Ford
Flex
Owner report available
Kia
Telluride
Owner report available
Ford Flex vs Kia Telluride
The short answer
The Ford Flex offers power, while the Kia Telluride excels at fuel economy instead. Choose the Ford Flex if you prioritize power in daily driving, or the Kia Telluride if fuel economy matters more for your needs. Both are covered by real owner reports on CarWizz.
Specs side by side
What owners say
Flex
Overall
Mixed to highly positive among owners, with sentiment heavily dependent on powertrain choice and awareness of a critical, well-known mechanical flaw. Owners express deep affection for the vehicle's unique boxy styling, exceptional passenger comfort across three rows, versatile cargo space, and car-like driving dynamics that avoid the bulkiness of traditional SUVs. The EcoBoost turbocharged V6 engine is frequently praised for strong, satisfying acceleration, making the vehicle a "rocket" or "sleeper." However, this enthusiasm is tempered by a very frequent and severe criticism: the failure-prone internal water pump design on the 3.5L V6 engines (both naturally aspirated and EcoBoost), which can lead to catastrophic engine failure and is described as a matter of "when, not if." Fuel economy is consistently criticized as poor (16-20 MPG combined is typical), exacerbated by a small fuel tank, making it a primary reason owners seek replacements.
Best version to buy
Limited trim with EcoBoost engine and AWD. The Limited trim is associated with premium features like leather, rear climate control, and advanced technology.
Known issues
- Internal water pump failure: Design flaw where the pump is located inside the engine timing cover; failure can leak coolant into the oil pan, leading to catastrophic engine seizure without obvious external leaks.
- Poor fuel economy: Real-world combined mileage reported between 16-20 MPG, with a small fuel tank leading to frequent fill-ups. A primary reason owners seek to replace the vehicle. Frequency: very frequent.
- Rust and corrosion: Significant rust issues reported, particularly on door tops under weather stripping, rear hatch seams, and exhaust components (e.g., "flex pipe"). Frequency: recurrent.
Telluride
Overall
Mixed to positive sentiment overall, with a clear generational divide. The Telluride is widely praised for its spacious and functional third row, high-quality interior materials, boxy and attractive exterior styling, strong value proposition, and comprehensive standard features. The naturally aspirated 3.8L V6 engine is frequently cited as a mature, reliable, and simple powertrain, especially when compared to newer turbocharged or hybrid alternatives.
Best version to buy
Insufficient owner data available to declare a consensus "best" trim. Discussions mention various trims (SX, EX, Calligraphy) without a clear, repeated preference for one over another.
Known issues
- Engine oil consumption: reports of excessive oil consumption requiring top-ups between changes and, in isolated cases, engine replacement. Frequency: recurrent.
- Underpowered 3.8L V6 engine: described as lethargic, slow, lacking responsiveness, and struggling with acceleration compared to turbocharged rivals. Frequency: very frequent.
- Dealer/service department problems: poor customer service, difficulty getting warranty repairs approved, lack of respect for customers, and general service quality concerns. Frequency: very frequent.
The verdict
The Kia Telluride is the better choice for most buyers.
It has better fuel economy on its best-equipped version than the Ford Flex, based on the data above. If power matters more to you than running costs, the Ford Flex is worth a closer look instead.
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Common problems by model year
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Frequently asked questions
Which is more reliable, the Ford Flex or the Kia Telluride?
Owner reports show similar reliability sentiment for the Ford Flex and the Kia Telluride. Check the known issues listed above for specific differences between the two.
Which is better for families, the Ford Flex or the Kia Telluride?
The Kia Telluride seats more passengers than the Ford Flex on its catalogued best-equipped version. Body type also differs: the Ford Flex is classed as a SUV, the Kia Telluride as a SUV.
Which has better fuel economy, the Ford Flex or the Kia Telluride?
The EPA rates the 2019 Ford Flex at 17–19 mpg combined and the 2027 Kia Telluride at 19–35 mpg, depending on the version.
Which is cheaper to maintain, the Ford Flex or the Kia Telluride?
Exact maintenance costs aren't in our data, but reliability signals above are the closest proxy: fewer reported issues generally means lower repair costs over time.