Yes, there are multiple flights from McGhee Tyson to Changi Intl for under S$ 1,849. The cheapest flight booked recently is on Qatar Airways for just S$ 1,817, but on average you can expect to pay S$ 1,912.
There are no direct flights from McGhee Tyson to Changi Intl, but Cheapflights can provide you with all the information you need to find the fastest route with the fewest stops.
When travelling, it's generally smart to pack in preparation for rain or any other conditions that may arise. The rainfall in Knoxville is roughly greater than that of Singapore City Airport. You can assume this to be the case over the next 13 days.
With an average temperature of 33 °C, peak weather can be found in April. As a traveller, expect to see changes in flight prices during that period. The temperatures in Singapore City Airport are hotter than in Knoxville.
Airlines like ANA, American Airlines, and Qatar Airways fly from McGhee Tyson to Changi Intl in about 28h 20m. The time it takes to get you to your destination can typically vary by up to 4h 30m. This flight may include one or multiple stops.
Currently priced at S$ 1,817, Qatar Airways will fly you from McGhee Tyson to Changi Intl and back. In addition to Qatar Airways, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Japan Airlines and ANA - these airlines can fly you to your destination from S$ 1,910 and S$ 1,928, respectively.