We fly with Sam Chui to the world's most dangerous airport, Lukla, and up to Mt Everest in a helicopter.

Join Sam as he flies - on oxygen- to the roof of the world and into the world's most dangerous airport, which is the stepping stone to Mt Everest.

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Airlineratings.com was developed to provide everyone in the world a one-stop shop for everything related to airlines, formed by a team of aviation editors, who have forensically researched nearly every airline in the world.

Our rating system is rated from one to seven stars on safety – with seven being the highest ranking. Within each airline, you will find the country of origin, airline code, booking URL and seat map information. The rating system takes into account a number of different factors related to audits from aviation’s governing bodies, lead associations, as well as the airlines, own safety data. Every airline has a safety rating breakdown so you can see exactly how they rate.

Over 230 of the airlines on the site that carry 99 per cent of the world’s passengers have a product rating. Given that low-cost, regional and full-service carriers are so different we have constructed a different rating system for each which can be found within each airline.

Airlineratings.com has information on over 30 types of aircraft from the latest Boeing 787 to the A380 and smaller jets.