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$180+ 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 12/8. Fares are subject to change and may not be available on all flights or dates of travel.
SJO — SEA
Aug 6 — Aug 131
Wed 8/6
Wed 8/13
1 adult, Economy
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Cheapflights Tip: The best prices from San José Juan Santamaria Intl to Seattle/Tacoma Intl are usually found in October or February, 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 August 1, 2025.

Round-trip from

$443
(American Airlines)

One-way from

$180
(Avianca)

Popular in

December

Cheapest in

October

Average price

$529
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. 8% potential increase in price ($56 potential increase over avg. RT price).
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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 August 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 August 1, 2025.

This American Airlines deal was found by Cheapflights users on 7/30. 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.
Mon 8/186:00 amSJO - SEA
1 stop19h 14mAmerican Airlines
Tue 8/268:08 pmSEA - SJO
1 stop16h 32mAmerican Airlines
Deal found 7/30$443
This United Airlines deal was found by Cheapflights users on 7/30. 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.
Sat 8/168:45 amSJO - SEA
1 stop13h 12mUnited Airlines
Wed 9/107:10 amSEA - SJO
1 stop11h 27mUnited Airlines
Deal found 7/30$446
This Southwest deal was found by Cheapflights users on 7/30. 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.
Wed 9/38:50 amSJO - SEA
2 stops15h 45mSouthwest
Sat 9/136:55 amSEA - SJO
2 stops11h 00mSouthwest
Deal found 7/30$478
This Kiwi.com deal was found by Cheapflights users on 7/31. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/1811:27 amSJO - SEA
2 stops22h 18mMultiple Airlines
Sun 9/288:37 amSEA - SJO
1 stop25h 37mMultiple Airlines
Deal found 7/31$481
This Alaska Airlines deal was found by Cheapflights users on 8/1. 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.
Sat 11/81:58 amSJO - SEA
1 stop11h 08mAlaska Airlines
Fri 11/146:25 amSEA - SJO
1 stop16h 13mAlaska Airlines
Deal found 8/1$498

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 August 1, 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

Mon 8/18

6:00 am-12:14 am

1 stop19h 14m

Seattle/Tacoma Intl

Tue 8/26

8:08 pm-1:40 pm

1 stop16h 32m

$443

San JoséSeattle

SJO - SEA

SJOSEA

San José Juan Santamaria Intl

Sat 8/16

8:45 am-8:57 pm

1 stop13h 12m

Seattle/Tacoma Intl

Wed 9/10

7:10 am-7:37 pm

1 stop11h 27m

$446

San JoséSeattle

SJO - SEA

SJOSEA

San José Juan Santamaria Intl

Wed 9/3

8:50 am-11:35 pm

2 stops15h 45m

Seattle/Tacoma Intl

Sat 9/13

6:55 am-6:55 pm

2 stops11h 00m

$478

San JoséSeattle

SJO - SEA

SJOSEA

San José Juan Santamaria Intl

Mon 8/18

11:27 am-8:45 am

2 stops22h 18m

Seattle/Tacoma Intl

Sun 9/28

8:37 am-11:14 am

1 stop25h 37m

$481

San JoséSeattle

SJO - SEA

SJOSEA

San José Juan Santamaria Intl

Sat 11/8

1:58 am-11:06 am

1 stop11h 08m

Seattle/Tacoma Intl

Fri 11/14

6:25 am-12:38 am

1 stop16h 13m

$498

San JoséSeattle

SJO - SEA

SJOSEA

San José Juan Santamaria Intl

Mon 12/8

5:00 pm-9:45 am

1 stop18h 45m

$180

San JoséSeattle

SJO - SEA

SJOSEA

San José Juan Santamaria Intl

Tue 10/7

8:37 am-11:15 pm

1 stop15h 38m

$215

San JoséSeattle

SJO - SEA

SJOSEA

San José Juan Santamaria Intl

Mon 12/8

2:26 am-5:21 pm

2 stops16h 55m

$218

San JoséSeattle

SJO - SEA

SJOSEA

San José Juan Santamaria Intl

Sat 9/6

6:00 am-11:59 pm

1 stop18h 59m

$220

San JoséSeattle

SJO - SEA

SJOSEA

San José Juan Santamaria Intl

Mon 8/11

11:24 am-4:25 pm

3 stops30h 01m

$323

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/30

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 July 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 June is currently the most expensive (average of $389). 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 August 1, 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.

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 August 1, 2025.
Peruse reviews from past customers who have flown with Alaska Airlines, Southwest, and United Airlines from San José to Seattle to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Entertainment

7.1

Boarding

8.1

Overall

8.0

Crew

8.5

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

YEG - SEA

Alaska airline excellent airline pilot smooth, landing, crew staff very nice friendly behave
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Entertainment

7.1

Boarding

8.1

Overall

8.0

Crew

8.5

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

YEG - SEA

Alaska airline excellent airline pilot smooth, landing, crew staff very nice friendly behave
Southwest
8.0
Very good
4,246 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Entertainment

7.1

Boarding

8.1

Overall

8.0

Crew

8.5

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

YEG - SEA

Alaska airline excellent airline pilot smooth, landing, crew staff very nice friendly behave
United Airlines
7.4
Good
8,900 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Entertainment

7.1

Boarding

8.1

Overall

8.0

Crew

8.5

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

YEG - SEA

Alaska airline excellent airline pilot smooth, landing, crew staff very nice friendly behave
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Entertainment

7.1

Boarding

8.1

Overall

8.0

Crew

8.5

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

YEG - SEA

Alaska airline excellent airline pilot smooth, landing, crew staff very nice friendly behave
Spirit Airlines
6.3
Okay
8,049 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Entertainment

7.1

Boarding

8.1

Overall

8.0

Crew

8.5

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

YEG - SEA

Alaska airline excellent airline pilot smooth, landing, crew staff very nice friendly behave

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 American Airlines is currently your cheapest option to Seattle, with prices starting at $443. Additional round-trip tickets that might be worth considering are offered by United Airlines and Southwest, with the lowest prices starting at $446 and $478, respectively. American 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 United Airlines, with whom users have recently found tickets for as low as $215. However, be on the lookout for offers from Alaska Airlines and American 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 June is currently the most expensive (average of $389). 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 Seattle?

Book flights to Seattle if you plan to visit one of these locations
SeaTac
Tukwila
Tacoma
Ocean Shores
Lakewood
Lynnwood
Lacey
Leavenworth
Renton
Olympia
Puyallup
Kent
Cle Elum
Chehalis
Kirkland
Issaquah
Aberdeen
Shoreline
Federal Way
Shelton

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
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Liberia to Seattle 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 August 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$433Average$580FlexibilityNo cancel feeOn-time71%
DeltaCheapest$440Average$513FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$443Average$547FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$447Average$673FlexibilityNo cancel feeOn-time75%

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