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How far is Harlingen, TX, from Key West, FL?

The distance between Key West (Key West International Airport) and Harlingen (Valley International Airport) is 1000 miles / 1609 kilometers / 869 nautical miles.

The driving distance from Key West (EYW) to Harlingen (HRL) is 1675 miles / 2695 kilometers, and travel time by car is about 31 hours 50 minutes.

Key West International Airport – Valley International Airport

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1000
Miles
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1609
Kilometers
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869
Nautical miles

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Distance from Key West to Harlingen

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

Vincenty's formula (applied above)
  • 999.852 miles
  • 1609.107 kilometers
  • 868.848 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
  • 998.193 miles
  • 1606.436 kilometers
  • 867.406 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 Key West to Harlingen?

The estimated flight time from Key West International Airport to Valley International Airport is 2 hours and 23 minutes.

Flight carbon footprint between Key West International Airport (EYW) and Valley International Airport (HRL)

On average, flying from Key West to Harlingen generates about 151 kg of CO2 per passenger, and 151 kilograms equals 332 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path and driving directions from Key West to Harlingen

See the map of the shortest flight path between Key West International Airport (EYW) and Valley International Airport (HRL).

Airport information

Origin Key West International Airport
City: Key West, FL
Country: United States Flag of United States
IATA Code: EYW
ICAO Code: KEYW
Coordinates: 24°33′21″N, 81°45′34″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