Vehicle-specific route answer
San Antonio to Dallas fuel cost in a 2024 Honda Civic 4Dr
Exact EPA configuration #47068, current road distance, and the regular-gasoline price assigned to San Antonio, TX.
Driving the 2024 Honda Civic 4Dr from San Antonio to Dallas costs about $27.27 one way and $54.53 round trip in regular gasoline.This is a deterministic fuel-only answer for the dated inputs below. Tolls, parking, traffic/idling, and station-level price variation are excluded.
Road distance276.5 mi
Baseline time5 hr 1 min
EPA combined MPG36.3152
Gasoline used7.61 gal
Reproducible calculation
| Input | Exact value used | Source boundary |
|---|---|---|
| Road distance | 276.5202 miles | OSRM route retrieved 2026-08-24 |
| Vehicle efficiency | 36.3152 combined MPG | EPA record #47068 |
| Regular gasoline | $3.581 per gallon | EIA Texas, week ending 2026-08-24 |
| One-way result | $27.27 | 276.5202 ÷ 36.3152 × $3.581 |
Primary evidence
- EPA/DOE FuelEconomy.gov record #47068 for 2024 Honda Civic 4Dr. The page uses the official unrounded combined MPG.
- U.S. EIA weekly gasoline series: $3.581/gal, Texas, week ending 2026-08-24.
- OSRM route service with OpenStreetMap road data. Census representative points identify both endpoints.
- Full DriveCostCheck vehicle record and editable annual-cost calculator.