Commercial Fixed Wing
Flight Crew Air Transport Pilot (ATP)
Workload; Distraction; Confusion; Communication Breakdown; Situational Awareness
ATC Issue All Types; Deviation / Discrepancy - Procedural Landing Without Clearance
General None Reported / Taken
Human Factors; Environment - Non Weather Related
We failed to switch to Tower Controller and get a landing clearance. Lack of recent flying experience; my 2nd leg after 3 months off. Fatigue due to not getting much sleep in before red eye flight. Lack of recent flying by non flying pilot as well. Slam dunk approach by Controller; task saturated. I needed the gear and flaps out and was asking for them at the same time the Controller was switching us to Tower.I don't recall the Approach Controller asking us a second time to switch to Tower; the Tower said later when we called them that they tried us on guard (I did have it tuned and up a little bit; surprised I didn't hear it) and did light signals but didn't mention calling Approach Control and asking them to tell us to go to Tower again.  The other thing is tough; I know why the pilot flying doesn't do the flaps and gear himself; but in this case my asking for them right after the non flying pilot read back instructions to switch to Tower I think caused him forget to switch over and check in.  Lastly; it's pretty ingrained in me to call out 'landing' before touching down; but going forward I'm going to be less concerned about saying the word and concerned with the 3 things we need to land.
Air carrier First Officer reported landing without a clearance.