A320 Captain reported pressurization pack failed which resulted in a decision to return to the departure airport.

Narrative

I was the pilot not flying (PNF) and FO Name was the pilot flying (PF). After an uneventful departure and initial cruise at FL350; ATC routed us direct to ZZZZZ intersection; where we remained in radar contact and VHF coverage. I completed the cruise checks on the system status pages and noted no abnormalities. Approximately 1 hour after takeoff and 100 NM prior to ZZZZZ we received an AIR (L) WING LEAK ECAM. FO Name remained the PF and I ran the ECAM and checklists. I noted that on the system status bleed page the engine bleed valve (L) had closed and the crossed bleed valve was shut. After finishing the ECAM and running the QRH; I used the SAT phone to contact both Dispatch and Operations to discuss the situation. We agreed that the most prudent option was an air-return to ZZZ as we lost the left pack as well as the use of anti-ice (and cloud avoidance couldn't be guaranteed; especially given the weather enroute due to the tropical depression). In the discussion of our circumstance with ATC; FO Name stated that ATC 'initiated the [priority handling' on their end' and after I was brought in the loop; I elected to remain in an priority status and not downgrade it as I wanted to ensure that we had the ability to remain clear of clouds.Once I finished speaking to the company; I notified the flight attendants of our intentions to return to ZZZ; with normal cabin procedures.We noted that we were dispatched with tankering fuel; and therefore would need to burn approximately 800 lbs. to get below max landing weight. I asked for several early step-downs (as there were no clouds between us and ZZZ) as well as running the APU (but ensuring not to open the bleed valve; especially due to the wing leak). We made an uneventful approach and landing on XXL at ZZZ (below max landing weight) and parked next to the spare aircraft that we would then use to fly back to ZZZZ.