Over the 12 months that ended on 30 June, 12,936,947 passengers used the airport’s four terminals, versus 6,169,823 a year earlier.
A total of 464,926 passengers used the airport’s international terminal in June, an increase of 26% from 367,681 in May.
However, compared with the same period last year, domestic passenger volumes decreased by nearly 7%, from 1,963,625 to 1,842,335, in June.
Melbourne Airport CEO Lorie Argus said: “As we welcome back more domestic travellers, we are giving our terminals a much-needed upgrade.
“This week we are proud to open new passenger amenities in Terminal 4, featuring new male and female bathrooms, all-gender toilets, an accessible toilet, an assistance animal relief area and a parents’ room complete with changing tables, microwave and a private feeding room.
“From today, Qantas travellers will notice more construction hoarding as we ramp up our renovation of Terminal 1, which when complete, will be the best domestic terminal in Australia.
“It’s part of our mission to become Australia’s favourite airport destination.”
In February, MEL revealed its plan to build a third runway, which will be located parallel to the existing north-south runway.