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SEA - SJO

Find cheap flights from Seattle to San José from C$ 265

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 30/9. 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
Sat 8/6
Sat 15/6

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 43,968,530 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
3:55 p.m. - 11:53 a.m.SEA-SJO
18h 58m1 stop
1:13 p.m. - 11:56 p.m.SJO-SEA
11h 43m1 stop
C$ 552Delta
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Wed, 18 Sep - Wed, 25 Sep
8:15 p.m. - 6:30 a.m.SEA-SJO
9h 15m1 stop
1:13 p.m. - 11:56 p.m.SJO-SEA
11h 43m1 stop
C$ 580Delta
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Tue, 10 Sep - Sat, 21 Sep
5:00 p.m. - 1:35 p.m.SEA-SJO
19h 35m2 stops
6:10 a.m. - 4:08 p.m.SJO-SEA
34h 58m2 stops
C$ 599
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Tue, 17 Sep - Fri, 27 Sep
6:45 a.m. - 12:26 p.m.SEA-SJO
28h 41m2 stops
1:30 p.m. - 10:47 p.m.SJO-SEA
10h 17m1 stop
C$ 635United Airlines
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Wed, 16 Oct - Wed, 23 Oct
6:45 a.m. - 12:26 p.m.SEA-SJO
28h 41m2 stops
1:30 p.m. - 10:06 a.m.SJO-SEA
21h 36m2 stops
C$ 642United Airlines
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Wed, 16 Oct - Wed, 23 Oct
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$ 702
Find Deal
Fri, 16 Aug - Wed, 21 Aug
7:45 p.m. - 8:00 p.m.SEA-SJO
23h 15m2 stops
12:50 a.m. - 8:34 p.m.SJO-SEA
20h 44m1 stop
C$ 878Alaska Airlines
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Mon, 5 Aug - Mon, 12 Aug
7:12 p.m. - 8:00 p.m.SEA-SJO
23h 48m1 stop
12:50 a.m. - 10:50 a.m.SJO-SEA
11h 00m1 stop
C$ 883Alaska Airlines
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Mon, 5 Aug - Mon, 12 Aug
9:35 a.m. - 11:59 p.m.SEA-SJO
13h 24m1 stop
1:21 p.m. - 8:00 p.m.SJO-SEA
31h 39m1 stop
C$ 1,000Aeromexico
Find Deal
Fri, 31 May - Fri, 7 Jun
10:00 p.m. - 12:09 p.m.SEA-SJO
13h 09m1 stop
1:12 a.m. - 8:00 p.m.SJO-SEA
19h 48m1 stop
C$ 1,402Aeromexico
Find Deal
Mon, 24 Jun - Thu, 18 Jul

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$ 765 on average. On the other hand, the most expensive months are December and July, where the average cost of tickets is C$ 1,338 and C$ 1,216 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.
In the last 72 hours, the best return deals on flights connecting Seattle to San José were found on Delta (C$ 552) and United Airlines (C$ 635). Delta proposed the cheapest one-way flight at C$ 294.

Good to know

Low season

September

High season

December

Cheapest flight

C$ 265
Best time to beat the crowds (22% less expensive on average)
Most popular time to fly (37% more expensive 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$ 193 for a one-way ticket and C$ 402 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$ 908 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$ 957 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 9141 reviews
7.3Food
7.9Comfort
8.2Boarding
8.6Crew
7.3Entertainment
Airline reviews

Flight cancelled an hour before takeoff due to "unscheduled maintenance". New flight makes me have to wait for 5 hours in the airport, at a gate totally on the other side of where I'm at, requiring me to take a tram to get from the N terminal, to the C terminal. After waiting for 5 hours I'm informed my new flight is no longer at the gate I'm at, but instead is back in the N terminal where I was previously.

2.0 MediocreAnonymous, May 2024SEA - LAX
Read more about Alaska Airlines reviews

Flight cancelled an hour before takeoff due to "unscheduled maintenance". New flight makes me have to wait for 5 hours in the airport, at a gate totally on the other side of where I'm at, requiring me to take a tram to get from the N terminal, to the C terminal. After waiting for 5 hours I'm informed my new flight is no longer at the gate I'm at, but instead is back in the N terminal where I was previously.

Delayed an hour and sat without updates. Ended up an hour late to destination

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 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?"

Check in etc was very good. As for on the plane, it was like flying in a freezer. It was so cold, i have flown for years and never been so cold on a plane. Staff on board said its always cold when flying which is a load of rubbish. They wouldnt put any heating on and now i have the flu because of this .

I’ve had a couple flights this week on United that were delayed by an hour or more

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.

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.
30/9Mon
2 stops
37h 20mSEA-SJO
C$ 265
1/9Sun
1 stopDelta
17h 48mSEA-SJO
C$ 294
14/7Sun
2 stops
37h 05mSEA-SJO
C$ 422
28/5Tue
3 stopsUnited Airlines
12h 41mSEA-SJO
C$ 947
17/5Fri
3 stopsTurkish Airlines
50h 24mSEA-SJO
C$ 2,929
1/9Sun
3 stopsTurkish Airlines
50h 24mSEA-SJO
C$ 4,225

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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.
12/5Sun
multi-stopUnited Airlines
28h 01mSEA-SJO
19/5Sun
multi-stopUnited Airlines
32h 43mSJO-SEA
C$ 1,004
12/5Sun
multi-stopUnited Airlines
28h 01mSEA-SJO
19/5Sun
multi-stopUnited Airlines
32h 43mSJO-SEA
C$ 1,018
12/5Sun
multi-stopUnited Airlines
28h 01mSEA-SJO
19/5Sun
multi-stopUnited Airlines
18h 03mSJO-SEA
C$ 1,032
12/5Sun
multi-stopUnited Airlines
28h 01mSEA-SJO
19/5Sun
multi-stopUnited Airlines
32h 57mSJO-SEA
C$ 1,077
11/5Sat
multi-stopAlaska Airlines
12h 26mSEA-SJO
19/5Sun
multi-stopAlaska Airlines
11h 24mSJO-SEA
C$ 1,307
12/5Sun
multi-stopAlaska Airlines
20h 07mSEA-SJO
18/5Sat
multi-stopAlaska Airlines
33h 24mSJO-SEA
C$ 1,349
12/5Sun
multi-stopAlaska Airlines
21h 41mSEA-SJO
18/5Sat
multi-stopAlaska Airlines
33h 24mSJO-SEA
C$ 1,364
11/5Sat
multi-stopAlaska Airlines
12h 26mSEA-SJO
19/5Sun
multi-stopAlaska Airlines
22h 21mSJO-SEA
C$ 1,384
13/5Mon
multi-stopAlaska Airlines
11h 56mSEA-SJO
24/5Fri
multi-stopAlaska Airlines
18h 43mSJO-SEA
C$ 1,402
11/5Sat
multi-stopAlaska Airlines
11h 56mSEA-SJO
19/5Sun
multi-stopAlaska Airlines
12h 49mSJO-SEA
C$ 1,467

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Seattle - San José Flights

Departure:

Seattle (undefined)United States

Destination:

San José (SJO)Costa Rica

Cabin classes:

Browse origins:

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  • Seattle

Browse destinations:

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  • San José