Distance From Cumbernauld Airport to Ontario International Airport

The distance from Cumbernauld Airport () to Ontario International Airport (ONT) is 5102 miles or 8211 kilometers or 4431 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 Cumbernauld ( United Kingdom ) to Ontario ( United States )?

A one-way nonstop (direct) flight between Cumbernauld and Ontario takes around 11 hours 43 minutes.

Estimated flight time from Cumbernauld Airport, Cumbernauld, United Kingdom to Ontario International Airport, Ontario, United States is 11 hours 43 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		8211 km
Statute Miles		5102 miles
Nautical Miles		4431 nm
Avg. Time of Flight		11 hours 43 minutes

Cumbernauld Airport to Ontario International Airport Flight Route Map - to ONT Flight Path

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

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

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

Time Difference Between the Airports • - ONT

Time difference between Cumbernauld (United Kingdom) and Ontario (United States) is 7 Hours.
Ontario time is 7 Hours behind Cumbernauld.

Location	Local Time
Cumbernauld (United Kingdom)	2026-03-19, 18:59:43 GMT
Ontario (United States)	2026-03-19, 11:59:43 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

Cumbernauld Airport ( / EGPG) Cumbernauld, United Kingdom

Destination

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