If you’re planning to travel with Delta Airlines from the UK, knowing about their London office can really help. The main Delta Airlines office in London is located inside Heathrow Airport, Terminal 3. The full address is Room 3530, 3rd Floor, Southwing Office Block, Heathrow Airport, Hounslow TW6 1QG. This is where Delta handles most of their London-based operations. You can visit this office if you need help with things like flight bookings, ticket changes, baggage queries, travel insurance, or even if you’ve lost your luggage. The office is open 24/7, so help is always available. If you're outside the UK, the US-based number +1 800 221 1212 also works. Besides the airport office, another address sometimes used is 12 Great Russell Street, London WC1B 3NH, but the Heathrow office is the main one for passengers. If you're flying with Delta from Heathrow, you'll use Terminal 3. It’s where Delta flights arrive and depart, and it's also where partner airlines like Virgin Atlantic operate. If you’re flying in Delta One or have SkyMiles Elite status, you may get access to the Virgin Atlantic Clubhouse lounge – a nice bonus! The staff at the London office can help with booking flights, canceling or changing reservations, getting seat upgrades, checking baggage allowances, helping unaccompanied minors, and even dealing with pets. They also help with frequent flyer questions and refunds. A great thing to remember is to always use the official contact numbers listed on the Delta website, because some fake numbers online try to trick passengers. Many travelers also recommend using Delta’s app or Twitter messaging for faster responses if you don’t want to call. If you're new to Heathrow, make sure you give yourself plenty of time, because the airport is big and Terminal 3 can be busy. You can even look up a map of Terminal 3 online to find your way easily. Delta Airlines London Office is known for friendly support and helpful service, so whether you're flying for business or a holiday, you're in good hands. And if you’re using the Tube or train to get to the airport, using a contactless card or mobile payment app will make travel smoother. Overall, Delta Airlines’ London office is a reliable place for passengers who need help with anything related to their flight. Whether you're booking a new trip, fixing a problem, or just have a few questions, their team is always ready to assist. So next time you're flying with Delta from London, you know exactly where to go and who to contact!