Alaska Airlines Flights from Costa Rica to United States
Deals on one-way flights from Costa Rica to United States.*
San Jose, CR (SJO)to
Seattle (SEA)Liberia, CR (LIR)to
San Francisco (SFO)Liberia, CR (LIR)to
San Francisco (SFO)San Jose, CR (SJO)to
Portland (PDX)San Jose, CR (SJO)to
Portland (PDX)San Jose, CR (SJO)to
Portland (PDX)San Jose, CR (SJO)to
Portland (PDX)San Jose, CR (SJO)to
Portland (PDX)Liberia, CR (LIR)to
Portland (PDX)*Displayed prices have been available within the past 24 hours and may not be available at the time of booking. Fares listed may be Saver fares, which is our most restrictive fare option and subject to additional restrictions. For roundtrip journeys, the price displayed—available within the past 24 hours—is the aggregate of the lowest available fare each way. Additional baggage charges and fees for optional products and services may apply. Other terms and conditions may apply.
One-way low-fare flights Costa Rica to United States.*
From | To | Fare Type | Dates | Price | |
|---|---|---|---|---|---|
| San Jose, CR (SJO) | Portland (PDX) | One-way | Saver | Depart: Dec 17, 2026 | From $276 Seen: 8 hours ago | |
| Liberia, CR (LIR) | San Francisco (SFO) | One-way | Saver | Depart: Aug 10, 2026 | From $341 Seen: 1 hour ago | |
| Liberia, CR (LIR) | San Francisco (SFO) | One-way | Saver | Depart: Aug 11, 2026 | From $341 Seen: 3 hours ago | |
| Liberia, CR (LIR) | Portland (PDX) | One-way | Saver | Depart: Jun 13, 2026 | From $369 Seen: 8 hours ago | |
| Liberia, CR (LIR) | Seattle (SEA) | One-way | Saver | Depart: Jun 2, 2026 | From $375 Seen: 8 hours ago | |
| Liberia, CR (LIR) | Seattle (SEA) | One-way | Saver | Depart: Feb 28, 2027 | From $375 Seen: 1 hour ago | |
| San Jose, CR (SJO) | Seattle (SEA) | One-way | Saver | Depart: Feb 28, 2027 | From $397 Seen: 26 minutes ago | |
| Liberia, CR (LIR) | San Francisco (SFO) | One-way | Saver | Depart: Aug 2, 2026 | From $404 Seen: 2 hours ago | |
| San Jose, CR (SJO) | Seattle (SEA) | One-way | Saver | Depart: May 26, 2026 | From $442 Seen: 11 hours ago | |
| Liberia, CR (LIR) | Seattle (SEA) | One-way | Saver | Depart: Jul 12, 2026 | From $547 Seen: 12 hours ago | |
| San Jose, CR (SJO) | Portland (PDX) | One-way | Saver | Depart: Aug 23, 2026 | From $578 Seen: 6 hours ago | |
| San Jose, CR (SJO) | Seattle (SEA) | One-way | Saver | Depart: Jul 3, 2026 | From $1,226 Seen: 10 hours ago | |
| San Jose, CR (SJO) | Seattle (SEA) | One-way | Saver | Depart: Jun 2, 2026 | From $1,306 Seen: 9 hours ago |
*Displayed prices have been available within the past 24 hours and may not be available at the time of booking. Fares listed may be Saver fares, which is our most restrictive fare option and subject to additional restrictions. For roundtrip journeys, the price displayed—available within the past 24 hours—is the aggregate of the lowest available fare each way. Additional baggage charges and fees for optional products and services may apply. Other terms and conditions may apply.