$226+ Cheap flights from Seattle (SEA) to San José (SJO)
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 10/18. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — SJO
Sep 22 — Sep 291
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
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
Cheapest
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 August 23, 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 August 23, 2026.
This Southwest deal was found by Cheapflights users on 8/19. 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 10/256:30 am -
2 stops12h 10m
Fri 10/301:30 pm -
2 stops21h 30m
Deal found 8/19![Southwest logo]()
$500
This Southwest deal was found by Cheapflights users on 8/21. 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.
Fri 10/236:50 pm -
2 stops16h 10m
Fri 10/301:30 pm -
2 stops21h 30m
Deal found 8/21![Southwest logo]()
$513
This Southwest deal was found by Cheapflights users on 8/19. 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 10/75:35 am -
2 stops13h 05m
Wed 10/211:00 pm -
2 stops11h 55m
Deal found 8/19![Southwest logo]()
$524
This Southwest deal was found by Cheapflights users on 8/22. 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 stops13h 40m
Deal found 8/22![Southwest logo]()
$526
This Southwest deal was found by Cheapflights users on 8/22. 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.
Fri 11/69:25 pm -
2 stops13h 40m
Thu 11/122:10 pm -
2 stops21h 55m
Deal found 8/22![Southwest logo]()
$531
This Avianca deal was found by Cheapflights users on 8/19. 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 Avianca is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/296:49 am -
2 stops15h 26m
Sat 9/55:45 am -
2 stops15h 54m
Deal found 8/19![Multiple Airlines logo]()
$532
This oojo deal was found by Cheapflights users on 8/18. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/179:57 am -
2 stops12h 18m
Fri 10/29:40 am -
2 stops24h 16m
Deal found 8/18![Multiple Airlines logo]()
$533
This Avianca deal was found by Cheapflights users on 8/18. 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 Avianca is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/1610:07 am -
2 stops12h 08m
Thu 10/225:45 am -
2 stops15h 05m
Deal found 8/18![Multiple Airlines logo]()
$535
This Southwest deal was found by Cheapflights users on 8/19. 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 11/111:00 pm -
2 stops22h 15m
Sat 11/211:20 pm -
2 stops14h 10m
Deal found 8/19![Southwest logo]()
$538
This Southwest deal was found by Cheapflights users on 8/22. 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.
Thu 11/59:25 pm -
2 stops12h 55m
Mon 11/92:10 pm -
2 stops13h 05m
Deal found 8/22![Southwest logo]()
$544
This Avianca deal was found by Cheapflights users on 8/19. 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 Avianca is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/176:49 am -
2 stops15h 26m
Thu 9/247:45 am -
1 stop15h 09m
Deal found 8/19![Multiple Airlines logo]()
$547
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 August 23, 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 August 23, 2026.
This Avianca deal was found by Cheapflights users on 8/18. 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 Avianca is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/179:57 am -
2 stops12h 18m
Fri 10/27:45 am -
1 stop15h 09m
Deal found 8/18![Multiple Airlines logo]()
$540
This United Airlines deal was found by Cheapflights users on 8/22. 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 1/296:51 pm -
1 stop9h 34m
Sat 2/66:40 am -
1 stop14h 28m
Deal found 8/22![United Airlines logo]()
$598
This Southwest deal was found by Cheapflights users on 8/22. 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 10/315:55 am -
2 stops12h 45m
Sun 11/82:10 pm -
2 stops21h 55m
Deal found 8/22![Southwest logo]()
$611
This Alaska Airlines deal was found by Cheapflights users on 8/19. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 1/279:50 am -
1 stop11h 35m
Wed 2/31:23 am -
1 stop17h 24m
Deal found 8/19![Alaska Airlines logo]()
$669
This United Airlines deal was found by Cheapflights users on 8/20. 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 1/306:51 pm -
1 stop9h 34m
Sat 2/66:40 am -
1 stop14h 28m
Deal found 8/20![United Airlines logo]()
$598
This Alaska Airlines deal was found by Cheapflights users on 8/19. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 1/2410:59 pm -
2 stops22h 26m
Tue 2/21:23 am -
1 stop17h 24m
Deal found 8/19![Alaska Airlines logo]()
$674
This United Airlines deal was found by Cheapflights users on 8/22. 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.
