$174+ Cheap flights from Seattle (SEA) to Costa Rica
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 4/17. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — SJO
Apr 22 — Apr 291
Round-trip
1 adult, Economy
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Find cheap flights from Seattle to Costa Rica with Cheapflights
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Cheapest flights from Seattle to Costa RicaExplore the most affordable flight options available from Seattle to Costa Rica. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 23, 2026.
Explore the most affordable flight options available from Seattle to Costa Rica. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 23, 2026.
This FlightHub deal was found by Cheapflights users on 3/20. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/59:15 pm
SEA
- SJO
2 stops25h 00m
Multiple Airlines
Sat 8/155:45 am
SJO
- SEA
2 stops17h 16m
Multiple Airlines
Deal found 3/20![Multiple Airlines logo]()
$457
This Trip.com deal was found by Cheapflights users on 3/22. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/274:17 pm
SEA
- SJO
2 stops29h 58m
Multiple Airlines
Tue 8/115:45 am
SJO
- SEA
2 stops13h 28m
Multiple Airlines
Deal found 3/22![Multiple Airlines logo]()
$458
This Avianca deal was found by Cheapflights users on 3/20. 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.
Fri 5/17:06 pm
SEA
- SJO
2 stops12h 39m
Multiple Airlines
Tue 5/55:45 am
SJO
- SEA
2 stops13h 55m
Multiple Airlines
Deal found 3/20![Multiple Airlines logo]()
$459
This Avianca deal was found by Cheapflights users on 3/18. 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 5/17:06 pm
SEA
- SJO
2 stops12h 39m
Multiple Airlines
Wed 5/65:05 am
SJO
- SEA
2 stops13h 33m
Multiple Airlines
Deal found 3/18![Multiple Airlines logo]()
$460
This Expedia deal was found by Cheapflights users on 3/21. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/55:06 pm
SEA
- SJO
3 stops17h 39m
Multiple Airlines
Thu 5/285:45 am
SJO
- SEA
2 stops17h 59m
Multiple Airlines
Deal found 3/21![Multiple Airlines logo]()
$463
This Trip.com deal was found by Cheapflights users on 3/19. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/216:25 am
SEA
- SJO
2 stops15h 50m
Multiple Airlines
Tue 4/285:45 am
SJO
- SEA
2 stops35h 05m
Multiple Airlines
Deal found 3/19![Multiple Airlines logo]()
$465
This Trip.com deal was found by Cheapflights users on 3/22. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/209:15 pm
SEA
- SJO
2 stops25h 00m
Multiple Airlines
Tue 4/285:45 am
SJO
- SEA
2 stops13h 55m
Multiple Airlines
Deal found 3/22![Multiple Airlines logo]()
$466
This Justfly.com deal was found by Cheapflights users on 3/22. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/810:44 am
SEA
- SJO
2 stops20h 46m
Multiple Airlines
Sat 4/259:40 am
SJO
- SEA
2 stops12h 46m
Multiple Airlines
Deal found 3/22![Multiple Airlines logo]()
$467
This Trip.com deal was found by Cheapflights users on 3/19. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/249:06 pm
SEA
- SJO
2 stops25h 09m
Multiple Airlines
Wed 4/294:35 pm
SJO
- SEA
2 stops23h 09m
Multiple Airlines
Deal found 3/19![Multiple Airlines logo]()
$468
This Trip.com deal was found by Cheapflights users on 3/20. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/19:06 pm
SEA
- SJO
2 stops25h 09m
Multiple Airlines
Fri 5/84:35 pm
SJO
- SEA
2 stops28h 12m
Multiple Airlines
Deal found 3/20![Multiple Airlines logo]()
$469
This Justfly.com deal was found by Cheapflights users on 3/22. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/149:08 am
SEA
- SJO
2 stops13h 07m
Multiple Airlines
Tue 4/285:45 am
SJO
- SEA
2 stops16h 05m
Multiple Airlines
Deal found 3/22![Multiple Airlines logo]()
$470
This Southwest deal was found by Cheapflights users on 3/20. 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.
Mon 4/275:35 pm
SEA
- LIR
2 stops18h 40m
Southwest
Mon 5/42:10 pm
LIR
- SEA
2 stops11h 45m
Southwest
Deal found 3/20![Southwest logo]()
$532
Best flights from Seattle to Costa RicaDiscover carefully curated flight deals from Seattle to Costa Rica that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated March 23, 2026.
Discover carefully curated flight deals from Seattle to Costa Rica that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated March 23, 2026.
