January
$7,416
February
$6,353
March
$5,681
April
$5,894
May
$5,795
June
$3,078
July
$5,547
August
$4,599
September
$6,282
October
$6,206
November
$3,030
December
$891
Currently, December is the cheapest month in which you can book a first class flight to Spain. Flying first class to Spain in January will prove the most costly. There are multiple factors that influence the price of a flight so comparing airlines, departure airports and times can help keep costs down.