Does the warranty cover if I lose my AirPods?

No. it's not covered by warranty .

You can buy a replacement for a left or right AirPod

AirPods and AirPods Case Replacement - Official Apple Support

MP1120 Said:

"Warranty: does my warranty cover if i lose my airpods"

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Who's the Seller?:

As for a "Warranty", that would depend on where you purchased this. If purchased through a retailer, then it might be different, and it might be covered. But No. Not for AppleCare.

No.

(219115)

MP1120 Said:

"Warranty: i got them from best buy so i don’t think they will cover it, just gonna have to buy a left airpod"

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Then ask BestBuy, just to be certain.