SEA - SJO

$174 Find Cheap Flights from Seattle 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 Seattle to San José departing on 4/17. 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 Seattle to San José.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Seattle to San José.
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Everything you should know

Cheapest round-trip
$457
Typical prices: $493-$670
Multiple Airlines
Wed 8/5Sat 8/15
SEA - SJO • 2 stops
Cheapest one-way
$174
Typical prices: $229-$344
Multiple Airlines
Fri 4/17
SEA - SJO • 3 stops
Nonstop flights
Not available
There are currently no direct flights between Seattle and San José. You'll need at least 1 connection.
Insights
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Top layover airports
Cheapest • Avg $545 (round-trip)
Shortest trip • 9h 05m (one-way)
Insights
Insights
Insights
Insights
When to travel
Cheapest • 20% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to San José!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Seattle to San José (SEA-SJO)

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

Wed, Aug 5 - Sat, Aug 15
Multiple Airlines Logo
9:15 pm - 11:15 pm
SEA
-
SJO
25h 00m
2 stops
Multiple Airlines Logo
5:45 am - 10:01 pm
SJO
-
SEA
17h 16m
2 stops
$457Multiple Airlines
Fri, May 1 - Tue, May 5
Multiple Airlines Logo
7:06 pm - 8:45 am
SEA
-
SJO
12h 39m
2 stops
Multiple Airlines Logo
5:45 am - 6:40 pm
SJO
-
SEA
13h 55m
2 stops
$459Multiple Airlines
Fri, May 1 - Wed, May 6
Multiple Airlines Logo
7:06 pm - 8:45 am
SEA
-
SJO
12h 39m
2 stops
Multiple Airlines Logo
5:05 am - 5:38 pm
SJO
-
SEA
13h 33m
2 stops
$460Multiple Airlines
Fri, May 1 - Wed, May 6
Multiple Airlines Logo
2:20 pm - 8:30 am
SEA
-
SJO
17h 10m
2 stops
Multiple Airlines Logo
5:05 am - 5:38 pm
SJO
-
SEA
13h 33m
2 stops
$462Multiple Airlines
Tue, May 5 - Thu, May 28
Multiple Airlines Logo
5:06 pm - 11:45 am
SEA
-
SJO
17h 39m
3 stops
Multiple Airlines Logo
5:45 am - 10:44 pm
SJO
-
SEA
17h 59m
2 stops
$463Multiple Airlines
Mon, Aug 10 - Thu, Aug 20
Multiple Airlines Logo
9:15 pm - 11:15 pm
SEA
-
SJO
25h 00m
2 stops
Multiple Airlines Logo
5:45 am - 5:57 pm
SJO
-
SEA
13h 12m
2 stops
$465Multiple Airlines
Fri, May 1 - Wed, May 6
Multiple Airlines Logo
7:06 pm - 8:45 am
SEA
-
SJO
12h 39m
2 stops
Multiple Airlines Logo
7:45 am - 9:47 pm
SJO
-
SEA
15h 02m
1 stop
$466Multiple Airlines
Wed, Apr 8 - Sat, Apr 25
Multiple Airlines Logo
10:44 am - 8:30 am
SEA
-
SJO
20h 46m
2 stops
Multiple Airlines Logo
9:40 am - 9:26 pm
SJO
-
SEA
12h 46m
2 stops
$467Multiple Airlines
Fri, Apr 24 - Wed, Apr 29
Multiple Airlines Logo
9:06 pm - 11:15 pm
SEA
-
SJO
25h 09m
2 stops
Multiple Airlines Logo
4:35 pm - 2:44 pm
SJO
-
SEA
23h 09m
2 stops
$468Multiple Airlines
Fri, May 1 - Fri, May 8
Multiple Airlines Logo
9:06 pm - 11:15 pm
SEA
-
SJO
25h 09m
2 stops
Multiple Airlines Logo
4:35 pm - 7:47 pm
SJO
-
SEA
28h 12m
2 stops
$469Multiple Airlines
Booking Insights

KAYAK's insights & trends for Seattle to San José flights

Get data-powered insights and trends into flights from Seattle 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 Seattle 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 Seattle to San José departing in August.

What is the cheapest month to fly from Seattle to San José?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Seattle 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 Seattle to San José is October, where tickets cost $489 (return) on average. On the other hand, the most expensive months are December and April, where the average cost of round-trip tickets is $733 and $723 respectively.

