Most travelers find the cheapest round-trip airfare to Groningen when booking during the month of February.
Most flyers found that booking flight tickets 60 days in advance of their planned departure date is, on average, the best time to get cheap flights to Groningen.
From most locations, the cheapest flights to Groningen are found on a Monday. Booking a Saturday departure is usually the most expensive.
Generally, when visiting Groningen, noon flights represent the best value. afternoon flights are likely to have higher prices.