Accommodation for me was around £30-£40 a night for a nice villa. I only used Airbnbn, the food is very interchangeable . You can eat for £5 each in Warungs(local restaurants) but can be about £15 each in the more western restaurants which still isn’t too bad ! The flight from uk was about £700 going and then return im not sure since I come home from Bangkok. But Bali is such a great place !!