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How far is Seattle, WA, from San Antonio, TX?

The distance between San Antonio (San Antonio International Airport) and Seattle (Seattle–Tacoma International Airport) is 1774 miles / 2855 kilometers / 1542 nautical miles.

The driving distance from San Antonio (SAT) to Seattle (SEA) is 2134 miles / 3435 kilometers, and travel time by car is about 39 hours 14 minutes.

San Antonio International Airport – Seattle–Tacoma International Airport

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1774
Miles
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2855
Kilometers
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1542
Nautical miles

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Distance from San Antonio to Seattle

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

Vincenty's formula (applied above)
  • 1774.274 miles
  • 2855.417 kilometers
  • 1541.802 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
  • 1773.538 miles
  • 2854.233 kilometers
  • 1541.162 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 San Antonio to Seattle?

The estimated flight time from San Antonio International Airport to Seattle–Tacoma International Airport is 3 hours and 51 minutes.

Flight carbon footprint between San Antonio International Airport (SAT) and Seattle–Tacoma International Airport (SEA)

On average, flying from San Antonio to Seattle generates about 198 kg of CO2 per passenger, and 198 kilograms equals 437 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path and driving directions from San Antonio to Seattle

See the map of the shortest flight path between San Antonio International Airport (SAT) and Seattle–Tacoma International Airport (SEA).

Airport information

Origin San Antonio International Airport
City: San Antonio, TX
Country: United States Flag of United States
IATA Code: SAT
ICAO Code: KSAT
Coordinates: 29°32′1″N, 98°28′11″W
Destination 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

Airlines flying from San Antonio (SAT) to Seattle (SEA)

Alaska Airlines