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How far is Harlingen, TX, from Seattle, WA?

The distance between Seattle (Seattle–Tacoma International Airport) and Harlingen (Valley International Airport) is 1985 miles / 3195 kilometers / 1725 nautical miles.

The driving distance from Seattle (SEA) to Harlingen (HRL) is 2388 miles / 3843 kilometers, and travel time by car is about 43 hours 58 minutes.

Seattle–Tacoma International Airport – Valley International Airport

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1985
Miles
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3195
Kilometers
Distance arrow
1725
Nautical miles

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Distance from Seattle to Harlingen

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

Vincenty's formula (applied above)
  • 1985.031 miles
  • 3194.598 kilometers
  • 1724.945 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
  • 1985.056 miles
  • 3194.637 kilometers
  • 1724.966 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 Seattle to Harlingen?

The estimated flight time from Seattle–Tacoma International Airport to Valley International Airport is 4 hours and 15 minutes.

Flight carbon footprint between Seattle–Tacoma International Airport (SEA) and Valley International Airport (HRL)

On average, flying from Seattle to Harlingen generates about 216 kg of CO2 per passenger, and 216 kilograms equals 477 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path and driving directions from Seattle to Harlingen

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

Airport information

Origin Seattle–Tacoma International Airport
City: Seattle, WA
Country: United States Flag of United States
IATA Code: SEA
ICAO Code: KSEA
Coordinates: 47°26′56″N, 122°18′32″W
Destination Valley International Airport
City: Harlingen, TX
Country: United States Flag of United States
IATA Code: HRL
ICAO Code: KHRL
Coordinates: 26°13′42″N, 97°39′15″W