Mon 11/211:59 pm -
1 stop11h 23m
Mon 11/239:40 am -
1 stop10h 53m
Deal found 8/22![United Airlines logo]()
$630
This Alaska Airlines deal was found by Cheapflights users on 8/19. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 1/278:15 am -
1 stop13h 10m
Thu 2/41:23 am -
2 stops21h 07m
Deal found 8/19![Alaska Airlines logo]()
$674
This Alaska Airlines deal was found by Cheapflights users on 8/20. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/125:59 pm -
1 stop27h 06m
Tue 11/171:46 am -
1 stop16h 25m
Deal found 8/20![Alaska Airlines logo]()
$680
This United Airlines deal was found by Cheapflights users on 8/22. 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 10/163:18 pm -
2 stops20h 03m
Tue 10/278:40 am -
1 stop10h 46m
Deal found 8/22![United Airlines logo]()
$710
This United Airlines deal was found by Cheapflights users on 8/22. 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 11/2712:20 pm -
1 stop16h 05m
Sat 12/126:40 am -
1 stop17h 08m
Deal found 8/22![United Airlines logo]()
$718
This United Airlines deal was found by Cheapflights users on 8/19. 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.
Sun 1/247:03 am -
1 stop9h 13m
Fri 1/291:15 am -
2 stops15h 03m
Deal found 8/19![United Airlines logo]()
$720
Last-minute flights from Seattle to San JoséDiscover last-minute flight deals from Seattle to San José. Data last updated August 23, 2026 and is based on user searches.
Discover last-minute flight deals from Seattle to San José. Data last updated August 23, 2026 and is based on user searches.
This Avianca deal was found by Cheapflights users on 8/19. 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 Avianca is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/296:49 am -
2 stops15h 26m
Sat 9/55:45 am -
2 stops15h 54m
Deal found 8/19![Multiple Airlines logo]()
$532
This Avianca deal was found by Cheapflights users on 8/18. 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 Avianca is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/39:35 am -
2 stops12h 40m
Mon 9/77:45 am -
1 stop15h 15m
Deal found 8/18![Multiple Airlines logo]()
$555
This oojo deal was found by Cheapflights users on 8/19. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/45:59 pm -
2 stops28h 16m
Sat 9/123:10 pm -
2 stops20h 06m
Deal found 8/19![Multiple Airlines logo]()
$558
This oojo deal was found by Cheapflights users on 8/18. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/66:10 pm -
2 stops13h 35m
Sun 9/203:10 pm -
2 stops18h 42m
Deal found 8/18![Multiple Airlines logo]()
$561
This oojo deal was found by Cheapflights users on 8/20. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/152:56 pm -
2 stops19h 34m
Thu 10/17:45 am -
1 stop15h 09m
Deal found 8/20![Multiple Airlines logo]()
$573
This oojo deal was found by Cheapflights users on 8/18. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/179:57 am -
2 stops12h 18m
Fri 10/29:40 am -
2 stops24h 16m
Deal found 8/18![Multiple Airlines logo]()
$533
This Avianca deal was found by Cheapflights users on 8/19. 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 Avianca is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/176:49 am -
2 stops15h 26m
Thu 9/247:45 am -
1 stop15h 09m
Deal found 8/19![Multiple Airlines logo]()
$547
This Avianca deal was found by Cheapflights users on 8/18. 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 Avianca is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/239:57 am -
2 stops12h 18m
Thu 10/15:45 am -
2 stops14h 54m
Deal found 8/18![Multiple Airlines logo]()
$535
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 August 23, 2026.
Search for one-way flight options from Seattle to San José. Find affordable one-way fares based on user searches. Data last updated August 23, 2026.
