Rank | Search Term | Volume |
1. | southwest airlines | 8.84% |
2. | american airlines | 3.67% |
3. | united airlines | 3.21% |
4. | continental airlines | 3.08% |
5. | delta airlines | 2.32% |
6. | us airways | 2.21% |
7. | northwest airlines | 2.08% |
8. | southwest | 1.80% |
9. | delta | 1.55% |
10. | jet blue | 1.51% |
Source: Hitwise |