Heathrow saw its busiest-ever May with a record 6.34 million passengers travelling through the UK hub, representing an increase of 1.7% year-on-year.
May also set new single-day passenger records for arrivals (131,327 on 31st May), departures (129,059 on 22nd May) and overall (246,516 on 22nd May)
Larger, quieter aircraft continued to be a driver for passenger growth at Heathrow. Seats per aircraft increased 2.5% to 207.7 while passengers per aircraft rose 1.4% to 154.2
Within emerging markets, passenger volumes were particularly strong to China, (up 19.2%), Mexico (+15.9%) and Brazil (+11.2%). Middle East traffic was also up 2.3% as carriers added new A380s to these segments.