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San José

$156+ Cheap flights from Seattle (SEA) to San José (SJO)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/15. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — SJO
Apr 8 — Apr 151
Wed 4/8
Wed 4/15
1 adult, Economy
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Cheap flight deals from Seattle to San José

Cheapest flights from Seattle to San José
Explore the most affordable flight options available from Seattle to San José. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 9, 2026.

This Expedia deal was found by Cheapflights users on 3/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/268:07 pm
SEA
-
SJO
2 stops14h 23m
Multiple Airlines
Wed 5/203:10 pm
SJO
-
SEA
2 stops18h 47m
Multiple Airlines
Deal found 3/9$442
This Avianca deal was found by Cheapflights users on 3/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Avianca is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/219:08 am
SEA
-
SJO
2 stops13h 07m
Multiple Airlines
Tue 4/287:45 am
SJO
-
SEA
1 stop15h 02m
Multiple Airlines
Deal found 3/5$444
This Expedia deal was found by Cheapflights users on 3/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/25:06 pm
SEA
-
SJO
2 stops17h 24m
Multiple Airlines
Sat 5/95:25 pm
SJO
-
SEA
2 stops47h 25m
Multiple Airlines
Deal found 3/6$452
This Alaska Airlines deal was found by Cheapflights users on 3/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/110:50 pm
SEA
-
SJO
2 stops23h 55m
Alaska Airlines
Wed 5/612:55 am
SJO
-
SEA
2 stops32h 55m
Alaska Airlines
Deal found 3/8$453
This Expedia deal was found by Cheapflights users on 3/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/228:07 pm
SEA
-
SJO
2 stops14h 23m
Multiple Airlines
Wed 4/293:10 pm
SJO
-
SEA
2 stops21h 42m
Multiple Airlines
Deal found 3/5$457
This Expedia deal was found by Cheapflights users on 3/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/77:15 am
SEA
-
SJO
2 stops15h 25m
Multiple Airlines
Fri 8/145:05 am
SJO
-
SEA
2 stops15h 09m
Multiple Airlines
Deal found 3/8$458
This Expedia deal was found by Cheapflights users on 3/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/187:15 pm
SEA
-
SJO
3 stops15h 30m
Multiple Airlines
Mon 8/2412:40 pm
SJO
-
SEA
3 stops21h 12m
Multiple Airlines
Deal found 3/8$460
This Avianca deal was found by Cheapflights users on 3/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Avianca is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/117:15 am
SEA
-
SJO
2 stops15h 00m
Multiple Airlines
Wed 8/197:45 am
SJO
-
SEA
1 stop15h 11m
Multiple Airlines
Deal found 3/5$461
This Avianca deal was found by Cheapflights users on 3/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Avianca is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/107:15 pm
SEA
-
SJO
2 stops12h 30m
Multiple Airlines
Mon 5/187:45 am
SJO
-
SEA
1 stop15h 04m
Multiple Airlines
Deal found 3/9$463

Find flight deals from Seattle to San José

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to San José (SJO). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated March 9, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$442
(Expedia)

One-way from

$156
(Kiwi.com)

Popular in

December

Cheapest in

October

Average price

$681
Provider with most accurate pricing for Seattle/Tacoma Intl-San José Juan Santamaria Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-San José Juan Santamaria Intl flights.
Search Deals
From Seattle/Tacoma Intl to San José Juan Santamaria Intl
Search Deals
One-way flight from Seattle/Tacoma Intl to San José Juan Santamaria Intl
Search Deals
Highest demand for flights based on searches. 0% potential increase in price ($5 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($12 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Seattle to San José that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated March 9, 2026.
Use the filters below to find and compare flights from Seattle to San José that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SeattleSan José

