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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 9/29. Fares are subject to change and may not be available on all flights or dates of travel.
SJO — SEA
Jul 6 — Jul 131
Sun 7/6
Sun 7/13
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 February or May, 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 July 1, 2025.

Round-trip from

$458
(United Airlines)

One-way from

$180
(Avianca)

Popular in

December

Cheapest in

February

Average price

$593
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. 6% potential increase in price ($37 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($10 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 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 July 1, 2025.

This United Airlines deal was found by Cheapflights users on 6/30. 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.
Mon 8/48:45 amSJO - SEA
1 stop13h 12mUnited Airlines
Tue 8/127:00 pmSEA - SJO
2 stops16h 26mUnited Airlines
Deal found 6/30$458
This Avianca deal was found by Cheapflights users on 6/30. 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 Avianca is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/45:10 pmSJO - SEA
1 stop19h 37mMultiple Airlines
Sat 8/163:59 pmSEA - SJO
2 stops14h 41mMultiple Airlines
Deal found 6/30$459
This Southwest deal was found by Cheapflights users on 6/29. 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.
Thu 8/218:50 amSJO - SEA
2 stops16h 15mSouthwest
Thu 9/2511:10 pmSEA - SJO
2 stops12h 35mSouthwest
Deal found 6/29$460
This American Airlines deal was found by Cheapflights users on 6/30. 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.
Fri 9/267:27 amSJO - SEA
1 stop10h 26mAmerican Airlines
Fri 10/105:22 amSEA - SJO
1 stop11h 54mAmerican Airlines
Deal found 6/30$461
This Alaska Airlines deal was found by Cheapflights users on 6/30. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/1812:50 amSJO - SEA
1 stop20h 10mAlaska Airlines
Thu 8/289:25 pmSEA - SJO
1 stop20h 39mAlaska Airlines
Deal found 6/30$489
This Mytrip deal was found by Cheapflights users on 7/1. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/1512:16 pmSJO - SEA
3 stops29h 09mSpirit Airlines
Tue 7/225:30 pmSEA - SJO
2 stops15h 59mSpirit Airlines
Deal found 7/1$508
This Delta deal was found by Cheapflights users on 6/30. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/192:17 pmSJO - SEA
1 stop11h 57mDelta
Wed 12/36:00 amSEA - SJO
1 stop14h 15mDelta
Deal found 6/30$519

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 July 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 8/4

8:45 am-8:57 pm

1 stop13h 12m

Seattle/Tacoma Intl

Tue 8/12

7:00 pm-12:26 pm

2 stops16h 26m

$458

San JoséSeattle

SJO - SEA

SJOSEA

San José Juan Santamaria Intl

Mon 8/4

5:10 pm-11:47 am

1 stop19h 37m

Seattle/Tacoma Intl

Sat 8/16

3:59 pm-7:40 am

2 stops14h 41m

$459

San JoséSeattle

SJO - SEA

SJOSEA

San José Juan Santamaria Intl

Thu 8/21

8:50 am-12:05 am

2 stops16h 15m

Seattle/Tacoma Intl

Thu 9/25

11:10 pm-12:45 pm

2 stops12h 35m

$460

San JoséSeattle

SJO - SEA

SJOSEA

San José Juan Santamaria Intl

Fri 9/26

7:27 am-4:53 pm

1 stop10h 26m

Seattle/Tacoma Intl

Fri 10/10

5:22 am-6:16 pm

1 stop11h 54m

$461

San JoséSeattle

SJO - SEA

SJOSEA

San José Juan Santamaria Intl

Mon 8/18

12:50 am-4:54 pm

1 stop17h 04m

Seattle/Tacoma Intl

Wed 9/24

9:40 pm-7:04 pm

2 stops44h 24m

$489

San JoséSeattle

SJO - SEA

SJOSEA

San José Juan Santamaria Intl

Tue 7/15

12:16 pm-4:25 pm

3 stops29h 09m

Seattle/Tacoma Intl

Tue 7/22

5:30 pm-10:29 am

2 stops15h 59m

$508

San JoséSeattle

SJO - SEA

SJOSEA

San José Juan Santamaria Intl

Wed 11/19

2:17 pm-12:14 am

1 stop11h 57m

Seattle/Tacoma Intl

Wed 12/3

6:00 am-10:15 pm

1 stop14h 15m

$519

San JoséSeattle

SJO - SEA

SJOSEA

San José Juan Santamaria Intl

Mon 9/29

4:20 pm-9:40 am

2 stops18h 20m

$180

San JoséSeattle

SJO - SEA

SJOSEA

San José Juan Santamaria Intl

Wed 9/10

1:35 pm-11:59 pm

1 stop11h 24m

$222

San JoséSeattle

SJO - SEA

SJOSEA

San José Juan Santamaria Intl

Wed 9/10

7:27 am-7:09 pm

1 stop12h 42m

$226

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/30

Showing 1-10 of 14 results
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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 June 27, 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 $391). 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 July 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 July 1, 2025.
Peruse reviews from past customers who have flown with Alaska Airlines, Southwest, and Delta 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

Boarding

8.1

Comfort

7.8

Food

7.1

Overall

8.0

Entertainment

7.1

Crew

8.5

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
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Comfort

7.8

Food

7.1

Overall

8.0

Entertainment

7.1

Crew

8.5

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
4,275 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Comfort

7.8

Food

7.1

Overall

8.0

Entertainment

7.1

Crew

8.5

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
7,974 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Comfort

7.8

Food

7.1

Overall

8.0

Entertainment

7.1

Crew

8.5

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
United Airlines
7.4
Good
8,858 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Comfort

7.8

Food

7.1

Overall

8.0

Entertainment

7.1

Crew

8.5

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
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Comfort

7.8

Food

7.1

Overall

8.0

Entertainment

7.1

Crew

8.5

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 United Airlines is currently your cheapest option to Seattle, with prices starting at $458. Additional round-trip tickets that might be worth considering are offered by Southwest and American Airlines, with the lowest prices starting at $460 and $461, respectively. United Airlines is 21% 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 Delta, with whom users have recently found tickets for as low as $222. However, be on the lookout for offers from American Airlines and United 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 $391). 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
Ocean Shores
Lacey
Leavenworth
Federal Way
Lynnwood
Olympia
Shoreline
Puyallup
Cle Elum
Centralia
Kent
Kirkland
Aberdeen
Renton
Shelton
Silverdale

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
Liberia to Portland flights
San José to Spokane 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 July 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$410Average$513FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$439Average$564FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$441Average$598FlexibilityNo cancel feeOn-time71%
Alaska AirlinesCheapest$508Average$690FlexibilityNo cancel feeOn-time75%

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