If you’re trying to find the cheapest time to fly internationally, one smart trick is to start by checking flights to the biggest and busiest cities—rather than your actual destination. For instance, if you’re planning to visit a smaller city like Busan, in South Korea, begin your search by looking at fares from London to Seoul. Major city routes tend to have more daily flights and greater competition between airlines, which means you’re more likely to spot the cheapest dates to fly. These popular routes give you a reliable sense of when fares are at their lowest overall.
Once you’ve identified the cheapest departure dates to Seoul, you can then search for flights to Busan around the same period. Even if there’s no direct deal to Busan itself, knowing the best time to fly into the country helps you plan smarter. From there, you can either book a connecting domestic flight or take advantage of local transport. It’s a small adjustment to your flight search strategy that can lead to significant savings and a more flexible itinerary.