Airlineratings.com, the global airline safety and product ratings website, surveyed its readers on 10 passenger types who they felt caused the most grief on planes.
Respondents were asked to rank passenger types 1 to 10 from the most irritating to the least.
According to AirlineRatings.com's editor-in-chief, Geoffrey Thomas, the level of frustration for the smelly passenger reflects a decline in hygiene standards.
"There has been a significant shift in passengers' gripes about their fellow travellers, who are either not conscious of their odor or don't care," he said.
"With online or cell phone check-in now widespread, offending passengers are slipping through the traditional checks and only coming into contact with airline agents at the boarding gate. The agents, under pressure to get the flight away, let offenders slip through."
On runaway kids, Thomas said that "many parents think that the other 300 passengers on board are babysitters."
Passengers who recline their seat for a long time ranked third in terms of irritating fellow travellers.
While the passenger who hogs the armrest came in fourth, which the survey says is a reflection of the ever-decreasing amount of space on planes and the increasing size of passengers.
Passenger etiquette dictates that the passenger in the middle seat gets both armrests, insisted Thomas.
The increasing amount of carry-on baggage was fifth on the list.
Carry-on baggage has become a major problem, particularly in the US, where many airlines charge for checked-in baggage, claims the survey.
Next up in terms of annoying passengers, according to the survey, are the ones with a 'weak bladder' and constantly need to visit the toilets.
In seventh were the chatterbox and eighth passengers who did exercises in the aisle.
In ninth position was the arrogant and demanding passenger who insists on being served before anyone else and is constantly annoying the flight attendants.
Finishing in 10th place was the window hogger, who pulls at the window shade for the entire flight.