European strike action, which has been urged by the European Trade Union Confederation (ETUC), has lead to five departures and five arrivals being axed at Gatwick throughout today.
A spokesman for the airport said services between the UK and Lisbon, Porto and Madrid were affected.
Heathrow Airport said 12 flights have been cancelled as a result of the austerity strikes."British Airways flights travelling both to and from the continent are affected," a spokesman added."Passengers due to travel today are advised to contact their airlines for the information."
Southampton, Luton, Stansted and Birmingham airports said no services are yet to be affected by the strikes.
Police and protesters clashed in Spain, Italy and Portugal as millions of workers went on strike to challenge to austerity policies.
As well as strikes across Europe, today has also produced figures that may convince people at the top that austerity is self-defeating.