British Airways (BA) (United Kingdom)
British Airways is the flag carrier of the United Kingdom. From Bangkok, British Airways flies daily to both London and Sydney. British Airways also works closely with Qantas so the airlines can easily be combined. Take a flight to Sydney and connect to one of Qantas' many domestic flights within Australia or over to New Zealand. And of course if you are heading to Europe, fly to London and take a connecting flight to BA's many European destinations. British Airways also offers a Premium Economy Class (World Traveler Plus) on its flights to/from Bangkok. The airline is part of the OneWorld alliance so you can collect your miles on qualifying fares.