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Cheap flights from San José to Seattle from $282

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 12/8. 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

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from San José to Seattle

Cheap round-trip flights

Enter your travel dates to find the best prices.
Southwest Logo
2:10 pm - 1:15 am
SJO
-
SEA
13h 05m
2 stops
Southwest Logo
9:25 pm - 12:20 pm
SEA
-
SJO
12h 55m
2 stops
$551Southwest
Mon, Nov 2 - Sun, Nov 8
Multiple Airlines Logo
5:45 am - 10:59 pm
SJO
-
SEA
18h 14m
1 stop
Multiple Airlines Logo
6:49 am - 11:15 pm
SEA
-
SJO
15h 26m
1 stop
$552Multiple Airlines
Sat, Sep 12 - Sat, Sep 19
American Airlines Logo
1:00 pm - 11:11 am
SJO
-
SEA
23h 11m
1 stop
American Airlines Logo
8:50 pm - 12:59 pm
SEA
-
SJO
15h 09m
1 stop
$555American Airlines
Fri, Sep 18 - Mon, Sep 28
Multiple Airlines Logo
4:35 pm - 11:29 pm
SJO
-
SEA
31h 54m
1 stop
Multiple Airlines Logo
6:49 am - 11:15 pm
SEA
-
SJO
15h 26m
1 stop
$555Multiple Airlines
Sun, Aug 23 - Thu, Aug 27
United Airlines Logo
8:45 am - 9:23 pm
SJO
-
SEA
14h 38m
2 stops
United Airlines Logo
8:40 pm - 8:32 am
SEA
-
SJO
9h 52m
1 stop
$556United Airlines
Tue, Nov 3 - Mon, Nov 9
United Airlines Logo
9:40 am - 6:31 pm
SJO
-
SEA
10h 51m
1 stop
United Airlines Logo
7:35 pm - 8:32 am
SEA
-
SJO
10h 57m
1 stop
$556United Airlines
Tue, Nov 3 - Sun, Nov 8
American Airlines Logo
1:00 pm - 11:11 am
SJO
-
SEA
23h 11m
1 stop
American Airlines Logo
8:50 pm - 12:59 pm
SEA
-
SJO
15h 09m
1 stop
$557American Airlines
Fri, Sep 18 - Mon, Sep 28
American Airlines Logo
6:00 am - 11:29 pm
SJO
-
SEA
18h 29m
2 stops
American Airlines Logo
5:34 pm - 1:57 pm
SEA
-
SJO
19h 23m
1 stop
$564American Airlines
Sat, Sep 5 - Sun, Sep 13
Alaska Airlines Logo
2:00 am - 11:52 am
SJO
-
SEA
10h 52m
1 stop
Alaska Airlines Logo
9:50 am - 11:08 pm
SEA
-
SJO
11h 18m
1 stop
$620Alaska Airlines
Sat, Oct 31 - Sat, Nov 7
Alaska Airlines Logo
1:43 am - 2:42 pm
SJO
-
SEA
14h 59m
1 stop
Alaska Airlines Logo
6:00 am - 11:08 pm
SEA
-
SJO
15h 08m
1 stop
$620Alaska Airlines
Sun, Nov 1 - Sat, Nov 7

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United Airlines flights from San José to Seattle

Our best United Airlines deals on San José to Seattle flight tickets
United Airlines
Sep 2
SJO7:55 amSan José Juan Santamaria Intl
16h 31m
2 stops
SEA11:26 pmSeattle/Tacoma Intl
Sep 13
SEA5:20 pmSeattle/Tacoma Intl
12h 55m
1 stop
SJO7:15 amSan José Juan Santamaria Intl
$556
United Airlines
Sep 11
SJO8:45 amSan José Juan Santamaria Intl
10h 44m
1 stop
SEA6:29 pmSeattle/Tacoma Intl
Nov 10
SEA8:40 pmSeattle/Tacoma Intl
9h 52m
1 stop
SJO8:32 amSan José Juan Santamaria Intl
$564
United Airlines
Sep 10
SJO1:25 pmSan José Juan Santamaria Intl
30h 04m
2 stops
SEA6:29 pmSeattle/Tacoma Intl
Sep 15
SEA5:00 pmSeattle/Tacoma Intl
25h 37m
1 stop
SJO7:37 pmSan José Juan Santamaria Intl
$567

