Yes, in 2026, your frequent flyer name must be an exact match to the name on your airline ticket to ensure you earn miles and receive elite benefits. Airlines and the TSA use highly automated systems that compare the name on your passport or ID with the name on your loyalty account. Even a small discrepancy—such as using "Tom" on your frequent flyer account while your passport says "Thomas," or having a middle name on your ticket but not on your account—can cause the system to fail to recognize you. This can result in missing out on priority boarding, lounge access, or even "TSA PreCheck" status if the names don't align. If your name has changed (due to marriage or legal reasons), you must update your frequent flyer profile before booking your flight, which often requires uploading a copy of your marriage certificate or legal decree. In 2026, it is a "pro" tip to ensure your "Known Traveler Number" (KTN) and your loyalty profile are both saved with your full legal name to avoid any manual corrections at the check-in counter.