Go through your results for flights to Cleveland in the USA with Netflights. Although KLM usually has the best prices, it's best to double check what's available for your travel dates.
If you don’t have set dates for when you want to fly to Cleveland, try searching by month – that way, you can compare airfares throughout the year.
So, if the flights to Cleveland don't work for you, you could always try searching for flights to other airports in the USA.
For even more options, check what other airports you could fly to Cleveland from. You might be able to make a saving by going from a different airport or city.