Go through your results for flights to Moses Lake in the USA with Netflights.
Flexible on dates? Conducting your search by month allows you to compare prices to Moses Lake throughout the year. Accommodation prices will also be higher at this time of year.
So, if the flights to Moses Lake 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 Moses Lake from. You might be able to make a saving by going from a different airport or city.