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Cheap flights from San José to Seattle from $275

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.
American Airlines Logo
6:00 am - 11:59 pmSJO  San José Juan Santamaria Intl-SEA Seattle/Tacoma Intl
18h 59m1 stop Miami
American Airlines Logo
6:00 am - 8:21 pmSEA  Seattle/Tacoma Intl-SJO San José Juan Santamaria Intl
13h 21m2 stops Charlotte Douglas Miami
$556American Airlines
Sun, Oct 11 - Fri, Oct 30
United Airlines Logo
8:45 am - 9:01 pmSJO  San José Juan Santamaria Intl-SEA Seattle/Tacoma Intl
13h 16m1 stop San Francisco
United Airlines Logo
4:35 pm - 7:37 pmSEA  Seattle/Tacoma Intl-SJO San José Juan Santamaria Intl
26h 02m2 stops Los Angeles Houston George Bush Intcntl
$556United Airlines
Mon, Oct 5 - Mon, Oct 12
Delta Logo
8:40 am - 6:53 pmSJO  San José Juan Santamaria Intl-SEA Seattle/Tacoma Intl
12h 13m1 stop Los Angeles
Delta Logo
5:59 pm - 7:15 amSEA  Seattle/Tacoma Intl-SJO San José Juan Santamaria Intl
11h 16m1 stop Los Angeles
$556Delta
Tue, Dec 22 - Thu, Dec 31
United Airlines Logo
9:40 am - 8:47 pmSJO  San José Juan Santamaria Intl-SEA Seattle/Tacoma Intl
13h 07m1 stop San Francisco
United Airlines Logo
7:35 pm - 11:25 amSEA  Seattle/Tacoma Intl-SJO San José Juan Santamaria Intl
13h 50m2 stops San Francisco Houston George Bush Intcntl
$556United Airlines
Sun, Nov 1 - Sun, Nov 8
American Airlines Logo
6:00 am - 11:59 pmSJO  San José Juan Santamaria Intl-SEA Seattle/Tacoma Intl
18h 59m1 stop Miami
American Airlines Logo
3:45 pm - 2:00 pmSEA  Seattle/Tacoma Intl-SJO San José Juan Santamaria Intl
21h 15m1 stop Dallas/Fort Worth
$558American Airlines
Fri, Oct 23 - Wed, Oct 28
Multiple Airlines Logo
7:00 am - 9:54 pmSJO  San José Juan Santamaria Intl-SEA Seattle/Tacoma Intl
16h 54m1 stop Miami
Multiple Airlines Logo
7:05 am - 8:35 amSEA  Seattle/Tacoma Intl-SJO San José Juan Santamaria Intl
23h 30m1 stop New York John F Kennedy Intl
$565Multiple Airlines
Thu, Nov 19 - Fri, Dec 4
Southwest Logo
1:30 pm - 1:00 amSJO  San José Juan Santamaria Intl-SEA Seattle/Tacoma Intl
12h 30m2 stops Houston Hobby Las Vegas Harry Reid Intl
Southwest Logo
3:00 pm - 12:35 pmSEA  Seattle/Tacoma Intl-SJO San José Juan Santamaria Intl
20h 35m2 stops Phoenix Sky Harbor Intl Orlando
$578Southwest
Fri, Oct 23 - Wed, Oct 28
Southwest Logo
2:45 pm - 11:05 pmSJO  San José Juan Santamaria Intl-SEA Seattle/Tacoma Intl
10h 20m1 stop Denver Intl
Southwest Logo
1:00 pm - 1:15 pmSEA  Seattle/Tacoma Intl-SJO San José Juan Santamaria Intl
22h 15m2 stops Phoenix Sky Harbor Intl Orlando
$639Southwest
Sat, Nov 21 - Thu, Dec 3
Alaska Airlines Logo
1:23 am - 5:56 pmSJO  San José Juan Santamaria Intl-SEA Seattle/Tacoma Intl
18h 33m1 stop Los Angeles
Alaska Airlines Logo
11:10 pm - 11:57 pmSEA  Seattle/Tacoma Intl-SJO San José Juan Santamaria Intl
46h 47m2 stops Portland Los Angeles
$777Alaska Airlines
Mon, Feb 1 - Fri, Feb 12
Alaska Airlines Logo
1:23 am - 6:40 pmSJO  San José Juan Santamaria Intl-SEA Seattle/Tacoma Intl
19h 17m2 stops Los Angeles Portland
Alaska Airlines Logo
11:10 pm - 11:57 pmSEA  Seattle/Tacoma Intl-SJO San José Juan Santamaria Intl
46h 47m2 stops Portland Los Angeles
$786Alaska Airlines
Mon, Feb 1 - Fri, Feb 12

