More than 1,000 people attended a memorial Sunday for Inouye at Honolulu's National Memorial Cemetery of the Pacific.
Dignitaries included President Barack Obama, Senate Majority Leader Harry Reid, Hawaii's congressional delegation and a number of other senators and cabinet secretaries.
A Navy commander says the late Sen. Daniel Inouye was "an irreplaceable American."
A 19-gun cannon salute was fired as Inouye's coffin arrived at the cemetery. The service also featured a flyover by F-22 military jets and the playing of "Taps" by Democratic Sen. Jon Tester of Montana.
His final resting place is also where more than 400 members of the storied Japanese-American 442nd Regimental Combat Team — of which Inouye was a part — are buried.
Inouye was the first Japanese-American elected to both houses of Congress and the second-longest serving senator in U.S. history, at 50 years. He was 88.