Many flights have been delayed or cancelled due to the closing of air space over Pakistan.
On February 26th, India carried out airstrikes in Pakistan to strike at an alleged terrorist camp. Since then, minor skirmishes followed, with most action taking part in the air. With the closing of air space over Pakistan, airlines are cancelling or delaying flights which can’t avoid the area.
As always, air passengers affected by this delay (or flight cancellations) have all the usual rights granted to them under Regulation (EC) 261/2004. For delays lasting more than two hours, the airline has to provide you with free meals and drinks. You should also be allowed to make two free calls, use e-mail or send a free fax. If you have to wait for the flight for one or more nights, the carrier has to provide you with free accommodation at a hotel, including transport to/from the airport. In case they’re unable/unwilling to do this, save the receipts: all “rational” expenses (no VIP penthouses, caviar or limos) should be refunded afterwards.
Disruptions due to political or military actions is one of the exceptional circumstances as defined by (EC) 261/2004 – which means you can’t claim disrupted flight compensation! Other rules still apply, so they airlines should still take care of you.