Flashing light going across the sky

Roused at 3:05 am. Had feeling to look out my bedroom window and so I did. When I look around in the sky I noticed a flashing white light. I watched to see if it was a plane. Noticed it was going much faster than a plane. It started about half way in my window facing East then within 15 seconds it was in the Southeast part of the sky. I reached for my phone to get video and when i got back, moments later, i look out to find it was nearing the South part of the sky. It flashed two more times and it was gone. There was still open sky to see more flashing, but nothing.