What to know

• Some passengers said they had been stuck on the tarmac for hours, before their flights were eventually cancelled.S1
• An air traffic control problem has disrupted travel across Britain, cancelling more than 1000 flights and leaving passengers stranded for hours.S2
• Britain’s National Air Traffic Services say it has resolved the issue, but delays rippled across 15 U.K. airports and beyondS3
• Flights at major British airports were disrupted on ‌Tuesday by a technical fault at air traffic control provider NATS, the latest in a series of failures ‌that renewed questions about ⁠the resilience...S4