$319+ Cheap flights from Costa Rica to Seattle (SEA)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/24. Fares are subject to change and may not be available on all flights or dates of travel.
SJO — SEA
Dec 12 — Dec 191
Round-trip
1 adult, Economy
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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 Costa Rica to Seattle
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Cheapest flights from Costa Rica to SeattleExplore the most affordable flight options available from Costa Rica to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 12, 2026.
Explore the most affordable flight options available from Costa Rica to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 12, 2026.
This American Airlines deal was found by Cheapflights users on 11/10. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/42:00 pm -
1 stop12h 59m
Thu 3/49:14 pm -
1 stop12h 14m
Deal found 11/10![American Airlines logo]()
$566
This United Airlines deal was found by Cheapflights users on 11/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/236:40 am -
2 stops16h 00m
Wed 1/610:21 am -
1 stop20h 11m
Deal found 11/11![United Airlines logo]()
$569
This United Airlines deal was found by Cheapflights users on 11/8. 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 12/102:25 pm -
1 stop10h 26m
Sat 3/61:16 pm -
1 stop17h 16m
Deal found 11/8![United Airlines logo]()
$578
This United Airlines deal was found by Cheapflights users on 11/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/188:45 am -
2 stops16h 30m
Tue 12/15:35 pm -
1 stop12h 57m
Deal found 11/11![United Airlines logo]()
$583
This United Airlines deal was found by Cheapflights users on 11/7. 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 11/148:45 am -
1 stop12h 32m
Sat 11/285:05 am -
1 stop14h 55m
Deal found 11/7![United Airlines logo]()
$587
This United Airlines deal was found by Cheapflights users on 11/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/202:25 pm -
1 stop30h 52m
Tue 12/19:01 am -
1 stop21h 31m
Deal found 11/11![United Airlines logo]()
$600
This American Airlines deal was found by Cheapflights users on 11/11. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/106:07 am -
2 stops18h 31m
Mon 3/811:29 pm -
2 stops12h 20m
Deal found 11/11![American Airlines logo]()
$601
This Sun Country Air deal was found by Cheapflights users on 11/10. 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 Sun Country Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/204:05 pm -
1 stop20h 24m
Sun 1/36:28 pm -
1 stop18h 24m
Deal found 11/10![Sun Country Air logo]()
$603
This American Airlines deal was found by Cheapflights users on 11/8. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/93:54 pm -
2 stops19h 49m
Mon 3/811:29 pm -
2 stops12h 20m
Deal found 11/8![American Airlines logo]()
$606
This United Airlines deal was found by Cheapflights users on 11/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/239:40 am -
1 stop10h 53m
Fri 11/277:05 am -
1 stop11h 34m
Deal found 11/11![United Airlines logo]()
$631
This Delta deal was found by Cheapflights users on 11/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/228:40 am -
1 stop15h 32m
Thu 12/312:00 pm -
1 stop15h 15m
Deal found 11/10![Delta logo]()
$632
This Air Canada deal was found by Cheapflights users on 11/9. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/183:10 pm -
1 stop31h 49m
Tue 1/1210:10 am -
2 stops26h 15m
Deal found 11/9![Air Canada logo]()
$717
Best flights from Costa Rica to SeattleDiscover carefully curated flight deals from Costa Rica to Seattle that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated November 12, 2026.
Discover carefully curated flight deals from Costa Rica to Seattle that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated November 12, 2026.
This United Airlines deal was found by Cheapflights users on 11/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/259:40 am -
1 stop17h 19m
Wed 12/27:00 am -
1 stop23h 32m
Deal found 11/11![United Airlines logo]()
$569
This Alaska Airlines deal was found by Cheapflights users on 11/11. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/126:43 pm -
2 stops21h 16m
Sat 2/1310:45 pm -
2 stops30h 40m
Deal found 11/11![Alaska Airlines logo]()
$765
This Delta deal was found by Cheapflights users on 11/7. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/191:50 pm -
1 stop12h 03m
Mon 12/2811:06 pm -
1 stop13h 04m
Deal found 11/7![Delta logo]()
$766
This United Airlines deal was found by Cheapflights users on 11/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/238:45 am -
2 stops33h 38m
Tue 3/25:30 pm -
2 stops17h 52m
Deal found 11/10![United Airlines logo]()
$569
This United Airlines deal was found by Cheapflights users on 11/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/102:25 pm -
1 stop10h 26m
Mon 3/810:45 am -
1 stop19h 47m
Deal found 11/11![United Airlines logo]()
$569
This United Airlines deal was found by Cheapflights users on 11/9. 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.
