$229+ 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 8/29. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — SJO
Sep 11 — Sep 181
Round-trip
1 adult, Economy
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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
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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 12, 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 12, 2026.
This Southwest deal was found by Cheapflights users on 8/11. 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 10/255:15 am -
2 stops13h 25m
Fri 10/301:30 pm -
2 stops12h 25m
Deal found 8/11![Southwest logo]()
$489
This Avianca deal was found by Cheapflights users on 8/11. 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.
Tue 10/68:20 am -
2 stops13h 55m
Thu 10/155:45 am -
2 stops14h 03m
Deal found 8/11![Multiple Airlines logo]()
$524
This oojo deal was found by Cheapflights users on 8/10. 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.
Wed 9/233:58 pm -
2 stops15h 47m
Thu 10/15:45 am -
2 stops13h 48m
Deal found 8/10![Multiple Airlines logo]()
$526
This oojo deal was found by Cheapflights users on 8/11. 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 10/68:20 am -
2 stops13h 55m
Mon 10/1912:40 pm -
3 stops21h 15m
Deal found 8/11![Multiple Airlines logo]()
$527
This oojo deal was found by Cheapflights users on 8/7. 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 8/7![Multiple Airlines logo]()
$529
This Avianca deal was found by Cheapflights users on 8/11. 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 8/11![Multiple Airlines logo]()
$532
This Avianca deal was found by Cheapflights users on 8/8. 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.
Tue 9/19:35 am -
2 stops12h 40m
Sun 9/65:05 am -
2 stops13h 18m
Deal found 8/8![Multiple Airlines logo]()
$534
This oojo deal was found by Cheapflights users on 8/11. 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 10/167:08 pm -
2 stops15h 22m
Thu 10/225:45 am -
2 stops13h 55m
Deal found 8/11![Multiple Airlines logo]()
$535
This oojo deal was found by Cheapflights users on 8/11. 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 9/19:35 am -
2 stops12h 40m
Mon 9/1412:40 pm -
3 stops21h 12m
Deal found 8/11![Multiple Airlines logo]()
$537
This oojo deal was found by Cheapflights users on 8/11. 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.
Mon 8/246:49 am -
2 stops15h 51m
Mon 8/319:40 am -
2 stops24h 12m
Deal found 8/11![Multiple Airlines logo]()
$539
This oojo deal was found by Cheapflights users on 8/11. 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.
Mon 9/145:59 pm -
2 stops13h 46m
Fri 9/2512:40 pm -
3 stops23h 16m
Deal found 8/11![Multiple Airlines logo]()
$540
This oojo deal was found by Cheapflights users on 8/11. 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 9/47:10 pm -
2 stops27h 05m
Fri 9/113:10 pm -
2 stops20h 46m
Deal found 8/11![Multiple Airlines logo]()
$541
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 12, 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 12, 2026.
This United Airlines deal was found by Cheapflights users on 8/9. 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 11/1311:59 pm -
1 stop9h 26m
Sat 11/217:30 am -
1 stop12h 29m
Deal found 8/9![United Airlines logo]()
$598
This Delta deal was found by Cheapflights users on 8/9. 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.
Sat 1/169:20 pm -
1 stop13h 25m
Sat 1/238:25 am -
1 stop14h 06m
Deal found 8/9![Delta logo]()
$639
This Alaska Airlines deal was found by Cheapflights users on 8/8. 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 1/3111:10 pm -
2 stops22h 47m
Thu 2/251:45 am -
2 stops18h 45m
Deal found 8/8![Alaska Airlines logo]()
$674
This United Airlines deal was found by Cheapflights users on 8/8. 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 11/411:59 pm -
1 stop9h 26m
Wed 11/188:45 am -
1 stop12h 32m
Deal found 8/8![United Airlines logo]()
$598
This Delta deal was found by Cheapflights users on 8/8. 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.
Wed 10/2111:59 pm -
1 stop11h 01m
Mon 10/261:25 pm -
1 stop21h 38m
Deal found 8/8![Delta logo]()
$680
This Delta deal was found by Cheapflights users on 8/8. 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.
