Nonstop flight route between Idaho Falls, Idaho, United States and Montague, California, United States:
Departure Airport:

Arrival Airport:

Distance from IDA to SIY:
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- About this route
- IDA Airport Information
- SIY Airport Information
- Facts about IDA
- Facts about SIY
- Map of Nearest Airports to IDA
- List of Nearest Airports to IDA
- Map of Furthest Airports from IDA
- List of Furthest Airports from IDA
- Map of Nearest Airports to SIY
- List of Nearest Airports to SIY
- Map of Furthest Airports from SIY
- List of Furthest Airports from SIY
About this route:
A direct, nonstop flight between Idaho Falls Regional Airport (IDA), Idaho Falls, Idaho, United States and Siskiyou County Airport (SIY), Montague, California, United States would travel a Great Circle distance of 541 miles (or 871 kilometers).
A Great Circle is the shortest distance between 2 points on a sphere. Because most world maps are flat (but the Earth is round), the route of the shortest distance between 2 points on the Earth will often appear curved when viewed on a flat map, especially for long distances. If you were to simply draw a straight line on a flat map and measure a very long distance, it would likely be much further than if you were to lay a string between those two points on a globe. Because of the relatively short distance between Idaho Falls Regional Airport and Siskiyou County Airport, the route shown on this map most likely still appears to be a straight line.
Departure Airport Information:
IATA / ICAO Codes: | IDA / KIDA |
Airport Names: |
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Location: | Idaho Falls, Idaho, United States |
GPS Coordinates: | 43°30'48"N by 112°4'14"W |
Area Served: | Idaho Falls, Idaho |
Operator/Owner: | City of Idaho Falls |
Airport Type: | Public |
Elevation: | 4744 feet (1,446 meters) |
# of Runways: | 2 |
View all routes: | Routes from IDA |
More Information: | IDA Maps & Info |
Arrival Airport Information:
IATA / ICAO Codes: | SIY / KSIY |
Airport Names: |
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Location: | Montague, California, United States |
GPS Coordinates: | 41°46'53"N by 122°28'5"W |
Operator/Owner: | Siskiyou County |
Airport Type: | Public |
Elevation: | 2648 feet (807 meters) |
# of Runways: | 1 |
View all routes: | Routes from SIY |
More Information: | SIY Maps & Info |
Facts about Idaho Falls Regional Airport (IDA):
- Idaho Falls Regional Airport (IDA) has 2 runways.
- Idaho Falls Regional Airport is a city owned, public use airport located two nautical miles northwest of the central business district of Idaho Falls, a city in Bonneville County, Idaho, United States.
- The closest airport to Idaho Falls Regional Airport (IDA) is Dubois Municipal Airport (DBS), which is located 45 miles (73 kilometers) N of IDA.
- In addition to being known as "Idaho Falls Regional Airport", another name for IDA is "Fanning Field".
- Because of Idaho Falls Regional Airport's high elevation of 4,744 feet, planes must typically fly at a faster airspeed in order to takeoff or land at IDA. Combined with a high temperature, this could make IDA a "Hot & High" airport, where the air density is lower than it would otherwise be at sea level.
- The furthest airport from Idaho Falls Regional Airport (IDA) is Sir Gaëtan Duval Airport (RRG), which is located 10,774 miles (17,339 kilometers) away in Rodrigues Island, Mauritius.
Facts about Siskiyou County Airport (SIY):
- The Air Force ended their dispersal program at Siskiyou County Airport by 19 July 1971 as part of the phase-down of the ADC interceptor forces, reporting the land as excess to the General Services Administration.
- The closest airport to Siskiyou County Airport (SIY) is Montague Airport-Yreka Rohrer Field (RKC), which is located only 5 miles (9 kilometers) SW of SIY.
- The United States Army Air Forces first leased the Siskiyou County Airport on 18 November 1942.
- The furthest airport from Siskiyou County Airport (SIY) is Tôlanaro Airport (FTU), which is located 11,131 miles (17,914 kilometers) away in Tôlanaro, Madagascar.
- In addition to being known as "Siskiyou County Airport", other names for SIY include "Siskiyou County Air Force Auxiliary Airfield" and "Siskiyou County Army Air Field".
- Following the initial military use, commercial operations of the airport continued.
- Siskiyou County Airport (SIY) currently has only 1 runway.