Qantas Airways Ltd says improvements to infrastructure in the Japanese capital mean it will be able to resume direct flights from Sydney to Tokyo Narita on Tuesday.The Flying Kangaroo has operated its Sydney-Narita flights via Hong Kong following the Japanese earthquake and tsunami last month.This avoided crews taking their rest breaks in Tokyo and having to deal with power cuts and transport issues.

Qantas chief executive Alan Joyce said on Friday the airline had worked closely with local and international regulatory bodies, as well as Australian government, to monitor the situation in Japan.Together with the advice of these authorities and our own assessments, Qantas is now satisfied that infrastructure services have returned to normal in Tokyo,Mr Joyce said in a statement.Our crew will now be able to undertake appropriate rest breaks.Qantas flies daily between Sydney and Tokyo.