United Airlines continues to lead in transatlantic flights, offering more connections between the US and Europe than any other airline. The carrier's most frequented European destination is London Heathrow, bolstered by its recent expansion into new cities such as Bilbao, Faro, Palermo, and Funchal. This expansion marks United as the first North American airline to serve five destinations in Portugal.
The airline now operates flights to 32 European airports across 14 countries, a record number for United. However, services to Tenerife South were discontinued in May but are expected to resume later this year.
According to data from Cirium Diio, United plans an average of 103 daily departures from the US to Europe in June. This represents an increase from 99 daily flights last year and 76 before the pandemic in June 2019. The airline now accounts for more than one-sixth of all US-European services.