Distance From Guanacaste Airport to Ontario International Airport, LIR - ONT Distance

The distance from Guanacaste Airport (LIR) to Ontario International Airport (ONT) is 2593 miles or 4172 kilometers or 2252 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 Liberia ( Costa Rica ) to Ontario ( United States )?

A one-way nonstop (direct) flight between Liberia and Ontario takes around 5 hours 57 minutes.

Estimated flight time from Guanacaste Airport, Liberia, Costa Rica to Ontario International Airport, Ontario, United States is 5 hours 57 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 - ONT

Kilometers		4172 km
Statute Miles		2593 miles
Nautical Miles		2252 nm
Avg. Time of Flight		5 hours 57 minutes

Guanacaste Airport to Ontario International Airport Flight Route Map - LIR to ONT Flight Path

Location of Guanacaste Airport & Ontario International Airport is given below.
Click the map to view Liberia to Ontario nonstop flight path and travel direction.

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

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

Time Difference Between the Airports • LIR - ONT

Time difference between Liberia (Costa Rica) and Ontario (United States) is 1 Hours.
Ontario time is 1 Hours behind Liberia.

Location	Local Time
Liberia (Costa Rica)	2026-03-13, 02:07:13 CST
Ontario (United States)	2026-03-13, 01:07:13 PDT

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

Guanacaste Airport (LIR / MRLB) Liberia, Costa Rica

Destination

Ontario International Airport (ONT / KONT) Ontario, United States