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Cheap flights from Seattle to San José from C$ 302

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 30/3. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — SJO
8 Mar — 15 Mar1
1 adult

Cheap flight deals from Seattle to San José

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to San José (SJO). 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 3 March 2025.

Round-trip from

C$ 697

One-way from

C$ 302

Popular in

December

Cheapest in

May

Average price

C$ 1,044
United Airlines
  • United Airlines
  • 22/4-29/4
  • 4 total stops
  • 30h 51m total
  • Seattle to San José
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Delta
  • Delta
  • 30/3
  • 1 total stop
  • 12h 26m total
  • Seattle to San José
Search Deals
Highest demand for flights based on searches. 7% potential increase in price (C$ 108 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (C$ 50 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2025
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Find flight deals from Seattle to San José

Cheapest flights from Seattle to San José
Explore the most affordable flight options available from Seattle to San José. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 3 March 2025.

Tue 22/45:05 p.m.SEA - SJO
2 stops16h 06mUnited Airlines
Tue 29/411:13 a.m.SJO - SEA
2 stops14h 45mUnited Airlines
Deal found 3/3C$ 697
Sun 11/57:00 a.m.SEA - SJO
1 stop15h 52mAlaska Airlines
Mon 9/61:06 a.m.SJO - SEA
2 stops15h 20mAlaska Airlines
Deal found 1/3C$ 722
Sun 13/411:30 p.m.SEA - SJO
1 stop11h 25mDelta
Wed 30/47:25 a.m.SJO - SEA
1 stop14h 20mDelta
Deal found 2/3C$ 746
Mon 17/310:01 p.m.SEA - SJO
1 stop13h 53mAmerican Airlines
Mon 24/311:59 p.m.SJO - SEA
1 stop10h 34mAmerican Airlines
Deal found 3/3C$ 798
Wed 16/45:00 a.m.SEA - SJO
2 stops13h 40mSouthwest
Sun 27/48:45 a.m.SJO - SEA
2 stops16h 40mSouthwest
Deal found 2/3C$ 837
Thu 19/65:14 p.m.SEA - SJO
2 stops18h 41mCopa Airlines
Tue 24/66:07 p.m.SJO - SEA
2 stops28h 51mCopa Airlines
Deal found 2/3C$ 970
Sat 1/36:04 p.m.SEA - SJO
2 stops23h 23mMultiple Airlines
Fri 7/312:59 a.m.SJO - SEA
2 stops19h 55mMultiple Airlines
Deal found 1/3C$ 980

Find flights from Seattle to San José within your budget

Customize your flight search to find flights from Seattle to San José 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 629,999 searches. Data last updated 3 March 2025.

Fly from

Seattle

Fly to

San José

Route

Depart

Return

Price

SeattleSan José

SEA - SJO

SEASJO

Seattle/Tacoma Intl

Tue 22/4

5:05 p.m.-10:11 a.m.

2 stops16h 06m

San José Juan Santamaria Intl

Tue 29/4

11:13 a.m.-12:58 a.m.

2 stops14h 45m

C$ 697

SeattleSan José

SEA - SJO

SEASJO

Seattle/Tacoma Intl

Mon 12/5

2:00 p.m.-11:52 p.m.

1 stop8h 52m

San José Juan Santamaria Intl

Sun 8/6

1:06 a.m.-8:56 a.m.

1 stop32h 50m

C$ 735

SeattleSan José

SEA - SJO

SEASJO

Seattle/Tacoma Intl

Mon 17/3

10:01 p.m.-12:54 p.m.

1 stop13h 53m

San José Juan Santamaria Intl

Mon 24/3

11:59 p.m.-9:33 a.m.

1 stop10h 34m

C$ 798

SeattleSan José

SEA - SJO

SEASJO

Seattle/Tacoma Intl

Fri 15/8

5:59 p.m.-5:56 a.m.

1 stop10h 57m

San José Juan Santamaria Intl

Sat 23/8

7:26 a.m.-8:22 p.m.

1 stop13h 56m

C$ 800

SeattleSan José

SEA - SJO

SEASJO

Seattle/Tacoma Intl

Thu 14/8

5:00 a.m.-6:55 p.m.

2 stops12h 55m

San José Juan Santamaria Intl

Mon 25/8

8:50 a.m.-12:05 a.m.

2 stops16h 15m

C$ 817

SeattleSan José

SEA - SJO

SEASJO

Seattle/Tacoma Intl

Thu 19/6

5:14 p.m.-1:20 p.m.

2 stops19h 06m

San José Juan Santamaria Intl

Tue 24/6

4:10 a.m.-9:58 p.m.

2 stops18h 48m

C$ 970

SeattleSan José

SEA - SJO

SEASJO

Seattle/Tacoma Intl

Mon 17/3

2:02 p.m.-11:50 p.m.

3 stops32h 48m

C$ 318

SeattleSan José

SEA - SJO

SEASJO

Seattle/Tacoma Intl

Wed 19/3

1:56 p.m.-12:12 a.m.

1 stop9h 16m

C$ 321

SeattleSan José

SEA - SJO

SEASJO

Seattle/Tacoma Intl

Mon 17/3

10:01 p.m.-12:54 p.m.

1 stop13h 53m

C$ 375

SeattleSan José

SEA - SJO

SEASJO

Seattle/Tacoma Intl

Sun 20/4

11:59 p.m.-10:11 a.m.

