The current Seat Leon covers up to 132 km on a full charge. Figures below are the longest-range variant in each generation.
| Years | Powertrain | Range |
|---|---|---|
| 2000–2006 | Combustion | 1,078 |
| 2005–2009 | Combustion | 1,222 |
| 2009–2013 | Combustion | 1,310 |
| 2013–2017 | Combustion | 1,316 |
| 2017–2020 | Combustion | 1,250 |
| 2020–2024 | Electric | 72 |
| 2024–present | Electric | 132 |
Range is the manufacturer-rated maximum for the longest-range variant in each generation. Electric generations use the rated battery range; combustion generations are calculated from tank capacity and combined-cycle consumption. Figures outside a plausible range are excluded rather than shown with a guessed correction.