You have to choose departure destinations
The cheapest month to fly to Madrid is June costing on average 83 £ or September costing on average 85 £.
The most expensive months are December costing on average 132 £ and May costing on average 108 £
The cheapest month to fly to Madrid is Saturday costing on average 43 £ or Wednesday costing on average 46 £.
The most expensive days are Tuesday costing on average 57 £ and Friday costing on average 57 £.