*Club domestic league appearances and goals, correct as of 21:20, 21 July 2023 (UTC) ‡ National team caps and goals, correct as of 21:20, 21 July 2023 (UTC)
Khaoui is a youth exponent from Tours. He made his Ligue 2 debut on 14 February 2014 against Istres in a 1–0 away loss.[6]
Marseille
On 18 June 2016, Tours confirmed that they had reached an agreement with Marseille for the sale of Khaoui.[7] He made his league debut on 14 August 2016 in a 0–0 draw with Toulouse, replacing Florian Thauvin at halftime.[8]
Loan to Troyes
On 26 July 2017, having spent only a month at Marseille, Khaoui was sent out on loan to Troyes. He made his debut on 5 August 2017 in a 1–1 draw with Rennes.[9]
Loan to Cannes
On 31 August 2018, the last day of the 2018 transfer window, Khaoui joined Caen on loan for the 2018–19 season.[10]
Clermont
On 14 August 2021, Khaoui joined newly promoted Ligue 1 side Clermont on a two-year deal.[11]
Khor Fakkan
On 11 June 2023, it was confirmed that Khaoui would join UAE Pro League club Khor Fakkan following the expiration of his Clermont contract.[12]
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