How far in advance should I book a flight from Seattle 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 Seattle 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 Seattle to San José, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 24 weeks before departure.

Good to know

Low seasonSeptember
Cheapest flight$174
Best time to beat the crowds with an average 20% drop in price.
Most popular time to fly with an average 18% increase in price.
Flight from Seattle to San José

When to book flights from Seattle to San José

Are your dates flexible? Find out the best times to travel from Seattle 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 Seattle to San José

  • What is the cheapest flight from Seattle to San José?

    In the last 3 days, the lowest price for a flight from Seattle to San José was $174 for a one-way ticket and $457 for a round-trip.

  • Do I need a passport to fly between Seattle and San José?

    Yes

  • Which airports will I be using when flying from Seattle to San José?

    On your way to San José, you’ll fly out from Seattle/Tacoma Intl. You’ll be landing at San José Juan Santamaria Intl.

  • Which aircraft models fly most regularly from Seattle to San José?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Seattle to San José?

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

  • What is the most popular layover when flying to San José from Seattle?

    Dallas is the most popular layover city among KAYAK users traveling from Seattle to San José.

  • Which is the best airline for flights from Seattle to San José, Southwest or Alaska Airlines?

    The two airlines most popular with KAYAK users for flights from Seattle to San José are Southwest and Alaska Airlines. With an average price for the route of $723 and an overall rating of 8.0, Southwest is the most popular choice. Alaska Airlines is also a great choice for the route, with an average price of $578 and an overall rating of 7.9.

  • How does KAYAK find such low prices on flights from Seattle 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 Seattle to San José.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to San José from Seattle 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 Seattle 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 Seattle with another airline. Booking your flights between Seattle and SJO 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 Seattle 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 Seattle up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 5 airlines serving from Seattle to San José

 
See real verified KAYAK customer reviews for airlines flying from Seattle 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 Seattle 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 4324 reviews
8.0Comfort
7.5Entertainment
8.1Boarding
7.0Food
8.6Crew
Airline reviews

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

10.0 ExcellentMartie, Mar 2026
LGB - BNA
Read more Southwest reviews

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

The new seating arrangement is so over priced for what you get.

The problem with the seat assignments is that there were a lot of rows in the front that were empty but my row at the back was full. Just not so pleasant.

No food or entertainment, just a quick 40 minute flight. A little bumpy due to Santa Ana winds but pilot has no control over that. Good flight and landing!

Don’t fly with Alaska if you have a layover in Seattle. Guaranteed to screw you over. We waited at terminal S3 &were >2 hours delayed(mechanical issues)and told to change terminals to a different plane that required riding 3 shuttles to get to new terminal N14. Then they delayed the flight even further and changed gates again. when I went to the customer service in terminal N, the manager turned me away without apologizing & refused to assist me but mandated I leave her alone as her shift is nearly finished and insisted I totake another 2 shuttles to terminal C so I can just talk to another service rep while dragging my family of 4/ kids in tow.

i canceled my flight from SEA to SFO, SNA to SEA and received full refund from Alaska Airlines. i am pleased with the customer service.

Departing flight for our weekend trip was cancelled due to weather which meant our return flight was useless. The whole thing was difficult to get support through but Alaska did recover and was able to reimburse us for the flights yesterday. For some reason, Kayak was not kept in the loop, adding to the confusion.

i canceled my return flight package with Alaska Airlines. Customer Service was excellent and assisted me to cancelled both of our reservations and returned the payment in full. that is excellent service and understanding and empathy of the customers' needs. i like Alaska Airlines and recommend AS to everyone.

Never got on because the airline sent the WRONG plane to take us on our first leg of the trip so we missed ALL connecting flights. No help available from anyone at the airline…

The crew inside the airport for Alaska was rude, lazy and incompetent

The flight was extremely smooth, and so was the landing. Great piloting.

Plane was clean, staff was professional and flight was on time. No built in tv was still ok, as programs were offered that could synch to smart phones.

J was in the ER x 3...3 protruding discs...contacted Alaska many many days prior to cancel and request a refund or a credjt.. they only gave me 50 % credit....outrageous seeing how i have a doctors letter....just plain inhuman. AI sucks!

The flight was too short. No snacks or drinks offered.

