SJO - SEA

$226 Find Cheap Flights from San José to Seattle - Compare and Save

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 10/6. 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

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Everything you should know

Cheapest round-trip
$559
Typical prices: $472-$592
Alaska Airlines, GOL
Sat 9/12Sun 9/20
SJO - SEA • 1 stop
Cheapest one-way
$226
Typical prices: $254-$292
American Airlines
Tue 10/6
SJO - SEA • 1 stop
Top airlines
Cheapest • from $565 (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 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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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, Sep 12 - Sun, Sep 20
Multiple Airlines Logo
6:00 am - 9:54 pm
SJO
-
SEA
16h 54m
1 stop
Multiple Airlines Logo
5:34 pm - 1:57 pm
SEA
-
SJO
19h 23m
1 stop
$559Multiple Airlines
Sat, Oct 24 - Sun, Nov 1
Multiple Airlines Logo
5:45 am - 7:53 pm
SJO
-
SEA
15h 08m
1 stop
Multiple Airlines Logo
8:00 am - 11:15 pm
SEA
-
SJO
13h 15m
1 stop
$560Multiple Airlines
Thu, Aug 6 - Wed, Sep 30
Multiple Airlines Logo
5:45 am - 7:11 pm
SJO
-
SEA
14h 26m
2 stops
Multiple Airlines Logo
9:57 am - 11:15 pm
SEA
-
SJO
12h 18m
2 stops
$561Multiple Airlines
Sun, Aug 16 - Thu, Aug 20
Multiple Airlines Logo
4:35 pm - 10:16 am
SJO
-
SEA
18h 41m
1 stop
Multiple Airlines Logo
9:35 am - 11:15 pm
SEA
-
SJO
12h 40m
1 stop
$562Multiple Airlines
Sat, Jul 25 - Fri, Sep 11
United Airlines Logo
6:00 am - 7:38 pm
SJO
-
SEA
14h 38m
1 stop
United Airlines Logo
10:55 am - 7:15 am
SEA
-
SJO
19h 20m
1 stop
$565United Airlines
Sun, Aug 16 - Thu, Aug 20
Multiple Airlines Logo
3:10 pm - 9:51 pm
SJO
-
SEA
31h 41m
2 stops
Multiple Airlines Logo
9:35 am - 11:15 pm
SEA
-
SJO
12h 40m
1 stop
$566Multiple Airlines
Thu, Sep 3 - Fri, Sep 4
Multiple Airlines Logo
5:45 am - 6:26 pm
SJO
-
SEA
13h 41m
2 stops
Multiple Airlines Logo
6:49 am - 11:40 pm
SEA
-
SJO
15h 51m
2 stops
$567Multiple Airlines
Tue, Sep 1 - Tue, Sep 8
Multiple Airlines Logo
5:45 am - 7:39 pm
SJO
-
SEA
14h 54m
2 stops
Multiple Airlines Logo
2:56 pm - 11:45 am
SEA
-
SJO
19h 49m
3 stops
$568Multiple Airlines
Mon, Sep 21 - Fri, Sep 25
United Airlines Logo
7:55 am - 9:51 pm
SJO
-
SEA
14h 56m
2 stops
United Airlines Logo
3:18 pm - 12:21 pm
SEA
-
SJO
20h 03m
2 stops
$570United Airlines
Wed, Aug 5 - Wed, Sep 30
Multiple Airlines Logo
5:45 am - 7:03 pm
SJO
-
SEA
14h 18m
2 stops
Multiple Airlines Logo
1:30 pm - 8:30 am
SEA
-
SJO
18h 00m
2 stops
$574Multiple 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 September.

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 $463 (return) on average. On the other hand, the most expensive months are June and July, where the average cost of round-trip tickets is $700 and $656 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 1 week before departure. For the absolute cheapest price, our data suggests you should book 9 weeks before departure.

Good to know

Low seasonFebruary
Cheapest flight$226
Best time to beat the crowds with an average 6% drop in price.
Most popular time to fly and prices are also 5% 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 5 days, the lowest price for a flight from San José to Seattle was $226 for a one-way ticket and $559 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?

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

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

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

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

    The two airlines most popular with KAYAK users for flights from San José to Seattle are Alaska Airlines and Southwest. With an average price for the route of $655 and an overall rating of 7.9, Alaska Airlines is the most popular choice. Southwest is also a great choice for the route, with an average price of $569 and an overall rating of 7.9.

