Taxi is flat rate $45+tolls+tip for all four of you. NYAS express bus goes to Penn Station from all terminals, hotel is across the street, fare is $15 per person. Public transportation will also get you to Penn Station; Airtrain ($5) to Jamaica Station and either LIRR ($5.75) or E subway ($2.25) to Penn Station. Travel time is 45-60 minutes.
Taxi is flat rate