This Alaska Airlines deal was found by Cheapflights users on 3/21. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/510:50 pm
SEA
- SJO
2 stops23h 55m
Alaska Airlines
Tue 5/1912:53 am
SJO
- SEA
2 stops19h 05m
Alaska Airlines
Deal found 3/21![Alaska Airlines logo]()
$550
This Southwest deal was found by Cheapflights users on 3/18. 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.
Sat 7/47:25 pm
SEA
- LIR
2 stops15h 10m
Southwest
Mon 7/132:10 pm
LIR
- SEA
2 stops21h 20m
Southwest
Deal found 3/18![Southwest logo]()
$701
This United Airlines deal was found by Cheapflights users on 3/18. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/227:05 pm
SEA
- LIR
2 stops13h 45m
United Airlines
Mon 6/2911:10 am
LIR
- SEA
1 stop10h 43m
United Airlines
Deal found 3/18![United Airlines logo]()
$770
This Alaska Airlines deal was found by Cheapflights users on 3/22. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/17:00 am
SEA
- SJO
1 stop15h 33m
Alaska Airlines
Mon 6/812:53 am
SJO
- SEA
1 stop12h 08m
Alaska Airlines
Deal found 3/22![Alaska Airlines logo]()
$572
This Alaska Airlines deal was found by Cheapflights users on 3/22. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/38:00 am
SEA
- SJO
1 stop14h 33m
Alaska Airlines
Mon 6/812:53 am
SJO
- SEA
1 stop15h 35m
Alaska Airlines
Deal found 3/22![Alaska Airlines logo]()
$588
This Alaska Airlines deal was found by Cheapflights users on 3/21. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/58:25 am
SEA
- SJO
2 stops14h 20m
Alaska Airlines
Wed 5/2712:53 am
SJO
- SEA
2 stops13h 21m
Alaska Airlines
Deal found 3/21![Alaska Airlines logo]()
$592
This United Airlines deal was found by Cheapflights users on 3/22. 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.
Sun 4/197:37 pm
SEA
- LIR
2 stops15h 33m
United Airlines
Sun 4/268:30 am
LIR
- SEA
1 stop11h 05m
United Airlines
Deal found 3/22![United Airlines logo]()
$775
This Alaska Airlines deal was found by Cheapflights users on 3/22. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/28:45 am
SEA
- SJO
2 stops13h 48m
Alaska Airlines
Thu 6/111:03 am
SJO
- SEA
2 stops33h 11m
Alaska Airlines
Deal found 3/22![Alaska Airlines logo]()
$608
This Alaska Airlines deal was found by Cheapflights users on 3/22. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/39:02 am
SEA
- SJO
1 stop13h 31m
Alaska Airlines
Thu 6/111:03 am
SJO
- SEA
1 stop22h 58m
Alaska Airlines
Deal found 3/22![Alaska Airlines logo]()
$614
This Alaska Airlines deal was found by Cheapflights users on 3/18. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/148:30 pm
SEA
- SJO
2 stops26h 03m
Alaska Airlines
Mon 5/1812:53 am
SJO
- SEA
1 stop16h 43m
Alaska Airlines
Deal found 3/18![Alaska Airlines logo]()
$621
This Alaska Airlines deal was found by Cheapflights users on 3/18. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/28:25 am
SEA
- SJO
2 stops14h 20m
Alaska Airlines
Tue 5/512:55 am
SJO
- SEA
1 stop17h 43m
Alaska Airlines
Deal found 3/18![Alaska Airlines logo]()
$637
This Alaska Airlines deal was found by Cheapflights users on 3/21. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/58:25 am
SEA
- LIR
2 stops20h 55m
Alaska Airlines
Tue 5/1211:20 am
LIR
- SEA
1 stop10h 30m
Alaska Airlines
Deal found 3/21![Alaska Airlines logo]()
$670
This Alaska Airlines deal was found by Cheapflights users on 3/21. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/245:24 am
SEA
- LIR
2 stops11h 21m
Alaska Airlines
Tue 8/2510:00 am
LIR
- SEA
2 stops21h 00m
Alaska Airlines
Deal found 3/21![Alaska Airlines logo]()
$686
This Alaska Airlines deal was found by Cheapflights users on 3/19. 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.
