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SEA - SJO

Find cheap flights from Seattle to San José from C$ 274

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 16/9. 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
Sun 2/6
Sun 9/6

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, 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 Seattle to San José, as well as popular online travel agencies
In the last 7 days, travellers have searched 43,740,974 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
3:55 p.m. - 11:53 a.m.SEA-SJO
18h 58m1 stop
8:30 a.m. - 11:46 p.m.SJO-SEA
17h 16m1 stop
C$ 606Delta
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Mon, 21 Oct - Thu, 21 Nov
7:15 a.m. - 7:37 p.m.SEA-SJO
11h 22m1 stop
1:30 p.m. - 10:53 p.m.SJO-SEA
10h 23m1 stop
C$ 647United Airlines
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Wed, 18 Sep - Wed, 25 Sep
5:00 p.m. - 7:20 a.m.SEA-SJO
37h 20m2 stops
1:30 p.m. - 4:08 p.m.SJO-SEA
27h 38m2 stops
C$ 656
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Wed, 28 Aug - Tue, 3 Sep
5:00 p.m. - 7:20 a.m.SEA-SJO
37h 20m2 stops
5:10 a.m. - 4:08 p.m.SJO-SEA
35h 58m2 stops
C$ 714
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Fri, 9 Aug - Fri, 23 Aug
9:14 a.m. - 8:00 p.m.SEA-SJO
9h 46m1 stop
7:30 a.m. - 9:28 p.m.SJO-SEA
14h 58m1 stop
C$ 735Alaska Airlines
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Sat, 5 Oct - Sat, 12 Oct
5:45 a.m. - 8:00 p.m.SEA-SJO
13h 15m1 stop
12:33 a.m. - 8:57 a.m.SJO-SEA
33h 24m1 stop
C$ 837Alaska Airlines
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Fri, 17 May - Tue, 21 May
4:30 p.m. - 1:12 p.m.SEA-SJO
19h 42m2 stops
6:14 p.m. - 10:30 p.m.SJO-SEA
29h 16m2 stops
C$ 928Copa Airlines
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Sat, 20 Jul - Thu, 8 Aug
4:30 p.m. - 3:56 p.m.SEA-SJO
22h 26m2 stops
6:14 p.m. - 10:45 p.m.SJO-SEA
29h 31m2 stops
C$ 1,058Copa Airlines
Find Deal
Mon, 1 Jul - Sun, 7 Jul
9:30 a.m. - 11:59 p.m.SEA-SJO
13h 29m1 stop
1:17 a.m. - 8:00 p.m.SJO-SEA
19h 43m1 stop
C$ 1,398Aeromexico
Find Deal
Tue, 18 Jun - Sun, 23 Jun
7:20 a.m. - 4:32 a.m.SEA-SJO
20h 12m1 stop
1:07 p.m. - 8:01 p.m.SJO-SEA
31h 54m1 stop
C$ 1,973Aeromexico
Find Deal
Fri, 19 Jul - Tue, 3 Sep

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 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 C$ 821 on average. On the other hand, the most expensive months are December and July, where the average cost of tickets is C$ 1,460 and C$ 1,262 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 2 days before departure. For the absolute cheapest price, our data suggests you should book 15 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.
In the last 72 hours, the best return deals on flights connecting Seattle to San José were found on Delta (C$ 606) and United Airlines (C$ 647). Delta proposed the cheapest one-way flight at C$ 300.

Good to know

Low season

September

High season

February

Cheapest flight

C$ 274
Best time to beat the crowds (21% less expensive on average)
Most popular time to fly and prices are also 9% lower on average.
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 C$ 200 for a one-way ticket and C$ 442 for a round-trip.

  • 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 Star Alliance being the most commonly used for this route.

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

    The two airlines most popular with KAYAK users for flights from Seattle to San José are Alaska Airlines and Aeromexico. With an average price for the route of C$ 906 and an overall rating of 8.0, Alaska Airlines is the most popular choice. Aeromexico is also a great choice for the route, with an average price of C$ 954 and an overall rating of 7.6.

  • 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.

  • 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 Seattle 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 3 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 9123 reviews
7.3Entertainment
8.6Crew
7.9Comfort
8.2Boarding
7.3Food
Airline reviews

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.

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

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.

Up on arrival, due to twisted ankle, I wasn’t able to walk. Requested for a wheelchair. They immediately asked for it. After 10 minutes wait a young man named Carlos picked me up at the gate, got my baggage and took me to the pick up area. It was a great service. Thanks Alaska Air line

Once I was in my seat, it wasn't as comfortable. It was very tight (width wise).

Just a little delay in our takeoff but all was well and pleasant.

Command crew was excellent in handling dangerous flying conditions (weather).

I usually choose Alaska Airlines over any other airline. They try the hardest to make flying a great experience.

