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SEA - SJO

Find cheap flights from Seattle to San José from $156

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 5/29. 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
0 bags
Fri 6/7
Fri 6/14

Search 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.
In the last 7 days travelers have searched 43,968,530 times on KAYAK, and here is why:

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Cheap flight deals 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 and deals for you by selecting your travel dates.
Choose your dates
9:40 pm - 8:46 amSEA-SJO
34h 06m2 stops
9:36 am - 8:45 amSJO-SEA
24h 09m2 stops
$329Spirit Airlines
Find Deal
Tue, May 28 - Mon, Jun 3
9:40 pm - 8:46 amSEA-SJO
34h 06m2 stops
9:36 am - 8:45 amSJO-SEA
24h 09m2 stops
$331Spirit Airlines
Find Deal
Wed, May 29 - Mon, Jun 3
9:28 am - 11:37 amSEA-SJO
25h 09m3 stops
12:59 am - 8:32 amSJO-SEA
32h 33m3 stops
$337Spirit Airlines
Find Deal
Wed, Jun 5 - Tue, Jun 11
1:30 pm - 6:30 amSEA-SJO
16h 00m1 stop
8:30 am - 10:11 pmSJO-SEA
14h 41m1 stop
$402Delta
Find Deal
Tue, Oct 15 - Wed, Oct 23
5:05 pm - 11:53 amSEA-SJO
17h 48m1 stop
1:13 pm - 11:56 pmSJO-SEA
11h 43m1 stop
$422Delta
Find Deal
Sun, Sep 1 - Mon, Sep 16
5:15 pm - 1:21 pmSEA-SJO
19h 06m1 stop
7:05 am - 8:43 pmSJO-SEA
14h 38m2 stops
$425American Airlines
Find Deal
Wed, Sep 18 - Wed, Sep 25
8:20 am - 1:21 pmSEA-SJO
28h 01m2 stops
1:56 pm - 9:11 pmSJO-SEA
32h 15m2 stops
$443American Airlines
Find Deal
Mon, Sep 9 - Thu, Sep 12
11:59 pm - 12:26 pmSEA-SJO
11h 27m1 stop
1:30 pm - 10:53 pmSJO-SEA
10h 23m1 stop
$462United Airlines
Find Deal
Wed, Sep 4 - Thu, Sep 19
4:43 pm - 12:26 pmSEA-SJO
18h 43m2 stops
1:30 pm - 7:57 amSJO-SEA
19h 27m2 stops
$467United Airlines
Find Deal
Sun, Sep 1 - Thu, Sep 19
5:45 am - 8:00 pmSEA-SJO
13h 15m1 stop
7:20 am - 10:54 amSJO-SEA
28h 34m1 stop
$613Alaska Airlines
Find Deal
Sun, Aug 18 - Sun, Aug 25

Flights from Seattle to San José - Travel Insights & Trends

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.

What’s the cheapest day of the week to fly from Seattle to San José?

The average price of all flights from Seattle to San José, San José Province clicked on KAYAK for each day over the last 12 months.
For Seattle to San José, Tuesday is the cheapest day to fly on average and Friday is the most expensive. Flying from San José back to Seattle, the best deals are generally found on Friday, with Saturday being the most expensive.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Seattle to San José, San José Province, 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, San José Province is September, where tickets cost $557 on average. On the other hand, the most expensive months are December and July, where the average cost of tickets is $974 and $885 respectively.

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

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from Seattle to San José, San José Province, removes the top 0.1% to account for outliers, and then takes the average of all the values for each month.
To get a below average price on the flight from Seattle to San José, San José Province, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 36 days before departure.

Which airlines provide the cheapest flights from Seattle to San José?

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
The best deals for a one-way ticket found by KAYAK users over the last 3 days were on Spirit Airlines ($156) and Avianca ($186). The cheapest round-trip tickets were found on Spirit Airlines ($329) and Delta ($402).

Good to know

Low season

September

High season

December

Cheapest flight

$156
Best time to beat the crowds with an average 22% drop in price.
Most popular time to fly with an average 37% 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

  • Which airline has suitable pet policies for Seattle to San José flights?

    Spirit Airlines ensures a favorable pet policy for flights from Seattle-Tacoma International Airport (SEA) to San Jose International Airport (SJO). One pet per person is permitted in the cabin by Spirit Airlines. The pet and carrier weight should not exceed 20 lb. Acceptable pets include small dogs, household birds cats, and domestic rabbits.

  • Which layover options are available for passengers flying from Seattle to San José?

