$236+ Cheap flights from Seattle (SEA) to San José (SJO)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/1. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — SJO
Oct 6 — Oct 131
Round-trip
1 adult, Economy
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Find cheap flights from Seattle to San José with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider ’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Seattle to San José
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Best
Last-minute
One-way
Cheapest flights from Seattle to San JoséExplore 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 September 6, 2026.
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 September 6, 2026.
This Southwest deal was found by Cheapflights users on 9/2. 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.
Wed 10/215:50 am -
2 stops12h 50m
Wed 10/281:00 pm -
2 stops11h 55m
Deal found 9/2![Southwest logo]()
$500
This Southwest deal was found by Cheapflights users on 9/2. 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.
Sun 10/185:10 pm -
2 stops18h 25m
Tue 10/271:00 pm -
2 stops11h 55m
Deal found 9/2![Southwest logo]()
$534
This Southwest deal was found by Cheapflights users on 9/2. 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.
Sat 10/176:15 am -
2 stops12h 25m
Sat 10/249:00 am -
2 stops14h 25m
Deal found 9/2![Southwest logo]()
$547
This Southwest deal was found by Cheapflights users on 9/1. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/156:40 am -
2 stops11h 05m
Tue 3/161:55 pm -
2 stops12h 50m
Deal found 9/1![Southwest logo]()
$566
This flugladen.de deal was found by Cheapflights users on 9/6. 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 flugladen.de is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/18:00 am -
1 stop30h 05m
Wed 10/147:45 am -
1 stop15h 14m
Deal found 9/6![Multiple Airlines logo]()
$567
This Southwest deal was found by Cheapflights users on 9/2. 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.
Sat 9/2611:05 pm -
2 stops18h 35m
Sat 10/39:00 am -
2 stops14h 20m
Deal found 9/2![Southwest logo]()
$575
This Trip.com deal was found by Cheapflights users on 9/2. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/188:08 am -
1 stop29h 57m
Sun 10/254:15 pm -
2 stops19h 20m
Deal found 9/2![Multiple Airlines logo]()
$584
This Trip.com deal was found by Cheapflights users on 9/1. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/810:50 pm -
2 stops31h 45m
Wed 12/167:45 am -
1 stop16h 11m
Deal found 9/1![Multiple Airlines logo]()
$585
This Southwest deal was found by Cheapflights users on 9/3. 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.
Sat 10/36:15 am -
2 stops12h 25m
Sat 10/109:00 am -
2 stops13h 45m
Deal found 9/3![Southwest logo]()
$586
Best flights from Seattle to San JoséDiscover carefully curated flight deals from Seattle to San José that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 6, 2026.
Discover carefully curated flight deals from Seattle to San José that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 6, 2026.
This Southwest deal was found by Cheapflights users on 9/4. 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.
Sat 10/246:15 am -
2 stops12h 25m
Tue 10/271:00 pm -
2 stops11h 55m
Deal found 9/4![Southwest logo]()
$566
This United Airlines deal was found by Cheapflights users on 9/1. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/610:56 pm -
1 stop11h 39m
Sat 11/146:40 am -
1 stop11h 32m
Deal found 9/1![United Airlines logo]()
$598
This United Airlines deal was found by Cheapflights users on 9/4. 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.
Sat 10/2411:59 pm -
1 stop11h 23m
Tue 10/277:45 am -
1 stop12h 32m
Deal found 9/4![United Airlines logo]()
$598
This Southwest deal was found by Cheapflights users on 9/1. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/156:40 am -
2 stops11h 05m
Tue 9/229:00 am -
2 stops15h 40m
Deal found 9/1![Southwest logo]()
$601
This United Airlines deal was found by Cheapflights users on 9/1. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/1511:59 pm -
1 stop11h 22m
Tue 3/1611:35 am -
1 stop12h 03m
Deal found 9/1![United Airlines logo]()
$669
This Southwest deal was found by Cheapflights users on 9/1. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/215:30 am -
2 stops12h 15m
Wed 9/239:00 am -
2 stops15h 40m
Deal found 9/1![Southwest logo]()
$714
This United Airlines deal was found by Cheapflights users on 9/5. 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.
