Ford Flex
Fuel economy, running costs and specs by model year
The Ford Flex appears in this database in 4 model years, from 2016 to 2019, offered with gasoline power. Combined economy ranges from 17 to 19 MPG across those years, with annual fuel costs of $3,400 to $3,800 at 15,000 miles.
Fuel economy by year
| Year | Combined | Annual fuel | Versions |
|---|---|---|---|
| 2016 | 17-19 MPG | $3,400-$3,800 | 3 |
| 2017 | 17-19 MPG | $3,400-$3,800 | 3 |
| 2018 | 17-19 MPG | $3,400-$3,800 | 3 |
| 2019 | 17-19 MPG | $3,400-$3,800 | 3 |
How it compares
Against the average standard sport utility vehicle 4wd in this dataset (about 23 MPG), the Flex sits roughly 5 MPG below that mark on average, making it a thirstier-than-average choice for its class.
Five-year fuel cost
Fuelling a Flex for five years at the EPA's 15,000-mile basis costs roughly $17,000 to $19,000, averaging about $18,000 across the versions here. That is the energy bill alone — it excludes insurance, maintenance and depreciation, which for most owners together exceed what goes into the tank.
How it changed over time
Between 2016 and 2019 the Flex's average combined economy improved from about 18 to 18 MPG. Redesigns, new engines and added hybrid or electric versions are usually what move the number, so the year you choose can matter as much as the model.
Best year for fuel economy
The 2019 Flex has the strongest average combined economy in this database at about 18 MPG, while the 2016 is the lowest at about 18 MPG. If running cost is your priority, that is the year to target on the used market; later years may add equipment or safety features instead.
2019 Flex at a glance
| Version | Engine | Fuel | Combined |
|---|---|---|---|
| Flex FWD | 3.5L 6-cyl | Gasoline | 19 MPG |
| Flex AWD | 3.5L 6-cyl | Gasoline | 18 MPG |
Use the comparison tool to set the Flex against a rival, or go back to all Ford models.