    Passengers will have several layover options for this route. United Airlines, Avianca, has a layover at San Francisco International Airport (SFO) and El Salvador International Airport (SAL). United Airlines has its layover at George Bush Intercontinental Airport (IAH), and American Airlines at Dallas Fort Worth International Airport (DFW).

  • What public transport options are from San José International Airport to downtown San José?

    San José International Airport (SJC) offers a variety of transportation options for getting into the city. The most convenient choice, VTA Airport Flyer, offers a bus service outside the terminal building. It operates straightforward service to the central area of San Jose, a journey that lasts around 20 minutes. One can find additional shuttle vans and taxis near baggage claim.

  • Can I get rental cars from San José International Airport?

    Yes, hiring a vehicle at San Jose's international airport is feasible. The rental car companies positioned at the airport comprise Avis, Budget, Dollar, Enterprise, Fox, Hertz, National, and Thrifty. All rental car businesses are situated on the ground floor of the terminal, except Fox, which is on the upper floor. The vehicle rentals vary, including economy to high-end cars, sport utility vehicles, and minivans.

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

    In the last 3 days, the lowest price for a flight from Seattle to San José, San José Province was $156 for a one-way ticket and $329 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?

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

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

    Los Angeles 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, Alaska Airlines or Delta?

    The two airlines most popular with KAYAK users for flights from Seattle to San José are Alaska Airlines and Delta. With an average price for the route of $684 and an overall rating of 8.0, Alaska Airlines is the most popular choice. Delta is also a great choice for the route, with an average price of $617 and an overall rating of 8.0.

  • 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.

See more FAQs

Top tips for finding a cheap flight from SEA to San José

  • Seattle-Tacoma International Airport (SEA) is located at Washington's SeaTac City, approximately 12 miles south of Seattle's central area. It is a major hub for Alaska Airlines, American Airlines, Delta Air Lines, and United Airlines. Flights departing from Seattle bound for San José can utilize Terminal A, which Alaska Airlines, American Airlines, and United Airlines utilize, or Terminal C, which Delta Air Lines operates.
  • Alaska Airlines is a suitable family-friendly airline for travel from Seattle to San José. These consist of onboard entertainment, free pillows and blankets, additional snacks, specially prepared dishes, and price cuts for kids.
  • Most airlines, including Spirit Airlines, provide special needs assistance to passengers, including escort assistance, in boarding and deplaning. Wheelchair assistance is also available free of charge.
  • When traveling from Seattle to San José, a business class ticket offers many advantages that can make the journey more enjoyable. The main advantages of a business class ticket on Copa Airlines include access to more generous seating and legroom, tailored service and courtesy from the flight attendants, courtesy meals and beverages, and more luggage allowances.
  • Spirit Airlines flights departing from Seattle-Tacoma International Airport (SEA) to San Jose International Airport have favorable carry-on policies. Passengers can carry one individual item like a purse. They can as well carry one average carry-on bag for their flight with no additional fee. The weight of the bags should be at most 40 lb.
See more tips

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
Alaska AirlinesOverall score based on 9141 reviews
8.6Crew
8.2Boarding
7.3Food
7.3Entertainment
7.9Comfort
Airline reviews

The flight was decent again if there was a place that you could put crying children that would be great. Or maybe make a rule against allowing infants on the plane.

6.0 GoodAnonymous, May 2024SEA - HNL
Read more about Alaska Airlines reviews

The flight was decent again if there was a place that you could put crying children that would be great. Or maybe make a rule against allowing infants on the plane.

Everything was fine -- on time, clear, clean. I don't want to pay extra for in-flight wi-fi

The flight was delayed because the pilots had not arrived on their previous flight yet. The flight was 100% full so it was pretty crowded. I miss having the screens on the back of the seats. It would be great if the Alaska planes had the clip so you can put your phone or tablet on the back of the seat in front of you to not strain your neck. Everything else was very smooth.

It was fine since it ensure we went to our destination in time.

I bought the cheapest ticket. No meal, no checked luggage so I didn't expect much and was surprised by how good the flight and service was. Alaska is now my favorite airline.

No entertainment, food was cookies & juice,water, soda or coffee.

My baggage was in another flight, anit was delayed for one hour.

The maintenance delay was seemingly handled very poorly... Little to no information was provided to the passengers sitting on board for an extended period of time. On a brighter note, at least the cabin crew (flight attendants) did the best they could. They seemingly were provided very little information with regards to the delay. Unless absolutely beyond my control, I can’t imagine buying a ticket on Alaska airlines again, based on this and a previous experience my wife recently had, along with complaints overheard from other passengers.

The only issue was in the wheelchair waiting area before we got on the plane. They seemed very disorganized. Everyone we encountered after that was great! We loved Cassandra at check-in. She was awesome. The flight attendants were wonderful too! The lady helping with the waiting wheelchair when we got off the plane was awesome too!

