SJO - SEA

$259 Find Cheap Flights from San José to Seattle

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 Seattle departing on 8/20. 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 Seattle

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from San José to Seattle, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from San José to Seattle, as well as popular online travel agencies
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest round-trip
$415
Typical prices: $499-$414
Multiple Airlines
Sat 10/3Sat 10/10
SJO - SEA • 1 stop
Cheapest one-way
$259
Typical prices: $288-$393
Multiple Airlines
Thu 8/20
SJO - SEA • 2 stops
Top airlines
Cheapest • from $467 (round-trip)
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between San José and Seattle. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg $511 (round-trip)
Shortest trip • 10h 45m (one-way)
Insights
Insights
Insights
Insights
When to book
in advance
Our data shows that travelers who book at least 2 weeks in advance save around 8% compared to booking last minute.
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
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 Seattle!
Flight Deals
Booking Insights
Flight Deals

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

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

Sat, Oct 3 - Sat, Oct 10
Multiple Airlines Logo
5:45 am - 6:48 pm
SJO
-
SEA
14h 03m
1 stop
Multiple Airlines Logo
10:05 am - 11:15 pm
SEA
-
SJO
12h 10m
1 stop
$415Multiple Airlines
Sat, Oct 3 - Sat, Oct 10
Multiple Airlines Logo
5:45 am - 6:48 pm
SJO
-
SEA
14h 03m
2 stops
Multiple Airlines Logo
6:28 am - 11:15 pm
SEA
-
SJO
15h 47m
2 stops
$421Multiple Airlines
Thu, Oct 8 - Tue, Oct 13
Multiple Airlines Logo
5:45 am - 7:53 pm
SJO
-
SEA
15h 08m
1 stop
Multiple Airlines Logo
8:15 am - 11:15 pm
SEA
-
SJO
14h 00m
1 stop
$423Multiple Airlines
Sat, Oct 10 - Sun, Oct 18
Multiple Airlines Logo
5:45 am - 7:53 pm
SJO
-
SEA
15h 08m
2 stops
Multiple Airlines Logo
10:05 am - 11:15 pm
SEA
-
SJO
12h 10m
2 stops
$424Multiple Airlines
Thu, Oct 22 - Tue, Nov 3
Multiple Airlines Logo
5:45 am - 7:53 pm
SJO
-
SEA
15h 08m
2 stops
Multiple Airlines Logo
7:00 am - 11:15 pm
SEA
-
SJO
14h 15m
2 stops
$430Multiple Airlines
Thu, Oct 22 - Wed, Oct 28
Multiple Airlines Logo
5:45 am - 6:48 pm
SJO
-
SEA
14h 03m
2 stops
Multiple Airlines Logo
11:06 am - 9:35 am
SEA
-
SJO
21h 29m
2 stops
$438Multiple Airlines
Sat, Aug 29 - Sat, Sep 5
Multiple Airlines Logo
5:45 am - 9:42 pm
SJO
-
SEA
16h 57m
2 stops
Multiple Airlines Logo
9:32 am - 11:15 pm
SEA
-
SJO
12h 43m
2 stops
$439Multiple Airlines
Sun, Nov 1 - Fri, Nov 6
Multiple Airlines Logo
5:00 am - 4:57 pm
SJO
-
SEA
13h 57m
2 stops
Multiple Airlines Logo
2:37 pm - 9:35 am
SEA
-
SJO
16h 58m
2 stops
$440Multiple Airlines
Fri, Oct 16 - Wed, Oct 21
Multiple Airlines Logo
4:35 pm - 10:35 am
SJO
-
SEA
19h 00m
2 stops
Multiple Airlines Logo
10:05 am - 11:15 pm
SEA
-
SJO
12h 10m
2 stops
$441Multiple Airlines
Sat, Oct 24 - Sun, Nov 1
Multiple Airlines Logo
5:45 am - 6:48 pm
SJO
-
SEA
14h 03m
2 stops
Multiple Airlines Logo
11:06 am - 9:35 am
SEA
-
SJO
20h 29m
2 stops
$443Multiple Airlines
Booking Insights

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

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

How much is a round-trip flight from San José to Seattle?

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

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from San José to Seattle, 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 Seattle is October, where tickets cost $448 (return) on average. On the other hand, the most expensive months are June and January, where the average cost of round-trip tickets is $651 and $620 respectively.

How far in advance should I book a flight from San José to Seattle?

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 Seattle, 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 Seattle, you should book around 2 weeks before departure, which saves you about 8% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 16 weeks before departure.

Good to know

Low seasonMarch
Cheapest flight$259
Most popular time to fly and prices are also 2% lower on average.
Flight from San José to Seattle

When to book flights from San José to Seattle

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

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

    In the last 3 days, the lowest price for a flight from San José to Seattle was $259 for a one-way ticket and $415 for a round-trip.

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

    Yes, you'll most likely have to show a valid passport before boarding the plane in San José and on arrival in Seattle.

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

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

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

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

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

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

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

    The two airlines most popular with KAYAK users for flights from San José to Seattle are Alaska Airlines and United Airlines. With an average price for the route of $634 and an overall rating of 7.9, Alaska Airlines is the most popular choice. United Airlines is also a great choice for the route, with an average price of $528 and an overall rating of 7.4.

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

    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 Seattle.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Seattle 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 Seattle?

    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 Seattle with an airline and back to San José with another airline. Booking your flights between San José and SEA 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 Seattle?

    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 Seattle from San José up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 3 airlines serving from San José to Seattle

 
See real verified KAYAK customer reviews for airlines flying from San José to Seattle. 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 Seattle? 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.
7.9
Alaska AirlinesOverall score based on 12370 reviews
7.8Comfort
8.1Boarding
7.0Food
8.5Crew
7.0Entertainment
Airline reviews

For such a long flight, Tampa to Seattle, was shocked to learn that no food was served. Also, there were no TV monitors to be able to watch a movie.

6.0 GoodJan, May 2026
TPA - SEA
Read more Alaska Airlines reviews

For such a long flight, Tampa to Seattle, was shocked to learn that no food was served. Also, there were no TV monitors to be able to watch a movie.

The staff at the check-in counter was responsive to the long queue and intervened to redirect the traffic: foreigners can't complete check-in without human agents; that is the real line which moves quickly enough. On-boarding and off-boarding were smooth and civilized. Overall the operations were efficient and the experience was pleasant.

Ok, but nothing special. Long flight with no blanket/pillow set.

Flight was delayed by 3 hrs. Forcing missed connection and overnight stay. Terrible.

Made our reservations 6 months ago. When we arrived at the airport we were informed they no longer have assigned seating. We were placed in the last row next to the restrooms. Our seats did not recline. I do not like the fact you are assigning seats. I don’t feel it’s fair. People who make last minute reservations sit in the middle seats. It’s did Southwest now have assigned seating and you assign seats. Even Southwest was more fair than Alaska.

We tried for days to use online Alaska Airline app we needed to know what Gate to depart from . When we got there we were given a paper boarding ticket with the wrong gate on it . We almost missed this flight . It caused great stress and caused a health side effect. The previous flights April 24 started hour late mechanical issues . We were not allowed to depart plane in time to get correct gate and missed our flight .

Check in went smooth, flight was on time and our checked bag was delivered in a timely fashion.

I had to cancel my trip due to medical reasons. I have been unable to cancel online through either Kayak or Alaska Airlines.. I am trying to get my insured trip reimbursed by XCover. They are requiring a notice of cancellation or not using to get my refund. Please help me get that information. I have been unable to get this information from either Kayak or Alaska Airlines.

We got window seats and there was no window to look out at very disappointed in paying for a no window seat

We took off on time and rose into the wild blue yonder safely, and landed at our destination safely eighteen minutes early. In between we enjoyed a smooth flight and wonderful service by a great crew. Flight attendants and pilots made sure the trip was a memorable and happy experience. Can’t beat that!

No complaints other than luggage carousel was incorrectly guiding passengers to the wrong carousel on the screen.

We were a little disappointed to not be able to complete check in online without uploading pics of passports. Also we have KTN's and they weren't on our boarding passes when we got to security. Had to trek back to counter to have them fix.

Excellent service in Polaris class IAD to ZRH. Arrived rested and well fed after the overnight flight.

The clerk at check in for my bags was very rude. My credit card was hacked during my vacation and she told me it was not possible to pay in cash for my bag. “You bought the cheapest ticket, you should have bought a ticket that included a bag. If you cannot pay with a credit card, we will not let you on this flight”. She spoke to her supervisor and then told me , I could ask other passengers, if they would use their credit card to check my bag. I had to beg 5 different people, till one agreed to use their credit card. I payed them cash of course. This was a very stressful and humiliating experience for me. I strongly suggest you build in some kind of provision for travelers who got robbed.

It's a short hop. My carryon was checked at the gate, I didn't have to drag it all over the airport. Excellent wheelchair assist.

It was good overall except from Omaha to Denver when flight a was a repeatedly delayed apparently due to some issue at Denver. Communications could have been handled better. I had to board then deboard with luggage and board again

Left an hour and a half after the listed time. Up side was it had TV screens on the seat.

No screens or meal options. Freezing cold. Dirty seats. Left late.

O’hsre taxi and deboarding took 40 minutes. Needed 20 minutes extra time between connecting flights to avoid running through terminal.

Seats very comfortable; service efficient and pleasant; flight was on-time; boarding organized.

Fine. Nothing to write home about. The plane left on time, and arrived on time.

I was downgraded from first class to coach due to an airplane change. They pulled me out of line and I was the very last person to board the plane stuck in the middle seat with no overhead place to put my carry-.on. Very poor customer service.

Seat comfort was poor (no lumbar or lower back support).

The airplane seats were spacious and comfortable, and the flight attendants were friendly and attentive. The food was delicious like never before. The blankets and toiletries were thoughtfully provided. The captain's navigation was steady and reliable. In short, having flown with Starlux, I won't consider any other airline next time.

STOP MAKING THE SEATING SO CRAMPED. WE NEED A PASSENGER BILL OF RIGHTS!

The passenger in front of of me reclined their seat back all the way the entire flight. Their headrest was in my face the entire flight! I barely had room for the little plastic cup of water to fit on my tray table; can you make the seats and space between the rows any smaller??? You can’t even get up to use the restroom! Worst flight I’ve had in a very long time!

We had several flights and they were all on-time and flawless

My Frequent Flyer nber wasn't put on as I was told it was..... This resulted in a last group boarding and no priority tags on My bags.

Terrible steward... Plane was quite empty... I asked to move "back" in the plane and the steward said no... Unnecessary power trip of mediocre people.

The small flights with Valet Luggage has a poor service

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

Information on your arrival and departure airports