You have to choose departure destinations
The cheapest month to fly to Madrid is June costing on average 81 £ or September costing on average 83 £.
The most expensive months are December costing on average 128 £ and May costing on average 105 £
The cheapest month to fly to Madrid is Saturday costing on average 42 £ or Wednesday costing on average 45 £.
The most expensive days are Tuesday costing on average 56 £ and Friday costing on average 55 £.