As traffic and other sources add more pollutants to the air, the smog gets worse. Ironically, smog is often more severe farther away from the sources of pollution, because the chemical reactions that cause smog take place in the atmosphere while pollutants are drifting on the wind. Smog: Frequently Asked Questions.
There are two major airports if you are flying into the Big Island, Kona International Airport [1] and Hilo International Airport [2]. There are a few non-stop flights from the mainland, mostly from California and Seattle, but it is more common to arrive via Honolulu or Kahului.
In Hawaii, Hawaiian Airlines serves airports on the four major islands: Oahu (Honolulu International Airport); Hawaii Island (Hilo International Airport and Kona International Airport); Kauai (Lihue Airport); and Maui (Kahului Airport).loha Airlines, the smaller of the two, began operation in 1946 and was, when I first visited Hawaii, the more popular choice of airline for island residents who needed to travel to other islands.