Deal alert: Amtrak tickets starting at $18 one-way, $49 for Acela

Looking for a cheap travel deal and prefer the train over flying? Amtrak is offering fares around the Northeast Corridor for as low as $18 in coach class or $49 in Acelaҳ popular business class. Hereҳ what you need to know. For more TPG news delivered each morning to your inbox, sign up for our Š