6 unsolicited tips for booking Amtrak

Note: this is most appropriate for the Northeast corridor, as this is what I am used to. Book early (duh!) Unfortunately, Amtrak isn't like regional rail: Amtrak prices rise, and rise hard, on the popular routes (especially NE corridor) (And don't try to buy a ticket on the train if you can at all avoid it) If booking early, use the "flex" fare for more flexibility The nice thing about Amtrak is…