ALERT Editor's note: London's Heathrow is the 3rd busiest airport in the world and handles the most international passengers, so delays there surely will ripple throughout Europe. The airport's web site says it handles 62 airlines and 180 destinations. – Tom

Melanie aviation journey began at a young age, earning her first pilot certifications while still a teenager, before she ever held a driver’s license! As lead journalist at AIRLIVE.net, she plays a pivotal role in shaping the voice and editorial direction of the website. Her experience spans flight operations, air traffic coordination and emergency incident analysis.