Staff being friendly would have help since the flight was delayed, again. Folks answered questions but no one seemed happy to be working today and if showed.

It was a full flight without any issues or stress. Really surprised with how so many flights seem to have issues nowadays.

You guys did great, the only thing keeping me from the higher rating is the physical dimensions of the seats, which staff has no control over. Keep up the good job.

Flight was good. Glad it was delayed or I may have missed the connection since I got to Seattle at about the same time my connection was to leave. The snack was a small bag of pretzels and a small soda. Can’t really call that food. There was no entertainment available on the 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?"
Cons: "Way too much people... We're in a pandemic and the plane was Full. Unacceptable."

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

Terrible! The plane was old and you are required to connect your own device to their Wi-Fi rather than have entertainment options in the back of the seat in front of you. The Wi-Fi went out during the flight and there was only one plug for the devices every two seats. Three out of five surrounding my family did not work. The seats and spaces under them were so small I could not fit my backpack, which I’ve always brought on flights and fit before no problem. The crew were unpleasant and patronizing.

Great! The plane was decently sized and comfortable. The staff was nice and there was great in flight entertainment

Food was terrible Not many options Stewards dont care Delay

Water service would be great. The way they board is terrible. Slow passengers first😂😂 They need to smart up a bit

Our original business class flight was cancelled so we not only downgraded but we were also spread out across the plane not sitting together in separate middle seats. My poor kids were scared and couldn’t see me on the flight and the crew wasn’t sensitive to the situation and what the airlines did to us. Very dissatisfied with United airlines.

Crew were fine, drinks and snacks were as well but we were delayed for around 2 hrs which made our entry into Mexico delayed as well with the influx of arrivals at the same time. Sort of wasted our first day of vacation. We left Pittsburgh at 630am and did not arrive in Mexico until late dinner time.

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.
16/9Mon
2 stops
37h 20mSEA-SJO
C$ 274
29/5Wed
1 stopDelta
13h 13mSEA-SJO
C$ 300
27/5Mon
1 stopDelta
13h 13mSEA-SJO
C$ 307
28/5Tue
1 stopDelta
27h 18mSEA-SJO
C$ 332
15/8Thu
2 stopsUnited Airlines
22h 31mSEA-SJO
C$ 349
25/5Sat
1 stopDelta
11h 21mSEA-SJO
C$ 362
19/5Sun
1 stopDelta
12h 03mSEA-SJO
C$ 430
28/5Tue
3 stopsUnited Airlines
12h 41mSEA-SJO
C$ 1,294
17/5Fri
3 stopsTurkish Airlines
50h 24mSEA-SJO
C$ 2,805
16/9Mon
3 stopsTurkish Airlines
50h 24mSEA-SJO
C$ 4,214

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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.
6/5Mon
multi-stopCopa Airlines
19h 25mSEA-SJO
11/5Sat
multi-stopCopa Airlines
15h 07mSJO-SEA
C$ 807
6/5Mon
multi-stopAlaska Airlines
11h 56mSEA-SJO
12/5Sun
multi-stopAlaska Airlines
18h 54mSJO-SEA
C$ 899
6/5Mon
multi-stopAlaska Airlines
10h 56mSEA-SJO
12/5Sun
multi-stopAlaska Airlines
19h 19mSJO-SEA
C$ 906
7/5Tue
multi-stopAlaska Airlines
12h 56mSEA-SJO
9/5Thu
multi-stopAlaska Airlines
17h 24mSJO-SEA
C$ 913
8/5Wed
multi-stopAlaska Airlines
9h 11mSEA-SJO
9/5Thu
multi-stopAlaska Airlines
20h 36mSJO-SEA
C$ 920
6/5Mon
multi-stopAlaska Airlines
11h 56mSEA-SJO
18/5Sat
multi-stopAlaska Airlines
33h 24mSJO-SEA
C$ 926
6/5Mon
multi-stopAlaska Airlines
23h 11mSEA-SJO
18/5Sat
multi-stopAlaska Airlines
33h 24mSJO-SEA
C$ 933
4/5Sat
multi-stopDelta
11h 11mSEA-SJO
12/5Sun
multi-stopDelta
16h 31mSJO-SEA
C$ 954
7/5Tue
multi-stopAlaska Airlines
12h 56mSEA-SJO
9/5Thu
multi-stopAlaska Airlines
18h 54mSJO-SEA
C$ 972
8/5Wed
multi-stopAeromexico
16h 44mSEA-SJO
9/5Thu
multi-stopAeromexico
15h 28mSJO-SEA
C$ 2,518

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Seattle - San José Flights

Departure:

Seattle (SEA)United States

Destination:

San José (SJO)Costa Rica

Cabin classes:

Browse origins:

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  • Seattle

Browse destinations:

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  • Worldwide » 
  • San José