Book Cheap Flights from Costa Rica with Alaska Airlines
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1 Passenger
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DPA Name: DPA QA Test - Details / example to Los Angeles/LAX
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There are no fares that match your filter criteria. Please adjust your filters.
There are no fares that match your filter criteria. Please adjust your filters.Compare one-way airfares from Costa Rica.*
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San Jose, CR (SJO)to
Seattle (SEA)Depart: Mar 13, 2026
From
$331
Seen: 3 hours ago
One-way
Economy
Liberia, CR (LIR)to
Seattle (SEA)Depart: Mar 22, 2026
From
$429
Seen: 10 hours ago
One-way
Economy
Liberia, CR (LIR)to
San Francisco (SFO)Depart: Mar 26, 2026
From
$645
Seen: 13 hours ago
One-way
Economy
*Prices have been available for one-way trips within the last 48 hours and may not be currently available. Fares listed may be Saver fares which is our most restrictive fare option and subject to additional restrictions. Additional baggage charges and fees for optional products and services may apply. Other terms and conditions may apply.
Lowest one-way fares from Costa Rica.*
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From | To | Fare Type | Dates | Price |
|---|---|---|---|---|
| San Jose, CR (SJO) | Seattle (SEA) | One-way | Economy | Depart: May 19, 2026 | From $268 Seen: 3 hours ago |
| San Jose, CR (SJO) | Portland (PDX) | One-way | Economy | Depart: Dec 6, 2026 | From $270 Seen: 15 hours ago |
| Liberia, CR (LIR) | Seattle (SEA) | One-way | Economy | Depart: May 19, 2026 | From $294 Seen: 10 hours ago |
| Liberia, CR (LIR) | San Francisco (SFO) | One-way | Economy | Depart: May 13, 2026 | From $233 Seen: 17 hours ago |
| Liberia, CR (LIR) | Portland (PDX) | One-way | Economy | Depart: Jun 1, 2026 | From $295 Seen: 16 hours ago |
*Prices have been available for one-way trips within the last 48 hours and may not be currently available. Fares listed may be Saver fares which is our most restrictive fare option and subject to additional restrictions. Additional baggage charges and fees for optional products and services may apply. Other terms and conditions may apply.