WASHINGTON (Reuters) - Japan Airlines (9205.T: Quote, Profile, Research) agreed to plead guilty to price fixing on international cargo shipments and pay a $110 million fine, the U.S. Justice Department said on Wednesday.

In the plea agreement, which was filed in the U.S. district court for the District of Columbia on Wednesday, Japan Airlines acknowledged conspiring to fix freight prices between 2000 and 2006, the Justice Department said.

British Airways (BAY.L: Quote, Profile, Research) and Korean Air Lines (003490.KS: Quote, Profile, Research) pleaded guilty last year and paid fines for participating in the conspiracy. In January, Qantas also pleaded guilty to price fixing.

British Airways and Korean Air each agreed to pay $300 million in fines each while Qantas agreed to pay $61 million. The European Union and Australia also have price fixing probes under way.

The Justice Department said Japan Airlines conspired to fix prices to ship products on certain trans-Pacific routes, according to court documents.

Japan Airlines told a Japanese newspaper in October 2007 that it anticipated roughly 20 billion yen ($171 million) in fines from a global price fixing probe by U.S. and EU officials.

The plea agreements are part of a continuing, wide-ranging investigation of the air transport industry by the Justice Department's antitrust division.

In February 2006, U.S. and European officials raided airlines on both sides of the Atlantic as part of the probe.

(Reporting by Diane Bartz; Editing by Steve Orlofsky)