Need advice: Getting count of arrivals during specified time range


So I am very new to this and was wondering if I could get some advice on where to start or if there is hopefully an easy answer for what I need.

What I need is to obtain a count of arrivals at a specific airport within a date / time range. I do not need other details such as flight numbers, origin airport or anything like that. It may be nice to also possibly get a delayed flights count but that is secondary.

I have looked through the API and I am able to get what I need using the AirlineFlightSchedules feed but this is pulling a lot of data that is not needed and is affecting cost.

Thanks in advance for any advice provided!