Jordan will execute Wednesday an Iraqi woman on death row over a failed bombing after having vowed to avenge the murder of a Jordanian pilot by Islamic State jihadists, an official said.

"The sentence of death pending on... Iraqi Sajida al-Rishawi will be carried out at dawn," the security official said on Tuesday, speaking on condition of anonymity.

Rishawi, the would-be suicide bomber, was condemned to death for her participation in deadly attacks in Amman in 2005, and IS had offered to spare the life of the Jordanian fighter pilot, Lieutenant Maaz al-Kassasbeh, if she were released.

"Jordan's response will be earth-shattering," Information Minister Mohammed Momani said earlier on television, while the army and government vowed to avenge the pilot's murder.