Distance From Alta Sierra Airport to Ivato Airport

The distance from Alta Sierra Airport () to Ivato Airport (TNR) is 10874 miles or 17500 kilometers or 9443 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 Grass Valley ( United States ) to Antananarivo ( Madagascar )?

A one-way nonstop (direct) flight between Grass Valley and Antananarivo takes around 25 hours 0 minutes.

Estimated flight time from Alta Sierra Airport, Grass Valley, United States to Ivato Airport, Antananarivo, Madagascar is 25 hours 0 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 • - TNR

Kilometers		17500 km
Statute Miles		10874 miles
Nautical Miles		9443 nm
Avg. Time of Flight		25 hours 0 minutes

Alta Sierra Airport to Ivato Airport Flight Route Map - to TNR Flight Path

Location of Alta Sierra Airport & Ivato Airport is given below.
Click the map to view Grass Valley to Antananarivo nonstop flight path and travel direction.

Click to see flight route on Google Map between Grass Valley, United States and Antananarivo, Madagascar. .

Nonstop flight route between Grass Valley, United States and Antananarivo, Madagascar.

Time Difference Between the Airports • - TNR

Time difference between Grass Valley (United States) and Antananarivo (Madagascar) is 10 Hours.
Antananarivo time is 10 Hours ahead of Grass Valley.

Location	Local Time
Grass Valley (United States)	2026-09-16, 22:43:10 PDT
Antananarivo (Madagascar)	2026-09-17, 08:43:10 EAT

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

Alta Sierra Airport ( / 09CL) Grass Valley, United States

Destination

Ivato Airport (TNR / FMMI) Antananarivo, Madagascar