Tue 10/203:55 pm -
1 stop19h 05m
Mon 10/261:25 pm -
1 stop21h 38m
Deal found 8/8![Delta logo]()
$680
This United Airlines deal was found by Cheapflights users on 8/8. 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 2/410:40 pm -
1 stop11h 35m
Tue 2/239:40 am -
1 stop16h 53m
Deal found 8/8![United Airlines logo]()
$718
This Delta deal was found by Cheapflights users on 8/8. 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.
Tue 10/2011:59 pm -
1 stop11h 01m
Wed 10/281:25 pm -
1 stop21h 38m
Deal found 8/8![Delta logo]()
$680
This United Airlines deal was found by Cheapflights users on 8/8. 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 1/117:03 am -
1 stop11h 36m
Sat 1/236:40 am -
1 stop14h 28m
Deal found 8/8![United Airlines logo]()
$718
This United Airlines deal was found by Cheapflights users on 8/8. 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 1/910:40 pm -
1 stop11h 35m
Tue 1/191:15 am -
2 stops15h 03m
Deal found 8/8![United Airlines logo]()
$718
This United Airlines deal was found by Cheapflights users on 8/9. 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 1/37:04 pm -
1 stop24h 56m
Sat 1/166:40 am -
1 stop17h 16m
Deal found 8/9![United Airlines logo]()
$730
This United Airlines deal was found by Cheapflights users on 8/7. 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 8/2911:59 pm -
1 stop11h 22m
Sat 9/58:45 am -
1 stop12h 58m
Deal found 8/7![United Airlines logo]()
$741
Last-minute flights from Seattle to San JoséDiscover last-minute flight deals from Seattle to San José. Data last updated August 12, 2026 and is based on user searches.
Discover last-minute flight deals from Seattle to San José. Data last updated August 12, 2026 and is based on user searches.
This oojo deal was found by Cheapflights users on 8/11. 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.
Mon 8/246:49 am -
2 stops15h 51m
Mon 8/319:40 am -
2 stops24h 12m
Deal found 8/11![Multiple Airlines logo]()
$539
This Avianca deal was found by Cheapflights users on 8/11. 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 8/11![Multiple Airlines logo]()
$532
This Avianca deal was found by Cheapflights users on 8/8. 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.
Tue 9/19:35 am -
2 stops12h 40m
Sun 9/65:05 am -
2 stops13h 18m
Deal found 8/8![Multiple Airlines logo]()
$534
This oojo deal was found by Cheapflights users on 8/11. 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 9/19:35 am -
2 stops12h 40m
Mon 9/1412:40 pm -
3 stops21h 12m
Deal found 8/11![Multiple Airlines logo]()
$537
This oojo deal was found by Cheapflights users on 8/11. 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
Wed 9/93:10 pm -
2 stops18h 42m
Deal found 8/11![Multiple Airlines logo]()
$535
This oojo deal was found by Cheapflights users on 8/11. 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 9/47:10 pm -
2 stops27h 05m
Fri 9/113:10 pm -
2 stops20h 46m
Deal found 8/11![Multiple Airlines logo]()
$541
This oojo deal was found by Cheapflights users on 8/7. 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 8/7![Multiple Airlines logo]()
$529
This oojo deal was found by Cheapflights users on 8/9. 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 9/67:10 pm -
2 stops15h 20m
Sun 9/1312:40 pm -
3 stops21h 12m
Deal found 8/9![Multiple Airlines logo]()
$546
This oojo deal was found by Cheapflights users on 8/11. 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 9/113:58 pm -
2 stops30h 17m
Fri 9/1812:40 pm -
3 stops23h 16m
Deal found 8/11![Multiple Airlines logo]()
$543
This oojo deal was found by Cheapflights users on 8/11. 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.
