Distance between cities › USA › Missouri › Williamstown, MO › Distance from Williamstown to Portland International Airport Book Hotels

Distance from Williamstown, MO to PDX Airport

Distance

1,942 mi

Time

1 day 10 hours

Gas Cost

$181 - $352

Helpful Inaccurate

There are 1,591.03 miles from Williamstown to Portland International Airport (PDX) in northwest direction and 1,942 miles (3,125.35 kilometers) by car, following the I-84 route.

Williamstown and PDX Airport are 1 day 10 hours far apart, if you drive non-stop .

This is the fastest route from Williamstown, MO to PDX Airport. The halfway point is Banner, WY.

Please note the time difference between Williamstown, MO and PDX Airport is 2 hours. The current time in Williamstown is 9:00 am and the current time in PDX Airport is 7:00 am.

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Lowest Price Rental Cars in Williamstown, MO

Planning on renting a car to go from Williamstown, MO to PDX Airport? Here there are some offers to rent a car in Williamstown, MO

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in Williamstown »

Gas Consumption and Emissions

A car with a fuel efficiency of MPG will need 78.01 gallons of gas to cover the route between Williamstown, MO and PDX Airport.

The estimated cost of gas to go from Williamstown to PDX Airport is $254.47.

During the route, an average car will release 1,528.36 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 Williamstown, MO and PDX Airport

If you want to meet halfway between Williamstown, MO and PDX Airport or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 44.671726 and -106.857880, or 44º 40' 18.2136" N, 106º 51' 28.368" W. This location is 971.22 miles away from Williamstown, MO and PDX Airport and it would take approximately 17 hours 8 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Banner, WY, situated 1,033 miles from Williamstown, MO and 1,023 miles from PDX Airport. It would take 15 hours 40 mins to go from Williamstown to Banner and 14 hours 52 mins to go from PDX to Banner.