Fri 11/64:39 pm -
1 stop11h 46m
Tue 11/109:40 am -
1 stop13h 07m
Deal found 9/5![United Airlines logo]()
$682
This United Airlines deal was found by Cheapflights users on 9/4. 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.
Sat 10/33:18 pm -
1 stop14h 57m
Wed 10/147:55 am -
2 stops18h 20m
Deal found 9/4![United Airlines logo]()
$723
This United Airlines deal was found by Cheapflights users on 9/2. 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.
Tue 9/151:10 pm -
2 stops22h 11m
Fri 9/188:45 am -
1 stop12h 58m
Deal found 9/2![United Airlines logo]()
$723
This United Airlines deal was found by Cheapflights users on 9/5. 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.
Wed 10/213:18 pm -
1 stop14h 57m
Wed 10/281:25 pm -
2 stops23h 55m
Deal found 9/5![United Airlines logo]()
$723
This United Airlines deal was found by Cheapflights users on 9/4. 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.
Thu 10/11:19 pm -
1 stop16h 56m
Wed 10/147:55 am -
2 stops27h 07m
Deal found 9/4![United Airlines logo]()
$723
Last-minute flights from Seattle to San JoséDiscover last-minute flight deals from Seattle to San José. Data last updated September 6, 2026 and is based on user searches.
Discover last-minute flight deals from Seattle to San José. Data last updated September 6, 2026 and is based on user searches.
This Southwest deal was found by Cheapflights users on 9/1. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/158:50 am -
1 stop8h 55m
Thu 10/159:00 am -
2 stops16h 40m
Deal found 9/1![Southwest logo]()
$566
This Southwest deal was found by Cheapflights users on 9/2. 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.
Sat 9/2611:05 pm -
2 stops18h 35m
Sat 10/39:00 am -
2 stops14h 20m
Deal found 9/2![Southwest logo]()
$575
This flugladen.de deal was found by Cheapflights users on 9/6. 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 flugladen.de is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/18:00 am -
1 stop30h 05m
Wed 10/147:45 am -
1 stop15h 14m
Deal found 9/6![Multiple Airlines logo]()
$567
This Southwest deal was found by Cheapflights users on 9/3. 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.
Sat 10/36:15 am -
2 stops12h 25m
Sat 10/109:00 am -
2 stops13h 45m
Deal found 9/3![Southwest logo]()
$586
This Southwest deal was found by Cheapflights users on 9/2. 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.
Sat 10/176:15 am -
2 stops12h 25m
Sat 10/249:00 am -
2 stops14h 25m
Deal found 9/2![Southwest logo]()
$547
This Southwest deal was found by Cheapflights users on 9/2. 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.
Sun 10/185:10 pm -
2 stops18h 25m
Tue 10/271:00 pm -
2 stops11h 55m
Deal found 9/2![Southwest logo]()
$534
This Trip.com deal was found by Cheapflights users on 9/2. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/188:08 am -
1 stop29h 57m
Sun 10/254:15 pm -
2 stops19h 20m
Deal found 9/2![Multiple Airlines logo]()
$584
This Southwest deal was found by Cheapflights users on 9/2. 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.
Wed 10/215:50 am -
2 stops12h 50m
Wed 10/281:00 pm -
2 stops11h 55m
Deal found 9/2![Southwest logo]()
$500
This Delta deal was found by Cheapflights users on 9/4. 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.
Fri 10/2311:59 pm -
1 stop11h 01m
Sat 10/311:25 pm -
1 stop22h 38m
Deal found 9/4![Delta logo]()
$598
One-way flights from Seattle to San JoséSearch for one-way flight options from Seattle to San José. Find affordable one-way fares based on user searches. Data last updated September 6, 2026.
Search for one-way flight options from Seattle to San José. Find affordable one-way fares based on user searches. Data last updated September 6, 2026.
This Southwest deal was found by Cheapflights users on 9/3. 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.
