On February 4th, it was learned from a number of airlines that the fuel surcharge for domestic routes will be increased from 0:00 tomorrow (5th). After the adjustment, the fuel surcharge for domestic routes for adult passengers will be charged 20 yuan per person per flight segment for flights of 800 kilometers and below; 40 yuan per person per flight segment for flights above 800 kilometers. Compared with the standard before the adjustment, it has been increased by 10 yuan and 20 yuan respectively.