How far is Unalaska, AK, from Block Island, RI?
The distance between Block Island (Block Island State Airport) and Unalaska (Unalaska Airport) is 4187 miles / 6738 kilometers / 3638 nautical miles.
Block Island State Airport – Unalaska Airport
Search flights
Distance from Block Island to Unalaska
There are several ways to calculate the distance from Block Island to Unalaska. Here are two standard methods:
Vincenty's formula (applied above)- 4186.916 miles
- 6738.189 kilometers
- 3638.331 nautical miles
Vincenty's formula calculates the distance between latitude/longitude points on the earth's surface using an ellipsoidal model of the planet.
Haversine formula- 4175.343 miles
- 6719.563 kilometers
- 3628.274 nautical miles
The haversine formula calculates the distance between latitude/longitude points assuming a spherical earth (great-circle distance – the shortest distance between two points).
How long does it take to fly from Block Island to Unalaska?
The estimated flight time from Block Island State Airport to Unalaska Airport is 8 hours and 25 minutes.
What is the time difference between Block Island and Unalaska?
Flight carbon footprint between Block Island State Airport (BID) and Unalaska Airport (DUT)
On average, flying from Block Island to Unalaska generates about 480 kg of CO2 per passenger, and 480 kilograms equals 1 058 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.
Map of flight path from Block Island to Unalaska
See the map of the shortest flight path between Block Island State Airport (BID) and Unalaska Airport (DUT).
Airport information
| Origin | Block Island State Airport |
|---|---|
| City: | Block Island, RI |
| Country: | United States  |
| IATA Code: | BID |
| ICAO Code: | KBID |
| Coordinates: | 41°10′5″N, 71°34′40″W |
| Destination | Unalaska Airport |
|---|---|
| City: | Unalaska, AK |
| Country: | United States |
| IATA Code: | DUT |
| ICAO Code: | PADU |
| Coordinates: | 53°54′0″N, 166°32′38″W |