Are there nonstop flights from London (LGW) to Havana (HAV)?

No. The fastest connection is via Cancún, about 10h 59m of total flying time.

What is the fastest connection from London (LGW) to Havana (HAV)?

via Cancún ≈ 10h 59m, via Madrid ≈ 11h 13m, via Frankfurt am Main ≈ 11h 18m (estimated flying time, excluding layovers).

London Gatwick Airport (LGW) to José Martí International Airport (HAV)・7,508 km

No nonstop flights. The fastest connection is via Cancún (CUN), about 10h 59m of flying time (layover not included).

None.

7 one-stop options, sorted by estimated flying time. Tap one to see the airlines on each leg and booking links.

Times are estimated from distance. Check schedules, frequency and availability with the airline or a booking site.