Out of the 425 airlines on the list, Qantas Airways won the title of the world's safest airline for 2017 in its fourth consecutive year. The Australian flag carrier recorded zero fatalities since it began flying in 1920.

Aviation analyst AirlineRatings.com awarded once again Qantas Airways as the world's safest airline for 2017. The results were based on the airlines' fatality records and operational excellence as well as various audits from the governments and aviation bodies. AirlineRatings.com honored 20 carriers as the forefront when it comes to safety.

The Australia-based website said of the third oldest airline in the world that Qantas "remains the standout in safety enhancements and operational excellence," according to CNN. Qantas has proven to be a world leader that it has no recorded fatalities over its 96-year history. The British Advertising Standards Association also acknowledges it as "the industry's most experienced carrier."

Some of the safest airlines in the world for 2017 also appeared in TripAdvisor's top 10 list of the best airlines. Singapore Airlines was second best, Air New Zealand came at fifth place and Alaska Airlines at number nine while Delta Air Lines was the only North American major airline recognized. The title of the best airline in the world went to Emirates, but it dropped off the top 20 list of the safest airlines last year.

The rest of the top 20 safest airlines in the world for 2017 are All Nippon Airways, British Airways, Cathay Pacific Airways, Etihad Airways, EVA Air, Finnair, Hawaiian Airlines, Japan Airlines, KLM, Lufthansa, Scandinavian Airline System, Swiss, United Airlines, Virgin Atlantic and Virgin Australia. AirlineRatings.com also recognized the top 10 low-cost carriers for 2016. These carriers earned a seal of approval after passing through over a thousand audits from the International Transport Association Operational Safety Audit (IOSA).