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$215+ Cheap flights from San José (SJO) to Seattle (SEA)

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 5/20. Fares are subject to change and may not be available on all flights or dates of travel.
SJO — SEA
May 5 — May 121
Mon 5/5
Mon 5/12
1 adult, Economy
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1. Tell us where you want to go

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Cheapflights Tip: The best prices from San José Juan Santamaria Intl to Seattle/Tacoma Intl are usually found in February or August, booked 83 days in advance, depart on a Tuesday or Saturday and return on a Tuesday

Cheap flight deals from San José to Seattle

Discover tips and strategies to find the most affordable flight options for your journey from San José (SJO) to Seattle (SEA). 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 April 30, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$452
(Alaska Airlines)

One-way from

$217
(Alaska Airlines)

Popular in

December

Cheapest in

February

Average price

$606
Provider with most accurate pricing for San José Juan Santamaria Intl-Seattle/Tacoma Intl flight deals.
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Provider most trusted by Cheapflights users for San José Juan Santamaria Intl-Seattle/Tacoma Intl flights.
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From San José Juan Santamaria Intl to Seattle/Tacoma Intl
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One-way flight from San José Juan Santamaria Intl to Seattle/Tacoma Intl
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Highest demand for flights based on searches. 5% potential increase in price ($32 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($11 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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Find flight deals from San José to Seattle

Cheapest flights from San José to Seattle
Explore the most affordable flight options available from San José to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 30, 2025.

This Alaska Airlines deal was found by Cheapflights users on 4/28. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/211:06 amSJO - SEA
2 stops15h 20mAlaska Airlines
Mon 5/266:00 amSEA - SJO
1 stop16h 46mAlaska Airlines
Deal found 4/28$452
This United Airlines deal was found by Cheapflights users on 4/27. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/125:30 amSJO - SEA
1 stop18h 30mUnited Airlines
Thu 6/1911:59 pmSEA - SJO
1 stop21h 40mUnited Airlines
Deal found 4/27$457
This Vliegwinkel deal was found by Cheapflights users on 4/28. 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 Vliegwinkel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/1112:50 amSJO - SEA
1 stop24h 09mMultiple Airlines
Thu 6/199:40 pmSEA - SJO
2 stops12h 35mMultiple Airlines
Deal found 4/28$460
This American Airlines deal was found by Cheapflights users on 4/29. 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.
Fri 5/96:03 amSJO - SEA
1 stop18h 04mAmerican Airlines
Sun 5/111:10 amSEA - SJO
1 stop20h 07mAmerican Airlines
Deal found 4/29$480
This FlightHub deal was found by Cheapflights users on 4/28. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/512:23 pmSJO - SEA
2 stops24h 12mSpirit Airlines
Wed 5/146:00 amSEA - SJO
2 stops27h 27mSpirit Airlines
Deal found 4/28$539
This Southwest deal was found by Cheapflights users on 4/29. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/48:45 amSJO - SEA
2 stops16h 40mSouthwest
Mon 8/1111:00 pmSEA - SJO
2 stops12h 45mSouthwest
Deal found 4/29$542
This JetBlue deal was found by Cheapflights users on 4/28. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/191:54 pmSJO - SEA
1 stop32h 00mJetBlue
Sun 6/110:40 pmSEA - SJO
1 stop13h 25mJetBlue
Deal found 4/28$545
This Copa Airlines deal was found by Cheapflights users on 4/28. 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 Copa Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/198:44 amSJO - SEA
2 stops15h 34mCopa Airlines
Tue 12/26:30 amSEA - SJO
2 stops23h 19mCopa Airlines
Deal found 4/28$589
This Delta deal was found by Cheapflights users on 4/28. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/187:00 amSJO - SEA
2 stops16h 06mDelta
Mon 12/16:00 amSEA - SJO
1 stop14h 15mDelta
Deal found 4/28$644

Cheapflights Fare Finder

Customize your flight search to find flights from San José to Seattle 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 April 30, 2025.
Use the filters below to find and compare flights from San José to Seattle that are best for you.

