The aircraft is the first of 18 that the airline has on order, and complements its fleet of eight shorter 787-8 aircraft operating on long haul services.
All of the aircraft will be based at London Heathrow, and will initially fly to destinations such as Abu Dhabi, Muscat, Austin, Kuala Lumpur and San Jose.
The 787-9 is likely to appear on a few domestic or European services for crew familiarisation. However, the first dedicated service is from London Heathrow to Delhi, starting 25th October 2015.
Keep an eye on our Boeing 787 Dreamliner Routes Page for all routes flown by each airline.