Nonstop flight route between Saipan Island, Northern Mariana Islands and Sidney, Montana, United States:
Departure Airport:

Arrival Airport:

Distance from SPN to SDY:
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- About this route
- SPN Airport Information
- SDY Airport Information
- Facts about SPN
- Facts about SDY
- Map of Nearest Airports to SPN
- List of Nearest Airports to SPN
- Map of Furthest Airports from SPN
- List of Furthest Airports from SPN
- Map of Nearest Airports to SDY
- List of Nearest Airports to SDY
- Map of Furthest Airports from SDY
- List of Furthest Airports from SDY
About this route:
A direct, nonstop flight between Saipan International Airport (SPN), Saipan Island, Northern Mariana Islands and Sidney-Richland Municipal Airport (SDY), Sidney, Montana, United States would travel a Great Circle distance of 6,338 miles (or 10,199 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 large distance between Saipan International Airport and Sidney-Richland Municipal Airport, the route shown on this map most likely appears curved because of this reason.
Try it at home! Get a globe and tightly lay a string between Saipan International Airport and Sidney-Richland Municipal Airport. You'll see that it will travel the same route of the red line on this map!
Departure Airport Information:
IATA / ICAO Codes: | SPN / PGSN |
Airport Names: |
|
Location: | Saipan Island, Northern Mariana Islands |
GPS Coordinates: | 15°7'8"N by 145°43'45"E |
Operator/Owner: | Commonwealth Ports Authority |
Airport Type: | Public |
Elevation: | 215 feet (66 meters) |
# of Runways: | 1 |
View all routes: | Routes from SPN |
More Information: | SPN Maps & Info |
Arrival Airport Information:
IATA / ICAO Codes: | SDY / KSDY |
Airport Name: | Sidney-Richland Municipal Airport |
Location: | Sidney, Montana, United States |
GPS Coordinates: | 47°42'24"N by 104°11'32"W |
Area Served: | Sidney, Montana |
Operator/Owner: | Sidney Richland Airport Authority |
Airport Type: | Public |
Elevation: | 1985 feet (605 meters) |
# of Runways: | 2 |
View all routes: | Routes from SDY |
More Information: | SDY Maps & Info |
Facts about Saipan International Airport (SPN):
- Japanese tourists began visiting Saipan in large numbers during the 1970s.
- The furthest airport from Saipan International Airport (SPN) is Salvador-Deputado Luís Eduardo Magalhães International Airport (2 de Julho) (SSA), which is nearly antipodal to Saipan International Airport (meaning Saipan International Airport is almost on the exact opposite side of the Earth from Salvador-Deputado Luís Eduardo Magalhães International Airport (2 de Julho)), and is located 12,125 miles (19,514 kilometers) away in Salvador, Bahia, Brazil.
- In addition to being known as "Saipan International Airport", other names for SPN include "Francisco C. Ada Airport" and "GSN".
- SPN was a sugarcane field before the Imperial Japanese Navy Air Service constructed a temporary landing field on the site in 1933.
- Saipan International Airport (SPN) currently has only 1 runway.
- Because of Saipan International Airport's relatively low elevation of 215 feet, planes can take off or land at Saipan International Airport at a lower air speed than at airports located at a higher elevation. This is because the air density is higher closer to sea level than it would otherwise be at higher elevations.
- Once in American hands, Isely Field was expanded considerably to support Twentieth Air Force B-29 Superfortress operations.
- The closest airport to Saipan International Airport (SPN) is Tinian International Airport (TIQ), which is located only 11 miles (18 kilometers) SW of SPN.
Facts about Sidney-Richland Municipal Airport (SDY):
- The furthest airport from Sidney-Richland Municipal Airport (SDY) is Sir Gaëtan Duval Airport (RRG), which is located 10,383 miles (16,711 kilometers) away in Rodrigues Island, Mauritius.
- The closest airport to Sidney-Richland Municipal Airport (SDY) is Sloulin Field International Airport (ISN), which is located 41 miles (67 kilometers) NE of SDY.
- Sidney-Richland Municipal Airport covers an area of 335 acres at an elevation of 1,985 feet above mean sea level.
- As per the Federal Aviation Administration, this airport had 2,031 passenger boardings in calendar year 2008, 2,766 in 2009, and 3,659 in 2010.
- Sidney-Richland Municipal Airport (SDY) has 2 runways.