Tue 2/91:15 am -
2 stops18h 57m
Mon 2/227:41 pm -
1 stop10h 51m
Deal found 11/9![United Airlines logo]()
$569
This United Airlines deal was found by Cheapflights users on 11/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/236:40 am -
1 stop17h 19m
Wed 1/67:00 am -
1 stop23h 32m
Deal found 11/11![United Airlines logo]()
$569
This United Airlines deal was found by Cheapflights users on 11/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/169:40 am -
1 stop16h 04m
Wed 12/303:24 pm -
1 stop15h 08m
Deal found 11/11![United Airlines logo]()
$569
This United Airlines deal was found by Cheapflights users on 11/8. 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 11/2612:35 pm -
1 stop26h 49m
Wed 12/23:20 pm -
1 stop15h 12m
Deal found 11/8![United Airlines logo]()
$578
This United Airlines deal was found by Cheapflights users on 11/8. 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 2/119:40 am -
1 stop11h 00m
Mon 2/222:17 pm -
1 stop21h 05m
Deal found 11/8![United Airlines logo]()
$578
This United Airlines deal was found by Cheapflights users on 11/7. 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 2/139:40 am -
1 stop13h 15m
Sat 2/205:00 am -
1 stop15h 00m
Deal found 11/7![United Airlines logo]()
$578
This United Airlines deal was found by Cheapflights users on 11/8. 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 12/218:45 am -
2 stops14h 40m
Thu 1/73:34 pm -
1 stop14h 58m
Deal found 11/8![United Airlines logo]()
$578
This United Airlines deal was found by Cheapflights users on 11/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 1/191:15 am -
1 stop13h 58m
Wed 1/271:18 pm -
2 stops22h 04m
Deal found 11/10![United Airlines logo]()
$583
This United Airlines deal was found by Cheapflights users on 11/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/248:45 am -
1 stop12h 31m
Wed 1/67:00 am -
1 stop27h 56m
Deal found 11/10![United Airlines logo]()
$726
This United Airlines deal was found by Cheapflights users on 11/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/228:45 am -
3 stops16h 33m
Wed 1/61:18 pm -
2 stops21h 52m
Deal found 11/10![United Airlines logo]()
$726
This United Airlines deal was found by Cheapflights users on 11/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/2312:30 pm -
1 stop12h 02m
Mon 1/411:44 pm -
1 stop11h 12m
Deal found 11/10![United Airlines logo]()
$726
This United Airlines deal was found by Cheapflights users on 11/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 1/211:00 pm -
1 stop10h 17m
Mon 1/255:00 am -
1 stop9h 10m
Deal found 11/10![United Airlines logo]()
$735
This United Airlines deal was found by Cheapflights users on 11/9. 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 12/188:45 am -
2 stops16h 33m
Tue 1/121:18 pm -
2 stops21h 38m
Deal found 11/9![United Airlines logo]()
$739
This United Airlines deal was found by Cheapflights users on 11/7. 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 12/194:30 pm -
3 stops26h 02m
Mon 12/287:10 pm -
2 stops21h 27m
Deal found 11/7![United Airlines logo]()
$766
Last-minute flights from Costa Rica to SeattleDiscover last-minute flight deals from Costa Rica to Seattle. Data last updated November 12, 2026 and is based on user searches.
Discover last-minute flight deals from Costa Rica to Seattle. Data last updated November 12, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 11/7. 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 11/148:45 am -
1 stop12h 32m
Sat 11/285:05 am -
1 stop14h 55m
Deal found 11/7![United Airlines logo]()
$587
This United Airlines deal was found by Cheapflights users on 11/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/188:45 am -
2 stops16h 30m
Tue 12/15:35 pm -
1 stop12h 57m
Deal found 11/11![United Airlines logo]()
$583
This United Airlines deal was found by Cheapflights users on 11/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/202:25 pm -
1 stop30h 52m
Tue 12/19:01 am -
1 stop21h 31m
Deal found 11/11![United Airlines logo]()
$600
This United Airlines deal was found by Cheapflights users on 11/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/239:40 am -
1 stop10h 53m
Fri 11/277:05 am -
1 stop11h 34m
Deal found 11/11![United Airlines logo]()
$631
This American Airlines deal was found by Cheapflights users on 11/10. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/42:00 pm -
1 stop12h 59m
Thu 3/49:14 pm -
1 stop12h 14m
Deal found 11/10![American Airlines logo]()
$566
This American Airlines deal was found by Cheapflights users on 11/8. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/93:54 pm -
2 stops19h 49m
Mon 3/811:29 pm -
2 stops12h 20m
Deal found 11/8![American Airlines logo]()
$606
This United Airlines deal was found by Cheapflights users on 11/8. 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 12/102:25 pm -
1 stop10h 26m
Sat 3/61:16 pm -
1 stop17h 16m
Deal found 11/8![United Airlines logo]()
$578
This American Airlines deal was found by Cheapflights users on 11/11. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/106:07 am -
2 stops18h 31m
Mon 3/811:29 pm -
2 stops12h 20m
Deal found 11/11![American Airlines logo]()
$601
This Air Canada deal was found by Cheapflights users on 11/9. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/183:10 pm -
1 stop31h 49m
Tue 1/1210:10 am -
2 stops26h 15m
Deal found 11/9![Air Canada logo]()
$717
This Sun Country Air deal was found by Cheapflights users on 11/10. 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 Sun Country Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/204:05 pm -
1 stop20h 24m
Sun 1/36:28 pm -
1 stop18h 24m
Deal found 11/10![Sun Country Air logo]()
$603
This Delta deal was found by Cheapflights users on 11/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/228:40 am -
1 stop15h 32m
Tue 12/295:36 pm -
1 stop11h 39m
Deal found 11/10![Delta logo]()
$632
This United Airlines deal was found by Cheapflights users on 11/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/236:40 am -
2 stops16h 00m
Wed 1/610:21 am -
1 stop20h 11m
Deal found 11/11![United Airlines logo]()
$569
One-way flights from Costa Rica to SeattleSearch for one-way flight options from Costa Rica to Seattle. Find affordable one-way fares based on user searches. Data last updated November 12, 2026.
