<ol>
<li><p>Gettysburg is not much farther from Baltimore than it is from Harrisburg, and Baltimore is a much better transportation hub. If you are going to Boston, you can use Amtrak or fly from BWI. In Gettysburg, they are all Ravens/Orioles fans.</p></li>
<li><p>I think it’s pretty easy to get from Carlisle to the Harrisburg train station, and there is regular Amtrak service between Harrisburg and Philadelphia, where you can get a Northeast Corridor train to Boston. </p></li>
<li><p>Bucknell: Get a car. You will be a long way from anywhere.</p></li>
</ol>
<p>You should check the colleges’ websites. It wouldn’t surprise me if any or all of them had some sort of regular shuttle service to major airports/Amtrak. At Bucknell or Gettysburg that would almost be a necessity.</p>