Distance between cities › USA › Illinois › Markham, IL › Distance from Markham to Seattle–Tacoma International Airport Book Hotels

Distance from Markham, IL to SEA Airport

Distance

2,070 mi

Time

1 day 12 hours

Gas Cost

$189 - $368

Helpful Inaccurate

There are 1,737.09 miles from Markham to Seattle–Tacoma International Airport (SEA) in northwest direction and 2,070 miles (3,331.34 kilometers) by car, following the I-90 route.

Markham and SEA Airport are 1 day 12 hours far apart, if you drive non-stop .

This is the fastest route from Markham, IL to SEA Airport. The halfway point is Rozet, WY.

Please note the time difference between Markham, IL and SEA Airport is 2 hours. The current time in Markham is 12:05 am (Mar 12) and the current time in SEA Airport is 10:05 pm (Mar 11).

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Lowest Price Rental Cars in Markham, IL

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

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in Markham »

Gas Consumption and Emissions

A car with a fuel efficiency of MPG will need 83.12 gallons of gas to cover the route between Markham, IL and SEA Airport.

The estimated cost of gas to go from Markham to SEA Airport is $266.32.

During the route, an average car will release 1,628.48 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 Markham, IL and SEA Airport

If you want to meet halfway between Markham, IL 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 44.252628 and -105.224091, or 44º 15' 9.4608" N, 105º 13' 26.7276" W. This location is 1,034.84 miles away from Markham, IL and SEA Airport and it would take approximately 18 hours 9 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Rozet, WY, situated 1,054 miles from Markham, IL and 1,072 miles from SEA Airport. It would take 14 hours 54 mins to go from Markham to Rozet and 15 hours 25 mins to go from SEA to Rozet.