Sun 11/19:25 pm -
2 stops12h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/3![Southwest logo]()
$236
This Southwest deal was found by Cheapflights users on 9/3. 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.
Sun 10/185:10 pm -
2 stops18h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/3![Southwest logo]()
$239
This Southwest deal was found by Cheapflights users on 9/3. 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.
Sat 10/312:10 pm -
2 stops22h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/3![Southwest logo]()
$244
This Southwest deal was found by Cheapflights users on 9/2. 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.
Wed 10/145:35 am -
2 stops13h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/2![Southwest logo]()
$249
This Southwest deal was found by Cheapflights users on 9/2. 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.
Tue 12/12:05 pm -
2 stops21h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/2![Southwest logo]()
$265
This Kiwi.com deal was found by Cheapflights users on 9/5. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/178:09 pm -
2 stops51h 16m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/5![Multiple Airlines logo]()
$277
This Southwest deal was found by Cheapflights users on 9/1. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/156:40 am -
2 stops11h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/1![Southwest logo]()
$278
This American Airlines deal was found by Cheapflights users on 9/2. 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.
Wed 10/145:41 pm -
1 stop19h 19m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/2![American Airlines logo]()
$279
This American Airlines deal was found by Cheapflights users on 9/4. 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.
Tue 10/2011:59 pm -
2 stops13h 01m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/4![American Airlines logo]()
$280
This American Airlines deal was found by Cheapflights users on 9/3. 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.
Sun 10/185:41 pm -
1 stop19h 19m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/3![American Airlines logo]()
$284
This American Airlines deal was found by Cheapflights users on 9/2. 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 10/238:39 pm -
1 stop14h 21m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/2![American Airlines logo]()
$285
This Kiwi.com deal was found by Cheapflights users on 9/2. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/2911:32 am -
3 stops35h 53m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/2![Multiple Airlines logo]()
$287
Find 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 September 6, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $500 (Southwest) |
One-way from | $236 (Southwest) |
Popular in | March |
Cheapest in | October |
Average price | $619 |
Cheapflights Fare Finder
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 7,457,451 searches. Data last updated September 6, 2026.
Use the filters below to find and compare flights from Seattle to San José that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
SeattleSan José
SEA Seattle/Tacoma Intl - SJO San José Juan Santamaria Intl
SEASJO
Seattle/Tacoma Intl
Sun 11/1
9:25 pm-12:20 pm
2 stops12h 55m
San José Juan Santamaria Intl
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$236
SeattleSan José
SEA Seattle/Tacoma Intl - SJO San José Juan Santamaria Intl
SEASJO
Seattle/Tacoma Intl
Sun 10/18
5:10 pm-12:35 pm
2 stops18h 25m
San José Juan Santamaria Intl
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$239
SeattleSan José
SEA Seattle/Tacoma Intl - SJO San José Juan Santamaria Intl
SEASJO
Seattle/Tacoma Intl
Sat 10/31
2:10 pm-1:15 pm
2 stops22h 05m
San José Juan Santamaria Intl
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$244
SeattleSan José
SEA Seattle/Tacoma Intl - SJO San José Juan Santamaria Intl
SEASJO
Seattle/Tacoma Intl
Tue 12/1
2:05 pm-1:15 pm
2 stops21h 10m
San José Juan Santamaria Intl
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$265
Quickest round-trip
SeattleSan José
SEA Seattle/Tacoma Intl - SJO San José Juan Santamaria Intl
SEASJO
Seattle/Tacoma Intl
Tue 9/15
8:50 am-6:45 pm
1 stop8h 55m
San José Juan Santamaria Intl
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$278
SeattleSan José
SEA Seattle/Tacoma Intl - SJO San José Juan Santamaria Intl
SEASJO
Seattle/Tacoma Intl
Tue 10/6
5:05 pm-12:21 pm
1 stop18h 16m
San José Juan Santamaria Intl
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$279
