Flight Crew Multiengine; Flight Crew Instrument; Flight Crew Air Transport Pilot (ATP)
Troubleshooting; Situational Awareness; Fatigue
No Specific Anomaly Occurred Unwanted Situation
Flight Crew Became Reoriented
Environment - Non Weather Related; Human Factors
Since COVID; these particular international schedules have been in a lot of flux. Most sequences; up until now; have been 'rockets' where we only get to rest a relatively short amount of time during the day after an all-night flight; and then fly back all night. I have written about this before; and this is to reiterate: these sequences are sub-optimal in terms of safety due to the limited rest. The threat on these sequences is NOT a virus; it's the cumulative fatigue after being up for two straight nights. There is no reason not to make ALL these flights have a longer sleep opportunity with a 30 plus hour layover.  Three times in the last 2 months we lined up for the wrong runway in ZZZ after the double all-nighter. Fortunately; someone caught the error before it was critical; but it is reflective of the fact that the three of us are sleep-deprived. In this aircraft category; you have an older pilot group to begin with. Give us the opportunity to get enough rest.Upon arrival in ZZZ; I was extremely tired; and felt my ability to monitor was degraded.Schedule all these international trips as longer layovers. It's a safety issue; pure and simple.
Air Carrier First Officer reported fatigue related concerns with the scheduling of particular international flights since the COVID-19 pandemic began.