I don't know an an internet site that publishes that data.
If you have access to a common US radio store, they have several books used by SCANNERS that list these frequencies.
If you want to listen to traffic between the airline station and an incoming / outgoing flight, you are not going to hear much. Many airlines are converting to ACRS which automatically reports the information the flight crew once called in manually.
The airline company frequencies are all between 129.000 and 132.000 MHZ.
A better choice may be to listen to Ground Control from any local airport. From there you may pick up other frequencies that may be of interest to you.
Ground control frequencies are always one (or more for very large airportrs) of the following:
These frequencies are usually busy and can provide some interesting listening.