When Are You Not Eligible for an Upgrade on Lufthansa?
Lufthansa provide upgrades to premium cabins for eligible passengers based on different criteria, but there are some situations where upgrades may not be available. You may not be eligible for a Lufthansa Upgrade to Business if you’ve already purchased a non-upgradable fare class or if the flight is fully booked in the business class. If you need more information about upgrades, you can contact Lufthansa customer service or read the blog by Airlines Group Travel.
Read more: https://www.airlinesgrouptrave....l.com/blog/how-to-ge

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