<p>I’d try and take a bus from the airport. Despite the fact that it’s only one ride on the same subway (E line) to the bus terminal after the airtrain, 23 kg is going to be quite a nuisance to lug around on a likely populated subway car. Also, if Campus2Campus is too expensive and/or inconvenient for you, do Shortline, which is much more frequent and less expensive. Don’t bother with Greyhound. If I’m not mistaken, it doesn’t even go onto Cornell’s campus (Shortline does).</p>