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San José

$176+ 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 8/23. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — SJO
Aug 3 — Aug 101
Sun 8/3
Sun 8/10
1 adult, Economy
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Cheapflights Tip: The best prices from Seattle/Tacoma Intl to San José Juan Santamaria Intl are usually found in May or September, booked 69 days in advance, depart on a Tuesday or Monday and return on a Tuesday

Cheap 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 July 29, 2025.

Round-trip from

$458
(Alaska Airlines)

One-way from

$176
(Avianca)

Popular in

December

Cheapest in

May

Average price

$631
From Seattle/Tacoma Intl to San José Juan Santamaria Intl
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One-way flight from Seattle/Tacoma Intl to San José Juan Santamaria Intl
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Highest demand for flights based on searches. 7% potential increase in price ($52 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($20 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Find 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 July 29, 2025.

This Alaska Airlines deal was found by Cheapflights users on 7/27. 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.
Mon 10/62:16 pmSEA - SJO
2 stops51h 48mAlaska Airlines
Wed 10/291:11 amSJO - SEA
2 stops22h 03mAlaska Airlines
Deal found 7/27$458
This Avianca deal was found by Cheapflights users on 7/27. 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.
Thu 8/214:20 pmSEA - SJO
2 stops14h 20mMultiple Airlines
Mon 8/255:10 pmSJO - SEA
1 stop17h 30mMultiple Airlines
Deal found 7/27$464
This Expedia deal was found by Cheapflights users on 7/27. 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.
Mon 9/2911:59 pmSEA - SJO
1 stop12h 01mJetBlue
Mon 10/61:00 pmSJO - SEA
2 stops34h 10mJetBlue
Deal found 7/27$468
This Southwest deal was found by Cheapflights users on 7/27. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/265:15 amSEA - SJO
2 stops12h 40mSouthwest
Tue 9/28:50 amSJO - SEA
2 stops13h 05mSouthwest
Deal found 7/27$481
This American Airlines deal was found by Cheapflights users on 7/29. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/612:59 amSEA - SJO
1 stop19h 02mAmerican Airlines
Sat 11/156:22 amSJO - SEA
2 stops13h 41mAmerican Airlines
Deal found 7/29$486
This United Airlines deal was found by Cheapflights users on 7/28. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/307:28 pmSEA - SJO
2 stops13h 57mUnited Airlines
Mon 11/39:40 amSJO - SEA
1 stop10h 45mUnited Airlines
Deal found 7/28$498

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 July 29, 2025.
Use the filters below to find and compare flights from Seattle to San José that are best for you.

Fly from

Seattle

Fly to

San José

Route

Depart

Return

Price

SeattleSan José

SEA - SJO

SEASJO

Seattle/Tacoma Intl

Mon 10/6

2:16 pm-7:04 pm

2 stops51h 48m

San José Juan Santamaria Intl

Wed 10/29

1:11 am-10:14 pm

2 stops22h 03m

$458

SeattleSan José

SEA - SJO

SEASJO

Seattle/Tacoma Intl

Thu 8/21

4:20 pm-7:40 am

2 stops14h 20m

San José Juan Santamaria Intl

Mon 8/25

5:10 pm-9:40 am

1 stop17h 30m

$464

SeattleSan José

SEA - SJO

SEASJO

Seattle/Tacoma Intl

Mon 9/29

11:59 pm-1:00 pm

1 stop12h 01m

San José Juan Santamaria Intl

Mon 10/6

1:00 pm-10:10 pm

2 stops34h 10m

$468

SeattleSan José

SEA - SJO

SEASJO

Seattle/Tacoma Intl

Tue 8/26

5:15 am-6:55 pm

2 stops12h 40m

San José Juan Santamaria Intl

Tue 9/2

8:50 am-8:55 pm

2 stops13h 05m

$481

SeattleSan José

SEA - SJO

SEASJO

Seattle/Tacoma Intl

Thu 11/6

12:59 am-10:01 pm

1 stop19h 02m

San José Juan Santamaria Intl

Sat 11/15

6:22 am-6:03 pm

2 stops13h 41m

$486

SeattleSan José

SEA - SJO

SEASJO

Seattle/Tacoma Intl

Thu 10/30

7:28 pm-10:25 am

2 stops13h 57m

San José Juan Santamaria Intl

Mon 11/3

9:40 am-6:25 pm

1 stop10h 45m

$498

SeattleSan José

SEA - SJO

SEASJO

Seattle/Tacoma Intl

Sat 8/23

4:20 pm-7:40 am

2 stops14h 20m

$176

SeattleSan José

SEA - SJO

SEASJO

Seattle/Tacoma Intl

Fri 8/29

9:25 pm-7:04 pm

1 stop20h 39m

$181

SeattleSan José

SEA - SJO

SEASJO

Seattle/Tacoma Intl

Fri 9/12

7:48 am-5:57 pm

1 stop9h 09m

$183

SeattleSan José

SEA - SJO

SEASJO

Seattle/Tacoma Intl

Wed 11/19

6:55 pm-1:15 pm

2 stops16h 20m

$192

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/26

Showing 1-10 of 12 results
1
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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, San José Province?

