For 2026, Skyscanner and Google Flights remain the top contenders, but for different reasons. Google Flights is the best for its sheer speed, price-tracking alerts, and "Explore" map which shows you the cheapest European city to fly into from your home airport. However, Skyscanner is often superior for finding lower fares on smaller European "low-cost carriers" (like Ryanair or EasyJet) that might not always appear on major US-based sites. Another strong option is Momondo, which excels at finding complex, multi-city itineraries. If you are looking for "hidden city" ticketing to save money, Skiplagged is a powerful tool, though it comes with risks. For the best results, use Google Flights to find the general price trend and Skyscanner to see if a smaller regional airline can offer a cheaper "hacker fare" for that final leg into Europe.