If lufthansa.com refuses to open or hangs on a blank screen, start with the basics: clear your browser cache and cookies, then try a different browser entirely. Chrome and Safari sometimes behave differently with the booking engine. If that doesn't help, check your DNS settings — switching to 8.8.8.8 often resolves connectivity issues with airline sites.
A failed login to your Miles & More account is usually one of three things: wrong credentials, an expired session cookie, or a browser extension interfering with the form. Disable ad blockers temporarily and try again in an incognito window. If the site keeps rejecting valid credentials, use the password reset flow — the confirmation email occasionally lands in spam.
Failed payments during booking are frustrating but usually fixable:
The Lufthansa app on iOS or Android sometimes freezes on the boarding pass screen or during check-in. Force-close the app, clear its cache in system settings, and reopen. If the problem persists after a restart, uninstall and reinstall — app updates occasionally leave corrupted local data behind.
If no confirmation shows up within 15 minutes of completing a booking, check your spam folder first. Then log into your account — if the reservation appears there, the booking went through fine and the email simply got filtered. You can resend the confirmation from the booking management page.
When the flight search returns no results or displays an error, it's often a caching issue or a conflict with autofill data. Manually clear the search fields instead of relying on saved inputs, and reload the page. If errors persist, try a different device — the issue sometimes sits at the browser level, not the server.