In general, when looking for the cheapest flight to Dubai, try to choose a flight departing in November for the best deal.
On average, from most locations, when planning your trip to Dubai, try to book your flight in the region of 28 days in advance for the cheapest prices.
On average, the cheapest flights to Dubai are found when departing on a Thursday. Try to avoid departing on a Sunday, as this is usually the most expensive day.
On average you can find the best deals on plane tickets to Dubai when looking for flights with afternoon departure times.