The Tower Festival sponsorship was negotiated by SMG Plus, Starcom MediaVest Group's sponsorship division, with promoters Harvey Goldsmith and AEG Live.
The festival takes place from September 10 to 20 and includes acts such as Nigel Kennedy and Lesley Garrett.
's presence at the event will consist of New York-themed entertainment and spaces including a VIP bar and an art gallery.
The strategy includes advertorials on Classic FM starting on Monday August 10, encouraging listeners to go online for the opportunity to win VIP tickets to the festival.
At the festival itself, Continental will offer guests several opportunities to win round-trip BusinessFirst tickets to New York.
Mark Bergsrud, senior vice-president of marketing programmes at Continental Airlines, said: "The historic London setting offers us the perfect environment to talk more directly to our core customers about our London Heathrow to New York service, which was increased last year."