Search for one-way flight options from Costa Rica to Seattle. Find affordable one-way fares based on user searches. Data last updated November 12, 2026.
This Orbitz deal was found by Cheapflights users on 11/11. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/241:26 am -
1 stop17h 32m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/11![Alaska Airlines logo]()
$319
This Alaska Airlines deal was found by Cheapflights users on 11/9. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/251:26 am -
2 stops31h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/9![Alaska Airlines logo]()
$329
This Volaris deal was found by Cheapflights users on 11/11. 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 Volaris is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/103:00 pm -
1 stop21h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/11![Multiple Airlines logo]()
$330
This Sun Country Air deal was found by Cheapflights users on 11/11. 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 Sun Country Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/204:05 pm -
1 stop20h 24m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/11![Sun Country Air logo]()
$338
This United Airlines deal was found by Cheapflights users on 11/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/58:45 am -
1 stop12h 47m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/10![United Airlines logo]()
$341
This United Airlines deal was found by Cheapflights users on 11/8. 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 3/178:40 am -
1 stop17h 09m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/8![United Airlines logo]()
$345
This United Airlines deal was found by Cheapflights users on 11/7. 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.
Wed 12/2312:35 pm -
3 stops29h 57m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/7![United Airlines logo]()
$346
This United Airlines deal was found by Cheapflights users on 11/9. 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.
Tue 2/238:45 am -
2 stops15h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/9![United Airlines logo]()
$350
This American Airlines deal was found by Cheapflights users on 11/8. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/136:07 am -
1 stop20h 52m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/8![American Airlines logo]()
$351
This American Airlines deal was found by Cheapflights users on 11/9. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/153:00 pm -
1 stop22h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/9![American Airlines logo]()
$359
This Kiwi.com deal was found by Cheapflights users on 11/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/302:30 am -
2 stops35h 59m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/10![Multiple Airlines logo]()
$363
This Trip.com deal was found by Cheapflights users on 11/11. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/223:10 pm -
1 stop31h 49m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/11![Air Canada logo]()
$373
Find flight deals from Costa Rica to Seattle
Keep the following information in mind while searching for Costa Rica to Seattle flight deals. Data was last updated November 12, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $566 (American Airlines) |
One-way from | $319 (Orbitz) |
Popular in | June |
Cheapest in | February |
Average price | $577 |
Cheapflights Fare Finder
Customize your flight search to find flights from Costa Rica to Seattle 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 November 12, 2026.
Use the filters below to find and compare flights from Costa Rica to Seattle that are best for you.
