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: Jun 3, 2026
From
$119
Seen: 3 hours ago
One-way
Economy
San Francisco (SFO)to
Los Angeles (LAX)Depart: Jul 7, 2026
From
$59
Seen: 3 hours ago
One-way
Economy
Portland (PDX)to
Los Angeles (LAX)Depart: Aug 25, 2026
From
$122
Seen: 3 hours ago
One-way
Economy
Honolulu (HNL)to
Los Angeles (LAX)Depart: Aug 19, 2026
From
$163
Seen: 3 hours ago
One-way
Economy
Newark (EWR)to
Los Angeles (LAX)Depart: Aug 29, 2026
From
$149
Seen: 3 hours ago
One-way
Economy
Anchorage (ANC)to
Los Angeles (LAX)Depart: May 30, 2026
From
$178
Seen: 3 hours ago
One-way
Economy
Washington, D.C. (DCA)to
Los Angeles (LAX)Depart: Aug 17, 2026
From
$154
Seen: 3 hours ago
One-way
Economy
Guatemala City (GUA)to
Los Angeles (LAX)Depart: Sep 16, 2026
From
$215
Seen: 12 hours ago
One-way
Economy
Spokane (GEG)to
Los Angeles (LAX)Depart: Jun 3, 2026
From
$109
Seen: 3 hours ago
One-way
Economy
Boise (BOI)to
Los Angeles (LAX)Depart: May 30, 2026
From
$119
Seen: 3 hours ago
One-way
Economy
Great Costa Rica one-way flight deals.*
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$
Los Angeles (LAX)to
Liberia, CR (LIR)Depart: May 23, 2026
From
$351
Seen: 17 hours ago
One-way
Economy
Los Angeles (LAX)to
San Jose, CR (SJO)Depart: May 11, 2026
From
$270
Seen: 3 hours ago
One-way
Economy
Seattle (SEA)to
San Jose, CR (SJO)Depart: May 19, 2026
From
$275
Seen: 3 hours ago
One-way
Economy
Portland (PDX)to
San Jose, CR (SJO)Depart: May 10, 2026
From
$344
Seen: 7 hours ago
One-way
Economy
*Prices have been available for one-way trips within the last 48 hours and may not be currently available. Fares listed may be Saver fares which is our most restrictive fare option and subject to additional restrictions. Additional baggage charges and fees for optional products and services may apply. Other terms and conditions may apply.
One-way offers for plane tickets to Costa Rica.*
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$
From | To | Fare Type | Dates | Price |
|---|---|---|---|---|
| Los Angeles (LAX) | Liberia, CR (LIR) | One-way | Economy | Depart: Jun 28, 2026 | From $296 Seen: 14 hours ago |
| Los Angeles (LAX) | San Jose, CR (SJO) | One-way | Economy | Depart: Aug 12, 2026 | From $270 Seen: 3 hours ago |
| Seattle (SEA) | San Jose, CR (SJO) | One-way | Economy | Depart: Aug 2, 2026 | From $275 Seen: 3 hours ago |
| San Francisco (SFO) | Liberia, CR (LIR) | One-way | Economy | Depart: Jun 14, 2026 | From $515 Seen: 1 hour ago |
| Portland (PDX) | San Jose, CR (SJO) | One-way | Economy | Depart: Jan 12, 2027 | From $483 Seen: 11 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.