Many travel insurance policies offer coverage in the event a labor strike prevents you from traveling. The article below from USA Today mentions how Air France pilots and crew have started a four-day strike that could cause flights to be cancelled.
Air France says it expects to maintain more than 85% of its long-haul flights and 80% of European flights when pilots, cabin crew and other personnel begin a four-day walkout today protest a government labor reform. The French airline did not say how many domestic flights it would have to cancel, and added that it may have to cancel some flights at the last minute. It is offering free rescheduling for passengers with tickets for travel Monday through Thursday. Feb. 6-9.
If your are not able to depart as a result of a strike, your travel insurance policy may cover you to cancel the trip and be reimbursed. Some travel insurance policies may also offer Travel Delay. Travel Delay will reimburse you for the cost of food, hotel and local transportation during the delay.
Always refer to the travel insurance certificate for details.
Source: USA Today