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American Airlines flights from San José to Seattle

Our best American Airlines deals on San José to Seattle flight tickets
American Airlines
Oct 1
SJO1:00 pmSan José Juan Santamaria Intl
11h 09m
1 stop
SEA11:09 pmSeattle/Tacoma Intl
Oct 25
SEA5:41 pmSeattle/Tacoma Intl
19h 19m
1 stop
SJO2:00 pmSan José Juan Santamaria Intl
$546
American Airlines
Oct 23
SJO6:00 amSan José Juan Santamaria Intl
18h 59m
1 stop
SEA11:59 pmSeattle/Tacoma Intl
Oct 28
SEA3:45 pmSeattle/Tacoma Intl
21h 15m
1 stop
SJO2:00 pmSan José Juan Santamaria Intl
$558
American Airlines
Oct 10
SJO6:00 amSan José Juan Santamaria Intl
18h 59m
1 stop
SEA11:59 pmSeattle/Tacoma Intl
Oct 24
SEA3:45 pmSeattle/Tacoma Intl
21h 15m
1 stop
SJO2:00 pmSan José Juan Santamaria Intl
$566

United Airlines flights from San José to Seattle

Our best United Airlines deals on San José to Seattle flight tickets
United Airlines
Oct 24
SJO8:45 amSan José Juan Santamaria Intl
13h 18m
1 stop
SEA9:03 pmSeattle/Tacoma Intl
Oct 31
SEA3:35 pmSeattle/Tacoma Intl
12h 50m
2 stops
SJO5:25 amSan José Juan Santamaria Intl
$556
United Airlines
Oct 1
SJO8:45 amSan José Juan Santamaria Intl
17h 30m
1 stop
SEA1:15 amSeattle/Tacoma Intl
Oct 7
SEA1:19 pmSeattle/Tacoma Intl
16h 56m
1 stop
SJO7:15 amSan José Juan Santamaria Intl
$565
United Airlines
Oct 1
SJO8:45 amSan José Juan Santamaria Intl
17h 30m
1 stop
SEA1:15 amSeattle/Tacoma Intl
Oct 21
SEA6:30 amSeattle/Tacoma Intl
28h 51m
2 stops
SJO12:21 pmSan José Juan Santamaria Intl
$570

momondo Fare Finder

 
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 San José Juan Santamaria Intl - SEA Seattle/Tacoma Intl

