If you have changed your mind and want to travel more comfortably, the airline provides an upgrade option to help you get the best-class services inside and outside the flight. You can go through the procedure below that will help you upgrade your flight quickly and without making any mistakes.

• You need to visit the official site of Lufthansa https://www.lufthansa.com.
• After that, move to the book upgrade button.
• Now you can select your suitable flight under my booking tab and click on the Upgrade tab.
• At last, you need to choose whether to redeem miles or an e-voucher for your upgrade. 
• Finally, apply it and get the confirmation code on your registered email id. 

Lufthansa upgraded general information. 

If your booking includes upgrade options and you wish to rebook, then you need to contact the service center via helpline number 1 (800) 645-3880, which will connect with customer service, which will provide an appropriate solution. 

• If you are an economy class passenger traveling on long halt flights, you can choose an upgrade offer for the premium economy and business class. As an economy class passenger, you can upgrade to business class; for the business class passenger, you can upgrade to first class. 

• Lufthansa authority will drop you the notification via email regarding the upgrade 24 hours before the departure schedule. After upgrade confirmation, the flight fees will be automatically debited from your credit card, which has been specified to you. You will get a new digital ticket, and while you are at the check-in counter, get a boarding pass for the latest travel class. 

• In some exceptional scenarios, if your flight gets canceled, the upgrade option will automatically be shifted and available for the next flight.

How many miles does it cost to upgrade on Lufthansa?

Flights between the United States and Europe generally cost 30,000 frequent flier miles. You can pay for the Lufthansa upgrades using your credit card, e-voucher, or frequent flier miles. You can go through the upgrade chart available on the official page of the airline. 

• If upgrading from economy class (B, Y), you must have a minimum of 10,000 miles.
• If it is upgrading from economy class (other booking classes), then you need to have a minimum of 15000 miles.
• If it is upgrading from economy class (K, L, T), then you need to have a minimum of 20,000 miles. 

Can I use United Miles to upgrade Lufthansa?

You can use United plus points miles to upgrade eligible fares for Lufthansa. So you can go for a Lufthansa miles upgrade anytime with the help of different airline miles, such as United. And the plus points can be earned when the passenger reaches premier platinum or platinum 1k elite status. 

How many Lufthansa miles to upgrade to business? 

Lufthansa's miles should be around 10,000 miles to upgrade to business. You can use miles either while booking online or directly visit at the check-in desk as well; you can make a call at the desk through customer service number  1 (800) 645-3880; you will get connected to the live person and provide your booking details according that the person will help you in making upgradation in your flight class.

• Once you upgrade to business class, you can enjoy numerous benefits and travel with more comfort and extraordinary facilities. 
• You will get lounge access anytime after arriving at the airport.
• You will get priority boarding facilities at the airport.
• You can carry additional baggage free of cost and custom made in flight meals. 
• In business class, the middle seat always stays empty so that you can enjoy your personal space on board. Your work will be undisturbed, and watch the shows more peacefully. 
• You will get food facilities such as Lufthansa chocolate; after that, the airline will offer a free bottle of mineral water. Moreover, you can also select affordable snacks made with fresh regional ingredients and hot and cold beverages. 

If you still have the question, Can I transfer Lufthansa miles to United? Then the answer is yes, you can redeem the Lufthansa miles for flights on United. According to the rules and regulations, you can apply miles from one airline for another, but it is not allowed to join the miles between 2 programs. 

Website: https://www.lufthansa.com

Regarding upgrading using miles, visit: https://www.lufthansa.com/kr/en/upgrade-options