SeattleSan José
SEA Seattle/Tacoma Intl - SJO San José Juan Santamaria Intl
SEASJO
Seattle/Tacoma Intl
Wed 10/14
5:41 pm-2:00 pm
1 stop19h 19m
San José Juan Santamaria Intl
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$279
SeattleSan José
SEA Seattle/Tacoma Intl - SJO San José Juan Santamaria Intl
SEASJO
Seattle/Tacoma Intl
Sun 10/18
5:05 pm-12:21 pm
1 stop18h 16m
San José Juan Santamaria Intl
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$279
SeattleSan José
SEA Seattle/Tacoma Intl - SJO San José Juan Santamaria Intl
SEASJO
Seattle/Tacoma Intl
Sat 9/19
1:16 pm-7:15 am
1 stop16h 59m
San José Juan Santamaria Intl
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$289
SeattleSan José
SEA Seattle/Tacoma Intl - SJO San José Juan Santamaria Intl
SEASJO
Seattle/Tacoma Intl
Sat 10/24
6:15 am-7:40 pm
2 stops12h 25m
San José Juan Santamaria Intl
Tue 10/27
1:00 pm-11:55 pm
2 stops11h 55m
$566
Showing 1-10 of 20 resultsSorted by cheapest first
Compare providers for flights from Seattle to San José
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Seattle to San José in September.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star |
- Most accurate provider: When it comes to deals on Seattle-San José flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Seattle-San José flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Seattle-San José flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Seattle-San José flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Seattle-San José flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
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.
SEA-SJO
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 Seattle to San José
How far ahead should I book a flight from Seattle to San José?
The price you pay for your flight from Seattle to San José may vary depending on when you book. For the best chance of a lower fare, look to book 10 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
What is the cheapest month to book a flight from Seattle to San José?
Currently, October is the cheapest month in which you can book a flight from Seattle to San José (average of $560). Flying from Seattle to San José in March is currently the most expensive (average of $801). 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.
How much does it cost to fly round-trip from Seattle to San José?
Airfare is below average for this route at the moment.
Seattle to San José flights typically cost between $521 and $748 in October.The cheapest round-trip price found within the last 5 days was $500 on Southwest (Oct 21-Oct 28).
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 September 6, 2026.
See what other customers who have flown with Alaska Airlines,Delta, andUnited Airlines from Seattle to San José have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Crew
8.5
Entertainment
7.0
Food
7.0
Overall
7.9
Boarding
8.1
Comfort
7.8
Reviews
1 / 20
6.0
GoodAnonymous,Jul 2026
SEA - LHR
Crew
8.5
Entertainment
7.0
Food
7.0
Overall
7.9
Boarding
8.1
Comfort
7.8
Reviews
1 / 20
6.0
GoodAnonymous,Jul 2026
SEA - LHR
Crew
8.5
Entertainment
7.0
Food
7.0
Overall
7.9
Boarding
8.1
Comfort
7.8
Reviews
1 / 20
6.0
GoodAnonymous,Jul 2026
SEA - LHR
Crew
8.5
Entertainment
7.0
Food
7.0
Overall
7.9
Boarding
8.1
Comfort
7.8
Reviews
1 / 20
6.0
GoodAnonymous,Jul 2026
SEA - LHR
Crew
8.5
Entertainment
7.0
Food
7.0
Overall
7.9
Boarding
8.1
Comfort
7.8
Reviews
1 / 20
6.0
GoodAnonymous,Jul 2026
SEA - LHR
Crew
8.5
Entertainment
7.0
Food
7.0
Overall
7.9
Boarding
8.1
Comfort
7.8
Reviews
1 / 20
6.0
GoodAnonymous,Jul 2026
SEA - LHR
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.
Traveling to a place near San José?
Book flights to San José if you plan to visit one of these locationsAlajuela
Jacó
Heredia
Dominical
Manuel Antonio
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Top 7 airlines flying from Seattle to San José
Discover the top 7 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 7,457,451 searches. Data last updated September 6, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$345 | Average$751 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$362 | Average$682 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$383 | Average$655 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$384 | Average$740 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$387 | Average$688 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$389 | Average$673 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$516 | Average$703 | FlexibilityNo cancel fee | On-time63% |