Distance between cities › USA › Texas › Trinity, TX › Distance from Trinity to Seneca Book Hotels

Distance from Trinity, TX to Seneca, SD

Distance

1,188 mi

Time

21 hours 45 mins

Gas Cost

$111 - $215

There are 1,000.64 miles from Trinity to Seneca in northwest direction and 1,188 miles (1,911.90 kilometers) by car, following the I-45 and US-190 route.

Trinity and Seneca are 21 hours 45 mins far apart, if you drive non-stop .

This is the fastest route from Trinity, TX to Seneca, SD.

Trinity, TX and Seneca, SD are in the same time zone (CDT). Current time in both locations is 8:07 am.

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Lowest Price Rental Cars in Trinity, TX

Planning on renting a car to go from Trinity, TX to Seneca, SD? 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 47.69 gallons of gas to cover the route between Trinity, TX and Seneca, SD.

The estimated cost of gas to go from Trinity to Seneca is $155.57.

During the route, an average car will release 934.40 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 Trinity, TX and Seneca, SD

If you want to meet halfway between Trinity, TX and Seneca, SD or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 38.420721 and -97.62065, or 38º 25' 14.5956" N, 97º 37' 14.34" W. This location is 593.77 miles away from Trinity, TX and Seneca, SD and it would take approximately 10 hours 52 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is McPherson, KS, situated 608 miles from Trinity, TX and 585 miles from Seneca, SD. It would take 10 hours 36 mins to go from Trinity to McPherson and 11 hours 16 mins to go from Seneca to McPherson.