Mon 5/47:05 am
SEA
- LIR
2 stops22h 15m
Alaska Airlines
Thu 5/711:20 am
LIR
- SEA
2 stops22h 22m
Alaska Airlines
Deal found 3/19![Alaska Airlines logo]()
$688
This Alaska Airlines deal was found by Cheapflights users on 3/21. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/237:00 am
SEA
- LIR
1 stop9h 45m
Alaska Airlines
Thu 8/2710:00 am
LIR
- SEA
1 stop15h 04m
Alaska Airlines
Deal found 3/21![Alaska Airlines logo]()
$688
This Alaska Airlines deal was found by Cheapflights users on 3/21. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/163:59 pm
SEA
- LIR
2 stops13h 38m
Alaska Airlines
Sun 8/2310:00 am
LIR
- SEA
1 stop13h 46m
Alaska Airlines
Deal found 3/21![Alaska Airlines logo]()
$743
This Alaska Airlines deal was found by Cheapflights users on 3/20. 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.
Sat 4/117:49 am
SEA
- LIR
2 stops21h 31m
Alaska Airlines
Sun 4/197:40 am
LIR
- SEA
2 stops27h 11m
Alaska Airlines
Deal found 3/20![Alaska Airlines logo]()
$753
Last-minute flights from Seattle to Costa RicaDiscover last-minute flight deals from Seattle to Costa Rica. Data last updated March 23, 2026 and is based on user searches.
Discover last-minute flight deals from Seattle to Costa Rica. Data last updated March 23, 2026 and is based on user searches.
This Travelocity deal was found by Cheapflights users on 3/22. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/239:15 pm
SEA
- SJO
2 stops25h 00m
Multiple Airlines
Mon 3/3012:40 pm
SJO
- SEA
3 stops23h 22m
Multiple Airlines
Deal found 3/22![Multiple Airlines logo]()
$471
This Justfly.com deal was found by Cheapflights users on 3/22. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/810:44 am
SEA
- SJO
2 stops20h 46m
Multiple Airlines
Sat 4/259:40 am
SJO
- SEA
2 stops12h 46m
Multiple Airlines
Deal found 3/22![Multiple Airlines logo]()
$467
This Orbitz deal was found by Cheapflights users on 3/20. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/96:25 am
SEA
- SJO
2 stops15h 50m
Multiple Airlines
Thu 4/235:05 am
SJO
- SEA
2 stops15h 48m
Multiple Airlines
Deal found 3/20![Multiple Airlines logo]()
$479
This Orbitz deal was found by Cheapflights users on 3/22. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/137:40 am
SEA
- SJO
2 stops15h 00m
Multiple Airlines
Tue 4/219:40 am
SJO
- SEA
2 stops27h 12m
Multiple Airlines
Deal found 3/22![Multiple Airlines logo]()
$475
This Alaska Airlines deal was found by Cheapflights users on 3/18. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/133:57 pm
SEA
- LIR
2 stops13h 23m
Alaska Airlines
Mon 4/206:12 pm
LIR
- SEA
2 stops21h 26m
Alaska Airlines
Deal found 3/18![Alaska Airlines logo]()
$610
This Justfly.com deal was found by Cheapflights users on 3/22. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/149:08 am
SEA
- SJO
2 stops13h 07m
Multiple Airlines
Tue 4/285:45 am
SJO
- SEA
2 stops16h 05m
Multiple Airlines
Deal found 3/22![Multiple Airlines logo]()
$470
This Trip.com deal was found by Cheapflights users on 3/22. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/209:15 pm
SEA
- SJO
2 stops25h 00m
Multiple Airlines
Tue 4/285:45 am
SJO
- SEA
2 stops13h 55m
Multiple Airlines
Deal found 3/22![Multiple Airlines logo]()
$466
This Avianca deal was found by Cheapflights users on 3/20. 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.
Tue 4/216:25 am
SEA
- SJO
2 stops15h 50m
Multiple Airlines
Tue 4/285:45 am
SJO
- SEA
2 stops13h 55m
Multiple Airlines
Deal found 3/20![Multiple Airlines logo]()
$457
This Trip.com deal was found by Cheapflights users on 3/19. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/249:06 pm
SEA
- SJO
2 stops25h 09m
Multiple Airlines
Wed 4/294:35 pm
SJO
- SEA
2 stops23h 09m
Multiple Airlines
Deal found 3/19![Multiple Airlines logo]()
$468
This Avianca deal was found by Cheapflights users on 3/18. 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.
Sat 4/257:40 am
SEA
- SJO
2 stops14h 35m
Multiple Airlines
Sat 5/95:45 am
SJO
- SEA
2 stops16h 05m
Multiple Airlines
Deal found 3/18![Multiple Airlines logo]()
$463
This FlightHub deal was found by Cheapflights users on 3/21. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/259:00 am
SEA
- SJO
2 stops13h 15m
Multiple Airlines
Sat 5/25:05 am
SJO
- SEA
2 stops13h 20m
Multiple Airlines
Deal found 3/21![Multiple Airlines logo]()
$472
This Southwest deal was found by Cheapflights users on 3/20. 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.
