The number of passengers flown by EasyJet last month rose by 14.2%.
The UK budget airline carried more than one million more passengers than in September 2017.
Carryings were up to 8.8 million in the month from 7.7 million a year earlier.
However, the carrier’s load factor marginally down to 92.8% from 93.6%.
September’s numbers gave easyJet a rolling annual total of 88.4 million passengers, a rise of 10.2% year-on-year with a load factor of 92.9%.
The figures released today include the airline’s operations from Berlin Tegel airport.
EasyJet said: “Non Tegel passenger growth is in line with the figures provided in our pre-close statement released on Friday 28 September, with load factors for September 2018 being broadly flat compared to September 2017.”
Meanwhile, British Airways and Aer Lingus owner International Airlines Group reported a 7.1% year-on-year increase in carryings to 10.5 million in September.
British Airways load factor fell by 1.2 percentage points to 83.3%.
IAG said that group traffic went up by 5.9% year-on-year measured in revenue passenger kilometres as capacity rose by 7.2%.