Nonstop flight route between Alamosa, Colorado, United States and SeaTac (near Seattle and Tacoma), Washington, United States:
Departure Airport:

Arrival Airport:

Distance from ALS to SEA:
Share this route:
Jump to:
- About this route
- ALS Airport Information
- SEA Airport Information
- Facts about ALS
- Facts about SEA
- Map of Nearest Airports to ALS
- List of Nearest Airports to ALS
- Map of Furthest Airports from ALS
- List of Furthest Airports from ALS
- Map of Nearest Airports to SEA
- List of Nearest Airports to SEA
- Map of Furthest Airports from SEA
- List of Furthest Airports from SEA
About this route:
A direct, nonstop flight between San Luis Valley Regional Airport (ALS), Alamosa, Colorado, United States and Seattle–Tacoma International Airport (SEA), SeaTac (near Seattle and Tacoma), Washington, United States would travel a Great Circle distance of 1,083 miles (or 1,743 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 San Luis Valley Regional Airport and Seattle–Tacoma International Airport, the route shown on this map most likely still appears to be a straight line.
Departure Airport Information:
IATA / ICAO Codes: | ALS / KALS |
Airport Names: |
|
Location: | Alamosa, Colorado, United States |
GPS Coordinates: | 37°26'6"N by 105°51'59"W |
Area Served: | Alamosa, Colorado |
Operator/Owner: | City and County of Alamosa |
Airport Type: | Public |
Elevation: | 7539 feet (2,298 meters) |
# of Runways: | 2 |
View all routes: | Routes from ALS |
More Information: | ALS Maps & Info |
Arrival Airport Information:
IATA / ICAO Codes: | SEA / KSEA |
Airport Names: |
|
Location: | SeaTac (near Seattle and Tacoma), Washington, United States |
GPS Coordinates: | 47°26'56"N by 122°18'33"W |
Area Served: | Seattle; Tacoma, Washington, US |
Airport Type: | Public |
Elevation: | 433 feet (132 meters) |
# of Runways: | 3 |
View all routes: | Routes from SEA |
More Information: | SEA Maps & Info |
Facts about San Luis Valley Regional Airport (ALS):
- The closest airport to San Luis Valley Regional Airport (ALS) is Stevens Field (FAA: PSO) (PGO), which is located 66 miles (106 kilometers) W of ALS.
- San Luis Valley Regional Airport (ALS) has 2 runways.
- Because of San Luis Valley Regional Airport's high elevation of 7,539 feet, planes must typically fly at a faster airspeed in order to takeoff or land at ALS. Combined with a high temperature, this could make ALS a "Hot & High" airport, where the air density is lower than it would otherwise be at sea level.
- The airport covers 1,700 acres at an elevation of 7,539 feet.
- The furthest airport from San Luis Valley Regional Airport (ALS) is Sir Gaëtan Duval Airport (RRG), which is located 11,054 miles (17,790 kilometers) away in Rodrigues Island, Mauritius.
- In addition to being known as "San Luis Valley Regional Airport", another name for ALS is "Bergman Field".
Facts about Seattle–Tacoma International Airport (SEA):
- In addition to being known as "Seattle–Tacoma International Airport", another name for SEA is "Sea–Tac Airport".
- The two-story North Concourse added four new gate positions and a new wing 600 feet long and 30 feet wide.
- Seattle–Tacoma International Airport handled 34,776,666 passengers last year.
- A recurring problem at the airport is misidentification of the westernmost taxiway, Taxiway Tango, as a runway.
- Because of Seattle–Tacoma International Airport's relatively low elevation of 433 feet, planes can take off or land at Seattle–Tacoma 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.
- The closest airport to Seattle–Tacoma International Airport (SEA) is Renton Municipal Airport (RNT), which is located only 5 miles (9 kilometers) NE of SEA.
- The furthest airport from Seattle–Tacoma International Airport (SEA) is Tôlanaro Airport (FTU), which is located 10,781 miles (17,350 kilometers) away in Tôlanaro, Madagascar.
- The airport is also served both by the King County Metro bus system and Sound Transit regional express buses.
- The airport was constructed by the Port of Seattle in 1944 to serve civilians of the region, after the U.S.
- The top five carriers at the airport in number of passengers carried in 2012 were Alaska Airlines, Horizon Air, Delta Air Lines, Southwest Airlines, and United Airlines.
- Seattle–Tacoma International Airport (SEA) has 3 runways.