2026 head-to-head · Minivan
2026 Honda Odyssey vs Kia Carnival
MPG, range and what each one really costs you to fuel, from official EPA ratings and recalculated with your own gas and electricity prices.
FWD · 3.5L 6-cyl · 10-speed automatic · 22 MPG
FWD · 3.5L 6-cyl · 8-speed automatic · 21 MPG
The 2026 Honda Odyssey is the cheaper one to run. Driving 15,000 miles a year with $3.10/gal regular gas, it costs about $2,114 a year to fuel (22 MPG), versus $2,214 for the 2026 Kia Carnival (21 MPG). That's roughly $101 a year, or about $503 over five years.
Your numbers
Change these to match your driving and local prices. Every figure and chart on this page updates.
Fuel cost over 10 years
- Honda Odyssey
- Kia Carnival
Side by side
| Honda Odyssey | Kia Carnival | |
|---|---|---|
| $2,114 | Your annual fuel cost | $2,214 |
| 22 MPG | Combined efficiency | 21 MPG |
| 19 MPG | City | 18 MPG |
| 28 MPG | Highway | 25 MPG |
| 395 g/mi | Tailpipe CO₂ (g/mi) | 428 g/mi |
| 4/10 | EPA fuel economy score | 4/10 |
| 4/10 | EPA greenhouse gas score | 4/10 |
| Gas | Powertrain | Gas |
| Regular gasoline | Fuel | Regular gasoline |
| 3.5L 6-cyl | Engine / motor | 3.5L 6-cyl |
| 10-speed automatic | Transmission | 8-speed automatic |
| FWD | Drivetrain | FWD |
✓ marks the better value. EPA scores run 1–10 (10 is best). Volumes come from the EPA interior volume index and aren't published for every body style.
Honda Odyssey vs Kia Carnival across model years
- Honda Odyssey
- Kia Carnival
Annual fuel cost of the most efficient configuration of each model year, at your prices. Click a point to open that year.
How they differ
Among 7 2026 minivans, the Honda Odyssey ranks 4th and the Kia Carnival 7th for lowest fuel cost.
Frequently asked questions
Which is more fuel-efficient, the 2026 Honda Odyssey or the 2026 Kia Carnival?
Measured by cost to drive, the Honda Odyssey. The Honda Odyssey is rated 22 MPG combined and the Kia Carnival 21 MPG (EPA, most efficient configuration of each).
How much does it cost to fuel the 2026 Honda Odyssey vs. the Kia Carnival per year?
At 15,000 miles a year with $3.10/gal regular gas, about $2,114 for the Honda Odyssey and $2,214 for the Kia Carnival.
Honda Odyssey vs Kia Carnival in other years
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