Entertainment is ok! Boarding and seat with zone is terrible. I paid for the seats but you didn’t give me what I paid for which is exit isles.

the crew cancel the morning service due to the weather. Then the flight got deverted to Nashville . we were on the ground for over two hours the only gave us water once... no food or any snacks.... the crew should have handled better and offered something to passengers.

My recent experience was excellent on Delta! I flew with Delta Comfort and I was really comfortable in my seat. I enjoyed the in-flight service. The flight attendants were so friendly and hospitable. I love the snack on the flight as well. This was my first time flying on Delta and I will definitely consider flying with them again.

My flight was cencaled due with the bad weather on Sunday the crew was poorly mistaken my luggage supposed depart with my flight instead I didn’t have my luggage for almost 3 days the website is poorly respond to my complain until I have someone to do it my connection smooth their not even respon or email me even the have my luggage

Delta needs to step its game up get a more reliable internet service. Internet service was non-existent for this flight.

Mechanical Delay of over an hour with multiple gate changes. Entertainment system down for rejuvenation.

This was a Latam operated flight. Seats seemed a bit narrow in business class. Older aircraft.

I had a flight cancel and had it rerouted. When the rerouted they put me at a window seat instead of an isle. It was hard sitting by the window because the couple with masks on were making out. I get motion sickness which is why I need to have the isle seat.

NEVER MADE THE FLIGHT BECAUSE DELTA SAID THEY CAN NOT

THEY FAILED ME AND I NEVER GOT ON THE FLIGHT BECAUSE IT WAS SO DELAYED! I ENDED UP HAVING TO PAY OUT OF POCKET FOR A HOTEL AND STAY IN NASHVILLE TO CATCH A FLIGHT FOR THE FOLLOWING DAY. DELTA IS POOR CUSTOMER SERVICE>

ticket agent lady wás very helpful , she arranged wheel chair for my elderly mother

Didn't make the flight because the first leg of my flight was canceled and the next leg was already booked.

My flight was canceled a few hours before boarding. I was rebooked on Copa airlines and missed an important meeting .

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

Experience was great - no complaints. Took off on time, landed early. Got to the gate relatively quickly - took a little bit of extra time to deplane but nothing excessive.

Business class seats felt very cramped compared to other airlines.

Economy plus was so cramped I could not use my laptop. It was beyond bad.

OK, we were delayed and had to de plane and reboard.

United is one airline which regardless of how many separate United tickets in existence, if one flight breaks down, the airline will take care of all the flights.

Both our flights were delayed. Almost didn’t get in the second flight. Staff was rude to the bone.

Absolutely terrible. Would never fly American again. 2 deplaned incidents and delayed by close to 24 hours. $12 meal voucher for first class passengers was an insult to the injury. Pathetic.

Terrible planning. And even worse gate agents. Absolutely rude behavior.

Half of the TSA checkpoints at PHL are closed. Also, there is no standby for first class passengers. You can only standby for coach. Very dated policy and inconsistent with peers.

Flight was scheduled at 11:26am but they keep Delaying until midnight. They waited at airport restless.

Rough flight No beverage service due to turbulence Bottom Seat cushion was non existent

Great experience. Good dinner and service. FA's were very nice and attentive.

It was great. Smooth flight, comfortable, left on time and landed on time.

Perhaps this is an airport issue, but being in a takeoff queue for over an hour in the taxiing lane is unacceptable. We will definitely be seeking alternative avenues for air travel in the future.

We hoarded. Then we deplaned. Then we waited for 10 hours in the MSP airport due to a wheel misfunction. We understand safety but communication between crew and airport staff was horrible. When we did finally board, we were rushed on and because we were waiting for a “fresh” pilot and crew, we sat in a roasting plane with no A/C for an hour. My question is why was this flight not cancelled right away when they knew this would be a huge issue OR, why did AA not get a substitute plane, considering this was already a full flight? To me, this appears to be a complete breakdown in leadership and utter systems failure. The compensation for completely disrupting travel plans for hundreds, which we paid dearly for, was measly. While we appreciated the lodging for the night, $12 in meal vouchers isn’t going to sustain anyone for over 12 hours. “We apologize; our hands are tied” is no longer an acceptable explanation. We are so completely turned off by this experience and will definitely seek alternative avenues when we need to fly.

Mostly good. The WiFi wasn’t working so that was not great.

Everything you need to know for your flight from Seattle to San José

Information on your arrival and departure airports