When I was thinking about doing it last year, I was told $15 one way for Grand Floridian. As the CM told me, why take a cab? I had dinner reservations at Victoria & Albert's(GF) and California Grill(BLT). I took the bus from AKV to the Magic Kingdom and took the monorail to GF. I walked across the street to BLT. You can also take the monorail. I had to allow more time to get to dinner, but it saved me over $60 in cab fares.