Top 10 Busiest European Flight Routes

Map created by reddit user Gabberulf

The map above shows the 10 busiest European flight routes back in pre-pandemic 2018 from inside the EU, United Kingdom, Switzerland, Iceland and Norway.

The numbers for 2021 are as follows (with number of passengers):

1. Madrid/Barajas – Palma de Mallorca: 1,140,759
2. Rome/Fiumicino – Catania: 1,060,641
3. Madrid/Barajas – Barcelona/El Prat: 1,013,020
4. Oslo/Gardermoen – Trondheim: 1,005,775
5. Oslo/Gardermoen – Bergen: 991,026
6. Madrid/Barajas – Gran Canaria: 937,084
7. Madrid/Barajas – Tenerife Norte: 875,428
8. Athens – Thessaloniki: 826,643
9. Oslo/Gardermoen – Stavanger: 785,512
10. Rome/Fiumicino – Palermo/Falcone Borsellino: 741,588

Which one surprises you the most?