[3] Sky Lantern returned to England in August when she contested the Sweet Solera Stakes over seven furlongs at Newmarket and finished second, a length behind the European Champion filly Certify.

Two weeks later Sky Lantern started odds-on favourite for the Prestige Stakes at Goodwood, but was beaten half a length by the Mick Channon-trained Ollie Olga.

On 19 September, Sky Lantern raced in Ireland for the second time when she was one of thirteen fillies to contest the Group One Moyglare Stud Stakes at the Curragh Racecourse.

[5] For her final start of the year, Sky Lantern was sent to the United States for the Breeders' Cup Juvenile Fillies Turf at Santa Anita Park on 2 November.

[8] After a break of seven weeks, Sky Lantern returned for the Coronation Stakes at Royal Ascot in which she was reopposed by Just the Judge, who had won the Irish 1,000 Guineas.

Sky Lantern made rapid progress to overtake the entire field and took the lead a furlong from the finish before drawing clear to win by four lengths.

The result was allowed to stand after a stewards' enquiry, although the winner's jockey William Buick, who appeared to have struck Sky Lantern across the face with his whip, received a three-day ban for careless riding.

After an eight-week break, Sky Lantern returned to racing on 28 September, when she was again matched against Elusive Kate in the Sun Chariot Stakes over one mile at Newmarket.

Hughes held the filly up at the back of the field before taking the lead in the last furlong and winning comfortably by a length from Integral, with Duntle third and Elusive Kate in fourth.

In November, Sky Lantern finished runner-up to Treve in the voting for both Champion Three-year-old Filly and Horse of the Year at the Cartier Racing Awards.