Fly from

San José

Fly to

Seattle

Route

Depart

Return

Price

San JoséSeattle

SJO - SEA

SJOSEA

San José Juan Santamaria Intl

Wed 5/21

1:06 am-3:26 pm

2 stops15h 20m

Seattle/Tacoma Intl

Mon 5/26

6:00 am-11:46 pm

1 stop16h 46m

$452

San JoséSeattle

SJO - SEA

SJOSEA

San José Juan Santamaria Intl

Thu 6/12

5:30 am-11:00 pm

1 stop18h 30m

Seattle/Tacoma Intl

Thu 6/19

11:59 pm-10:39 pm

1 stop21h 40m

$457

San JoséSeattle

SJO - SEA

SJOSEA

San José Juan Santamaria Intl

Wed 6/11

12:50 am-11:59 pm

1 stop24h 09m

Seattle/Tacoma Intl

Thu 6/19

9:40 pm-11:15 am

2 stops12h 35m

$460

San JoséSeattle

SJO - SEA

SJOSEA

San José Juan Santamaria Intl

Fri 5/9

6:03 am-11:07 pm

1 stop18h 04m

Seattle/Tacoma Intl

Sun 5/11

1:10 am-10:17 pm

1 stop20h 07m

$480

San JoséSeattle

SJO - SEA

SJOSEA

San José Juan Santamaria Intl

Wed 6/11

8:45 am-12:15 am

2 stops16h 30m

Seattle/Tacoma Intl

Mon 6/16

6:30 am-7:40 pm

2 stops12h 10m

$513

San JoséSeattle

SJO - SEA

SJOSEA

San José Juan Santamaria Intl

Mon 5/19

1:54 pm-8:54 pm

1 stop32h 00m

Seattle/Tacoma Intl

Sun 6/1

10:40 pm-1:05 pm

1 stop13h 25m

$545

San JoséSeattle

SJO - SEA

SJOSEA

San José Juan Santamaria Intl

Thu 5/22

12:28 pm-2:25 pm

2 stops26h 57m

Seattle/Tacoma Intl

Mon 5/26

3:20 pm-11:33 am

2 stops19h 13m

$553

San JoséSeattle

SJO - SEA

SJOSEA

San José Juan Santamaria Intl

Tue 5/20

1:06 am-6:27 pm

1 stop18h 21m

$215

San JoséSeattle

SJO - SEA

SJOSEA

San José Juan Santamaria Intl

Sat 6/7

7:25 am-8:49 pm

1 stop14h 24m

$228

San JoséSeattle

SJO - SEA

SJOSEA

San José Juan Santamaria Intl

Thu 6/5

11:32 am-2:11 pm

2 stops27h 39m

$229

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/29

Showing 1-10 of 18 results
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Compare providers for flights from San José to Seattle

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 San José to Seattle in April.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*2 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*3 stars

*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 San José, San José Province-Seattle flights, users find the pricing of AranGrant to be most consistent on Cheapflights vs. AranGrant Users can find the same prices on San José, San José Province-Seattle flight deals on Cheapflights vs. AranGrant >95% of the time. Price accuracy is based on data collected from San José, San José Province-Seattle flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on San José, San José Province-Seattle flights, Cheapflights users trust AranGrant the most. AranGrant 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 San José, San José Province-Seattle 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 San José to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from San José 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 San José to Seattle

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

Use this chart to determine the optimal time to book a round-trip flight from San José to Seattle. Price data was last updated on April 25, 2025.

Booking 83 days in advance of your planned departure date is, on average, the best time to get cheap flights from San José, San José Province to Seattle. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Currently, January is the cheapest month in which you can book a flight from San José, San José Province to Seattle (average of $238). Flying from San José, San José Province to Seattle in July is currently the most expensive (average of $405). 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 SJO to SEA?

Find hourly flight availability from San José to Seattle. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 30, 2025.

It’s typically best to fly out from San José, San José Province to Seattle in the morning. Doing so could potentially save you 9% on the flight price compared to flying at noon, which is usually more expensive.

Rainfall in Seattle by month

Plan your trip to Seattle by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Seattle ranges from 0.7 - 6.6 inches per month. November is typically the wettest month, when rainfall can reach 6.6 in. July is typically the driest time to visit Seattle when rainfall is around 0.7 in.

Temperature in Seattle by month

Plan your trip to Seattle by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Seattle, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 66.2 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 41.0 F).

Reviews of airlines servicing Seattle

Get insights into the airlines that provide service to Seattle. 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 Seattle. Reviews last updated April 30, 2025.
Read through reviews of airlines operating flights from San José to Seattle, such as Alaska Airlines, Southwest and Delta. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
9,961 reviews

Crew

8.5

Boarding

8.2

Comfort

7.9

Entertainment

7.1

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Alaska Airlines
8.0
Very good
9,961 reviews
Alaska Airlines
8.0
Very good
9,961 reviews

Crew

8.5

Boarding

8.2

Comfort

7.9

Entertainment

7.1

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Southwest
8.0
Very good
4,295 reviews
Alaska Airlines
8.0
Very good
9,961 reviews

Crew

8.5

Boarding

8.2

Comfort

7.9

Entertainment

7.1

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Delta
8.0
Very good
7,929 reviews
Alaska Airlines
8.0
Very good
9,961 reviews

Crew

8.5

Boarding

8.2

Comfort

7.9

Entertainment

7.1

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Aeromexico
7.5
Good
1,698 reviews
Alaska Airlines
8.0
Very good
9,961 reviews

Crew

8.5

Boarding

8.2

Comfort

7.9

Entertainment

7.1

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
SWISS
7.5
Good
1,588 reviews
Alaska Airlines
8.0
Very good
9,961 reviews

Crew

8.5

Boarding

8.2

Comfort

7.9

Entertainment

7.1

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Related info for your journey

Find useful and relevant information for your journey from San José to Seattle. 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 San José, San José Province to Seattle round-trip?

    Flying on Alaska Airlines is currently your cheapest option to Seattle, with prices starting at $452. Additional round-trip tickets that might be worth considering are offered by United Airlines and American Airlines, with the lowest prices starting at $457 and $480, respectively. Alaska Airlines is 23% cheaper than the average price of flights available within the next 90 days to this destination.

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

    The cheapest airline one-way is Alaska Airlines, with whom users have recently found tickets for as low as $217. However, be on the lookout for offers from Delta and Spirit Airlines, as they are both options that can get you from San José, San José Province to Seattle for a low price.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from San José to Seattle 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 San José, San José Province to Seattle?

    Currently, January is the cheapest month in which you can book a flight from San José, San José Province to Seattle (average of $238). Flying from San José, San José Province to Seattle in July is currently the most expensive (average of $405). 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
SeaTac
Tukwila
Tacoma
Lakewood
Renton
Ocean Shores
Lacey
Leavenworth
Federal Way
Olympia
Shoreline
Cle Elum
Centralia
Kent
Lynnwood
Aberdeen
Shelton
Silverdale
Redmond
Issaquah

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for San José to Seattle

See prices for flight routes from nearby airports that may be better suited for you.
San José to Portland flights
Liberia to Seattle flights
San José to Spokane flights
Liberia to Portland flights

Top 4 airlines flying from San José to Seattle

Discover the top 4 airlines that operate flights from San José to Seattle. 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 April 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$410Average$590FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$447Average$661FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$452Average$621FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$467Average$602FlexibilityNo cancel feeOn-time71%

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