Distance From Ontario International Airport to Lennart Meri Tallinn Airport, ONT - TLL Distance

The distance from Ontario International Airport (ONT) to Lennart Meri Tallinn Airport (TLL) is 5631 miles or 9062 kilometers or 4890 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 Ontario ( United States ) to Tallinn ( Estonia )?

A one-way nonstop (direct) flight between Ontario and Tallinn takes around 12 hours 56 minutes.

Estimated flight time from Ontario International Airport, Ontario, United States to Lennart Meri Tallinn Airport, Tallinn, Estonia is 12 hours 56 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 - TLL

Kilometers		9062 km
Statute Miles		5631 miles
Nautical Miles		4890 nm
Avg. Time of Flight		12 hours 56 minutes

Ontario International Airport to Lennart Meri Tallinn Airport Flight Route Map - ONT to TLL Flight Path

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

Click to see flight route on Google Map between Ontario, United States and Tallinn, Estonia. .

Nonstop flight route between Ontario, United States and Tallinn, Estonia.

Time Difference Between the Airports • ONT - TLL

Time difference between Ontario (United States) and Tallinn (Estonia) is 10 Hours.
Tallinn time is 10 Hours ahead of Ontario.

Location	Local Time
Ontario (United States)	2025-12-13, 12:53:51 PST
Tallinn (Estonia)	2025-12-13, 22:53:51 EET

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

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

Destination

Lennart Meri Tallinn Airport (TLL / EETN) Tallinn, Estonia