJO
4h 45mnonstop
Southwest Logo
9:00 am - 7:00 pm
SJO
-
BWI
8h 00m
1 stop
$315Southwest
Sun, Apr 19 - Thu, Apr 23
United Airlines Logo
6:00 am - 12:21 pm
DCA
-
SJO
8h 21m
1 stop
United Airlines Logo
11:13 am - 10:15 pm
SJO
-
DCA
9h 02m
1 stop
$318United Airlines
Wed, May 6 - Wed, May 13
Southwest Logo
9:00 am - 7:00 pm
BWI
-
SJO
12h 00m
1 stop
Southwest Logo
9:00 am - 7:00 pm
SJO
-
BWI
8h 00m
1 stop
$319Southwest
Mon, May 4 - Wed, May 13
United Airlines Logo
6:00 am - 12:21 pm
DCA
-
SJO
8h 21m
1 stop
United Airlines Logo
7:55 am - 11:58 pm
SJO
-
DCA
14h 03m
1 stop
$320United Airlines
Sat, May 9 - Sat, May 16
Copa Airlines Logo
4:40 pm - 7:09 am
BWI
-
SJO
16h 29m
1 stop
Copa Airlines Logo
4:10 am - 3:24 pm
SJO
-
BWI
9h 14m
1 stop
$321Copa Airlines
Tue, Sep 8 - Tue, Sep 15
American Airlines Logo
5:38 pm - 11:05 am
BWI
-
SJO
19h 27m
2 stops
American Airlines Logo
1:05 pm - 12:36 pm
SJO
-
BWI
21h 31m
2 stops
$323American Airlines
Thu, May 14 - Mon, May 18
American Airlines Logo
5:05 am - 7:07 pm
BWI
-
SJO
16h 02m
2 stops
American Airlines Logo
2:31 pm - 10:05 am
SJO
-
BWI
17h 34m
2 stops
$325American Airlines
Booking Insights

KAYAK's insights & trends for Washington, D.C. to San José flights

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

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

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

What is the cheapest Washington, D.C. to San José flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The absolute cheapest return flight from Washington, D.C. to San José costs $377 on the route between Washington, D.C. Dulles Intl Airport (IAD) and San José (SJO). However, over the past month, flights between Baltimore (BWI) and San José (SJO) were, on average, 26% cheaper than other Washington, D.C.-San José routes. The most popular route is between Washington, D.C. Dulles Intl Airport (IAD) and San José (SJO).

What’s the cheapest day of the week to fly from Washington, D.C. to San José?

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

If you are looking for a flight deal from Washington, D.C. to San José, look for departures on Tuesdays and avoid leaving on a Saturday, as it's usually the priciest day. When flying back from San José, Friday is the cheapest day to fly and Sunday is the most expensive.

What is the cheapest month to fly from Washington, D.C. to San José?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Washington, D.C. to San José, 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 Washington, D.C. to San José is October, where tickets cost $276 (return) on average. On the other hand, the most expensive months are December and March, where the average cost of round-trip tickets is $566 and $457 respectively.

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

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 $384, prices are generally cheapest when you fly direct.

How far in advance should I book a flight from Washington, D.C. to San José?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Washington, D.C. to San José, 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 Washington, D.C. to San José, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 3 weeks before departure.

Expert advice

Expert advice for your flight from Washington, D.C. to San José

 
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 seasonSeptember
Cheapest flight$94
Best time to beat the crowds with an average 23% drop in price.
Most popular time to fly with an average 53% increase in price.
Flight from Baltimore to San José

When to book flights from Washington, D.C. to San José

Are your dates flexible? Find out the best times to travel from Washington, D.C. to San José 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 flights from Washington, D.C. to San José

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

    In the last 3 days, the lowest price for a flight from Washington, D.C. to San José was $94 for a one-way ticket and $288 for a round-trip.

  • Do I need a passport to fly between Washington, D.C. and San José?

    Yes

  • Which airports will I be using when flying from Washington, D.C. to San José?

    Washington, D.C. is served by 2 major airports and there is only 1 main airport in San José. You will leave Washington, D.C. from one of these airports: Washington, D.C. Reagan-National or Washington, D.C. Dulles Intl. You will be arriving at San José Juan Santamaria Intl.

  • Which airlines offer Wi-Fi service onboard planes from Washington, D.C. to San José?

    Delta, and JetBlue offer inflight Wi-Fi service on the Washington, D.C. to San José flight route.

  • Which aircraft models fly most regularly from Washington, D.C. to San José?

    The Boeing 737 MAX 8 is the aircraft model that flies most regularly on the Washington, D.C. to San José flight route.

  • Which airline alliances offer flights from Washington, D.C. to San José?

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

  • On which days can I fly direct from Washington, D.C. to San José?

