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: May 5, 2026
From
$79
Seen: 9 hours ago
One-way
Economy
Portland (PDX)to
Los Angeles (LAX)Depart: Apr 29, 2026
From
$89
Seen: 9 hours ago
One-way
Economy
San Francisco (SFO)to
Los Angeles (LAX)Depart: Mar 22, 2026
From
$16
Seen: 1 hour ago
One-way
Economy
Honolulu (HNL)to
Los Angeles (LAX)Depart: Apr 29, 2026
From
$119
Seen: 9 hours ago
One-way
Economy
Newark (EWR)to
Los Angeles (LAX)Depart: Apr 18, 2026
From
$119
Seen: 9 hours ago
One-way
Economy
Anchorage (ANC)to
Los Angeles (LAX)Depart: Apr 20, 2026
From
$148
Seen: 9 hours ago
One-way
Economy
Washington, D.C. (DCA)to
Los Angeles (LAX)Depart: May 2, 2026
From
$31
Seen: 2 hours ago
One-way
Economy
Santa Rosa (STS)to
Los Angeles (LAX)Depart: Apr 2, 2026
From
$79
Seen: 9 hours ago
One-way
Economy
Spokane (GEG)to
Los Angeles (LAX)Depart: Apr 18, 2026
From
$89
Seen: 9 hours ago
One-way
Economy
Everett (PAE)to
Los Angeles (LAX)Depart: May 6, 2026
From
$79
Seen: 9 hours ago
One-way
Economy
Great Costa Rica one-way flight deals.*
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$
Los Angeles (LAX)to
Liberia, CR (LIR)Depart: Mar 24, 2026
From
$256
Seen: 1 minute ago
One-way
Economy
Los Angeles (LAX)to
San Jose, CR (SJO)Depart: Mar 9, 2026
From
$240
Seen: 9 hours ago
One-way
Economy
Seattle (SEA)to
Liberia, CR (LIR)Depart: Mar 28, 2026
From
$284
Seen: 3 hours ago
One-way
Economy
Seattle (SEA)to
San Jose, CR (SJO)Depart: Mar 16, 2026
From
$280
Seen: 4 minutes ago
One-way
Economy
San Francisco (SFO)to
Liberia, CR (LIR)Depart: Mar 9, 2026
From
$771
Seen: 26 minutes ago
One-way
Economy
Portland (PDX)to
Liberia, CR (LIR)Depart: Mar 14, 2026
From
$633
Seen: 11 hours ago
One-way
Economy
Portland (PDX)to
San Jose, CR (SJO)Depart: Mar 8, 2026
From
$352
Seen: 9 hours ago
One-way
Economy
Anchorage (ANC)to
Liberia, CR (LIR)Depart: Mar 16, 2026
From
$351
Seen: 11 hours ago
One-way
Economy
*Prices have been available for one-way trips within the last 48 hours and may not be currently available. Fares listed may be Saver fares which is our most restrictive fare option and subject to additional restrictions. Additional baggage charges and fees for optional products and services may apply. Other terms and conditions may apply.
One-way offers for plane tickets to Costa Rica.*
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$
From | To | Fare Type | Dates | Price |
|---|---|---|---|---|
| Los Angeles (LAX) | Liberia, CR (LIR) | One-way | Economy | Depart: May 10, 2026 | From $149 Seen: 14 hours ago |
| Los Angeles (LAX) | San Jose, CR (SJO) | One-way | Economy | Depart: Apr 19, 2026 | From $199 Seen: 9 hours ago |
| Seattle (SEA) | Liberia, CR (LIR) | One-way | Economy | Depart: May 3, 2026 | From $230 Seen: 3 hours ago |
| Seattle (SEA) | San Jose, CR (SJO) | One-way | Economy | Depart: Apr 20, 2026 | From $204 Seen: 9 hours ago |
| San Francisco (SFO) | Liberia, CR (LIR) | One-way | Economy | Depart: Sep 8, 2026 | From $279 Seen: 4 hours ago |
| Anchorage (ANC) | Liberia, CR (LIR) | One-way | Economy | Depart: Apr 30, 2026 | From $280 Seen: 13 hours ago |
| Anchorage (ANC) | San Jose, CR (SJO) | One-way | Economy | Depart: Nov 10, 2026 | From $301 Seen: 17 hours ago |
| San Diego (SAN) | San Jose, CR (SJO) | One-way | Economy | Depart: May 20, 2026 | From $656 Seen: 14 hours ago |
| San Jose (SJC) | San Jose, CR (SJO) | One-way | Economy | Depart: Jul 15, 2026 | From $550 Seen: 3 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.