SEA - SJO

SEASJO

Seattle/Tacoma Intl

Fri 5/1

6:15 pm-12:35 pm

2 stops17h 20m

San José Juan Santamaria Intl

Thu 5/7

1:10 pm-12:55 am

2 stops12h 45m

$486

SeattleSan José

SEA - SJO

SEASJO

Seattle/Tacoma Intl

Sun 4/19

10:48 pm-11:53 pm

2 stops24h 05m

San José Juan Santamaria Intl

Thu 4/23

12:55 am-7:53 pm

1 stop19h 58m

$538

SeattleSan José

SEA - SJO

SEASJO

Seattle/Tacoma Intl

Sun 4/26

6:25 am-11:45 pm

1 stop16h 20m

San José Juan Santamaria Intl

Tue 5/19

12:53 am-6:54 pm

2 stops19h 01m

$557

SeattleSan José

SEA - SJO

SEASJO

Seattle/Tacoma Intl

Sat 5/2

8:25 am-11:45 pm

2 stops14h 20m

San José Juan Santamaria Intl

Tue 5/5

12:55 am-3:50 pm

1 stop15h 55m

$584

SeattleSan José

SEA - SJO

SEASJO

Seattle/Tacoma Intl

Fri 5/22

10:49 pm-11:33 pm

2 stops23h 44m

San José Juan Santamaria Intl

Mon 6/1

12:53 am-3:28 pm

1 stop15h 35m

$608

SeattleSan José

SEA - SJO

SEASJO

Seattle/Tacoma Intl

Mon 3/16

6:32 am-11:15 pm

2 stops15h 43m

San José Juan Santamaria Intl

Wed 4/1

7:45 am-10:00 pm

1 stop15h 15m

$642

SeattleSan José

SEA - SJO

SEASJO

Seattle/Tacoma Intl

Sun 6/7

11:03 pm-11:33 pm

2 stops23h 30m

San José Juan Santamaria Intl

Thu 6/11

1:03 am-10:01 pm

1 stop21h 58m

$646

SeattleSan José

SEA - SJO

SEASJO

Seattle/Tacoma Intl

Sun 4/12

6:25 am-11:53 pm

1 stop16h 28m

San José Juan Santamaria Intl

Thu 4/16

1:03 am-4:39 pm

2 stops16h 36m

$657
Quickest round-trip

SeattleSan José

SEA - SJO

SEASJO

Seattle/Tacoma Intl

Sat 3/28

6:45 am-9:32 pm

1 stop13h 47m

San José Juan Santamaria Intl

Thu 4/2

8:45 am-8:57 pm

1 stop13h 12m

$693

SeattleSan José

SEA - SJO

SEASJO

Seattle/Tacoma Intl

Thu 4/9

7:15 am-11:53 pm

2 stops15h 38m

San José Juan Santamaria Intl

Tue 4/14

1:03 am-5:01 pm

1 stop16h 58m

$707

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/4

Showing 1-10 of 17 resultsSorted by cheapest first
1
2

Compare providers for flights from Seattle to San José

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Seattle to San José in March.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*2 stars
OvagoPrice Accuracy2 starsTrust Score*3 stars
Trip.comPrice Accuracy1 starTrust Score*3 stars
JustAirTicketPrice Accuracy-Trust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Seattle-San José flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Seattle-San José flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Seattle-San José flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Seattle-San José flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Seattle-San José flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Seattle to San José

Have a flexible travel schedule? Discover the best time to fly to San José from Seattle with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

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

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

Use this chart to determine the optimal time to book a round-trip flight from Seattle to San José. Price data was last updated on March 6, 2026.

The price you pay for your flight from Seattle to San José may vary depending on when you book. For the best chance of a lower fare, look to book 16 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from Seattle to San José?

Currently, May is the cheapest month in which you can book a flight from Seattle to San José (average of $221). Flying from Seattle to San José in July is currently the most expensive (average of $506). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Reviews of airlines servicing San José

Get insights into the airlines that provide service to San José. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to San José. Reviews last updated March 9, 2026.
See what other customers who have flown with Alaska Airlines,Southwest, andDelta from Seattle to San José have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
12,001 reviews

Comfort

7.8

Food

7.1

Crew

8.5

Boarding

8.1

Entertainment

7.0

Overall

8.0

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2025

SEA - MSY

I really got a lesson in upgrades. I let my seat get chosen . Both times a middle seat...on purpose ...even when we were not full. That's petty I sat behind the first class . They got more than 1 drink ...and a snack . .and the staff actually talked to them...behind a see thru shawl/sheet in the aisle....... You could see over the seats just fine and you could hear the voices just fine. But the sheet let You KNOW. Your not welcome here. For a moment I regretted not spending 300 dollars per seat so I could see a smile and eat a sandwhich and enjoy my seat . The married couple drank champain and laughed and flirted with each other. It looked so happy and care free MONEY really does buy happiness ..the hateful glares and sighs from my seat mates brought me back to reality I wasn't rich and I still had 2 hours left in this middle seat.
Alaska Airlines
8.0
Very good
12,001 reviews
Alaska Airlines
8.0
Very good
12,001 reviews

