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Houston to New Orleans: gas cost
About 350 miles one way. Fuel cost at this week’s average regular price in Gulf Coast (PADD 3): $3.636 per gallon (EIA, week of Nov 2, 2026).
Fuel cost by vehicle
| Vehicle | MPG | Gallons | One way | Round trip |
|---|---|---|---|---|
| Compact car | 35 | 10.0 | $36.36 | $72.72 |
| Midsize sedan | 30 | 11.7 | $42.42 | $84.84 |
| SUV / crossover | 24 | 14.6 | $53.03 | $106.05 |
| Pickup truck | 18 | 19.4 | $70.70 | $141.40 |
💡 Gulf Coast refining keeps gas prices on I-10 relatively low in both Texas and Louisiana.
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FAQ
How much does it cost to drive from Houston to New Orleans?
At about 350 miles and this week’s average of $3.636 per gallon (Gulf Coast (PADD 3)), a car averaging 30 MPG uses about 11.7 gallons – roughly $42.42 one way or $84.84 round trip.
How many gallons of gas from Houston to New Orleans?
About 10.0 gallons for a 35 MPG car, 14.6 for a 24 MPG SUV and 19.4 for an 18 MPG pickup.
Gas prices by state this week → · Gas price history → · More calculators →
Distances are approximate driving distances. Gas prices: U.S. Energy Information Administration weekly averages for regular gasoline; actual prices along the route vary.