A convenient option is to fly to the Indianapolis International
Airport and take a shuttle bus straight to the Purdue Union Hotel.
The shuttle departs every two hours and it takes about 70-minutes.
To make a shuttle reservation (not necessairy but preferable) or to
check out the
shuttle schedule, go to
the LafayetteLimo web page.
Instead of taking a shuttle, you can also rent a car and
Purdue from the Indy airport, it takes about 65-minutes.
Another option is to fly into Chicago, then either rent a car and
drive (about 2
to 2.5 hours) to Purdue, or take a shuttle (four daily departures) from
Chicago O'Hare Airport to Purdue. See
the Express Air Coach web
page for schedule and reservation detail.