As someone who used to be the ultimate overpacker , always wanting to bring every clothing option “just in case,” I finally hit a turning point when I saw how much checked bag fees had climbed. All major U.S. carriers, including American Airlines, Delta Air Lines, United Airlines, Southwest Airlines, and others, raised checked bag fees by about $10 in April 2026 due to soaring jet fuel costs—bringing the average price to around $50 for a single bag, according to Business Insider . I used to check a suitcase without thinking twice, but once those fees started creeping up, I caught myself constantly searching things like “Southwest baggage fees” and “carry-on bag hacks” before every flight—and I knew it was time to make a change. Switching to carry-on-only packing felt intimidating at first, but with a few smart packing tips and a lineup of go-to travel essentials , I quickly realized I didn’t need to bring nearly as much as I thought.…