If you have lost your PNR (Passenger Name Record) number, you can still check your flight details using several alternative methods in 2026. The most reliable way is to log into the airline's official website or mobile app using your "Frequent Flyer" or loyalty account credentials; if the ticket was booked while you were logged in, it will automatically appear in your upcoming trips. If you don't have an account, you can often search for your booking using your e-ticket number (a 13-digit code) along with your last name. You can find this number on your credit card statement or in the confirmation email from your travel agent. Another option is to call the airline's customer service directly; they can locate your reservation using your full name, flight number, and date of travel, or even the credit card number used for the purchase. In 2026, many airlines also offer "biometric" or "identity-linked" searches through their apps, which can verify your booking simply by scanning your passport or using facial recognition linked to your profile.