Mon 4/275:35 pm
SEA
- LIR
2 stops18h 40m
Southwest
Mon 5/42:10 pm
LIR
- SEA
2 stops11h 45m
Southwest
Deal found 3/20![Southwest logo]()
$532
One-way flights from Seattle to Costa RicaSearch for one-way flight options from Seattle to Costa Rica. Find affordable one-way fares based on user searches. Data last updated March 23, 2026.
Search for one-way flight options from Seattle to Costa Rica. Find affordable one-way fares based on user searches. Data last updated March 23, 2026.
This Kiwi.com deal was found by Cheapflights users on 3/18. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/177:12 pm
SEA
- SJO
3 stops39h 21m
Multiple Airlines
Deal found 3/18![Multiple Airlines logo]()
$174
This eDestinos deal was found by Cheapflights users on 3/20. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/127:40 am
SEA
- SJO
1 stop14h 35m
Multiple Airlines
Deal found 3/20![Multiple Airlines logo]()
$186
This Booking.com deal was found by Cheapflights users on 3/19. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/176:20 pm
SEA
- LIR
1 stop18h 23m
Sun Country Air
Deal found 3/19![Sun Country Air logo]()
$190
This Avianca deal was found by Cheapflights users on 3/19. 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 5/27:06 pm
SEA
- SJO
2 stops12h 39m
Multiple Airlines
Deal found 3/19![Multiple Airlines logo]()
$193
This FlightHub deal was found by Cheapflights users on 3/21. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/148:00 am
SEA
- SJO
1 stop14h 15m
Multiple Airlines
Deal found 3/21![Multiple Airlines logo]()
$194
This Trip.com deal was found by Cheapflights users on 3/19. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/267:40 am
SEA
- SJO
2 stops14h 35m
Multiple Airlines
Deal found 3/19![Multiple Airlines logo]()
$197
This Trip.com deal was found by Cheapflights users on 3/21. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/289:08 am
SEA
- SJO
2 stops13h 07m
Multiple Airlines
Deal found 3/21![Multiple Airlines logo]()
$198
This Trip.com deal was found by Cheapflights users on 3/22. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/278:08 pm
SEA
- SJO
2 stops26h 07m
Multiple Airlines
Deal found 3/22![Multiple Airlines logo]()
$203
This Kiwi.com deal was found by Cheapflights users on 3/18. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/217:12 pm
SEA
- SJO
3 stops39h 21m
Multiple Airlines
Deal found 3/18![Multiple Airlines logo]()
$204
This KAYAK deal was found by Cheapflights users on 3/22. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/1611:39 pm
SEA
- LIR
1 stop12h 01m
JetBlue
Deal found 3/22![JetBlue logo]()
$206
This Kiwi.com deal was found by Cheapflights users on 3/18. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/187:12 pm
SEA
- SJO
3 stops39h 21m
Multiple Airlines
Deal found 3/18![Multiple Airlines logo]()
$210
This Kiwi.com deal was found by Cheapflights users on 3/23. 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 4/198:41 am
SEA
- LIR
3 stops20h 39m
Multiple Airlines
Deal found 3/23![Multiple Airlines logo]()
$216
Find flight deals from Seattle to Costa Rica
Keep the following information in mind while searching for Seattle to Costa Rica flight deals. Data was last updated March 23, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $457 (FlightHub) |
One-way from | $174 (Kiwi.com) |
Popular in | December |
Cheapest in | October |
Average price | $709 |
Cheapflights Fare Finder
Customize your flight search to find flights from Seattle to Costa Rica 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 March 23, 2026.