Comfort

7.8

Food

7.1

Crew

8.5

Boarding

8.1

Entertainment

7.0

Overall

8.0

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2025

SEA - MSY

I really got a lesson in upgrades. I let my seat get chosen . Both times a middle seat...on purpose ...even when we were not full. That's petty I sat behind the first class . They got more than 1 drink ...and a snack . .and the staff actually talked to them...behind a see thru shawl/sheet in the aisle....... You could see over the seats just fine and you could hear the voices just fine. But the sheet let You KNOW. Your not welcome here. For a moment I regretted not spending 300 dollars per seat so I could see a smile and eat a sandwhich and enjoy my seat . The married couple drank champain and laughed and flirted with each other. It looked so happy and care free MONEY really does buy happiness ..the hateful glares and sighs from my seat mates brought me back to reality I wasn't rich and I still had 2 hours left in this middle seat.
Southwest
8.0
Very good
4,313 reviews
Alaska Airlines
8.0
Very good
12,001 reviews

Comfort

7.8

Food

7.1

Crew

8.5

Boarding

8.1

Entertainment

7.0

Overall

8.0

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2025

SEA - MSY

I really got a lesson in upgrades. I let my seat get chosen . Both times a middle seat...on purpose ...even when we were not full. That's petty I sat behind the first class . They got more than 1 drink ...and a snack . .and the staff actually talked to them...behind a see thru shawl/sheet in the aisle....... You could see over the seats just fine and you could hear the voices just fine. But the sheet let You KNOW. Your not welcome here. For a moment I regretted not spending 300 dollars per seat so I could see a smile and eat a sandwhich and enjoy my seat . The married couple drank champain and laughed and flirted with each other. It looked so happy and care free MONEY really does buy happiness ..the hateful glares and sighs from my seat mates brought me back to reality I wasn't rich and I still had 2 hours left in this middle seat.
Delta
7.9
Good
8,272 reviews
Alaska Airlines
8.0
Very good
12,001 reviews

Comfort

7.8

Food

7.1

Crew

8.5

Boarding

8.1

Entertainment

7.0

Overall

8.0

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2025

SEA - MSY

I really got a lesson in upgrades. I let my seat get chosen . Both times a middle seat...on purpose ...even when we were not full. That's petty I sat behind the first class . They got more than 1 drink ...and a snack . .and the staff actually talked to them...behind a see thru shawl/sheet in the aisle....... You could see over the seats just fine and you could hear the voices just fine. But the sheet let You KNOW. Your not welcome here. For a moment I regretted not spending 300 dollars per seat so I could see a smile and eat a sandwhich and enjoy my seat . The married couple drank champain and laughed and flirted with each other. It looked so happy and care free MONEY really does buy happiness ..the hateful glares and sighs from my seat mates brought me back to reality I wasn't rich and I still had 2 hours left in this middle seat.
United Airlines
7.4
Good
9,408 reviews
Alaska Airlines
8.0
Very good
12,001 reviews

Comfort

7.8

Food

7.1

Crew

8.5

Boarding

8.1

Entertainment

7.0

Overall

8.0

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2025

SEA - MSY

I really got a lesson in upgrades. I let my seat get chosen . Both times a middle seat...on purpose ...even when we were not full. That's petty I sat behind the first class . They got more than 1 drink ...and a snack . .and the staff actually talked to them...behind a see thru shawl/sheet in the aisle....... You could see over the seats just fine and you could hear the voices just fine. But the sheet let You KNOW. Your not welcome here. For a moment I regretted not spending 300 dollars per seat so I could see a smile and eat a sandwhich and enjoy my seat . The married couple drank champain and laughed and flirted with each other. It looked so happy and care free MONEY really does buy happiness ..the hateful glares and sighs from my seat mates brought me back to reality I wasn't rich and I still had 2 hours left in this middle seat.
American Airlines
7.1
Good
11,403 reviews
Alaska Airlines
8.0
Very good
12,001 reviews

