Distance From San Marcellino Airfield to Ontario International Airport

The distance from San Marcellino Airfield () to Ontario International Airport (ONT) is 7350 miles or 11828 kilometers or 6383 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 Castillejos ( Philippines ) to Ontario ( United States )?

A one-way nonstop (direct) flight between Castillejos and Ontario takes around 16 hours 53 minutes.

Estimated flight time from San Marcellino Airfield, Castillejos, Philippines to Ontario International Airport, Ontario, United States is 16 hours 53 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 • - ONT

Kilometers		11828 km
Statute Miles		7350 miles
Nautical Miles		6383 nm
Avg. Time of Flight		16 hours 53 minutes

San Marcellino Airfield to Ontario International Airport Flight Route Map - to ONT Flight Path

Location of San Marcellino Airfield & Ontario International Airport is given below.
Click the map to view Castillejos to Ontario nonstop flight path and travel direction.

Click to see flight route on Google Map between Castillejos, Philippines and Ontario, United States. .

Nonstop flight route between Castillejos, Philippines and Ontario, United States.

Time Difference Between the Airports • - ONT

Time difference between Castillejos (Philippines) and Ontario (United States) is 16 Hours.
Ontario time is 16 Hours behind Castillejos.

Location	Local Time
Castillejos (Philippines)	2025-12-18, 11:58:16 PST
Ontario (United States)	2025-12-17, 19:58:16 PST

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

San Marcellino Airfield ( / ) Castillejos, Philippines

Destination

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