143 - 408 GBP
Travelling from most locations, it is best to book your flight to Oulu during the month of February for the best deal, although there are other times of the year which offer great deals as well.
In general, most flyers find the cheapest time to book a flight to Oulu is about 60 days prior.
In general, booking your departure to Oulu for a Tuesday represents the best deal on airfare. Try to avoid a Friday departure to stay away from the highest prices.
On average you can find the best deals on plane tickets to Oulu when looking for flights with evening departure times.