Booking a First Class flight 26 days in advance of your planned departure date is, on average, the best time to get cheap flights to Worldwide. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
Currently, May is the cheapest month in which you can book a First Class flight from United Kingdom to Worldwide (average of £3,682). Flying from United Kingdom to Worldwide in August is currently the most expensive (average of £4,197). There are several factors that can impact the price of a flight, so comparing airlines, departure airports, and flight times can provide users with more options.
Etihad Airways, Emirates and Virgin Atlantic are highly recommended providers for First Class flight tickets to Worldwide. Check for amenities list before you book to take advantage of more premium services, not every airline has the same First Class perks.