There are nine airlines offering flights to London. The most direct route isn’t necessarily the cheapest – being flexible is key to finding the lowest airfare rates. For example, try searching by month to see the best time of the week to fly. The cheapest date is currently 12 / Dec / 2025.
London Heathrow is just one of the airports in London. If you're not set on a specific airport, try changing your search from London Heathrow to London to see a broader range of flights – they might be cheaper. It usually takes about 17 hrs 50 mins to fly 10044 km to London Heathrow.
There are about 104 flights to or via London every week, so you have plenty of options. Keep your eye out for flights with Thai Airways International, Qatar Airways and Emirates – these are the most popular airlines for flying to .
During this peak season, hotel and holiday prices often increase too, so it's best to book early. Or you could keep your fingers crossed and hold out for a last-minute deal.