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

Distance from Colman, SD to SEA Airport

Distance

1,505 mi

Time

1 day 1 hour

Gas Cost

$140 - $273

Helpful Inaccurate

There are 1,247.10 miles from Colman to Seattle–Tacoma International Airport (SEA) in west direction and 1,505 miles (2,422.06 kilometers) by car, following the I-90 route.

Colman and SEA Airport are 1 day 1 hour far apart, if you drive non-stop .

This is the fastest route from Colman, SD to SEA Airport. The halfway point is Reed Point, MT.

Please note the time difference between Colman, SD and SEA Airport is 2 hours. The current time in Colman is 11:08 pm and the current time in SEA Airport is 9:08 pm.

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Lowest Price Rental Cars in Colman, SD

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

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in Colman »

Gas Consumption and Emissions

A car with a fuel efficiency of MPG will need 60.46 gallons of gas to cover the route between Colman, SD and SEA Airport.

The estimated cost of gas to go from Colman to SEA Airport is $197.23.

During the route, an average car will release 1,184.56 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 $3.26 per gallon of regular gas. Price last updated on March 12, 2026.
Read more about our CO₂ calculation.

Halfway Point Between Colman, SD and SEA Airport

If you want to meet halfway between Colman, 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 45.683228 and -109.392570, or 45º 40' 59.6208" N, 109º 23' 33.252" W. This location is 752.75 miles away from Colman, SD and SEA Airport and it would take approximately 12 hours 58 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Reed Point, MT, situated 795 miles from Colman, SD and 766 miles from SEA Airport. It would take 11 hours 5 mins to go from Colman to Reed Point and 10 hours 51 mins to go from SEA to Reed Point.