5 most popular are...
1. SOUTHWEST (43.14%)
2. ALLEGIANT (26.15% estimated)
3. DELTA (11.23%)
4. UNITED (6.98%)
5. AMERICAN (6.33%)
1. SOUTHWEST (43.14%)
2. ALLEGIANT (26.15% estimated)
3. DELTA (11.23%)
4. UNITED (6.98%)
5. AMERICAN (6.33%)