Workers of the Portuguese Air Navigation (NAV) company – including crucial air traffic controllers – announced a strike for the end of June and the beginning of July which will affect air traffic in Portugal.
From Portugal Daily View.com
"NAV workers in continental Portugal and Madeira island will strike on 29, 30 June and 3 July from 6am to 12pm and from 6pm to 10pm. On 1 and 2 July, workers will stop between 6am and 12pm and 5pm and 9pm.
In the Azores, on 29 and 30 June and 3 July workers will halt between 5am and 11am. On 1 and 2 July, another strike is scheduled between 5am and 11am and from 4pm to 10pm.
On 2 July, the union called a strike for all NAV workers for the entire morning, which is due to affect many flights in Portugal..."
Travellers are usually advised to check with their airlines and travel companies