Book Cheap Flights to Costa Rica on 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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$
Seattle (SEA)to
Los Angeles (LAX)Depart: Apr 22, 2026
From
$89
Seen: 12 hours ago
One-way
Economy
San Francisco (SFO)to
Los Angeles (LAX)Depart: Apr 29, 2026
From
$59
Seen: 12 hours ago
One-way
Economy
Portland (PDX)to
Los Angeles (LAX)Depart: Feb 7, 2026
From
$89
Seen: 12 hours ago
One-way
Economy
Honolulu (HNL)to
Los Angeles (LAX)Depart: Feb 5, 2026
From
$79
Seen: 1 hour ago
One-way
Economy
Newark (EWR)to
Los Angeles (LAX)Depart: Feb 10, 2026
From
$99
Seen: 12 minutes ago
One-way
Economy
Everett (PAE)to
Los Angeles (LAX)Depart: Mar 3, 2026
From
$89
Seen: 12 hours ago
One-way
Economy
Washington, D.C. (DCA)to
Los Angeles (LAX)Depart: Feb 7, 2026
From
$134
Seen: 12 hours ago
One-way
Economy
Anchorage (ANC)to
Los Angeles (LAX)Depart: Feb 13, 2026
From
$36
Seen: 1 hour ago
One-way
Economy
Spokane (GEG)to
Los Angeles (LAX)Depart: Mar 14, 2026
From
$89
Seen: 12 hours ago
One-way
Economy
Santa Rosa (STS)to
Los Angeles (LAX)Depart: Apr 29, 2026
From
$79
Seen: 12 hours ago
One-way
Economy
Great Costa Rica one-way flight deals.*
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$
Los Angeles (LAX)to
Liberia, CR (LIR)Depart: Jan 30, 2026
From
$241
Seen: 1 hour ago
One-way
Economy
Los Angeles (LAX)to
San Jose, CR (SJO)Depart: Jan 27, 2026
From
$205
Seen: 12 hours ago
One-way
Economy
Seattle (SEA)to
San Jose, CR (SJO)Depart: Jan 27, 2026
From
$284
Seen: 12 hours ago
One-way
Economy
Seattle (SEA)to
Liberia, CR (LIR)Depart: Jan 22, 2026
From
$350
Seen: 15 hours ago
One-way
Economy
San Francisco (SFO)to
Liberia, CR (LIR)Depart: Jan 31, 2026
From
$296
Seen: 1 hour ago
One-way
Economy
Portland (PDX)to
San Jose, CR (SJO)Depart: Feb 6, 2026
From
$792
Seen: 3 hours ago
One-way
Economy
San Francisco (SFO)to
San Jose, CR (SJO)Depart: Feb 8, 2026
From
$476
Seen: 5 hours ago
One-way
Economy
Anchorage (ANC)to
San Jose, CR (SJO)Depart: Jan 17, 2026
From
$1,136
Seen: 8 hours ago
One-way
Economy
*Prices have been available for one-way trips within the last 48 hours and may not be currently available. Fares listed may be Saver fares which is our most restrictive fare option and subject to additional restrictions. Additional baggage charges and fees for optional products and services may apply. Other terms and conditions may apply.
One-way offers for plane tickets to Costa Rica.*
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$
From | To | Fare Type | Dates | Price |
|---|---|---|---|---|
| Los Angeles (LAX) | Liberia, CR (LIR) | One-way | Economy | Depart: Mar 2, 2026 | From $139 Seen: 1 hour ago |
| Los Angeles (LAX) | San Jose, CR (SJO) | One-way | Economy | Depart: Apr 19, 2026 | From $149 Seen: 12 hours ago |
| Seattle (SEA) | San Jose, CR (SJO) | One-way | Economy | Depart: Mar 10, 2026 | From $189 Seen: 12 hours ago |
| Seattle (SEA) | Liberia, CR (LIR) | One-way | Economy | Depart: Mar 2, 2026 | From $220 Seen: 6 hours ago |
| San Francisco (SFO) | Liberia, CR (LIR) | One-way | Economy | Depart: Feb 23, 2026 | From $153 Seen: 1 minute ago |
| Portland (PDX) | Liberia, CR (LIR) | One-way | Economy | Depart: Dec 13, 2026 | From $167 Seen: 2 hours ago |
| Portland (PDX) | San Jose, CR (SJO) | One-way | Economy | Depart: Mar 13, 2026 | From $380 Seen: 7 hours ago |
| Anchorage (ANC) | Liberia, CR (LIR) | One-way | Economy | Depart: Mar 16, 2026 | From $270 Seen: 16 hours ago |
| Spokane (GEG) | Liberia, CR (LIR) | One-way | Economy | Depart: May 2, 2026 | From $222 Seen: 5 hours ago |
| San Diego (SAN) | Liberia, CR (LIR) | One-way | Economy | Depart: Apr 14, 2026 | From $211 Seen: 15 hours ago |
| San Diego (SAN) | San Jose, CR (SJO) | One-way | Economy | Depart: Mar 11, 2026 | From $240 Seen: 2 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.