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 July 25, 2025.

The best time to book flights from Seattle to San José, San José Province is 69 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Currently, September is the cheapest month in which you can book a flight from Seattle to San José, San José Province (average of $398). Flying from Seattle to San José, San José Province in March is currently the most expensive (average of $555). 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.

What is the cheapest time of day to fly from SEA to SJO?

Find hourly flight availability from Seattle to San José. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 29, 2025.

It’s typically best to fly out from Seattle to San José, San José Province at noon. Doing so could potentially save you 6% on the flight price compared to flying in the morning, which is usually more expensive.

What’s the top layover airport for flights from Seattle to San José, San José Province?

Share of 1-stop round-trip flights from Seattle to San José, San José Province chosen by Cheapflights users in the past 12 months, using the same layover each way.

Mexico City (MEX) – chosen by Cheapflights users on 50% of 1-stop itineraries from Seattle to San José, San José Province on Cheapflights.

What’s the cheapest layover airport for flights from Seattle to San José, San José Province?

Average round-trip fare for 1-stop flights from Seattle to San José, San José Province, chosen by Cheapflights users in the past 12 months, with the same layover each way.

Los Angeles (LAX) is the most affordable 1-stop option, with an average round-trip price of $686.

What’s the fastest layover option from Seattle to San José, San José Province?

Shortest average travel time for 1-stop one-way flights from Seattle to San José, San José Province, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.

Flights via Mexico City (MEX) have the shortest average one-way travel time for 1-stop routes: 6h 28m.

Which airport typically offers the quickest layover for flights from Seattle to San José, San José Province?

Average layover duration for 1-stop one-way flights from Seattle to San José, San José Province, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via Los Angeles (LAX) offer the fastest connection on this route, with an average layover time of 1h 52m.

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 July 29, 2025.
See what other customers who have flown with Alaska Airlines, Southwest, and United Airlines 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
10,000 reviews

Comfort

7.8

Boarding

8.1

Crew

8.5

Entertainment

7.1

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Boarding

8.1

Crew

8.5

Entertainment

7.1

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Southwest
8.0
Very good
4,238 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Boarding

8.1

Crew

8.5

Entertainment

7.1

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
United Airlines
7.4
Good
8,899 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Boarding

8.1

Crew

8.5

Entertainment

7.1

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
JetBlue
7.3
Good
2,913 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Boarding

8.1

Crew

8.5

Entertainment

7.1

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Boarding

8.1

Crew

8.5

Entertainment

7.1

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.

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.

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

    Alaska Airlines, at $458, was found to be the cheapest airline from Seattle to San José, San José Province.Alternate airlines to your destination round-trip include JetBlue and Southwest. You may be able to fly from Seattle to San José, San José Province for 29% less than the average price by searching for these airlines.

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

    The cheapest airlines for a one-way flight from Seattle to San José, San José Province are Alaska Airlines ($181), American Airlines ($183), and Southwest ($192).

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

    Most of the time, Seattle to San José, San José Province flights that have layovers will stop in Dallas. Houston sees the second most layovers for non-direct flights flying from Seattle to San José, San José Province.

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

    Dallas travelers tend to visit American Airlines Center, Dallas World Aquarium, and Dos Equis Pavilion more than anywhere else. Those on a layover in Dallas interested in visiting American Airlines Center, Dallas World Aquarium, or Dos Equis Pavilion can do so by traveling 15.0 mi, 15.5 mi, and 18.3 mi, respectively from Dallas/Fort Worth. Travelers can rent a car at Dallas/Fort Worth for an average daily rate of $51 to make sightseeing during their layover a little easier.

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

    Most Houston visitors opt to spend their time at Space Center Houston, House of Blues Houston, and Lakewood Church. Space Center Houston, House of Blues Houston, and Lakewood Church are located about 33.5 mi, 16.1 mi, and 18.6 mi, respectively from Houston George Bush Intcntl. Those looking to explore during their layover in Houston can rent a car from Houston George Bush Intcntl for about $38 per day.

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

    Seattle to San José, San José Province flights have a layover in Miami least often. Los Angeles sees the next fewest layovers on Seattle to San José, San José Province flights.

  • 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, San José Province?

    Currently, September is the cheapest month in which you can book a flight from Seattle to San José, San José Province (average of $398). Flying from Seattle to San José, San José Province in March is currently the most expensive (average of $555). 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
Heredia
Manuel Antonio
Alajuela
Monteverde
Jacó

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Top 9 airlines flying from Seattle to San José

Discover the top 9 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 July 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
AviancaCheapest$152Average$217FlexibilityNo cancel feeOn-time71%
Spirit AirlinesCheapest$308Average$387FlexibilityNo cancel feeOn-time65%
Copa AirlinesCheapest$423Average$783FlexibilityNo cancel feeOn-time70%
Alaska AirlinesCheapest$443Average$623FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$451Average$630FlexibilityNo cancel feeOn-time71%
DeltaCheapest$486Average$657FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$492Average$689FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$521Average$639FlexibilityNo cancel feeOn-time63%
AeromexicoCheapest$734Average$974FlexibilityNo cancel feeOn-timeN/A

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