Alaska Airlines Flights from United States to Costa Rica
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Deals on flights from United States to Costa Rica.*
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Los Angeles (LAX)to
Liberia, CR (LIR)Depart: Dec 6, 2026
From
$320
Seen: 10 hours ago
One-way
Saver
Los Angeles (LAX)to
Liberia, CR (LIR)Depart: Dec 7, 2026
From
$320
Seen: 10 hours ago
One-way
Saver
Los Angeles (LAX)to
Liberia, CR (LIR)Depart: Nov 30, 2026
From
$334
Seen: 10 hours ago
One-way
Saver
Los Angeles (LAX)to
Liberia, CR (LIR)Depart: Nov 25, 2026
From
$334
Seen: 10 hours ago
One-way
Saver
Los Angeles (LAX)to
Liberia, CR (LIR)Depart: Nov 26, 2026
From
$334
Seen: 10 hours ago
One-way
Saver
Los Angeles (LAX)to
San Jose, CR (SJO)Depart: Nov 27, 2026
From
$328
Seen: 10 hours ago
One-way
Saver
Los Angeles (LAX)to
San Jose, CR (SJO)Depart: Dec 5, 2026
From
$328
Seen: 10 hours ago
One-way
Saver
Los Angeles (LAX)to
San Jose, CR (SJO)Depart: Nov 28, 2026
From
$328
Seen: 10 hours ago
One-way
Saver
Los Angeles (LAX)to
San Jose, CR (SJO)Depart: Nov 17, 2026
From
$328
Seen: 10 hours ago
One-way
Saver
Los Angeles (LAX)to
San Jose, CR (SJO)Depart: Nov 14, 2026
From
$328
Seen: 10 hours ago
One-way
Saver
Seattle (SEA)to
San Jose, CR (SJO)Depart: Nov 27, 2026
From
$314
Seen: 9 hours ago
One-way
Saver
Seattle (SEA)to
San Jose, CR (SJO)Depart: Nov 26, 2026
From
$329
Seen: 9 hours ago
One-way
Saver
Seattle (SEA)to
San Jose, CR (SJO)Depart: Nov 28, 2026
From
$375
Seen: 9 hours ago
One-way
Saver
Seattle (SEA)to
San Jose, CR (SJO)Depart: Nov 14, 2026
From
$375
Seen: 9 hours ago
One-way
Saver
Seattle (SEA)to
San Jose, CR (SJO)Depart: Nov 13, 2026
From
$380
Seen: 9 hours ago
One-way
Saver
Seattle (SEA)to
Liberia, CR (LIR)Depart: Dec 7, 2026
From
$401
Seen: 9 hours ago
One-way
Saver
Seattle (SEA)to
Liberia, CR (LIR)Depart: Dec 6, 2026
From
$401
Seen: 9 hours ago
One-way
Saver
Seattle (SEA)to
Liberia, CR (LIR)Depart: Nov 27, 2026
From
$418
Seen: 9 hours ago
One-way
Saver
Seattle (SEA)to
Liberia, CR (LIR)Depart: Nov 28, 2026
From
$418
Seen: 9 hours ago
One-way
Saver
Seattle (SEA)to
Liberia, CR (LIR)Depart: Dec 5, 2026
From
$487
Seen: 9 hours ago
One-way
Saver
*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 United States to Costa Rica.*
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From | To | Fare Type | Dates | Price | |
|---|---|---|---|---|---|
| Los Angeles (LAX) | Liberia, CR (LIR) | One-way | Saver | Depart: Jan 11, 2027 | From $229 Seen: 10 hours ago | |
| Los Angeles (LAX) | Liberia, CR (LIR) | One-way | Saver | Depart: Jan 23, 2027 | From $229 Seen: 10 hours ago | |
| Los Angeles (LAX) | Liberia, CR (LIR) | One-way | Saver | Depart: Feb 4, 2027 | From $229 Seen: 10 hours ago | |
| Los Angeles (LAX) | Liberia, CR (LIR) | One-way | Saver | Depart: Feb 17, 2027 | From $229 Seen: 10 hours ago | |
| Los Angeles (LAX) | Liberia, CR (LIR) | One-way | Saver | Depart: Feb 18, 2027 | From $229 Seen: 10 hours ago | |
| Los Angeles (LAX) | Liberia, CR (LIR) | One-way | Saver | Depart: Feb 19, 2027 | From $229 Seen: 10 hours ago | |
| San Francisco (SFO) | Liberia, CR (LIR) | One-way | Saver | Depart: Jan 16, 2027 | From $273 Seen: 10 hours ago | |
| San Francisco (SFO) | Liberia, CR (LIR) | One-way | Saver | Depart: Feb 16, 2027 | From $273 Seen: 10 hours ago | |
| San Francisco (SFO) | Liberia, CR (LIR) | One-way | Saver | Depart: Feb 23, 2027 | From $273 Seen: 10 hours ago | |
| San Francisco (SFO) | Liberia, CR (LIR) | One-way | Saver | Depart: Feb 24, 2027 | From $273 Seen: 10 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.