The London mayor has announced he has appointed "a mighty team of experts" to help develop UK airport capacity and find alternatives to the expansion of Heathrow Airport.
Giving evidence to MPs on 11 February 2013, Mr Johnson insisted Heathrow Airport was full, and was in no position to provide a "four-runway, open-24-hours airport" that south-east England needed.
He told MPs that all the other ideas for airport expansion stemmed from the "very difficult problem" of capacity at Heathrow, which was already around 98% to 99% full.
The government has asked a commission headed by Sir Howard Davies to advise on the UK's future airport capacity needs.
Heathrow bosses are keen to see a third runway built at the west London airport, but the government has ruled it out for the time being.
Mr Johnson has opposed any expansion of Heathrow and has argued instead for a new purpose-built airport in the Thames Estuary, since nicknamed "Boris island".
The committee's inquiry is seeking to establish what the current constraints are on the UK aviation sector, and how any future development could impact on carbon emissions.