This Southwest deal was found by Cheapflights users on 8/18. 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 10/186:30 am -
2 stops12h 10m
Deal found 8/18![Southwest logo]()
$226
This Southwest deal was found by Cheapflights users on 8/22. 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 9/2711:05 pm -
2 stops18h 40m
Deal found 8/22![Southwest logo]()
$238
This Southwest deal was found by Cheapflights users on 8/20. 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.
Fri 8/287:25 pm -
2 stops15h 50m
Deal found 8/20![Southwest logo]()
$239
This Southwest deal was found by Cheapflights users on 8/21. 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 10/275:50 am -
2 stops12h 50m
Deal found 8/21![Southwest logo]()
$250
This Avianca deal was found by Cheapflights users on 8/20. 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 Avianca is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/299:35 am -
2 stops12h 40m
Deal found 8/20![Multiple Airlines logo]()
$258
This Kiwi.com deal was found by Cheapflights users on 8/21. 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 10/278:09 pm -
3 stops39h 06m
Deal found 8/21![Multiple Airlines logo]()
$259
This Avianca deal was found by Cheapflights users on 8/19. 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 Avianca is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/169:57 am -
2 stops12h 18m
Deal found 8/19![Multiple Airlines logo]()
$260
This FlightHub deal was found by Cheapflights users on 8/18. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/16:49 am -
2 stops15h 26m
Deal found 8/18![Multiple Airlines logo]()
$273
This Kiwi.com deal was found by Cheapflights users on 8/22. 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.
Sat 9/264:27 pm -
3 stops42h 48m
Deal found 8/22![Multiple Airlines logo]()
$274
This eDestinos deal was found by Cheapflights users on 8/18. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/287:09 am -
1 stop14h 06m
Deal found 8/18![Multiple Airlines logo]()
$276
This Southwest deal was found by Cheapflights users on 8/21. 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 8/295:00 am -
2 stops12h 00m
Deal found 8/21![Southwest logo]()
$278
This American Airlines deal was found by Cheapflights users on 8/18. 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 9/2011:57 pm -
2 stops13h 00m
Deal found 8/18![American Airlines logo]()
$279
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 August 23, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $500 (Southwest) |
One-way from | $226 (Southwest) |
Popular in | April |
Cheapest in | October |
Average price | $678 |
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 August 23, 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
Thu 9/17
9:57 am-11:15 pm
2 stops12h 18m
San José Juan Santamaria Intl
Fri 10/2
7:45 am-9:54 pm
1 stop15h 09m
$540
SeattleSan José
SEA Seattle/Tacoma Intl - SJO San José Juan Santamaria Intl
SEASJO
Seattle/Tacoma Intl
Fri 1/29
6:51 pm-6:25 am
1 stop9h 34m
San José Juan Santamaria Intl
Sat 2/6
6:40 am-7:08 pm
1 stop14h 28m
$598
SeattleSan José
SEA Seattle/Tacoma Intl - SJO San José Juan Santamaria Intl
SEASJO
Seattle/Tacoma Intl
Sat 1/30
6:51 pm-6:25 am
1 stop9h 34m
San José Juan Santamaria Intl
Sat 2/6
6:40 am-7:08 pm
1 stop14h 28m
$598
SeattleSan José
SEA Seattle/Tacoma Intl - SJO San José Juan Santamaria Intl
SEASJO
Seattle/Tacoma Intl
Sat 10/31
5:55 am-7:40 pm
2 stops12h 45m
San José Juan Santamaria Intl
Sun 11/8
2:10 pm-10:05 am
2 stops21h 55m
$611
Quickest round-trip
SeattleSan José
SEA Seattle/Tacoma Intl - SJO San José Juan Santamaria Intl
SEASJO
Seattle/Tacoma Intl
Mon 11/2
11:59 pm-1:22 pm
1 stop11h 23m
San José Juan Santamaria Intl
Mon 11/23
9:40 am-6:33 pm
1 stop10h 53m
$630
SeattleSan José
SEA Seattle/Tacoma Intl - SJO San José Juan Santamaria Intl
SEASJO