Mon 9/145:59 pm -
2 stops13h 46m
Fri 9/2512:40 pm -
3 stops23h 16m
Deal found 8/11![Multiple Airlines logo]()
$540
This oojo deal was found by Cheapflights users on 8/10. 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.
Wed 9/233:58 pm -
2 stops15h 47m
Thu 10/15:45 am -
2 stops13h 48m
Deal found 8/10![Multiple Airlines logo]()
$526
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 12, 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 12, 2026.
This Faresmojo deal was found by Cheapflights users on 8/11. 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 Faresmojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/297:55 am -
1 stop9h 05m
Deal found 8/11![JetBlue logo]()
$229
This Southwest deal was found by Cheapflights users on 8/9. 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 8/9![Southwest logo]()
$239
This Avianca deal was found by Cheapflights users on 8/11. 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
Deal found 8/11![Multiple Airlines logo]()
$253
This Avianca deal was found by Cheapflights users on 8/9. 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.
Mon 10/1210:07 am -
2 stops12h 08m
Deal found 8/9![Multiple Airlines logo]()
$256
This Avianca deal was found by Cheapflights users on 8/11. 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 1/168:00 am -
2 stops13h 15m
Deal found 8/11![Multiple Airlines logo]()
$258
This Avianca deal was found by Cheapflights users on 8/10. 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 11/268:11 am -
2 stops13h 29m
Deal found 8/10![Multiple Airlines logo]()
$259
This Avianca deal was found by Cheapflights users on 8/12. 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 10/1410:07 am -
2 stops12h 08m
Deal found 8/12![Multiple Airlines logo]()
$260
This oojo deal was found by Cheapflights users on 8/11. 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 9/207:10 pm -
2 stops15h 20m
Deal found 8/11![Multiple Airlines logo]()
$261
This oojo deal was found by Cheapflights users on 8/12. 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 8/212:49 pm -
2 stops31h 26m
Deal found 8/12![Multiple Airlines logo]()
$264
This Kiwi.com deal was found by Cheapflights users on 8/12. 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.
Wed 11/47:41 pm -
3 stops27h 44m
Deal found 8/12![Multiple Airlines logo]()
$265
This FlightHub deal was found by Cheapflights users on 8/12. 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.
Sat 9/129:57 am -
2 stops12h 18m
Deal found 8/12![Multiple Airlines logo]()
$273
This Southwest deal was found by Cheapflights users on 8/10. 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 12/69:25 pm -
2 stops12h 55m
Deal found 8/10![Southwest logo]()
$278
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 12, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $489 (Southwest) |
One-way from | $229 (Faresmojo) |
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 2,558,603 searches. Data last updated August 12, 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
Quickest round-trip
SeattleSan José
SEA Seattle/Tacoma Intl - SJO San José Juan Santamaria Intl
SEASJO
Seattle/Tacoma Intl
Fri 11/13
11:59 pm-11:25 am
1 stop9h 26m
San José Juan Santamaria Intl
Sat 11/21
7:30 am-5:59 pm
1 stop12h 29m
$598
SeattleSan José
SEA Seattle/Tacoma Intl - SJO San José Juan Santamaria Intl
SEASJO
Seattle/Tacoma Intl
Wed 11/4
11:59 pm-11:25 am
1 stop9h 26m
San José Juan Santamaria Intl
Wed 11/18
8:45 am-7:17 pm
1 stop12h 32m
$598
SeattleSan José
SEA Seattle/Tacoma Intl - SJO San José Juan Santamaria Intl
SEASJO
Seattle/Tacoma Intl
Sat 1/16