Expect to get miles for us having to miss our first planned flight due to them waiting on passengers that decided to be late to the airport.

Had a broken tray in business class. Crew just shrugged it off.

Everything was great except for the seat. The backrest would not stay in the upright position.

public website still broken for years randomly blocking browsers with privacy options active after loading a page maybe once. check-in on laptop was almost impossible but eventually randomly worked. had to print pass at airport since couldn't get back in to load digital pass on mobile firefox or chrome. red eye flight so smooth onboarding, plenty of room to spread out, easy offboarding. onboard wifi instructions mention vpn can cause problems connecting but fails to also mention private dns. no printed or built in menu list, seems weird to require personal device to point at qr code link for menu which does not even allow direct ordering. people with health condition risk related dietary restrictions trying to avoid for example cholesterol and sugar are left guessing what they can order either way without nutritional info highlights (cranberry juice was minute maid cocktail with as much suger as typical can of soda). tap to pay wasn't working and always seems sketchy to manually enter card info. good movie variety, so limited tv was okay.

Bag drop off was slow and annoying. Only 2 agents at the entire delta desk, and no one directing traffic for what line to be in, many confused people slowed down the process. Boarding was fine. Seats in Delta comfort plus were fine. Snacks were great! Definitely a bonus. The entertainment system was awful — old, slow, not responsive, and completely unable to play games due to some kind of error. But on the other hand, thank you to Delta for the free WiFi. That made it better.

Flight diverted in SD. Later take off in Seattle by 1.3hrs

Mi primera conexión se retrasó por lo cual perdí mi segunda conexión la cual salió adelantada

Crew was not friendly when I went to request a seat change.

There were choices for the snacks. Good choices and tasty lunch and breakfast as well.

The flight crew was amazing. I’m very tall and they moved me to an exit row unsolicited!!! Amazing service.

The boarding process was terrible especially with an indirect flight Chicago to Seattle to San Diego was terrible talking about we overbooked a flight idk if I’d take this airline ever again we got off our flight from Chicago to Seattle and we traveled for business and they told us our connecting flight was over booked and their was no seats asking people to take a delayed next flight and they don’t tell anyone coughing to wear masks seats 30A-B were terrible during the flight no one wants to sit next to people coughing all around I don’t want to be sick traveling for work or get sick anytime it’s very upsetting the staff doesn’t take this stuff serious to tell them to wear masks when they see people coughing and sneezing

The plane was so outdated, that it made it uncomfortable. The temperature was hot during the whole flight

Some entertainment and food/snack service would have been nice

All the pessengers should be wait in a line útil the creo and piloto are arrived.

Planes seat could be bigger very uncomfortable for tall humans.

1 hour waiting for suitcases to come out traveling in business class and food in business class is a sandwich? Avoid Aeromexico .

No space reserved for anyone who didn’t have underseat in front of them. Made it inconvenient to get the backs secured. No inflight entertainment in the 190. Bring your own! Food was excellent and we were surprised to get a full breakfast.

Cons: "left Houston more than 2 hours later, arrive in Mexico over 2 am"
Cons: "El problema es que nunca pude cambiar mi vuelo y con ustedes fue imposible comunicarse para que me auxiliaran. Muy mal por ustedes no por la línea."
Pros: "The crew was amazing , the site is ok"
Cons: "I love Aeroméxico , thanks for de service and the food."
Pros: "Plenty a space between seats. Ver confortable seats and small entertainment screens!"
Cons: "Better selection of movie?"

Flight was delayed 2.5 hours - a big deal on an overnight when you plan to sleep.

I feel like they have upgraded the app since I last flew United and I found it to be super helpful. I had stopped flying United unless absolutely necessary and my experience on this trip indicates they have been working hard to improve their services.

Surprisingly easy! I was hesitant to try this, but the cost swayed me. I actually felt like I had less stress than all the taxiing and possible delays that occur with short regional flights where you spend less time in the air than getting to and from the plane..

This flight was delayed multiple times and eventually canceled around 2-3ish. Original take off time was around 10:30am. By 3, there were no other options out of Houston, so stuck in Houston for from 3pm - 11am the next day.

Should have video screens Plane audio was poor and without wired connection hard to understand crew. Should serve more than just cups of water and pretzels on six hour flight. Did not see crew rest of flight. Fix charging sockets to retain charging blocks.