  • 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 4 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 12636 reviews
8.5Crew
7.0Entertainment
8.1Boarding
7.8Comfort
7.1Food
Airline reviews

Flight attendants were kind. Until the plane arrived and had a slow taxi. I was on the tail end of the plane and informed the attendants I had a connecting flight. They didn't do anything to help me get off in a more timely manner. Nor did they contact my connecting flight to let them know I was on my way. By the time it was our rows turn my connecting flight across the terminal D gate to C gate was already boarding. I had to run the whole way through the terminal and hope I caught a train inntime. They were calling my name last call by the time arrived at the gate. Then my connecting flight ticket would not work and a new ticket had to be issued requiring presenting my ID again

6.0 GoodJaime, Jul 2026
KOA - SEA
Read more Alaska Airlines reviews

Flight attendants were kind. Until the plane arrived and had a slow taxi. I was on the tail end of the plane and informed the attendants I had a connecting flight. They didn't do anything to help me get off in a more timely manner. Nor did they contact my connecting flight to let them know I was on my way. By the time it was our rows turn my connecting flight across the terminal D gate to C gate was already boarding. I had to run the whole way through the terminal and hope I caught a train inntime. They were calling my name last call by the time arrived at the gate. Then my connecting flight ticket would not work and a new ticket had to be issued requiring presenting my ID again

Left one of our suitcases behind. SUPER ANNOYING since I’m traveling solo with a lap infant 😡

All was well from boarding to landing . I would travel on Alaska Airline when I can . The flight attendants were cordial and attentive

My experience with Alaska Airlines was great! Crew are always friendly and attentive. Alaska Airlines goes out of their way to make guest feel appreciated.

The seat on row 11 was a little hard cause my butt was hurting a little bit from sitting after and hour.

My issue is not with Alaska for but with the travel agency. The fact that i can't change my flight online, means that using you as a travel agency is a net negative. I only do it because I am forced to, but I am not happy about it.

The flight was late, almost missed my connecting flight. There was no communication from the crew and when I asked the flight attendant I received no assistance. Terrible flight!!!!

The aisles were very narrow for passing and too long to get to the restrooms. You asked to check carryons at boarding, but the bag was not at the luggage carousels on arrival and no information given as to where to pick them up.

They changed our flight to Kalispel and we ended up getting there close to midnight. The return flight got changed as well by a few hours. Then of course some issues with the plane and we were even later. First time flying Alaska, may be my last.

The crew was excellent. We brought our own snacks due to dietary requirements and personal preference. There was an ample beverage selection. The seating was comfortable enough. My only complaint was that there was no announcement, or at least none that we could hear, that our connecting flight was departing from a different terminal. That could been announced by the air crew in flight or before disembarking.

I am very please with the service received from Southwest. Although there was a refuel stop in Fl before we got the Baltimore. The service and kindness of the staff was excellent.

Paid for premium extra leg room but the bin space for rows 1-3 had to go in rows 4-6 and 4-6 had to go to 7-9 because flight attendants have snacks and their luggage upfront. So we pay extra to have to fight thru traffic to get our bags. Only 2nd day of new seating so hope they fix this.

Was good. I miss the free 2 checked bags. That was part of what made Southwest special

Delayed flight. Nicest crew member was a SW pilot flying seated next to me who kindly move to seat the final passenger. Flight extra delayed. My cup of refreshment of ginger ale was so packed with ice it was literally 2 sips.

Southwest is Southwest. No frills. If you're luck enough to get a happy crew (we did), then it makes for a nicer flight.

I would have liked to arrive on time - not 5 hours late!

Board Milian spokesman with pre boarding , not after A group and without my spouse. Total BS, back to Alaska Airlibes I GO. oner 1.2M miles and 900 flights, and every time I fly SWA I regret it, thos will be last time, I only flew SWA but to time requirements fir a Funeral. NEVER AGAIN SWA

Good crew, funny movies, but you need phone ports in the plane and better snacks. :)

Had a long layover in rainy Chicago. The staff were attentive - my husband needed a wheelchair due to a recent fall and unsteady on his feet. They are wonderful for those of us who need a bit of extra care. My only complaint was discovered upon unpacking our suitcases at home. One (we had 3 carry on size and one just a bit larger) had water damage to everything inside. All the clothing (just happened to be the case with the clean clothes) were wet. I know it was raining, but why would items inside be wet? The paperwork packed in this case was damp with ink running. There were momentos from our 10-day European vacation that I was hoping to scrapbook - but alas, they will be scrapped - too damaged to keep. The boxes of French chocolate were damp on the outside. My expensive camera now has a cracked screen and a Gaudi tea-for-one was cracked - even though it was packed in clothing. I know it happened on this flight as I repacked all four suitcases before leaving New York in the morning. My first unhappy experience with luggage at Southwest.

