SEA - SJO

$186 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 5/12. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to 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: $686-$522
Multiple Airlines
Tue 5/12Tue 5/19
SEA - SJO • 2 stops
Cheapest one-way
$186
Typical prices: $208-$265
Multiple Airlines
Tue 5/12
SEA - SJO • 1 stop
Top airlines
Cheapest • from $513 (round-trip)
Best reviews • 8.0 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Seattle and San José. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg $545 (round-trip)
Shortest trip • 9h 05m (one-way)
Insights
Insights
Insights
Insights
When to travel
Cheapest • 22% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to 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

Tue, May 12 - Tue, May 19
Multiple Airlines Logo
7:40 am - 11:15 pm
SEA
-
SJO
14h 35m
2 stops
Multiple Airlines Logo
5:45 am - 6:56 pm
SJO
-
SEA
14h 11m
2 stops
$457Multiple Airlines
Tue, Aug 25 - Tue, Sep 1
Multiple Airlines Logo
9:32 am - 11:15 pm
SEA
-
SJO
12h 43m
2 stops
Multiple Airlines Logo
12:40 pm - 10:57 am
SJO
-
SEA
23h 17m
3 stops
$463Multiple Airlines
Tue, May 12 - Tue, Jun 2
Multiple Airlines Logo
7:06 pm - 8:45 am
SEA
-
SJO
12h 39m
2 stops
Multiple Airlines Logo
5:45 am - 9:07 pm
SJO
-
SEA
16h 22m
1 stop
$466Multiple Airlines
Sat, May 16 - Sat, May 23
Multiple Airlines Logo
7:00 am - 11:15 pm
SEA
-
SJO
15h 15m
2 stops
Multiple Airlines Logo
5:45 am - 9:07 pm
SJO
-
SEA
16h 22m
2 stops
$467Multiple Airlines
Sat, May 9 - Tue, May 12
Multiple Airlines Logo
9:00 am - 11:15 pm
SEA
-
SJO
13h 15m
2 stops
Multiple Airlines Logo
5:45 am - 6:40 pm
SJO
-
SEA
13h 55m
2 stops
$469Multiple Airlines
Tue, May 12 - Tue, May 19
Multiple Airlines Logo
7:40 am - 11:15 pm
SEA
-
SJO
14h 35m
2 stops
Multiple Airlines Logo
7:45 am - 9:49 pm
SJO
-
SEA
15h 04m
1 stop
$471Multiple Airlines
Wed, May 6 - Wed, May 20
Multiple Airlines Logo
9:06 pm - 11:15 pm
SEA
-
SJO
25h 09m
2 stops
Multiple Airlines Logo
4:35 pm - 11:39 pm
SJO
-
SEA
32h 04m
2 stops
$472Multiple Airlines
Tue, Apr 28 - Tue, May 12
Multiple Airlines Logo
7:40 am - 11:15 pm
SEA
-
SJO
14h 35m
2 stops
Multiple Airlines Logo
5:45 am - 6:40 pm
SJO
-
SEA
13h 55m
2 stops
$473Multiple Airlines
Sun, Sep 6 - Fri, Sep 11
Multiple Airlines Logo
7:07 pm - 11:30 am
SEA
-
SJO
15h 23m
2 stops
Multiple Airlines Logo
12:40 pm - 10:57 am
SJO
-
SEA
23h 17m
3 stops
$477Multiple Airlines
Sun, Sep 6 - Fri, Sep 11
Multiple Airlines Logo
6:01 pm - 11:45 am
SEA
-
SJO
16h 44m
3 stops
Multiple Airlines Logo
12:40 pm - 11:55 am
SJO
-
SEA
24h 15m
3 stops
$478Multiple 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 May.

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 April and March, where the average cost of round-trip tickets is $782 and $763 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 12 weeks before departure.

Good to know

Low seasonSeptember
Cheapest flight$186
Best time to beat the crowds with an average 20% drop in price.
Most popular time to fly with an average 16% 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 $186 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?

    Houston 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 $703 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 $580 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 4340 reviews
7.5Entertainment
8.0Comfort
8.6Crew
8.1Boarding
7.0Food
Airline reviews

The Air hostess were very rude on my flight from Houston to Austin . Their regular communication itself felt a they are shouting at people.

