The FTSE-100 Index closed up 162.27 points at 6,382.41 points.
International Consolidated Airlines Group, an Anglo-Spanish multinational airline holding company, soared 11.41%, the top gainer of the blue chips. Rolls-Royce Holdings and easyJet increased by 9.25% and 8.25%, respectively.
Polymetal International, a precious metals mining company, was the worst performer in the blue chips, with its shares losing 6.58%. Fresnillo, a Mexican-based precious metals mining company, dropped 5.90 percent. Hargreaves Lansdown, a financial service company, fell 3.09%.
Paragon Banking Group had a good day after Investec upped its price forecast from 415p to 430p. The lender is in the middle of shifting towards commercial banking and away from buy-to-let. Investec praised its resilient returns on equity although said it preferred OneSavings Bank as its top stock in the sector. Paragon and OneSavings both jumped 2%.