I paid $380 for my one-way ticket from California to Minnesota. The fair did not include online check-in. I received instructions from their app to check in at a kiosk. At the kiosk, the boarding pass would not print until an actual person came to verify that I had a personal item and not a carry-on item, On the plane, the person next to me was drunk and allowed to continue to order alcohol. United is garbage I’d rather fly spirit.

The plane was dirty and the in seat air wasn't blowing as planes usually do.

Generally good but there wasn’t any staff available when my luggage didn’t appear at baggage claim in Fresno. It took about half an hour to locate a staff member to open up the locked room where it was being kept.

Do not like the feeling of being in the basic economy. Everyone should feel good no matter what.

All flights were on time and boarding was issue free

Even though we left CMI late, we mostly made up the time.

Delayed almost 4 hours for a 45 minute flight with no explanation.

Again, multiple delays and I eventually just canceled and drove!

Great crew. Very comfortable business seats with nice bedding. Good food. We were delayed to let late passengers on the flight, but otherwise great experience.

Great crew. We were delayed so that late passengers could get on the flight. Love the bedding in business class. Good food. Great experience.

The CX617 from HK to BKK was delayed more than 1.5 hours.

Horrible - they lied to me about baggage & boarding, even though I specifically spoke to their agents the day before my flight about my issue. When I showed up they did not let me board and stranded me at my airport until I bought a new flight with money I did not have to spend.

I was in business class. There was an excellent headset. But half an hour before arrival they collected them! The rest of the trip I had to use a cheap earphone. There must be a better way to protect the headphones.

All four American Airlines flights I took in last seven days were delayed. Caused me loads of problems, missed meetings, loss of time and money.

American cancelled our flight home. Zero option for hotel, alternative transportation and took 3 hours to find our bags so we could take a 3 hour UBER ride home on our dime. Never flying AA again.

Book cheap flights from Seattle to San José

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Seattle to San José found on KAYAK in the last 72 hours.
5/29Wed
2 stopsSpirit Airlines
34h 06mSEA-SJO
$156
5/28Tue
2 stopsSpirit Airlines
22h 11mSEA-SJO
$159
5/31Fri
2 stopsSpirit Airlines
34h 06mSEA-SJO
$161
5/28Tue
2 stopsSpirit Airlines
22h 11mSEA-SJO
$164
9/1Sun
1 stopDelta
17h 48mSEA-SJO
$214
5/29Wed
1 stopAmerican Airlines
12h 47mSEA-SJO
$218
5/28Tue
1 stopAmerican Airlines
19h 59mSEA-SJO
$219
8/13Tue
1 stopUnited Airlines
16h 03mSEA-SJO
$241
8/15Thu
1 stopUnited Airlines
18h 26mSEA-SJO
$244
6/10Mon
1 stopAeromexico
25h 24mSEA-SJO
$485

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Last minute flights from Seattle to San José

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights from Seattle to San José that are departing in the next 10 days.
5/9Thu
multi-stopCopa Airlines
14h 26mSEA-SJO
5/12Sun
multi-stopCopa Airlines
32h 50mSJO-SEA
$529
5/11Sat
multi-stopSpirit Airlines
16h 57mSEA-SJO
5/20Mon
multi-stopSpirit Airlines
48h 09mSJO-SEA
$581
5/11Sat
multi-stopAmerican Airlines
12h 47mSEA-SJO
5/20Mon
multi-stopAmerican Airlines
18h 25mSJO-SEA
$655
5/10Fri
multi-stopAmerican Airlines
10h 56mSEA-SJO
5/20Mon
multi-stopAmerican Airlines
18h 25mSJO-SEA
$656
5/11Sat
multi-stopUnited Airlines
18h 38mSEA-SJO
5/14Tue
multi-stopUnited Airlines
10h 22mSJO-SEA
$716
5/11Sat
multi-stopUnited Airlines
11h 59mSEA-SJO
5/14Tue
multi-stopUnited Airlines
27h 01mSJO-SEA
$721
5/9Thu
multi-stop
20h 07mSEA-SJO
5/11Sat
multi-stop
20h 30mSJO-SEA
$897
5/9Thu
multi-stop
21h 41mSEA-SJO
5/11Sat
multi-stop
20h 30mSJO-SEA
$907
5/12Sun
multi-stopAlaska Airlines
20h 07mSEA-SJO
5/18Sat
multi-stopAlaska Airlines
33h 24mSJO-SEA
$987
5/12Sun
multi-stopAlaska Airlines
21h 41mSEA-SJO
5/18Sat
multi-stopAlaska Airlines
33h 24mSJO-SEA
$993

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Seattle - San José Flights

Departure:

Seattle (undefined)United States

Destination:

San José (SJO)Costa Rica

Return flight deals:

San José - Seattle

Cabin classes: