A third person has been charged over the disappearance and murder of teenager Pheobe Bishop.

Queensland Police have charged a 30-year-old man with two counts of accessory after the fact to murder, alleging he used Pheobe’s mobile phone to interfere with investigations.

The man was charged about 7pm on Tuesday in Bundaberg West, one day after family and friends farewelled the 17-year-old at a private service in the south-east Queensland town.

Pheobe was last seen near Bundaberg airport about 8.30am on May 15 after booking a trip to Western Australia to see her boyfriend.

Queensland Police allege her housemates, Tanika Bromley and James Wood, drove Pheobe close to the airport in a grey Hyundai, but no one left the car.

She was allegedly murdered and her body was moved more than once from the Good Night Scrub National Park, an hour’s drive from the airport.

Phone data led officers to focus their search on the national park before her remains were found on June 6.

Wood, 34, and Bromley, 33, remain behind bars and will face court on August 11, charged with murder and interfering with a corpse.

Six weeks after Pheobe disappeared, family and friends laid the “free-spirited” teen to rest while donning bright colours at a service on Monday.

Multiple candlelit vigils attended by hundreds have been held across Bundaberg and Gin Gin in recent weeks, remembering how Pheobe lived life to the fullest.

The 30-year-old man charged is expected to face the Bundaberg Magistrates Court on Wednesday.

-AAP