Scroll through the results for cheap flights to Knoxville in the USA. To get the best deal, we'd advise booking in advance, particularly if you want to fly with a specific airline. The most popular airlines are British Airways, Virgin Atlantic & Aer Lingus, but that doesn't necessarily mean they're the cheapest. Check your dates and see.
If these flights are too expensive, try searching for a different time of year. It's likely that prices for both flights and accommodation in Knoxville will be higher during August. Meanwhile, February is nearly always the cheapest time to fly. So if your dates are flexible, consider looking at different times of year.
Knoxville receives 113 direct and indirect flights every week, but the cheapest airline is normally West Jet. We've scanned 245 worldwide today, to uncover the best deals. So, if the flights to Knoxville don't work for you, you could always try searching for flights to other airports in the USA.
Looking at a few different departure airports will give you even more choice. See what you can find. And remember, it's best to book your flights in advance wherever possible.