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The cheapest Amtrak from Boston to New York usually comes down to when you ride, who you ride with and which fare you click. Northeast Regional and Acela trains both leave from South Station, Back Bay and Route 128 in Westwood, and prices change by day and time, running highest around holidays and peak hours. Tickets go on sale up to 11 months ahead, so book as soon as your dates are set. If your dates are flexible, check the trains an hour earlier and later too, since the price can change from one departure to the next. Here’s how to pay less. Amtrak’s Night Owl fares cover Coach seats on trains scheduled to leave between 6 p.m. and 8 a.m., anywhere between Boston and Washington, and Amtrak lists Boston to New York at $20 one way. Washington to Boston is listed at $30, and early risers count too, since a 7 a.m. train qualifies. Seats are limited, so the cheap ones go first, and you can’t book them with Guest Rewards points. If you roll into New York late, know that Moynihan Train Hall closes from 1 to 5 a.m., and trains use Penn Station, across Eighth Avenue, during those hours. Share Fares cut the price when you book a group on one reservation: 15% off for 3 people, 25% for 4, 37% for 5, 47% for 6, 54% for 7 and 60% for 8. That makes a bachelorette weekend in New York a lot easier to pitch. It works in Coach and Acela Business, and you have to book at least 2 days ahead with code V291. It doesn’t combine with other discounts. Traveling with kids? Ages 2 to 12 ride for half off with an adult 18 or older, and one child under 2 rides free on your lap. Students 17 to 24 get 15% off with a valid student ID in Coach or Acela Business, booked at least a day ahead with code V814. Riders 65 and older get 10% off most fares with proof of age. Neither one stacks with other deals, so compare the discount with whatever sale fare is showing for your train. The cheapest fare isn’t always the best buy. Sale fares can’t be changed, and you lose 50% if you cancel. Value fares can’t be changed either, and you lose 30%. Flex fares cost more but can be changed or refunded with no fee. Every ticket can be canceled free within 24 hours of buying it, as long as the train hasn’t left, but skip the train without canceling and you lose that whole trip. If your plans might move, the Flex fare can end up cheaper. Regular commuters should look at Amtrak’s multi-ride tickets: a 10-ride pass that’s good for 45 to 90 days depending on your stations, or a monthly pass that covers up to two trips a day on the Northeast Regional. They don’t work on Acela, and you reserve each trip up to 14 days ahead. The passes can’t be shared. Want Business or Acela First without paying full price? Amtrak sometimes sends a BidUp invite up to 4 days before you travel. Name your price, and you pay only if your bid wins. Bids close 30 minutes before the train leaves. One catch: a winning upgrade makes your ticket nonrefundable and unchangeable, even a Flex fare. Amtrak Guest Rewards is free to join and earns 2 points per dollar, with bonus points in Business and Acela First. Points go toward free trips, upgrades from 2,500 points and lounge passes, so sign up before your first booking. And watch for Amtrak’s short sales, like the Northeast Sale, which took up to 30% off Regional fares in 2025.
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