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

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

    The two airlines most popular with KAYAK users for flights from Washington, D.C. to San José are Southwest and Delta. With an average price for the route of $643 and an overall rating of 8.0, Southwest is the most popular choice. Delta is also a great choice for the route, with an average price of $459 and an overall rating of 7.9.

  • How does KAYAK find such low prices on flights from Washington, D.C. to San José?

    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 Washington, D.C. to San José.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Washington, D.C. to San José?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to San José from Washington, D.C. 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 Washington, D.C. to San José?

    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 San José with an airline and back to Washington, D.C. with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Washington, D.C. to San José?

    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 San José from Washington, D.C. 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 Washington, D.C. to San José

  • Looking for a cheap flight? 25% of our users found flights on this route for $149 or less one-way and $575 or less round-trip.

Prefer to fly direct from Washington, D.C. to San José?

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

Direct departures

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

Saturday

United Airlines

United Airlines

Sunday

United Airlines

United Airlines

See more direct flights

Direct returns

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

Saturday

United Airlines

United Airlines

Sunday

United Airlines

United Airlines

See more direct flights

Reviews of the top 5 airlines serving from Washington, D.C. to San José

 
See real verified KAYAK customer reviews for airlines flying from Washington, D.C. to San José. 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 Washington, D.C. to San José? 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
SouthwestOverall score based on 4334 reviews
8.1Boarding
8.0Comfort
8.6Crew
7.5Entertainment
7.0Food
Airline reviews

Southwest continues to do less for more money. Flight attendants used to be fun and friendly. But now it’s like they don’t even see you. Such a shame.

6.0 GoodDavid, Mar 2026
RSW - BWI
Read more Southwest reviews

Southwest continues to do less for more money. Flight attendants used to be fun and friendly. But now it’s like they don’t even see you. Such a shame.

Great flight. Good snacks and drinks. Grateful it was free. The flight from Nashville to louisville, i think her name was Tracy (not sure that's right) super awesome, nice and cheerful. She really enjoyed being at work today! She was the person who scanned the boarding pass on flight wn941. She should be recommended for a raise !

I liked it better when you were truer to your roots Am paying more for less fun

Southwest was greaat! The most expensive but the least upsetting for those we were flying to see.

I flew twice this week on Southwest, was delayed over 2 hours both ways. From Pittsburgh to Chicago it was due to weather but the gate agents, pilot etc were great at updating everyone. Today from Midway to Pittsburgh the plane had come from an international location, kept getting delayed, no information was given until we were delayed for the third time. It was ridiculous, whoever scheduled that plane to fly to Pittsburgh after didn’t consider a lot of things.

Boarding was easy. The seats are small and fairly uncomfortable

I was supposed to be on a later flight. When I showed up at the gate, the woman working there was extremely helpful getting moved up to this earlier flight.

We had a 5 hour delay on the tarmac in Baltimore

Long layover between flights to Long Island from BWI - need better coordination between flights

I elected to pay for the upgrades and found very little difference

Do not book it’s a scam! They stole $1200 from me

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.

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

Simply as follows:- First, there was no vegetarian option for the meal Second, only 2 washrooms for the entire economy class.

I liked the meatloaf the chicken was awful but the plane was on time and got there and the staff was nice.

Boarding was quick & efficient; they gave boarding groups due priority; staff & air crew were very cordial and helpful, pleasant flight.

As always, Copa Airlines is great to fly on. The flights are always on time, the staff are pleasant and helpful and it's always a wonderful flying experience.

The flighr attandants were very rude they ignored me didnt offer me anything to drink throughoit the 4 hour flight i feel i was targeted and ignored because i was a darkskin latino man.

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

Good quick flight on a small but comfortable plane. I'm 6'3 and had plenty of space.

The flight was delayed so we were dead tired, and after that the turbulence was horrible. I was very scared.

Wonderful. Quick boarding. Early departure and we arrived 30 minutes early at our destination. Unfortunately, when you arrive early, there is still a departing aircraft at our gate. We had to park for 30 minutes until the gate was clear. So our early arrival was not really early at the gate. Otherwise it was a quick and smooth flight. Appreciated the efficiency.

Wifi took a while to kick in and we had a maintenance issue that took over 40 mins at the gate in Washington before pulling back

Very good. Because of the delays with my previous flight, I missed my connection, but I was able to book another flight through the United app easily.

Was happy we finally got upgraded in 1st class. The seat getting old. The cushiness need some improvement.

