Distance From City of Derry Airport to Ontario International Airport, LDY - ONT Distance

The distance from City of Derry Airport (LDY) to Ontario International Airport (ONT) is 5041 miles or 8112 kilometers or 4377 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.

---

How long does it take to travel from Derry ( United Kingdom ) to Ontario ( United States )?

A one-way nonstop (direct) flight between Derry and Ontario takes around 11 hours 35 minutes.

Estimated flight time from City of Derry Airport, Derry, United Kingdom to Ontario International Airport, Ontario, United States is 11 hours 35 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 • LDY - ONT

Kilometers		8112 km
Statute Miles		5041 miles
Nautical Miles		4377 nm
Avg. Time of Flight		11 hours 35 minutes

City of Derry Airport to Ontario International Airport Flight Route Map - LDY to ONT Flight Path

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

Click to see flight route on Google Map between Derry, United Kingdom and Ontario, United States. .

Nonstop flight route between Derry, United Kingdom and Ontario, United States.

Time Difference Between the Airports • LDY - ONT

Time difference between Derry (United Kingdom) and Ontario (United States) is 8 Hours.
Ontario time is 8 Hours behind Derry.

Location	Local Time
Derry (United Kingdom)	2025-01-05, 06:53:07 GMT
Ontario (United States)	2025-01-04, 22:53:07 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

City of Derry Airport (LDY / EGAE) Derry, United Kingdom

Destination

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