1 stop9h 12m

C$ 414

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/3

Showing 1-10 of 11 results
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Best time to book a flight from Seattle to San José

Have a flexible travel schedule? Discover the best time to fly to San José from Seattle 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.

Travel insights for flights from Seattle to San José

Get recent, data-driven insights about flights from Seattle to San José including ideal travel times, pricing trends, and more.

How far ahead should I book a flight from Seattle to San José, San José Province?

Use this chart to determine the optimal time to book a round-trip flight from Seattle to San José. Price data was last updated on 28 February 2025.

To ensure you get the cheapest price possible for a flight from Seattle to San José, San José Province, you should look to book at least 36 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from Seattle to San José, San José Province?

Currently, September is the cheapest month in which you can book a flight from Seattle to San José, San José Province (average of C$ 486). Flying from Seattle to San José, San José Province in July is currently the most expensive (average of C$ 685). 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 SEA to SJO?

Find hourly flight availability from Seattle to San José. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 3 March 2025.

When flying from Seattle to San José, San José Province, the time of day you fly usually plays a role in the price. Save by searching for a flight at noon, which can drop the price by up to 17% versus a flight in the morning.

Rainfall in San José by month

Plan your trip to San José by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in San José, San José Province ranges from 0.0 - 300.0 mm per month. September is typically the wettest month, when rainfall can reach 300.0 mm. February is typically the driest time to visit San José, San José Province when rainfall is around 0.0 mm.

Temperature in San José by month

Plan your trip to San José by taking into account the average temperature totals by month.

If weather is an important factor for your trip to San José, San José Province, use this chart to help with planning. For those seeking warmer temperatures, April is the ideal time of year to visit, when temperatures reach an average of 21.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 18.0 C).

Reviews of airlines servicing San José

Get insights into the airlines that provide service to San José. 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 San José. Reviews last updated 3 March 2025.
Peruse reviews from past customers who have flown with Southwest, Alaska Airlines and Delta from Seattle to San José to help guide your decision. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
4,333 reviews
Check prices

Entertainment

7.6

Food

7.1

Boarding

8.2

Crew

8.7

Overall

8.1

Comfort

8.1

Reviews

1 / 20

8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.

Southwest
8.1
Very good
4,333 reviews
Southwest
8.1
Very good
4,333 reviews
Check prices

Entertainment

7.6

Food

7.1

Boarding

8.2

Crew

8.7

Overall

8.1

Comfort

8.1

Reviews

1 / 20

8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.

Alaska Airlines
8.0
Very good
9,710 reviews
Southwest
8.1
Very good
4,333 reviews
Check prices

Entertainment

7.6

Food

7.1

Boarding

8.2

Crew

8.7

Overall

8.1

Comfort

8.1

Reviews

1 / 20

8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.

Delta
8.0
Very good
8,068 reviews
Southwest
8.1
Very good
4,333 reviews
Check prices

Entertainment

7.6

Food

7.1

Boarding

8.2

Crew

8.7

Overall

8.1

Comfort

8.1

Reviews

1 / 20

8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.

Copa Airlines
7.6
Good
1,464 reviews
Southwest
8.1
Very good
4,333 reviews
Check prices

Entertainment

7.6

Food

7.1

Boarding

8.2

Crew

8.7

Overall

8.1

Comfort

8.1

Reviews

1 / 20

8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.

United Airlines
7.4
Good
8,679 reviews
Southwest
8.1
Very good
4,333 reviews
Check prices

Entertainment

7.6

Food

7.1

Boarding

8.2

Crew

8.7

Overall

8.1

Comfort

8.1

Reviews

1 / 20

8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.

Related info for your journey

Find useful and relevant information for your journey from Seattle to San José. 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 Seattle to San José, San José Province round-trip?

    Currently priced at C$ 697, United Airlines will fly you from Seattle to San José, San José Province and back. In addition to United Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Alaska Airlines and American Airlines - these airlines can fly you to your destination from C$ 735 and C$ 798, respectively. United Airlines is priced at 29% lower than the current average price of a flight leaving 3 months from now.

  • What are the cheapest airlines to fly from Seattle to San José, San José Province one-way?

    The cheapest airline one-way is Delta, with whom users have recently found tickets for as low as C$ 302. However, be on the lookout for offers from Alaska Airlines and American Airlines, as they are both options that can get you from Seattle to San José, San José Province for a low price.

  • Can I find deals for flights from Seattle to San José that include hotel bookings?

    Yes. In addition to deals on Seattle to San José flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Seattle to San José?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Seattle to San José.

  • Can I find deals for business class flights from Seattle to San José?

    Yes. Cheapflights offers flight deals from Seattle to San José 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 Seattle to San José, San José Province?

    Currently, September is the cheapest month in which you can book a flight from Seattle to San José, San José Province (average of C$ 486). Flying from Seattle to San José, San José Province in July is currently the most expensive (average of C$ 685). 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

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Alternative routes for Seattle to San José

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Seattle to Liberia flights

Top 2 airlines flying from Seattle to San José

Discover the top 2 airlines that operate flights from Seattle to San José. 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 629,999 searches. Data last updated 3 March 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapestC$ 599AverageC$ 718FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
Alaska AirlinesCheapestC$ 703AverageC$ 853FlexibilityNo cancel feeOn-time75%
Search Alaska Airlines flights

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