American Airlines flights from San José to Seattle

Our best American Airlines deals on San José to Seattle flight tickets
American Airlines
Sep 18
SJO1:00 pmSan José Juan Santamaria Intl
23h 11m
1 stop
SEA11:11 amSeattle/Tacoma Intl
Sep 28
SEA8:50 pmSeattle/Tacoma Intl
15h 09m
1 stop
SJO12:59 pmSan José Juan Santamaria Intl
$555
American Airlines
Sep 18
SJO1:00 pmSan José Juan Santamaria Intl
23h 11m
1 stop
SEA11:11 amSeattle/Tacoma Intl
Sep 28
SEA8:50 pmSeattle/Tacoma Intl
15h 09m
1 stop
SJO12:59 pmSan José Juan Santamaria Intl
$557
American Airlines
Sep 5
SJO6:00 amSan José Juan Santamaria Intl
18h 29m
2 stops
SEA11:29 pmSeattle/Tacoma Intl
Sep 13
SEA5:34 pmSeattle/Tacoma Intl
19h 23m
1 stop
SJO1:57 pmSan José Juan Santamaria Intl
$574

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 July 27, 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

San JoséSeattle

SJO - SEA

SJOSEA

San José Juan Santamaria Intl

Mon 11/2

2:10 pm-1:15 am

2 stops13h 05m

Seattle/Tacoma Intl

Sun 11/8

9:25 pm-12:20 pm

2 stops12h 55m

$551

San JoséSeattle

SJO - SEA

SJOSEA

San José Juan Santamaria Intl

Sat 9/12

5:45 am-10:59 pm

1 stop18h 14m

Seattle/Tacoma Intl

Sat 9/19

6:49 am-11:15 pm

1 stop15h 26m

$552

San JoséSeattle

SJO - SEA

SJOSEA

San José Juan Santamaria Intl

Fri 9/18

1:00 pm-11:11 am

1 stop23h 11m

Seattle/Tacoma Intl

Mon 9/28

8:50 pm-12:59 pm

1 stop15h 09m

$555

San JoséSeattle

SJO - SEA

SJOSEA

San José Juan Santamaria Intl

Sun 8/23

4:35 pm-11:29 pm

1 stop31h 54m

Seattle/Tacoma Intl

Thu 8/27

6:49 am-11:15 pm

1 stop15h 26m

$555

San JoséSeattle

SJO - SEA

SJOSEA

San José Juan Santamaria Intl

Tue 11/3

8:45 am-9:23 pm

2 stops14h 38m

Seattle/Tacoma Intl

Mon 11/9

8:40 pm-8:32 am

1 stop9h 52m

$556
Quickest round-trip

San JoséSeattle

SJO - SEA

SJOSEA

San José Juan Santamaria Intl

Tue 11/3

9:40 am-6:31 pm

1 stop10h 51m

Seattle/Tacoma Intl

Sun 11/8

7:35 pm-8:32 am

1 stop10h 57m

$556

San JoséSeattle

SJO - SEA

SJOSEA

San José Juan Santamaria Intl

Fri 9/18

1:00 pm-11:11 am

1 stop23h 11m

Seattle/Tacoma Intl

Mon 9/28

8:50 pm-12:59 pm

1 stop15h 09m

$557

San JoséSeattle

SJO - SEA

SJOSEA

San José Juan Santamaria Intl

Sat 9/5

6:00 am-11:29 pm

2 stops18h 29m

Seattle/Tacoma Intl

Sun 9/13

5:34 pm-1:57 pm

1 stop19h 23m

$564

San JoséSeattle

SJO - SEA

SJOSEA

San José Juan Santamaria Intl

Sat 10/31

2:00 am-11:52 am

1 stop10h 52m

Seattle/Tacoma Intl

Sat 11/7

9:50 am-11:08 pm

1 stop11h 18m

$620

San JoséSeattle

SJO - SEA

SJOSEA

San José Juan Santamaria Intl

Sun 11/1

1:43 am-2:42 pm

1 stop14h 59m

Seattle/Tacoma Intl

Sat 11/7

6:00 am-11:08 pm

1 stop15h 08m

$620

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?

Prices are currently low for flights on this route.

Typical prices usually range from $568 to $790.
The lowest price recently found on this route was $552.

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 $492. 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 $525.

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 $587 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 $537 on momondo.

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

You could potentially save up to 3% 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 July 2026, prices for San José to Seattle flights are approximately 4% 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

13h 25m

Direct flights

Mon and Sat

Airports in Seattle

1 airport
The fastest flight from San José to Seattle takes 13h 25m
Direct flights go from San José to Seattle on Monday and Saturday. There are no airlines offering direct flights.
There is 1 airport in Seattle. From San José there are direct flights to Seattle/Tacoma Intl (SEA).
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. 13h 25m 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 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 $368Free CancellationRating
7.1
11,837 reviews
Search American Airlines flights
United AirlinesPriceFrom $452Free CancellationRating
7.4
10,042 reviews
Search United Airlines flights
Alaska AirlinesPriceFrom $464Free CancellationRating
7.9
12,717 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
Fife
Federal Way
Cle Elum
Marysville
Kirkland
Centralia
Shoreline
Lacey

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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