| Partner country GDP | -11.29 | 11.52 | -0.98 | 0.32 |
| Partner country GDP per capita | 18.81 | 5.92 | 3.18** | 0.00 |
| Korea GDP | 8.14 | 12.77 | 0.64 | 0.52 |
| Korea GDP per capita | -16.70 | 6.15 | -2.71** | 0.00 |
| Korea exchange rate | -3.87 | 1.50 | -2.58** | 0.01 |
| Partner country exchange rate | -0.79 | 1.05 | -0.76 | 0.45 |
| International oil prices | -0.34 | 0.17 | -1.96* | 0.05 |
| Flight distance | -52.70 | 35.3 | -1.49 | 0.48 |
| Partner country population | 13.79 | 1.54 | 8.92** | 0.00 |
| Partner country area | -15.40 | 1.76 | -8.75** | 0.00 |
| Number of airports in partner country | -30.52 | 3.71 | 9.28** | 0.00 |