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Cheap flights from San José to Seattle from $229

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from San José to Seattle departing on 7/5. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Find the cheapest flights from San José to Seattle

Cheap round-trip flights

Enter your travel dates to find the best prices.
Southwest Logo
12:35 pm - 10:45 pm
SJO
-
SEA
11h 10m
1 stop
Southwest Logo
8:30 pm - 6:25 am
SEA
-
SJO
8h 55m
1 stop
$574Southwest
Wed, Oct 14 - Sun, Oct 18
Multiple Airlines Logo
7:45 am - 9:54 pm
SJO
-
SEA
15h 09m
1 stop
Multiple Airlines Logo
1:59 pm - 8:30 am
SEA
-
SJO
17h 31m
2 stops
$575Multiple Airlines
Fri, Oct 16 - Wed, Oct 21
Southwest Logo
1:20 pm - 1:15 am
SJO
-
SEA
13h 55m
1 stop
Southwest Logo
9:25 pm - 12:20 pm
SEA
-
SJO
12h 55m
2 stops
$578Southwest
Fri, Nov 6 - Mon, Nov 9
Multiple Airlines Logo
5:45 am - 8:05 pm
SJO
-
SEA
16h 20m
1 stop
Multiple Airlines Logo
6:00 am - 11:15 pm
SEA
-
SJO
15h 15m
1 stop
$582Multiple Airlines
Sun, Nov 1 - Fri, Nov 6
Multiple Airlines Logo
7:45 am - 10:00 pm
SJO
-
SEA
15h 15m
1 stop
Multiple Airlines Logo
7:26 am - 11:15 pm
SEA
-
SJO
14h 49m
2 stops
$584Multiple Airlines
Wed, Jul 22 - Sat, Aug 1
Multiple Airlines Logo
4:35 pm - 10:35 am
SJO
-
SEA
19h 00m
1 stop
Multiple Airlines Logo
9:09 pm - 11:15 pm
SEA
-
SJO
25h 06m
1 stop
$587Multiple Airlines
Fri, Oct 2 - Fri, Oct 23
Multiple Airlines Logo
5:45 am - 6:48 pm
SJO
-
SEA
14h 03m
1 stop
Multiple Airlines Logo
6:28 am - 11:15 pm
SEA
-
SJO
15h 47m
1 stop
$590Multiple Airlines
Thu, Oct 22 - Wed, Oct 28
Multiple Airlines Logo
7:45 am - 9:56 pm
SJO
-
SEA
16h 11m
1 stop
Multiple Airlines Logo
8:00 am - 11:15 pm
SEA
-
SJO
13h 15m
2 stops
$593Multiple Airlines
Tue, Nov 24 - Thu, Dec 3
Multiple Airlines Logo
4:35 pm - 4:11 pm
SJO
-
SEA
24h 36m
1 stop
Multiple Airlines Logo
7:00 am - 8:30 am
SEA
-
SJO
24h 30m
1 stop
$596Multiple Airlines
Wed, Sep 23 - Sun, Sep 27
JetBlue Logo
1:25 pm - 11:59 pm
SJO
-
SEA
11h 34m
1 stop
JetBlue Logo
10:35 pm - 11:54 am
SEA
-
SJO
12h 19m
1 stop
$601JetBlue
Sat, Sep 19 - Thu, Oct 1

Southwest flights from San José to Seattle

Our best Southwest deals on San José to Seattle flight tickets
Southwest
Oct 14
SJO12:35 pmSan José Juan Santamaria Intl
11h 10m
1 stop
SEA10:45 pmSeattle/Tacoma Intl
Oct 18
SEA8:30 pmSeattle/Tacoma Intl
8h 55m
1 stop
SJO6:25 amSan José Juan Santamaria Intl
$574
Southwest
Nov 6
SJO1:20 pmSan José Juan Santamaria Intl
13h 55m
1 stop
SEA1:15 amSeattle/Tacoma Intl
Nov 9
SEA9:25 pmSeattle/Tacoma Intl
12h 55m
2 stops
SJO12:20 pmSan José Juan Santamaria Intl
$578
Southwest
Aug 28
SJO9:00 amSan José Juan Santamaria Intl
12h 45m
2 stops
SEA8:45 pmSeattle/Tacoma Intl
Sep 11
SEA6:15 pmSeattle/Tacoma Intl
17h 00m
2 stops
SJO12:15 pmSan José Juan Santamaria Intl
$618

