| Rank | Passengers 2019 | Country | Answer | % Correct |
|---|---|---|---|---|
| 1 | 6,159,000 | Serbia | Belgrade | 100%
|
| 5 | 2,374,000 | Kosovo* | Priština | 98%
|
| 6 | 2,359,000 | North Macedonia | Skopje | 98%
|
| 2 | 3,435,000 | Croatia | Zagreb | 98%
|
| 7 | 1,721,000 | Slovenia | Ljubljana | 97%
|
| 9 | 1,297,000 | Montenegro | Podgorica | 96%
|
| 3 | 3,302,000 | Croatia | Split | 96%
|
| 4 | 2,896,000 | Croatia | Dubrovnik | 92%
|
| 10 | 1,144,000 | Bosnia and Herzegovina | Sarajevo | 90%
|
| 16 | 201,000 | Croatia | Rijeka | 85%
|
| 11 | 801,000 | Croatia | Zadar | 79%
|
| 17 | 150,000 | Bosnia and Herzegovina | Banja Luka | 77%
|
| 19 | 33,000 | Bosnia and Herzegovina | Mostar | 77%
|
| 14 | 422,000 | Serbia | Niš | 76%
|
| 18 | 46,000 | Croatia | Osijek | 73%
|
| 12 | 778,000 | Croatia | Pula | 70%
|
| 13 | 593,000 | Bosnia and Herzegovina | Tuzla | 69%
|
| 8 | 1,367,000 | Montenegro | Tivat | 68%
|
| 15 | 317,000 | North Macedonia | Ohrid | 59%
|
| 23 | 1,000 | Serbia | Kraljevo | 33%
|
| 21 | 25,000 | Croatia | Brač | 20%
|
| 20 | 29,000 | Slovenia | Portorož | 20%
|
| 22 | 6,000 | Croatia | Mali Lošinj | 5%
|