AdvertisementSouthwest is introducing new economy seats next year, adding tablet holders and power. Southwest could charge for bags — one of its biggest free perksElliott's proposal called attention to one of Southwest's most visible perks: two free checked bags. Scott Olson/Getty ImagesThere is a way for both sides to win, according to Harteveldt: Give free checked bags to Southwest credit card holders. American, Delta, and United offer complimentary checked bags as credit card perks. The additional flights can give travelers more flexibility and give Southwest more seats to sell on a route.

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