There are many airlines that operate International flights to London from destinations all around the world. The airlines operate flights to London from major cities in Europe, North America, Asia, Africa, and Australia. London has several airports, with Heathrow Airport being the largest and busiest airport in the city, followed by Gatwick, Stansted, Luton, and London City airports. It's important to check the flight schedules, prices, and baggage allowances offered by different airlines to find the best option for your travel needs. Snagout.com allows you to search for International flights to London based on your budget and preferred destination.