One of the first steps you can take in preventing an airborne illness can sometimes come down to selecting the right seat.
"Stay away from aisle seats and try and get a window seat," Dr. Michael Daignault told Inside Edition.
"It certainly provides you with a protective barrier against additional passengers walking by or in the seats next to you," he added.
Another tip is to turn on overhead air vents so fresh, filtered air passes right in front of your face.
"Even if you just put it on for a moderate amount of speed it does provide this invisible layer of protection around you against larger particles such as the flu or cold virus," he added.
Another way to filter your air is of course to wear a mask.
"Practically speaking, any kind of barrier between yourself and other passengers who are sick will help," Dr. Daignault said.
Using sanitizing wipes to clean the areas you're going to come into contact with, like the tray and armrest, really makes a difference, according to the doctor.
The incubation period for influenza ranges anywhere from three to seven days, according to the New York City Health Commissioner.
If it's too late and you've got the flu, Dr. Daignault offers additional tips to help get you on the road to recovery.
"After your flight and your immune system was compromised, you can do things that you would do at home like get enough rest, drink enough water, exercise, eat well," he said.