Getting to Costa Rica

International Flights: Arrive at Aeropuerto Internacional Juan Santamaría, 17km (10.5mi) northwest of San José in the town of Alajuela. Daniel Oduber airport in Liberia has started receiving international flights from the US. This airport is convenient for travelers visiting the Península de Nicoya.
The Tobias Bolaños Airport located in Pavas, San José, for local as well as international flights. There are also landing fields for local flights situated in different parts of the country such as: Limon, Tortuguero, La Fortuna, Tamarindo, Samara, Tambor, Quepos, Palmar North, Golfito, and San Vito
Costa Rica shares land borders with Nicaragua and Panama. Many travelers, particularly shoestringers, enter the country by bus. An extensive bus system links the Central American capitals and it's vastly cheaper than flying.

Bus: If crossing borders by bus, note that international buses may cost slightly more than taking a local bus, then another onwards, from the border, but they're worth it. These better-quality buses travel faster and can help you cross efficiently. The most popular crossing point between Nicaragua and Costa Rica is on the Interamericana at Peñas Blancas. While processing is slow, travelers report that, for the most part, it's hassle-free. The crossing at Los Chiles, further east, is infrequently used but reportedly easy to navigate. For Panama, the main point is on the Interamericana at Paso Canoas. Expect long lines, generally free of complications. On the Caribbean side, the crossing at Sixaola is much more sedate.

Boat: There is a regular boat service connecting Los Chiles with San Carlos, on the southeast corner of Lake Nicaragua.

Air :The national airline, Lacsa (part of the Central American Airline consortium Grupo TACA), flies to numerous points in the US and Latin America, including Cuba. The US Federal Aviation Administration has assessed Costa Rica's aviation authorities to be in compliance with international safety standards. Fares go up during the high season (from December through April).