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Distance from Philadelphia, PA to SEA Airport

Distance

2,831 mi

Time

2 days 2 hours

Gas Cost

$285 - $554

Helpful Inaccurate

There are 2,373.04 miles from Philadelphia to Seattle–Tacoma International Airport (SEA) in northwest direction and 2,831 miles (4,556.05 kilometers) by car, following the I-94 route.

Philadelphia and SEA Airport are 2 days 2 hours far apart, if you drive non-stop .

This is the fastest route from Philadelphia, PA to SEA Airport. The halfway point is White Lake, SD.

Please note the time difference between Philadelphia, PA and SEA Airport is 3 hours. The current time in Philadelphia is 9:14 am and the current time in SEA Airport is 6:14 am.

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Lowest Price Rental Cars in Philadelphia, PA

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

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in Philadelphia »

Gas Consumption and Emissions

A car with a fuel efficiency of MPG will need 113.70 gallons of gas to cover the route between Philadelphia, PA and SEA Airport.

The estimated cost of gas to go from Philadelphia to SEA Airport is $400.68.

During the route, an average car will release 2,227.64 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 $3.52 per gallon of regular gas. Price last updated on March 18, 2026.
Read more about our CO₂ calculation.

Halfway Point Between Philadelphia, PA and SEA Airport

If you want to meet halfway between Philadelphia, PA 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 43.692909 and -98.822395, or 43º 41' 34.4724" N, 98º 49' 20.622" W. This location is 1,415.58 miles away from Philadelphia, PA and SEA Airport and it would take approximately 1 day 1 hour to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is White Lake, SD, situated 1,431 miles from Philadelphia, PA and 1,434 miles from SEA Airport. It would take 21 hours 9 mins to go from Philadelphia to White Lake and 20 hours 15 mins to go from SEA to White Lake.