I discovered a travel hack to get free miles — I scored $315 worth just filling out a form

All good things come to those who wait.

With airfare costs projected to soar this year, one enterprising Delta Airlines flyer has managed to earn $315 in free Sky Miles by simply waiting for his bags. He detailed the unorthodox cash-saving shortcut in an Instagram post taking flight online.

“It’s an absolute bonus for nothing extra on my part,” Mikah Meyer told Business Insider of the ingenious money-saving hack.

The savvy traveler writer — who frequently posts flight tips for his over 67,000 Instagram followers — simply took advantage of Delta Airlines’ 20-minute baggage guarantee. This unique policy guarantees that grants travelers 2,500 Skymiles if they have to wait over 20 minutes for their bags after the plane has arrived at the gate.

By taking advantage of this program, Meyer has managed to earn over 22,500 free Sky Miles, which equates to $315 — enough for a roundtrip flight in the US.

To follow suit, travelers simply use the Delta app or website to pull up “Flight Status” after their plane lands to find out exactly what time it touched down, per the Instagram tutorial.