Distance between cities › USA › South Dakota › Box Elder, SD › Distance from Box Elder to Seattle–Tacoma International Airport Book Hotels

Distance from Box Elder, SD to SEA Airport

Distance

1,148 mi

Time

20 hours 20 mins

Gas Cost

$105 - $204

Helpful Inaccurate

There are 952.68 miles from Box Elder to Seattle–Tacoma International Airport (SEA) in northwest direction and 1,148 miles (1,847.53 kilometers) by car, following the I-90 route.

Box Elder and SEA Airport are 20 hours 20 mins far apart, if you drive non-stop .

This is the fastest route from Box Elder, SD to SEA Airport. The halfway point is Ramsay, MT.

Please note the time difference between Box Elder, SD and SEA Airport is 1 hour. The current time in Box Elder is 7:21 pm and the current time in SEA Airport is 6:21 pm.

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Lowest Price Rental Cars in Box Elder, SD

Planning on renting a car to go from Box Elder, SD to SEA Airport? Here there are some offers to rent a car in Box Elder, SD

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in Box Elder »

Gas Consumption and Emissions

A car with a fuel efficiency of MPG will need 46.08 gallons of gas to cover the route between Box Elder, SD and SEA Airport.

The estimated cost of gas to go from Box Elder to SEA Airport is $147.65.

During the route, an average car will release 902.89 pounds of CO₂ to the atmosphere. The carbon footprint would be 0.79 pounds of CO₂ per mile.

Average USA gas price used for calculation is $3.20 per gallon of regular gas. Price last updated on March 11, 2026.
Read more about our CO₂ calculation.

Halfway Point Between Box Elder, SD and SEA Airport

If you want to meet halfway between Box Elder, SD and SEA Airport or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 46.008324 and -112.635422, or 46º 0' 29.9664" N, 112º 38' 7.5192" W. This location is 573.75 miles away from Box Elder, SD and SEA Airport and it would take approximately 10 hours 10 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Ramsay, MT, situated 612 miles from Box Elder, SD and 592 miles from SEA Airport. It would take 8 hours 52 mins to go from Box Elder to Ramsay and 8 hours 34 mins to go from SEA to Ramsay.