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Delta is calling the seats “Economy Comfort.” They are regular coach seats with an extra 3 inches of legroom. Travelers in those seats get to board the plane earlier, too. Delta will start selling these seats as $19 to $99 add-ons to the price of the ticket. Delta didn’t say how much it would charge once the introductory period ends. Similar seats on Delta’s overseas flights sell for $80 to $160.

Delta is creating the extra legroom by removing seats in the first three to five rows. It expects to have its mainline fleet completed by next summer.