How far is Seattle, WA, from Harrisburg, PA?

The distance between Harrisburg (Harrisburg International Airport) and Seattle (Seattle–Tacoma International Airport) is 2297 miles / 3696 kilometers / 1996 nautical miles.

The driving distance from Harrisburg (MDT) to Seattle (SEA) is 2717 miles / 4372 kilometers, and travel time by car is about 48 hours 42 minutes.

Distance from Harrisburg to Seattle

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

Vincenty's formula (applied above)

• 2296.605 miles
• 3696.027 kilometers
• 1995.695 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

• 2290.749 miles
• 3686.603 kilometers
• 1990.607 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 Harrisburg to Seattle?

The estimated flight time from Harrisburg International Airport to Seattle–Tacoma International Airport is 4 hours and 50 minutes.

What is the time difference between Harrisburg and Seattle?

The time difference between Harrisburg and Seattle is 3 hours. Seattle is 3 hours behind Harrisburg.

Flight carbon footprint between Harrisburg International Airport (MDT) and Seattle–Tacoma International Airport (SEA)

On average, flying from Harrisburg to Seattle generates about 252 kg of CO2 per passenger, and 252 kilograms equals 555 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path and driving directions from Harrisburg to Seattle

See the map of the shortest flight path between Harrisburg International Airport (MDT) and Seattle–Tacoma International Airport (SEA).

Airport information

Origin	Harrisburg International Airport
City:	Harrisburg, PA
Country:	United States
IATA Code:	MDT
ICAO Code:	KMDT
Coordinates:	40°11′36″N, 76°45′48″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