From the Australian Aviation magazine:
"The last service between Cairns and Guam, which are operated by Boeing 737s with flight numbers UA94 and UA95, will be on September 26 and 27, United said in a statement.
The Star Alliance member is also cancelling its daily Guam-Seoul Incheon flights from September 30.
“We have taken this decision because the services’ financial performance did not meet our expectations,” United said.
The Cairns-Guam route, which according to the Airline Route website began in 1998 with Boeing 727 aircraft, was inherited from Continental Micronesia when United and Continental merged in 2010."
United Airlines Boeing 737-800 landing at Cairns last month - file photo
As noted by a reader on Australian Aviation, this was the only flight between Australia and Micronesia.