World's busiest passenger air routes World World

| Rank_ | City_1 | City_2 | _2012_Passengers_in_millions | _2011_Passengers_in_millions | Distance |
|---|---|---|---|---|---|
| 1 | Seoul | Jeju | 10.156 | 9.9 | 450km |
| 2 | Tokyo | Sapporo | 8.211 | 7.5 | 819km |
| 3 | São Paulo | Rio de Janeiro | 7.716 | 7.6+ | 366km |
| 4 | Beijing | Shanghai | 7.246 | 6.6+ | 1075km |
| 5 | Sydney | Melbourne | 6.943 | 7.0+ | 706km |
| 6 | Tokyo | Osaka | 6.744 | 7.5 | 405km |
| 7 | Tokyo | Fukuoka | 6.640 | 6.6+ | 883km |
| 8 | Hong Kong | Taipei | 5.513 | 6.2+ | 780km |
| 9 | Tokyo | Okinawa | 4.584 | 4.1 | 1554km |