Delta flights from San José to Seattle

Our best Delta deals on San José to Seattle flight tickets
Delta
Oct 22
SJO1:23 pmSan José Juan Santamaria Intl
11h 46m
1 stop
SEA12:09 amSeattle/Tacoma Intl
Nov 3
SEA11:35 pmSeattle/Tacoma Intl
11h 23m
1 stop
SJO12:58 pmSan José Juan Santamaria Intl
$632
Delta
Oct 22
SJO1:23 pmSan José Juan Santamaria Intl
11h 46m
1 stop
SEA12:09 amSeattle/Tacoma Intl
Nov 3
SEA11:35 pmSeattle/Tacoma Intl
11h 23m
1 stop
SJO12:58 pmSan José Juan Santamaria Intl
$653

momondo 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, momondo users made 832,500 searches. Data last updated June 6, 2026.
Use the filters below to find and compare flights from San José to Seattle that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

San JoséSeattle

SJO - SEA

SJOSEA

San José Juan Santamaria Intl

Wed 10/14

12:35 pm-10:45 pm

1 stop11h 10m

Seattle/Tacoma Intl

Sun 10/18

8:30 pm-6:25 am

1 stop8h 55m

$574

San JoséSeattle

SJO - SEA

SJOSEA

San José Juan Santamaria Intl

Fri 10/16

7:45 am-9:54 pm

1 stop15h 09m

Seattle/Tacoma Intl

Wed 10/21

1:59 pm-8:30 am

2 stops17h 31m

$575

San JoséSeattle

SJO - SEA

SJOSEA

San José Juan Santamaria Intl

Fri 11/6

1:20 pm-1:15 am

1 stop13h 55m

Seattle/Tacoma Intl

Mon 11/9

9:25 pm-12:20 pm

2 stops12h 55m

$578

San JoséSeattle

SJO - SEA

SJOSEA

San José Juan Santamaria Intl

Sun 11/1

5:45 am-8:05 pm

1 stop16h 20m

Seattle/Tacoma Intl

Fri 11/6

6:00 am-11:15 pm

1 stop15h 15m

$582

San JoséSeattle

SJO - SEA

SJOSEA

San José Juan Santamaria Intl

Wed 7/22

7:45 am-10:00 pm

1 stop15h 15m

Seattle/Tacoma Intl

Sat 8/1

7:26 am-11:15 pm

2 stops14h 49m

$584

San JoséSeattle

SJO - SEA

SJOSEA

San José Juan Santamaria Intl

Fri 10/2

4:35 pm-10:35 am

1 stop19h 00m

Seattle/Tacoma Intl

Fri 10/23

9:09 pm-11:15 pm

1 stop25h 06m

$587

San JoséSeattle

SJO - SEA

SJOSEA

San José Juan Santamaria Intl

Thu 10/22

5:45 am-6:48 pm

1 stop14h 03m

Seattle/Tacoma Intl

Wed 10/28

6:28 am-11:15 pm

1 stop15h 47m

$590

San JoséSeattle

SJO - SEA

SJOSEA

San José Juan Santamaria Intl

Tue 11/24

7:45 am-9:56 pm

1 stop16h 11m

Seattle/Tacoma Intl

Thu 12/3

8:00 am-11:15 pm

2 stops13h 15m

$593

San JoséSeattle

SJO - SEA

SJOSEA

San José Juan Santamaria Intl

Wed 9/23

4:35 pm-4:11 pm

1 stop24h 36m

Seattle/Tacoma Intl

Sun 9/27

7:00 am-8:30 am

1 stop24h 30m

$596

San JoséSeattle

SJO - SEA

SJOSEA

San José Juan Santamaria Intl

Sat 9/19

1:25 pm-11:59 pm

1 stop11h 34m

Seattle/Tacoma Intl

Thu 10/1

10:35 pm-11:54 am

1 stop12h 19m

$601

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Seattle from

How to get the cheapest flight ticket from San José to Seattle

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between San José and Seattle?