9:20 pm-12:45 pm
1 stop13h 25m
San José Juan Santamaria Intl
Sat 1/23
8:25 am-8:31 pm
1 stop14h 06m
$639
SeattleSan José
SEA Seattle/Tacoma Intl - SJO San José Juan Santamaria Intl
SEASJO
Seattle/Tacoma Intl
Sun 1/31
11:10 pm-11:57 pm
2 stops22h 47m
San José Juan Santamaria Intl
Thu 2/25
1:45 am-6:30 pm
2 stops18h 45m
$674
SeattleSan José
SEA Seattle/Tacoma Intl - SJO San José Juan Santamaria Intl
SEASJO
Seattle/Tacoma Intl
Wed 10/21
11:59 pm-12:00 pm
1 stop11h 01m
San José Juan Santamaria Intl
Mon 10/26
1:25 pm-10:03 am
1 stop21h 38m
$680
SeattleSan José
SEA Seattle/Tacoma Intl - SJO San José Juan Santamaria Intl
SEASJO
Seattle/Tacoma Intl
Tue 10/20
3:55 pm-12:00 pm
1 stop19h 05m
San José Juan Santamaria Intl
Mon 10/26
1:25 pm-10:03 am
1 stop21h 38m
$680
SeattleSan José
SEA Seattle/Tacoma Intl - SJO San José Juan Santamaria Intl
SEASJO
Seattle/Tacoma Intl
Tue 10/20
11:59 pm-12:00 pm
1 stop11h 01m
San José Juan Santamaria Intl
Wed 10/28
1:25 pm-10:03 am
1 stop21h 38m
$680
SeattleSan José
SEA Seattle/Tacoma Intl - SJO San José Juan Santamaria Intl
SEASJO
Seattle/Tacoma Intl
Thu 2/4
10:40 pm-12:15 pm
1 stop11h 35m
San José Juan Santamaria Intl
Tue 2/23
9:40 am-12:33 am
1 stop16h 53m
$718
SeattleSan José
SEA Seattle/Tacoma Intl - SJO San José Juan Santamaria Intl
SEASJO
Seattle/Tacoma Intl
Mon 1/11
7:03 am-8:39 pm
1 stop11h 36m
San José Juan Santamaria Intl
Sat 1/23
6:40 am-7:08 pm
1 stop14h 28m
$718
SeattleSan José
SEA Seattle/Tacoma Intl - SJO San José Juan Santamaria Intl
SEASJO
Seattle/Tacoma Intl
Sat 1/9
10:40 pm-12:15 pm
1 stop11h 35m
San José Juan Santamaria Intl
Tue 1/19
1:15 am-2:18 pm
2 stops15h 03m
$718
Showing 1-10 of 22 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 $558). Flying from Seattle to San José in April is currently the most expensive (average of $785). 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 $592 and $774 in October.The cheapest round-trip price found within the last 5 days was $489 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 12, 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.
Comfort
7.8
Crew
8.5
Overall
7.9
Food
7.0
Boarding
8.1
Entertainment
7.0
Reviews
1 / 20
6.0
GoodAnonymous,Jul 2026
SEA - LHR
Comfort
7.8
Crew
8.5
Overall
7.9
Food
7.0
Boarding
8.1
Entertainment
7.0
Reviews
1 / 20
6.0
GoodAnonymous,Jul 2026
SEA - LHR
Comfort
7.8
Crew
8.5
Overall
7.9
Food
7.0
Boarding
8.1
Entertainment
7.0
Reviews
1 / 20
6.0
GoodAnonymous,Jul 2026
SEA - LHR
Comfort
7.8
Crew
8.5
Overall
7.9
Food
7.0
Boarding
8.1
Entertainment
7.0
Reviews
1 / 20
6.0
GoodAnonymous,Jul 2026
SEA - LHR
Comfort
7.8
Crew
8.5
Overall
7.9
Food
7.0
Boarding
8.1
Entertainment
7.0
Reviews
1 / 20
6.0
GoodAnonymous,Jul 2026
SEA - LHR
Comfort
7.8
Crew
8.5
Overall
7.9
Food
7.0
Boarding
8.1
Entertainment
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
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Seattle and San José flights
Browse other Seattle and San José flight options. Last updated on August 12, 2026.
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Other flights to San José
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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 2,558,603 searches. Data last updated August 12, 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$740 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$387 | Average$681 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$388 | Average$647 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$390 | Average$668 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$516 | Average$703 | FlexibilityNo cancel fee | On-time63% |