SJOSEA

San José Juan Santamaria Intl

Sun 10/11

6:00 am-11:59 pm

1 stop18h 59m

Seattle/Tacoma Intl

Fri 10/30

6:00 am-8:21 pm

2 stops13h 21m

$556

San JoséSeattle

SJO San José Juan Santamaria Intl - SEA Seattle/Tacoma Intl

SJOSEA

San José Juan Santamaria Intl

Mon 10/5

8:45 am-9:01 pm

1 stop13h 16m

Seattle/Tacoma Intl

Mon 10/12

4:35 pm-7:37 pm

2 stops26h 02m

$556
Quickest round-trip

San JoséSeattle

SJO San José Juan Santamaria Intl - SEA Seattle/Tacoma Intl

SJOSEA

San José Juan Santamaria Intl

Tue 12/22

8:40 am-6:53 pm

1 stop12h 13m

Seattle/Tacoma Intl

Thu 12/31

5:59 pm-7:15 am

1 stop11h 16m

$556

San JoséSeattle

SJO San José Juan Santamaria Intl - SEA Seattle/Tacoma Intl

SJOSEA

San José Juan Santamaria Intl

Sun 11/1

9:40 am-8:47 pm

1 stop13h 07m

Seattle/Tacoma Intl

Sun 11/8

7:35 pm-11:25 am

2 stops13h 50m

$556

San JoséSeattle

SJO San José Juan Santamaria Intl - SEA Seattle/Tacoma Intl

SJOSEA

San José Juan Santamaria Intl

Fri 10/23

6:00 am-11:59 pm

1 stop18h 59m

Seattle/Tacoma Intl

Wed 10/28

3:45 pm-2:00 pm

1 stop21h 15m

$558

San JoséSeattle

SJO San José Juan Santamaria Intl - SEA Seattle/Tacoma Intl

SJOSEA

San José Juan Santamaria Intl

Thu 11/19

7:00 am-9:54 pm

1 stop16h 54m

Seattle/Tacoma Intl

Fri 12/4

7:05 am-8:35 am

1 stop23h 30m

$565

San JoséSeattle

SJO San José Juan Santamaria Intl - SEA Seattle/Tacoma Intl

SJOSEA

San José Juan Santamaria Intl

Fri 10/23

1:30 pm-1:00 am

2 stops12h 30m

Seattle/Tacoma Intl

Wed 10/28

3:00 pm-12:35 pm

2 stops20h 35m

$578

San JoséSeattle

SJO San José Juan Santamaria Intl - SEA Seattle/Tacoma Intl

SJOSEA

San José Juan Santamaria Intl

Sat 11/21

2:45 pm-11:05 pm

1 stop10h 20m

Seattle/Tacoma Intl

Thu 12/3

1:00 pm-1:15 pm

2 stops22h 15m

$639

San JoséSeattle

SJO San José Juan Santamaria Intl - SEA Seattle/Tacoma Intl

SJOSEA

San José Juan Santamaria Intl

Mon 2/1

1:23 am-5:56 pm

1 stop18h 33m

Seattle/Tacoma Intl

Fri 2/12

11:10 pm-11:57 pm

2 stops46h 47m

$777

San JoséSeattle

SJO San José Juan Santamaria Intl - SEA Seattle/Tacoma Intl

SJOSEA

San José Juan Santamaria Intl

Mon 2/1

1:23 am-6:40 pm

2 stops19h 17m

Seattle/Tacoma Intl

Fri 2/12

11:10 pm-11:57 pm

2 stops46h 47m

$786

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 typical for flights on this route.

Typical prices usually range from $531 to $692.
The lowest price recently found on this route was $556.

What is the cheapest month to fly to Seattle?

In general, February 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 $549. If you don’t want to visit Seattle in February, then you should wait until October to fly from San José, when ticket prices are also cheap, with an average price of $556.

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 $614 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 2% 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 September 2026, prices for San José to Seattle flights are approximately 12% more expensive 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

Best Price Found

$275

Fastest flight time

10h 13m

Direct flights

None
The best one-way flight to Seattle from San José in the past 72 hours is $275. The best round-trip flight deal from San José to Seattle found on momondo in the last 72 hours is $556.
The fastest flight from San José to Seattle takes 10h 13m
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. 10h 13m 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 $407Free CancellationRating
7.0
12,085 reviews
Search American Airlines flights
Alaska AirlinesPriceFrom $464Free CancellationRating
7.9
12,966 reviews
Search Alaska Airlines flights
United AirlinesPriceFrom $503Free CancellationRating
7.4
10,236 reviews
Search United Airlines flights
SouthwestPriceFrom $511Free CancellationRating
8.0
4,200 reviews
Search Southwest 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
Kent
Redmond
Lakewood
Federal Way
Fife
Tukwila
Puyallup
Lynnwood
Cle Elum
Marysville
Lacey
Centralia
Kirkland
Shoreline

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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