Kia Sedona vs Toyota Sienna
The Toyota Sienna is the more efficient of the two: it reaches 36 mpg combined versus 21 mpg for the Kia Sedona, a 15 mpg advantage and costs about $1,250 less per year to fuel.
Across 5 measured categories, the Toyota Sienna leads in 5. Figures are EPA test data, not manufacturer claims.
Head-to-head specifications
| Metric | Kia Sedona | Toyota Sienna |
|---|---|---|
| Best combined MPG | 21 mpg | 36 mpg ✓ |
| Best city MPG | 18 mpg | 36 mpg ✓ |
| Best highway MPG | 25 mpg | 36 mpg ✓ |
| Lowest annual fuel costEPA estimate at 15,000 miles per year | $2,950 | $1,700 ✓ |
| Lowest CO2 output | 433 g/mi | 246 g/mi ✓ |
| Engines offered | SIDI | SIDI & PFI; Hybrid, SIDI & PFI, 3.5 |
| Transmissions | Automatic (S8), Automatic (S6) | Automatic (AV-S6), Automatic (S8), Automatic (S6) |
| Drivetrains | Front-Wheel Drive | Front-Wheel Drive, All-Wheel Drive |
| Fuel types | Regular | Regular |
| EPA class | Minivan - 2WD | Minivan - 2WD |
| Years covered | 2015–2021 | 2015–2026 |
| Configurations on record | 15 | 24 |
Source: EPA fuel economy records via fueleconomy.gov. Best-case values across all recorded configurations for each model.
Sedona vs Sienna: common questions
Which is better on gas, the Kia Sedona or the Toyota Sienna?
The Toyota Sienna is the more efficient of the two: it reaches 36 mpg combined versus 21 mpg for the Kia Sedona, a 15 mpg advantage and costs about $1,250 less per year to fuel.
Which costs less to run per year?
By EPA estimates at 15,000 miles a year, the Toyota Sienna runs about $1,700 a year in fuel at its most efficient configuration, versus about $2,950 for the Kia Sedona — a difference of roughly $1,250 per year.
What engines do the Sedona and Sienna offer?
Kia Sedona: SIDI. Toyota Sienna: SIDI & PFI; Hybrid, SIDI & PFI, 3.5.
Are they in the same vehicle class?
Yes — the EPA classifies both the Kia Sedona and the Toyota Sienna as Minivan - 2WD, so they compete directly.
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