Saliba signed for the Gunners last summer but was loaned straight back to Saint-Etienne to continue his development.
The 19-year-old defender missed three months of the season with a broken foot as the Ligue 1 campaign was cut short due to the coronavirus pandemic.
Saliba’s initial loan deal only runs until June 30 but he would be unable to play for Arsenal should he return to the Emirates Stadium.
Arteta is therefore keen for Saliba, who cost Arsenal a reported £27million last July, to stay put and take his place in the showpiece event.
“I think he needs to stay there,” he said when asked about Saliba’s immediate future.
“We’ve got an agreement with Saint-Etienne, he’s been over there all year. He has earned the right to play in that final if the manager (Claude Puel) wants to do that”.
“I think we have to give him the opportunity to do that, to enjoy that and we can have him after that.”