4.0 Okaysangeetha, Apr 2026
AUS - SJC
Read more Southwest reviews

The Air hostess were very rude on my flight from Houston to Austin . Their regular communication itself felt a they are shouting at people.

Communication about the delayed flight was poor. We were told to move gates three times but that was bad information. We went from gate 128 to gate 126 and then to gate 123 and back to gate 126. Communication about the delay was bad. Ended up being 1 1/2 hour late getting home.

Plane was late. Zero service for 2+ hour flight and it was not that bumpy.

It was good from LAX to Phoenix, But the connection in Phoenix to Tulsa was not that great. The staff on both flights were great. The choice of free entertainment was ok nothing to brag about. The 45 min delay because of some electrical issue wasn't great from Phoenix to Tulsa. We sat there with hardly any air, The seat I had was between windows so the side of the plane pushed in on you. My being a bigger man it then made the seating area uncomfortable. The seats on the plane had no power to connect to recharge your phone or anything. I would recommend that they should look into a slot or clamp to hold your phone to enjoy while watching the entertainment choices hands-free. Also make it possible to raise the inner seat by the window be able to raise the arm rest up to make more room for larger people to set more comfortably. I would also say other then that stop price gouging the airfare or nickel and diming everything. Not fair for people having to fly for emergencies and be paying for higher prices due to the season or holidays. Your making your money either way and the cost of flying is still going to be the same regardless if there's 100 people or 200 people.

Had a great flight. Delayed takeoff, but comfortable. Snacks were good.

Love them will get a Southwest card to track my points and keep flying with them. My family and I were pleased with the services.

I have roller bag with food and medication told me I couldn't bring on my 2nd flight today. 15 years flying with SW never an issue with that bag.

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

Alaska Airlines staff go out of their way to accommodate my fragile musical instrument, every time. They are unlike any other airline. I've experienced this can-do attitude on several flights with different staff, so this must be the culture of their company. I appreciate Alaska!

We never had an experience on Alaska Airlines. We missed our flight .

Flight was on time departure & arrival. Staff was efficient & attentive. Food was better than normal. Wish they had some sort of entertainment screens loke Delta. I would fly Alaska again though.

It was a bumpy flight but the crew was very attentive and made it a safe and enjoyable experience.

Very easy, stress free airline. Was a wonderful experience. Will use again

The final trip home wasn’t as bad as the trip there. Even with the paid upgrade the comfort level was mediocre at best.

I paid $129 to be upgraded to better seat only ti be completely ignored by flight attendants I think because I used the front restroom ???? I was dozing off and on but I was never once offered a beverage or snack but my seat mates were served numerous double vodkas. I want my money back. I tried to call Alaska Airlines complaints phone number and was told it was 2.5 hours to hold.

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.

We departed and landed early which was a nice surprise. The boarding process was slow.

N Everything was perfect from boarding to assistance to baggage in Tampa

Subpar. The seating on the plane is almost unbearable. We are literally touching and/or sitting on each other which is totally unacceptable and shameful. Pilots and crew was very accommodating and friendly.

The boarding was organized and informative but the plane was tight meaning that you were sitting on one another and extremely uncomfortable. It’s disappointing that can’t have common seating comfort on the plane.

Loved the crew! Sucks that we went from 1 hour and 8 minute layover to a 3 hour layover. But weather sucks like that.

I was told that they needed to check my bag at the gate and to pick it up at the gate in Richmond. No big deal. I know they can't control the weather, but we flew around RIC for 45 minutes to avoid the storm and were 25 minutes late leaving as well. Once we landed, we were told to go to baggage claim to pick up our luggage. I went to bathroom, paid for parking, and went to the assigned baggage claim location. United flight people came down with us as well. They got their luggage immediately. Next, South West people came down about 10 minutes later. They got their luggage next. We finally got our luggage around 30 minutes in waiting. Was not a wonderful experience. No reflection on Delta, but the ground crew was lousy at best.

Everything could have benn better. Short fly, no food, no entertainment and no wifi.