Ineffective communication with United resulted in lost baggage. Their Baggage Tracing counter at MUC was shut down from 11:00-14:15 on my arrival. Undertrained, underinformed staff had me Running all over MUC to find someone to help me to no avail. Staff was rude, unhelpful, and unable to effectively use the systems they did have operational. They refused to contact United in any way or provide any accommodation or other resources while I waited for my luggage. This has destroyed my downstream itinerary. If they had even the slightest visibility I may have been able to reschedule/plan, but again, their staff provided nothing, and did nothing more than their website, which doesn’t even work on a standard phone browser. Miserable failure at all levels that weren’t associated with the operation of the aircraft.

Sat next to a one year old. She crawled all over the place and made me laugh.

The Crew and the food was the worst I ever had in Business Class. First they told us there were no space for carry on. It was plenty of space over our 2 row seats, we had to ask to let us travel with it which was accepted. They were aware that we had to run for the connection due to the previous flight delay. Have us one hour waiting for more customers and not even offer a glass of water. Then started the service and they started to serve other passengers drinks in business and did not offer any drinks until they serve our pre ordered meal and I ask for something to drink. I had to wait until they finished to serve all passengers until Inget something. The crew was the worts I ever had for Business Class in my life.

Not great experience - we were super late boarding due to issues with aircraft. Then when we finally all got onboard and seated and they started taxiing out to the runway they just stopped then turned around and went back to the airport. Apparently the crew “ran out of time” to legally fly us. They mentioned that they were about 2 minutes away from taking off. I understand the rules and safety but kinda wonder why they would have bothered boarding us in the first place? Had to go all the way back and de plane and then wait in a HUGE line to get a hotel (this is somewhere around 2:30am) finally got to hotel by Uber (no shuttle after 20min so gave up) and they ended up putting us all back on the same aircraft at 10am next morning so got about 2.5 hours sleep. They did give us. $250 credit, but it was a São Paulo Brazil flight out of Dulles. The flight and everything was fine.

The flight changed gates multiple times and flight had to be delayed multiple times

We called Kayak for a change due to the TSA situation in Atlanta. What we got was a canceled return flight (in error) and we had to find the mistake. Not happy with Kayak who blamed it on AA.

Delays with no explanation. It could have been handled better.

Flight delay for mechanical. Inbound arrived on time. No one said why mechanical delay.

Flight boarded, departed and landed on time. Excellent service from flight attendant in FIRST

This was one of the most frustrating travel experiences I've had to date. I had changed my flight day of to this one as it was slated to depart on time. It ended up being so delayed that my original flight took off before this one did. The boarding process began but eventually stopped and everyone had to get off the plane as a problem was identified. The person at the front desk just tried to laugh it off as if this wasn't already a huge inconvenience. From there, we eventually got to board only to sit at the gate for an additional hour because of some additional issue. This was extremely frustrating and caused a lot of stress.

It was a little concerning to hear the ground crew arguing with the flight crew over baggage space. Instead of taking them and checking them, they started checking for space in the first class cabin moving items around like the flight crew didn't know what they were doing. I was embarrassed for them.

delayed due to weather. Could not communicate with family since the wifi was broken

I got sick nothing contagious but distressing and the care I received by Kayla? Keighly the flight attendant will be memorable for ever. Thank You

We were told the flight was delayed 5 times, then it was moved to the next day.

Seating was tight. Seats don't recline. Initial flight was cancelled. Lost two days of vacation.

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

I actually upgraded to the medium level of seats from basic and even doing that it may have been physically the most uncomfortable flight I have ever had. They packed everyone like is a train to death camp. It was a red eye so I hoped to get some sleep but it was physically impossible to find a comfortable way to rest. I met other folks on the same flight and they said the same thing. It was an utterly miserable flight and if I have any other options I will never fly with them again

Deplaning was a mess, I sat in business (seats are horrible) and the front door had a problem so we had to deplane from the rear exit. The stairs were not tall enough to reach so there was a large step down from the plane to the top of the stairs.

Staff are the rudest in the industry … awful customer service … will never fly Avianca again

Pros: we leave and arrive on time Cons: the most uncomfortable seats ever. You cant recline at all your seats. No entertainment No TVs flight attendants didn't provide even a glass of water. You have to go to back of the airplane and ask for one. I am Colombian and I remember seeing the flight attendants very neat, elegants which is or was a staple of Avianca.it was one with tennis shoes, no male up, the hair was messy... that was really odd.

Here we have another airline flying to Guatemala but doesn't have a plus or a less, just in the middle. Why? Well, first we don't have even free water Movie selection is poor Seats don't recline in some places Food selection is carb based Forgot to mention, customer service on the web is the worst. Good things; Very reliable on schedule Kind crew

Last seat of Bussines Class it does recline but passenger seating behind kept pushing since they did not have space once my seat was reclined

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

No free snacks nor drinks on very short 30min flight. Entertainment system is over wifi to your own phone or tablet, which is good but often a show or movie just stops and refuses to continue

Everything you need to know for your flight from Washington, D.C. to San José

Information on your arrival and departure airports