How far is Seattle, WA, from Waterloo, IA?

The distance between Waterloo (Waterloo Regional Airport) and Seattle (Seattle–Tacoma International Airport) is 1494 miles / 2404 kilometers / 1298 nautical miles.

The driving distance from Waterloo (ALO) to Seattle (SEA) is 1777 miles / 2859 kilometers, and travel time by car is about 31 hours 24 minutes.

Distance from Waterloo to Seattle

There are several ways to calculate the distance from Waterloo to Seattle. Here are two standard methods:

Vincenty's formula (applied above)

• 1493.732 miles
• 2403.929 kilometers
• 1298.018 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

• 1489.823 miles
• 2397.638 kilometers
• 1294.621 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 Waterloo to Seattle?

The estimated flight time from Waterloo Regional Airport to Seattle–Tacoma International Airport is 3 hours and 19 minutes.

What is the time difference between Waterloo and Seattle?

The time difference between Waterloo and Seattle is 2 hours. Seattle is 2 hours behind Waterloo.

Flight carbon footprint between Waterloo Regional Airport (ALO) and Seattle–Tacoma International Airport (SEA)

On average, flying from Waterloo to Seattle generates about 179 kg of CO2 per passenger, and 179 kilograms equals 395 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path and driving directions from Waterloo to Seattle

See the map of the shortest flight path between Waterloo Regional Airport (ALO) and Seattle–Tacoma International Airport (SEA).

Airport information

Origin	Waterloo Regional Airport
City:	Waterloo, IA
Country:	United States
IATA Code:	ALO
ICAO Code:	KALO
Coordinates:	42°33′25″N, 92°24′1″W

Destination	Seattle–Tacoma International Airport
City:	Seattle, WA
Country:	United States
IATA Code:	SEA
ICAO Code:	KSEA
Coordinates:	47°26′56″N, 122°18′32″W