The majority of tourists that travel to Krabi opt to fly into Bangkok and then continue on to Krabi Airport (KBV). After landing, you can take a Songthaew (open-backed taxi) for about ฿40 or an air-conditioned shuttle bus to the main resorts (฿90).
Flying is one of the quickest and most convenient methods to get to Krabi. In fact, there are numerous direct flights to Krabi. As an alternative, you can take a plane to Bangkok, stay for a while, and then get a very affordable domestic ticket directly to Krabi (KBV Airport code).
Since Thailand is well connected with the entire world becuase of the hot tourist destinations, so almost all the major flight companies are opetating their daily flights to Thailand making it easier for them.
Few of the top rated airlines flying to Bangkok & Krabi are:-
IndiGo airline making it easy access from India.
Thai Airways to USA, UK & other Asian countries.
Emirates the leading airline of Dubai connecting Thailand to world.
Cathay Pacific from China and Hong Kong to Thailand.
Airfrance, KLM, ITA, Qatar Airways, Lufthansa and many other leading airlines making Krabi the best reachable options.