What is the cheapest month to fly to Seattle?

In general, October is the cheapest month to fly from San José to Seattle. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $448. If you don’t want to visit Seattle in October, then you should wait until September to fly from San José, when ticket prices are also cheap, with an average price of $491.

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

You are more likely to see cheaper flights to Seattle from San José when booking weeks ahead of your departure date. In general, you can expect to find flights to Seattle for around $561 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Seattle from San José for as low as $477 on momondo.

Can stopping save me money on San José to Seattle flights?

You could potentially save up to 11% on your flight if you consider stops on a San José to Seattle flight.

How have San José to Seattle flight prices changed over time?

As of June 2026, prices for San José to Seattle flights are approximately 12% cheaper when compared to flights at the same time last year.

When to book flights from San José to Seattle

Are you open to changing your travel dates? Check out the ideal times to fly from San José to Seattle according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap San José to Seattle (SJO to SEA) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from San José to Seattle

Fastest flight time

11h 40m

Direct flights

None
The fastest flight from San José to Seattle takes 11h 40m
There are no direct flights from San José to Seattle. There are no popular flight routes from San José to Seattle.
Search flight deals

Frequently asked questions about flying from San José to Seattle

  • How far is San José Juan Santamaria Intl to Seattle/Tacoma Intl by plane?

    San José Juan Santamaria Intl and Seattle/Tacoma Intl are 3420.5 mi apart from one another. 11h 40m is a normal flight duration for this route.

  • When did momondo last update prices for flights from San José Juan Santamaria Intl Airport to Seattle/Tacoma Intl Airport?

    Prices for flights from San José Juan Santamaria Intl Airport to Seattle/Tacoma Intl Airport refresh daily.

  • How many operators does momondo search for flights from San José Juan Santamaria Intl Airport to Seattle/Tacoma Intl Airport?

  • How old do you have to be to fly from San José Juan Santamaria Intl Airport to Seattle/Tacoma Intl Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from San José Juan Santamaria Intl Airport to Seattle/Tacoma Intl Airport.

  • What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?

    The travel and health documents required for your trip to Seattle/Tacoma Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Seattle/Tacoma Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular plane model from San José to Seattle?

  • What is the most popular airline from San José to Seattle?

Best airlines flying from San José to Seattle

Compare and see reviews for airlines that fly from San José to Seattle with momondo
Airline
Rating
Free Cancellation
Price
American AirlinesPriceFrom $376Free CancellationRating
7.1
11,652 reviews
Search American Airlines flights
United AirlinesPriceFrom $426Free CancellationRating
7.4
9,780 reviews
Search United Airlines flights
SouthwestPriceFrom $440Free CancellationRating
8.0
4,256 reviews
Search Southwest flights
Alaska AirlinesPriceFrom $460Free CancellationRating
7.9
12,469 reviews
Search Alaska Airlines flights

Traveling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
Tacoma
Leavenworth
SeaTac
Ocean Shores
Renton
Olympia
Lynnwood
Redmond
Kent
Lakewood
Tukwila
Puyallup
Marysville
Cle Elum
Federal Way
Fife
Centralia
Shoreline
Westport
Tumwater

Why use momondo?

Why should I use momondo to find a flight deal from San José to Seattle?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from San José to Seattle. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from San José to Seattle with flexible booking policies on momondo?

momondo does allow users to show only those flights to Seattle from San José which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from San José to Seattle?

Once all potential San José to Seattle flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from San José to Seattle right now. Can momondo alert me if prices change?

Yes. momondo can track prices for San José to Seattle flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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