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Quick Answer
Air fry halved acorn squash at 400°F for 20–25 minutes until fork-tender and caramelized at the edges. Brush the cut side with oil and season before cooking. No need to flip — cook cut-side up the entire time.
This guide links back to the canonical timing row for Acorn Squash, so the advice stays aligned with the chart data.
Use the full Air Fryer Acorn Squash timing page for row notes, related foods, and safety reminders.

Cut the acorn squash in half pole-to-pole and scoop out the seeds with a spoon. Brush the cut surface generously with olive oil or melted butter. Season with salt, pepper, and a pinch of cinnamon or brown sugar if you want a sweeter result.
Place halves cut-side up in the air fryer basket. Air fry at 400°F (205°C) for 20–25 minutes. The squash is done when a fork slides in with no resistance and the edges have begun to caramelize and brown.
Serve halves as individual bowls filled with butter and maple syrup, or scoop the flesh out and mash it. Stuffed versions (rice, sausage, or farro) also work well — add the filling in the last 8 minutes.
Leftover cooked acorn squash keeps in an airtight container in the refrigerator for up to 4 days. Reheat in the air fryer at 375°F for 5 minutes to restore some caramelization.
Last updated June 19, 2026 · Reviewed by Maks