Europe’s Most Popular Flight Routes for Summer 2025

Travel intelligence firm OAG announces Europe’s Most Popular Flight Routes for Summer.

Where are the hotspots for international European travel this summer? Let’s explore the top ten flight routes in Europe based on seats scheduled for the summer air travel season (March 30^th-October 25^th 2025).

This list details the international flights to, from and within Europe with the most scheduled capacity for summer.

1. FCO-MAD Rome Fiumicino Apt – Madrid Adolfo Suarez-Barajas Apt: 1,322,042 seats
2. LIS-MAD Lisbon – Madrid Adolfo Suarez-Barajas Apt – 1,287,024 seats
3. CPH-OSL Copenhagen Kastrup Apt – Oslo Gardermoen Airport – 1,266,916 seats
4. DUS-PMI Duesseldorf International Airport – Palma de Mallorca – 1,258,485 seats
5. JFK-LHR New York J F Kennedy International Apt – London Heathrow Apt – 1,229,245 seats
6. DUB-LHR Dublin (IE) – London Heathrow Apt – 1,220,720 seats
7. AMS-BCN Amsterdam – Barcelona Apt (ES) – 1,211,856 seats
8. BCN-FCO Barcelona Apt (ES) – Rome Fiumicino Apt – 1,191,798 seats
9. ECN-SAW Ercan – Istanbul Sabiha Gokcen Apt – 1,185,380 seats
10. ARN-CPH Stockholm Arlanda Apt – Copenhagen Kastrup Apt – 1,168,296 seats

>Exploring the Busiest Flight Routes in Europe

>Have AirFares increased on Europe’s Busiest Routes?

Continue reading the OAG article here.

OAG is the world’s leading provider of digital flight information, intelligence and analytics for airports, airlines and travel tech companies.