Air Miles Calculator

Distance between Seattle, WA (BFI) and Alamosa, CO (ALS)

Distance from Seattle to Alamosa (Boeing Field – San Luis Valley Regional Airport) is 1087 miles / 1750 kilometers / 945 nautical miles.

How far is Alamosa from Seattle?

There are several ways to calculate distances between Seattle and Alamosa. Here are two common methods:

Vincenty's formula (applied above)
  • 1087.168 miles
  • 1749.627 kilometers
  • 944.723 nautical miles

Vincenty's formula calculates the distance between latitude/longitude points on the earth’s surface, using an ellipsoidal model of the earth.

Haversine formula
  • 1085.931 miles
  • 1747.637 kilometers
  • 943.648 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).

Flight duration

Estimated flight time from Boeing Field (BFI) to San Luis Valley Regional Airport (ALS) is 2 hours 33 minutes.

Time difference and current local times

The time difference between Seattle and Alamosa is 1 hour. Alamosa is 1 hour ahead of Seattle.

Time Difference

Seattle
Alamosa

Seattle, WA

 PDT

Alamosa, CO

 MDT

Carbon dioxide emissions

Estimated CO2 emissions per passenger is 156 kg (344 pounds).

Airport information


A Boeing Field
City: Seattle, WA
Country: United States Flag of United States
IATA Code: BFI
ICAO Code: KBFI
Coordinates: 47°31′47″N, 122°18′7″W

B San Luis Valley Regional Airport
City: Alamosa, CO
Country: United States Flag of United States
IATA Code: ALS
ICAO Code: KALS
Coordinates: 37°26′5″N, 105°52′1″W

Seattle to Alamosa flight path

Shortest flight path between Boeing Field (BFI) and San Luis Valley Regional Airport (ALS).

Frequent Flyer Miles Calculator

Seattle (BFI) → Alamosa (ALS).

Elite level bonus (%):
Booking class bonus (%):
Air miles:
1087
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
1087

Round trip?