Book Cheap Flights to Costa Rica on Alaska Airlines

Great Costa Rica one-way flight deals.*

$
Select...

Los Angeles (LAX)to

Liberia, CR (LIR)
Depart: Apr 14, 2024
From
$131*
Seen: 11 hours ago
One-way
|
Saver

Los Angeles (LAX)to

San Jose, CR (SJO)
Depart: Apr 13, 2024
From
$162*
Seen: 33 minutes ago
One-way
|
Saver

Seattle (SEA)to

San Jose, CR (SJO)
Depart: Apr 16, 2024
From
$304*
Seen: 5 hours ago
One-way
|
Saver

San Francisco (SFO)to

Liberia, CR (LIR)
Depart: Apr 9, 2024
From
$198*
Seen: 6 hours ago
One-way
|
Saver

*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.*

$
Select...
FromLos Angeles (LAX)ToLiberia, CR (LIR)One-way
|
Saver
Depart: May 17, 2024

From

$131*

Seen: 1 hour ago

FromLos Angeles (LAX)ToSan Jose, CR (SJO)One-way
|
Saver
Depart: May 12, 2024

From

$209*

Seen: 4 hours ago

FromSeattle (SEA)ToLiberia, CR (LIR)One-way
|
Saver
Depart: Aug 27, 2024

From

$221*

Seen: 27 minutes ago

FromSeattle (SEA)ToSan Jose, CR (SJO)One-way
|
Saver
Depart: May 21, 2024

From

$281*

Seen: 5 hours ago

FromSan Francisco (SFO)ToLiberia, CR (LIR)One-way
|
Saver
Depart: Oct 16, 2024

From

$171*

Seen: 7 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.