The a/c wasn’t working very well and it was a very hot flight

The flight was delayed by a hour and I wish they had communicated it sooner. No issues on the plane, it did take a while for food to come.

Smooth and easy boarding, comfortable for the entire 5 hour flight, and the seat back entertainment was great! I appreciated all the features, from location info and maps, movies, the ability to connect with Bluetooth headphones, and good selection of movies. Food was good, normal airline snacks (I didn’t purchase anything)

it was so bad. I tried to board my flight from vancouver to saskatoon. And to my surprise they did not board me cause the flight was changed and no email was send to me. and on my boarding pass which i got from seattle says different flight. I did not knew anyone from Vancouver, air canada crew was rude, i asked for today flight but they were rude and i had early morning dental appointment in saskatoon. I was so much in pain and my whole day is wasted today. and i suffered alot. They did provide me hotel but they did not provide me any food. I am really really disappointed first time had so bad experience with air canada. I may think twice to book it again. If i can get any reply or any composition that would be great. Thanks

leg space better than expected. two washrooms for one plane isn't enough.

The seats on this flight were almost roomy enough to be the basic amount needed for human existence. I think my favorite part of this flight was it landed at an A gate, which was the most palatial part of Sea-Tac I've ever seen - a massive improvement from the S gates.

Everything was fantastic. Modern plane. All the amenities! Although the paid snacks and meals are pure robbery. Like i understand airlines need to make money, but 11$ USD for an overnight oats with some nuts in it and barely any pieces of apple.... Highway robbery

An hour and a half late is UNACCEPTABLE. The negative impact to our family is unconscionable. And for the price we were forced to pay...

Our flight was delayed many times throughout the day. The final delay was about 8 hours. I spent time in line to speak to someone at their understaffed desk, and also spent time waiting online and then chatting with a service rep. None of the United employees were any help at all. I desperately wanted to go get rest and possibly re-book my trip but I was denied any compensation or voucher for a hotel. I was repeatedly told it was not United's fault and therefore they had no compensation to offer. Overall, a cold and callous experience.

Flight crew and pilots did great. Flight way delayed due to a part needing replacement. Based on what the pilot indicated- the maintenance crew could’ve resolved this more efficiently than replacing whole part- and taken less time

The most cramped seating I’ve ever experienced, (including budget airlines) with no food available for purchase on a nearly 6 hour flight.

Plane was super cold. No entertainment unless you were with mileage program Getting off the plane was super slow

Beverage service was not good. Also just one service in 5 hr 30 min flight. No ask fir water ir anything beside one time beverage service.

Flight was delayed because of a bird strike. They had another plane available within 45 minutes.

It was a code share with Alaska - would have been great if I actually made it on the plane, claimed I didn’t have a ticket or a seat even thought I was checked in.

The main problem was delay. The plane was at the gate early and bags were loaded. However, there was no crew for the flight. They were inbound from LGA and had to land and make their way to our gate. It took more than 40 minutes. Then, once the crew arrived and boarded, one of the crew members had to deplane and then a replacement crew member had to be found. It took another 40 minutes or so to get the final crew member. In all, we took off about 2 hours later than our scheduled departure time. Once in the air, the flight was great. Smooth most of the way. The crew was professional and efficient.

i suspect i caught flu on this flight as i could hear someone coughing a few rows back and ended up with flu a few days later. also tiresome to have to watch movies on my device by holding up smartphone screen, would have liked to have in seat display.

I had trouble finding a boarding pass because I had an hour between Flights and American did not see my flight I believe because I was ticketed through KAYAK. I did not have enough time to go to the desk before boarding so I went to the desk and told them while I was boarding and they had a boarding pass for me within three minutes. Nice. I paid extra to have more legroom and it is definitely worth it for a six hour flight. I would’ve paid for a decent dinner, but they didn’t offer anything but a snack box —not good for six hours.

Terrible flight seats where really uncomfortable I had body aches for 2 days and flight was delays almost two hours

Very smooth for one of the busiest travel days of the year and the crew was great.

Customer service prior to boarding is horrible Communication regarding boarding gates is released at the last minute and the gates are very distant from Customs. Very disappointing

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

Information on your arrival and departure airports