Use the filters below to find and compare flights from Seattle to Costa Rica that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
SeattleSan José
SEA - SJO
SEASJO
Seattle/Tacoma Intl
Tue 5/5
10:50 pm-11:45 pm
2 stops23h 55m
San José Juan Santamaria Intl
Tue 5/19
12:53 am-6:58 pm
2 stops19h 05m
$550
SeattleSan José
SEA - SJO
SEASJO
Seattle/Tacoma Intl
Mon 6/1
7:00 am-11:33 pm
1 stop15h 33m
San José Juan Santamaria Intl
Mon 6/8
12:53 am-12:01 pm
1 stop12h 08m
$572
SeattleSan José
SEA - SJO
SEASJO
Seattle/Tacoma Intl
Wed 6/3
8:00 am-11:33 pm
1 stop14h 33m
San José Juan Santamaria Intl
Mon 6/8
12:53 am-3:28 pm
1 stop15h 35m
$588
SeattleSan José
SEA - SJO
SEASJO
Seattle/Tacoma Intl
Tue 5/5
8:25 am-11:45 pm
2 stops14h 20m
San José Juan Santamaria Intl
Wed 5/27
12:53 am-1:14 pm
2 stops13h 21m
$592
SeattleSan José
SEA - SJO
SEASJO
Seattle/Tacoma Intl
Tue 6/2
8:45 am-11:33 pm
2 stops13h 48m
San José Juan Santamaria Intl
Thu 6/11
1:03 am-9:14 am
2 stops33h 11m
$608
SeattleSan José
SEA - SJO
SEASJO
Seattle/Tacoma Intl
Wed 6/3
9:02 am-11:33 pm
1 stop13h 31m
San José Juan Santamaria Intl
Thu 6/11
1:03 am-11:01 pm
1 stop22h 58m
$614
SeattleSan José
SEA - SJO
SEASJO
Seattle/Tacoma Intl
Thu 5/14
8:30 pm-11:33 pm
2 stops26h 03m
San José Juan Santamaria Intl
Mon 5/18
12:53 am-4:36 pm
1 stop16h 43m
$621
SeattleSan José
SEA - SJO
SEASJO
Seattle/Tacoma Intl
Sat 5/2
8:25 am-11:45 pm
2 stops14h 20m
San José Juan Santamaria Intl
Tue 5/5
12:55 am-5:38 pm
1 stop17h 43m
$637
SeattleLiberia
SEA - LIR
SEALIR
Seattle/Tacoma Intl
Tue 5/5
8:25 am-6:20 am
2 stops20h 55m
Liberia
Tue 5/12
11:20 am-8:50 pm
1 stop10h 30m
$670
SeattleLiberia
SEA - LIR
SEALIR
Seattle/Tacoma Intl
Mon 8/24
5:24 am-5:45 pm
2 stops11h 21m
Liberia
Tue 8/25
10:00 am-6:00 am
2 stops21h 00m
$686
Showing 1-10 of 39 resultsSorted by cheapest first
Best time to book a flight from Seattle to Costa Rica
Have a flexible travel schedule? Discover the best time to fly to Costa Rica from Seattle with our price prediction graph.
SEA-SJO
SEA-LIR
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 Costa Rica
SEA-CR0
SEA-SJO
SEA-LIR
What is the cheapest month to book a flight from Seattle to Costa Rica?
Currently, May is the cheapest month in which you can book a flight from Seattle to Costa Rica (average of $221). Flying from Seattle to Costa Rica in July is currently the most expensive (average of $506). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
What is the cheapest time of day to fly from SEA to CR?
Find hourly flight availability from Seattle to Costa Rica. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated March 23, 2026.
Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Seattle to Costa Rica as you normally would.
Reviews of airlines servicing Costa Rica
Get insights into the airlines that provide service to Costa Rica. 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 Costa Rica. Reviews last updated March 23, 2026.
Get a feel of what it's like to fly with Southwest,Alaska Airlines, andDelta from Seattle to Costa Rica by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Overall
8.0
Entertainment
7.5
Food
7.0
Boarding
8.1
Comfort
8.0
Crew
8.6
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Overall
8.0
Entertainment
7.5
Food
7.0
Boarding
8.1
Comfort
8.0
Crew
8.6
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Overall
8.0
Entertainment
7.5
Food
7.0
Boarding
8.1
Comfort
8.0
Crew
8.6
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Overall
8.0
Entertainment
7.5
Food
7.0
Boarding
8.1
Comfort
8.0
Crew
8.6
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Overall
8.0
Entertainment
7.5
Food
7.0
Boarding
8.1
Comfort
8.0
Crew
8.6
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Overall
8.0
Entertainment
7.5
Food
7.0
Boarding
8.1
Comfort
8.0
Crew
8.6
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Related info for your journey
Find useful and relevant information for your journey from Seattle to Costa Rica. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for Seattle to Costa Rica
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Complete your trip
Complete your trip to Costa Rica by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Seattle to Costa Rica by cabin class
Find flights from Seattle to Costa Rica, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Seattle and Costa Rica flights
Browse other Seattle and Costa Rica flight options. Last updated on March 23, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 8 airlines flying from Seattle to Costa Rica
Discover the top 8 airlines that operate flights from Seattle to Costa Rica. 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 March 23, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$152 | Average$221 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$254 | Average$602 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$316 | Average$616 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$357 | Average$599 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$362 | Average$681 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$389 | Average$605 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$568 | Average$723 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$766 | Average$981 | FlexibilityNo cancel fee | On-timeN/A |