Flight delayed. Air broken. Cabin was hot enough to pass out. Delta shuttle’s becoming worse and worse.

my mom urmila patel needed a wheelchair which was not available on the curbside. she needed to walk almost 50 meters inside (at the risk of falling) and then had to wait in line to get a wheelchair (this is not ok). Once obtained she had to seat in it for 30-45 minutes for someone to take her in thru the checkin process (which was fairly smooth and easy). the lady who helped her with her checkin process was very courteous and helpful

On the return flight, flight attendant Britt went out of her way to inform passengers that several of us had tight connections.

Flight left on time, arrived early, pleasant staff provided water, coffee, etc. access to bathrooms was reasonable and were well maintained. blankets were available, lots of entertainment options. LUGGAGE SERVICE WAS GREAT. I got my one checked bag quickly and was able to make a bus connection for a 2 hour bus ride saving me from waiting another 1.5 hours.

The boarding process was straightforward. One pertinent observation regarding all boarding procedures is that if an individual requires assistance or possesses a special status and is part of preboarding, it is advisable to limit the number of passengers who can preboard with them, rather than the entire, sometimes large, companion groups. The seats are uncomfortable, and the entertainment options are significantly inferior compared to other airlines. During the snack service, I requested an additional bag of snacks, but my request was denied. Initially, the flight attendant agreed to my request.becoming a strange accurate moment. The flight duration was four hours.

The flight was officially delayed 3 times, and was actually later than that. Combined, it was a 3 hour delay, but there was no recognition (miles, voucher, etc). The crew seemed stressed. The captain sounded nervous in his announcements. The flight itself was smooth and uneventful.

United didn’t even try to hold the flight for me. They knew I had a tight connection and when I arrived at the gate less than 10 mins after final boarding the flight had already gone. The gate agent wasn’t even notified that I was on my way. She was told I wasn’t at the airport

Great until we got to FRA. The next trip leg we were put in Business Class where seats had minimal padding!!!! They were awful and United Airlines needs to have their Lufthansa partner up their game or I won’t fly with them again!!

I had a good time. However, I paid for the wifi and it was in and out the whole flight.

one staffer was frustrated (it happen); the flight was late and the pilot mentioned they'll make amend but the snacks were the same, other than that the aircraft was clean and everything went smooth, no complaints

The wheelchair service is useless. They live you in different spots, not tell you anything just wait. I waited 30 minutes in Frankfurt when decided to walk the 25 minutes distance. In Budapest nobody came.

It was perfect! I've never flown with United before, but I definitely will in the future

I had a cancelled flight because of technical issues going to my destination, and a delayed flight coming home. All told it wasn’t a total bust.

there are no options s for snack besides cookies would ve nice to have a salty option n

We did not have enough time to make our connecting flight. As a result, we were put onto a different airline for our second leg. The different airline was NOT comparable to British Airlines, and our arrival was significantly delayed. The actual flight on BA was amazing.

We left at 1030 am pacific from LA and supposed to land at 7 pm Eastern in NY. They made a detour, stopped in Philadelphia and didn’t land till 1130 PM Eastern!!! Worst flight experience with no pilot communication with no explanation as to what was going on. Everyone was very frustrated to say the least.

Going non stop to lax like I paid for. Not stopping in MCI for gas. Too long of delays

Human interaction. Thought there would be more service-even a smile would have been nice.

It was canceled at the last minute. While I was literally at the airport. Messed my entire trip up.

Seat was VERY uncomfortable. Flight was delayed and then boarded slowly. The crew was super helpful with boarding and supporting maximizing the luggage in the overhead.

Crew at the gate was very crabby and not at all polite. The plane was very hot the entire flight. And the seat cushion was very worn out.

Incoming flight was delayed, delaying boarding. It then took 30 mins to take off. Took 20 mins to get to a gate because they changed the gate last minute, crew weren’t ready so there was no one staffed to work the jet bridge. Boarding was so disorganized as is usual with American because everyone just stands around the gate regardless of boarding group.

I cancelled my ticket less than 24 hours deadline but I didn’t get refunded.

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

Information on your arrival and departure airports