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Cheapest round-trip
San JoséSeattle
SJO San José Juan Santamaria Intl - SEA Seattle/Tacoma Intl
SJOSEA
San José Juan Santamaria Intl
Wed 11/25
1:26 am-4:58 pm
1 stop17h 32m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$319
San JoséSeattle
SJO San José Juan Santamaria Intl - SEA Seattle/Tacoma Intl
SJOSEA
San José Juan Santamaria Intl
Thu 12/10
3:00 pm-10:10 am
1 stop21h 10m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$330
LiberiaSeattle
LIR Liberia - SEA Seattle/Tacoma Intl
LIRSEA
Liberia
Sun 12/20
4:05 pm-10:29 am
1 stop20h 24m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$338
San JoséSeattle
SJO San José Juan Santamaria Intl - SEA Seattle/Tacoma Intl
SJOSEA
San José Juan Santamaria Intl
Thu 12/10
8:45 am-11:44 pm
2 stops16h 59m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$341
San JoséSeattle
SJO San José Juan Santamaria Intl - SEA Seattle/Tacoma Intl
SJOSEA
San José Juan Santamaria Intl
Wed 12/23
1:25 pm-12:28 pm
1 stop25h 03m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$341
San JoséSeattle
SJO San José Juan Santamaria Intl - SEA Seattle/Tacoma Intl
SJOSEA
San José Juan Santamaria Intl
Sat 12/5
8:45 am-9:21 pm
2 stops14h 36m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$341
San JoséSeattle
SJO San José Juan Santamaria Intl - SEA Seattle/Tacoma Intl
SJOSEA
San José Juan Santamaria Intl
Tue 3/2
9:40 am-2:30 pm
1 stop30h 50m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$341
Quickest round-trip
San JoséSeattle
SJO San José Juan Santamaria Intl - SEA Seattle/Tacoma Intl
SJOSEA
San José Juan Santamaria Intl
Wed 12/23
3:08 pm-11:59 pm
1 stop10h 51m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$345
San JoséSeattle
SJO San José Juan Santamaria Intl - SEA Seattle/Tacoma Intl
SJOSEA
San José Juan Santamaria Intl
Wed 3/17
12:25 pm-10:06 am
2 stops22h 41m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$346
San JoséSeattle
SJO San José Juan Santamaria Intl - SEA Seattle/Tacoma Intl
SJOSEA
San José Juan Santamaria Intl
Tue 2/23
8:45 am-10:05 pm
2 stops15h 20m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$350
Showing 1-10 of 37 resultsSorted by cheapest first
Best time to book a flight from Costa Rica to Seattle
Have a flexible travel schedule? Discover the best time to fly to Seattle from Costa Rica with our price prediction graph.
SJO-SEA
LIR-SEA
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 Costa Rica to Seattle
CR0-SEA
SJO-SEA
LIR-SEA
What is the cheapest month to book a flight from Costa Rica to Seattle?
Currently, February is the cheapest month in which you can book a flight from Costa Rica to Seattle (average of $533). Flying from Costa Rica to Seattle in June is currently the most expensive (average of $694). 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 far ahead should I book a flight from Costa Rica to Seattle?
To ensure you get the cheapest price possible for a flight from Costa Rica to Seattle, you should look to book at least 73 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
Reviews of airlines servicing Seattle
Get insights into the airlines that provide service to Seattle. 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 Seattle. Reviews last updated November 12, 2026.
Read reviews from past customers who have flown Southwest,Alaska Airlines, andUnited Airlines from Costa Rica to Seattle. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Overall
8.0
Boarding
8.1
Food
7.0
Entertainment
7.5
Crew
8.6
Comfort
8.0
Reviews
1 / 20
8.0
ExcellentPatricia,Oct 2026
DAL - TPA
Overall
8.0
Boarding
8.1
Food
7.0
Entertainment
7.5
Crew
8.6
Comfort
8.0
Reviews
1 / 20
8.0
ExcellentPatricia,Oct 2026
DAL - TPA
Overall
8.0
Boarding
8.1
Food
7.0
Entertainment
7.5
Crew
8.6
Comfort
8.0
Reviews
1 / 20
8.0
ExcellentPatricia,Oct 2026
DAL - TPA
Overall
8.0
Boarding
8.1
Food
7.0
Entertainment
7.5
Crew
8.6
Comfort
8.0
Reviews
1 / 20
8.0
ExcellentPatricia,Oct 2026
DAL - TPA
Overall
8.0
Boarding
8.1
Food
7.0
Entertainment
7.5
Crew
8.6
Comfort
8.0
Reviews
1 / 20
8.0
ExcellentPatricia,Oct 2026
DAL - TPA
Related info for your journey
Find useful and relevant information for your journey from Costa Rica to Seattle. 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 Seattle?
Book flights to Seattle if you plan to visit one of these locationsSeaTac
Renton
Lacey
Leavenworth
Tacoma
Tukwila
Snoqualmie
Puyallup
Lynnwood
Kent
Tumwater
Ocean Shores
Ellensburg
Issaquah
Olympia
Centralia
Lakewood
Poulsbo
Marysville
Shoreline
Browse thousands of different options on Cheapflights for your next trip
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Seattle flight routes
Alternative routes for Costa Rica to Seattle
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Seattle by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Costa Rica to Seattle by cabin class
Find flights from Costa Rica to Seattle, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Costa Rica and Seattle flights
Browse other Costa Rica and Seattle flight options. Last updated on November 12, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Other flights to Seattle
Explore flights to Seattle departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on November 12, 2026.
Top 4 airlines flying from Costa Rica to Seattle
Discover the top 4 airlines that operate flights from Costa Rica to Seattle. 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 November 12, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$376 | Average$628 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$464 | Average$708 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$511 | Average$688 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$537 | Average$675 | FlexibilityNo cancel fee | On-time69% |