Comfort

7.8

Food

7.1

Crew

8.5

Boarding

8.1

Entertainment

7.0

Overall

8.0

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2025

SEA - MSY

I really got a lesson in upgrades. I let my seat get chosen . Both times a middle seat...on purpose ...even when we were not full. That's petty I sat behind the first class . They got more than 1 drink ...and a snack . .and the staff actually talked to them...behind a see thru shawl/sheet in the aisle....... You could see over the seats just fine and you could hear the voices just fine. But the sheet let You KNOW. Your not welcome here. For a moment I regretted not spending 300 dollars per seat so I could see a smile and eat a sandwhich and enjoy my seat . The married couple drank champain and laughed and flirted with each other. It looked so happy and care free MONEY really does buy happiness ..the hateful glares and sighs from my seat mates brought me back to reality I wasn't rich and I still had 2 hours left in this middle seat.

Related info for your journey

Find useful and relevant information for your journey from Seattle to San José. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Seattle to San José?

    A quick flight from Seattle to San José can take about 17h 20m. Southwest provides one of the quickest options available for as low as $486. Airlines will cover a distance of 3405 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines flying from Seattle to San José round-trip?

    Flying on Avianca is currently your cheapest option to San José, with prices starting at $152. Additional round-trip tickets that might be worth considering are offered by Delta and JetBlue, with the lowest prices starting at $345 and $362, respectively. These flights start at 74% lower than the current average price 3 months from now.

  • What are the cheapest airlines to fly from Seattle to San José one-way?

    For one-way options, check prices for Alaska Airlines. According to our data, you can fly for as low as $161. Users have also found prices from $177 and $185 on Southwest and United Airlines, respectively.

  • Where are the most common layover locations when flying from Seattle to San José?

    The most popular layover on flights from Seattle to San José is Houston. Houston is followed by Dallas in terms of the most popular layover location on flights from Seattle to San José.

  • What are some popular things to do or see while on a layover in Houston?

    Houston travelers tend to visit Space Center Houston, House of Blues Houston, and Revention Music Center more than anywhere else. Travelers on a layover in Houston can visit Space Center Houston, House of Blues Houston, and Revention Music Center, by traveling 33.5 mi, 16.1 mi, and 15.5 mi, respectively after landing at Houston George Bush Intcntl. Those on a layover in Houston in need of a rental car can book one at Houston George Bush Intcntl for about $36.

  • What are some popular points of interest to see during a layover in Dallas?

    The majority of Dallas visitors spend their time at American Airlines Center, Dallas World Aquarium, and Reunion Tower. American Airlines Center, Dallas World Aquarium, and Reunion Tower can be accessed by traveling approximately 15.0 mi, 15.5 mi, and 15.6 mi, respectively from Dallas/Fort Worth. Travelers in need of a car in Dallas can rent one for about $52 per day.

  • Where are the least popular layover locations for Seattle to San José flights?

    Seattle to San José flights have a layover in Los Angeles the least frequently.

  • Can I find deals for flights from Seattle to San José that include hotel bookings?

    Yes. In addition to deals on Seattle to San José flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Seattle to San José?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Seattle to San José.

  • Can I find deals for business class flights from Seattle to San José?

    Yes. Cheapflights offers flight deals from Seattle to San José by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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

    Currently, May is the cheapest month in which you can book a flight from Seattle to San José (average of $221). Flying from Seattle to San José in July is currently the most expensive (average of $506). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near San José?

Book flights to San José if you plan to visit one of these locations
Alajuela
Monteverde
Jacó
Heredia
Dominical
Manuel Antonio

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Top 8 airlines flying from Seattle to San José

Discover the top 8 airlines that operate flights from Seattle to San José. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated March 9, 2026.
AirlineCheapestAverageFlexibilityOn-time
AviancaCheapest$152Average$221FlexibilityNo cancel feeOn-time71%
DeltaCheapest$345Average$583FlexibilityNo cancel feeOn-timeN/A
JetBlueCheapest$362Average$681FlexibilityNo cancel feeOn-time62%
Alaska AirlinesCheapest$386Average$584FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$387Average$579FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$396Average$600FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$572Average$755FlexibilityNo cancel feeOn-time63%
AeromexicoCheapest$766Average$981FlexibilityNo cancel feeOn-timeN/A

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