Elephants are scattered throughout sub-Saharan Africa, South Asia, and Southeast Asia. Elephantidae is the only surviving family of the order Proboscidea; other, now extinct, members of the order include deinotheres, gomphotheres, mammoths, and mastodons.
This in part because Delta goes directly to Sitka, while the Alaska Airlines flight usually bobs, making a stop in Juneau or Ketchikan that eats up an extra hour.
While Delta says on its frequent flyer page that one-way flights in the U.S., Alaska, and Canada start at 10,000 SkyMiles, it is actually possible to find flights as low as 5,000 miles one-way on select routes like San Francisco to Seattle.