Travellers face continued disruption after joint US-Israeli strikes against Iran sparked a retaliatory barrage of missiles across the Middle East. Rocket attacks are keeping major airports closed across the region, including in Dubai, where world’s busiest international hub remains shut for a second day. Doha, Qatar, which handled 54 million passengers last year, is also affected, with more disruption impacting flights serving Bahrain, Israel, Jordan, Kuwait, and Saudi Arabia. Follow live: Tehran seeks revenge for supreme leader’s killing Image: Emirates airplanes are parked at the Dubai International Airport after its closure. Pic: AP All told, departures and arrival boards at Heathrow, Gatwick, and Manchester airports, showed multiple flights serving destinations across seven countries cancelled. More than 3,400 flights were cancelled on Sunday across seven airports in the Middle East, according to flight tracker Flightradar24. And with airports in Qatar and the UAE often used for connecting flights, the disruption could hamper onward travel plans for passengers across the globe. Flight delayed or cancelled? These are your rights Image: Dubai International Airport has grounded flights in …