Seattle/Tacoma Intl
Wed 1/27
9:50 am-11:25 pm
1 stop11h 35m
San José Juan Santamaria Intl
Wed 2/3
1:23 am-4:47 pm
1 stop17h 24m
$669
SeattleSan José
SEA Seattle/Tacoma Intl - SJO San José Juan Santamaria Intl
SEASJO
Seattle/Tacoma Intl
Sun 1/24
10:59 pm-11:25 pm
2 stops22h 26m
San José Juan Santamaria Intl
Tue 2/2
1:23 am-4:47 pm
1 stop17h 24m
$674
SeattleSan José
SEA Seattle/Tacoma Intl - SJO San José Juan Santamaria Intl
SEASJO
Seattle/Tacoma Intl
Wed 1/27
8:15 am-11:25 pm
1 stop13h 10m
San José Juan Santamaria Intl
Thu 2/4
1:23 am-8:30 pm
2 stops21h 07m
$674
SeattleSan José
SEA Seattle/Tacoma Intl - SJO San José Juan Santamaria Intl
SEASJO
Seattle/Tacoma Intl
Thu 11/12
5:59 pm-11:05 pm
1 stop27h 06m
San José Juan Santamaria Intl
Tue 11/17
1:46 am-4:11 pm
1 stop16h 25m
$680
SeattleSan José
SEA Seattle/Tacoma Intl - SJO San José Juan Santamaria Intl
SEASJO
Seattle/Tacoma Intl
Fri 10/16
3:18 pm-12:21 pm
2 stops20h 03m
San José Juan Santamaria Intl
Tue 10/27
8:40 am-6:26 pm
1 stop10h 46m
$710
Showing 1-10 of 23 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 August.
| 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 74 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 April is currently the most expensive (average of $784). 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 $570 and $741 in October.The cheapest round-trip price found within the last 5 days was $500 on Southwest (Oct 25-Oct 30).
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 August 23, 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
Boarding
8.1
Comfort
7.8
Overall
7.9
Food
7.0
Reviews
1 / 20
6.0
GoodAnonymous,Jul 2026
SEA - LHR
Crew
8.5
Entertainment
7.0
Boarding
8.1
Comfort
7.8
Overall
7.9
Food
7.0
Reviews
1 / 20
6.0
GoodAnonymous,Jul 2026
SEA - LHR
Crew
8.5
Entertainment
7.0
Boarding
8.1
Comfort
7.8
Overall
7.9
Food
7.0
Reviews
1 / 20
6.0
GoodAnonymous,Jul 2026
SEA - LHR
Crew
8.5
Entertainment
7.0
Boarding
8.1
Comfort
7.8
Overall
7.9
Food
7.0
Reviews
1 / 20
6.0
GoodAnonymous,Jul 2026
SEA - LHR
Crew
8.5
Entertainment
7.0
Boarding
8.1
Comfort
7.8
Overall
7.9
Food
7.0
Reviews
1 / 20
6.0
GoodAnonymous,Jul 2026
SEA - LHR
Crew
8.5
Entertainment
7.0
Boarding
8.1
Comfort
7.8
Overall
7.9
Food
7.0
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
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Alternative routes
Complete your trip
Flights by cabin class
Other flight options
Other flights from Seattle
Popular flights
San José flight routes
Alternative routes for Seattle to San José
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to San José by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Seattle to San José by cabin class
Find flights from Seattle to San José, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Seattle and San José flights
Browse other Seattle and San José flight options. Last updated on August 23, 2026.
Other flights from Seattle
Browse through other flights departing from Seattle. Flights are based on user searches made on Cheapflights and were last updated on August 23, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Other flights to San José
Explore flights to San José departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on August 23, 2026.
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 August 23, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$345 | Average$673 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$362 | Average$682 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$384 | Average$882 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$386 | Average$651 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$387 | Average$681 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$391 | Average$670 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$516 | Average$703 | FlexibilityNo cancel fee | On-time63% |