Distance From Camp Pendleton MCAS (Munn Field) Airport to Guanacaste Airport

The distance from Camp Pendleton MCAS (Munn Field) Airport () to Guanacaste Airport (LIR) is 2554 miles or 4110 kilometers or 2218 nautical miles.

The distance shown below is direct flight distance between airports. Straight-line distance does not account for the surface between the two points. It is the distance a bird or airplane would travel between the two points when flying above the surface. The straight line distance is the direct route between two points, regardless of whether or not there are roads that connect them.

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How long does it take to travel from Oceanside ( United States ) to Liberia ( Costa Rica )?

A one-way nonstop (direct) flight between Oceanside and Liberia takes around 5 hours 52 minutes.

Estimated flight time from Camp Pendleton MCAS (Munn Field) Airport, Oceanside, United States to Guanacaste Airport, Liberia, Costa Rica is 5 hours 52 minutes under avarage conditions. Your actual flying time may vary depending on wind direction/speed or weather conditions. This calculation does not include the departure and landing times of the aircraft. In addition, it does not cover the person identity check, ticket check-in and baggage collection times at the airport.

Travel Distance Between the Airports • - LIR

Kilometers		4110 km
Statute Miles		2554 miles
Nautical Miles		2218 nm
Avg. Time of Flight		5 hours 52 minutes

Camp Pendleton MCAS (Munn Field) Airport to Guanacaste Airport Flight Route Map - to LIR Flight Path

Location of Camp Pendleton MCAS (Munn Field) Airport & Guanacaste Airport is given below.
Click the map to view Oceanside to Liberia nonstop flight path and travel direction.

Click to see flight route on Google Map between Oceanside, United States and Liberia, Costa Rica. .

Nonstop flight route between Oceanside, United States and Liberia, Costa Rica.

Time Difference Between the Airports • - LIR

Time difference between Oceanside (United States) and Liberia (Costa Rica) is 2 Hours.
Liberia time is 2 Hours ahead of Oceanside.

Location	Local Time
Oceanside (United States)	2025-12-13, 13:07:22 PST
Liberia (Costa Rica)	2025-12-13, 15:07:22 CST

Why should you arrive 3 hours before international flight? Flyers who are traveling to an international destination should arrive at the airport earlier than domestic flyers. This is because international flights can have additional check-in requirements, like passport verification, that need to be completed before you receive your boarding pass.

Origin

Camp Pendleton MCAS (Munn Field) Airport ( / KNFG) Oceanside, United States

Destination

Guanacaste Airport (LIR / MRLB) Liberia, Costa Rica