Video report

Passengers were last night warned to beware of a third day of flight chaos at Heathrow's Terminal 5 today as a further 54 air trips were cancelled.

As travellers had to deal with a second day of airline chaos since the new terminal opened on Thursday, beleaguered British Airways chief executive Willie Walsh warned of more to come today.

Passengers have already been left with travel plans in disarray as nearly 70 flights were cancelled on Thursday, marring the opening day of the flagship £4.3bn terminal, with a further 80 trips scrapped yesterday.

The flights affected today, which amount to 16% of the traffic going in and out of Heathrow, will be from the airline's European and domestic short-haul schedule.

Mr Walsh said yesterday: "We've had a much better start today. While there are still some problems to overcome we are planning to operate a larger proportion of our flying programme tomorrow.

"I would expect some disruption, but I think it will get better every day as we become accustomed to the building and the quirks of the systems.

"I'd like to apologise to those customers who have suffered disrupted journeys or baggage delays. Our staff in the terminal are being supported by around 450 volunteers and they're working really hard to look after our customers and offer them the world-class experience that we know Terminal 5 can deliver."