How Long to Air Fry Sweet Potato Fries

A cornstarch dusting (1 tsp per potato) is the secret to fries that aren't floppy.

390°F · 14–18 min

≈ 200°C · shake or flip halfway

Step by step

The tip that matters

Salt after cooking, not before — salt pulls out water and softens the crust.

Times vary — here's why

Air fryers differ in wattage and basket size, so treat 14–18 minutes as a range, not a promise: check early the first time, then note what your machine needed. Quantity matters too — a full basket can add 2–3 minutes, and anything stacked will steam instead of crisp. Converting your own oven recipe instead? Use our air fryer conversion calculator.

More vegetables

Broccoli · Brussels Sprouts · Asparagus — or see the full air fryer cooking times chart.