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Distance from Trinity, TX to SEA Airport

Distance

2,272 mi

Time

1 day 16 hours

Gas Cost

$208 - $404

Helpful Inaccurate

There are 1,822.51 miles from Trinity to Seattle–Tacoma International Airport (SEA) in northwest direction and 2,272 miles (3,656.43 kilometers) by car, following the I-84 route.

Trinity and SEA Airport are 1 day 16 hours far apart, if you drive non-stop .

This is the fastest route from Trinity, TX to SEA Airport. The halfway point is Elk Mountain, WY.

Please note the time difference between Trinity, TX and SEA Airport is 2 hours. The current time in Trinity is 8:22 pm and the current time in SEA Airport is 6:22 pm.

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Lowest Price Rental Cars in Trinity, TX

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

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in Trinity »

Gas Consumption and Emissions

A car with a fuel efficiency of MPG will need 91.26 gallons of gas to cover the route between Trinity, TX and SEA Airport.

The estimated cost of gas to go from Trinity to SEA Airport is $292.39.

During the route, an average car will release 1,787.94 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 Trinity, TX and SEA Airport

If you want to meet halfway between Trinity, TX 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 41.666656 and -106.349464, or 41º 39' 59.9616" N, 106º 20' 58.0704" W. This location is 1,136.17 miles away from Trinity, TX and SEA Airport and it would take approximately 20 hours 5 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Elk Mountain, WY, situated 1,247 miles from Trinity, TX and 1,139 miles from SEA Airport. It would take 18 hours 32 mins to go from Trinity to Elk Mountain and 17 hours 4 mins to go from SEA to Elk Mountain.