In general when looking for the cheapest flight to Hamburg, try to book your flight during the month of February for the best deal.
In general, most flyers find the cheapest time to book a flight to Hamburg is about 56 days prior.
In general, booking your departure to Hamburg for a Tuesday represents the best deal on airfare. Try to avoid a Saturday departure to stay away from the highest prices.
On average you can find the best deals on plane tickets to Hamburg when looking for flights with morning departure times.