You can catch them in sky pillar once it has been opened by Wallace.
You can find one at the Sky Pillar. You can also find a Swablu at Routes 114 and 115 and evolve it.
Sky pillar, the 5th floor.
I believe you can get it in the Sky Pillar
You can find Altaria in sky pillar but it's rare. Also you can catch a Swablu at route 114 and evolve it at level 35.
You trade with Ruby Saphire or Emerald.
Swampert, Altaria, Breloom, Flygon, Swellow, and Manectric.
In Emerald Altaria learns Sky Attack at level 59
You can obtain this move through an event called JR Kyushu Event..but its hosted only in Japan.Although..Altaria has this move.
you can't get altaria but you can get swablu then evolve it, swablu is in route 210
There's no pure dragon type in emerald version. Flygon is ground+dragon, Salamance and Altaria is Flying + Dragon but can be considered as dragon also. altaria can be found in the grass on the way to meteor falls. bagon which can be found in meteor falls but waterfall is required to get it.
Its rare in Sky pillar or you can evolve Swablu it is found it in Route 114 and 115
breed a female swellow or tailow with a male altaria that knows sky attack breed a female swellow or tailow with a male altaria that knows sky attack
you go to the top floor in sky pillar and altarias can be found. it is also very rare.
you go to the top floor in sky pillar and altarias can be found. it is also very rare.