Alaska Airlines from General Wayne A. Downing Peoria International Airport to San Francisco

In analyzing the aerial journey from General Wayne A. Downing Peoria International Airport to the vibrant city of San Francisco, one necessitates a scrupulous breakdown of various components, from flight schedules to baggage allowance, and of course, the art of securing the best airfare. The endeavor being inherently intricate offers ample scope for reflective introspection, each element varying vastly in its contributing to the overall flying experience.

The concept of 'Flight duration' emerges as a focal point in our comprehensive analysis. As one might well imagine, direct flights provide the shortest duration. The brilliance of Alaska's non-stop flights lies in its efficiency, enabling one-way or round-trip travels that span less than six hours, a clear advantage over connecting flights. Despite the comings and goings of multiple flights throughout the day, the impressive punctuality of the schedule places Alaska at an admirable benchmark in reliable service.

Even while resonating with the journeys of frequent flyers, the aforementioned facts prompt personal reflection on the notion of time. Time, in these scenarios, segues from being a mere measure of the earth's rotations to an encapsulation of personal experiences and milestones marked during these flights.

Continuing on our exploratory path, 'Airfare' presents itself as a vital facet. From the fiscal prudence of securing cheap flights to the consideration of last-minute flights, financial investment in flying becomes a significant point of critical examination. The fluctuating nature of costs depending on factors like the best time to book or flight deals on offer creates a vivid tapestry of financial predictability and spontaneity. Here, the reflective mind meanders through past experiences of the joyous triumph of securing a cut-rate round trip, or the bitter sting of a costly, last-minute one-way ticket.

Our detailed investigation leads us next to 'Baggage allowance'. Interpreting this aspect, it's worth noting Alaska's generously stipulated allowances across different passenger categories - economy class, premium economy, business class, and first-class, catering effectively to varying travel needs. This allowance aspect simultaneously evokes personal thoughts on the symbolic weight that one's luggage carries, a laden manifestation of much more than simply belongings - but also of memories and experiences from our journeys.

Integrating my analyses of these different factors, I also perceive a larger narrative. The narrative of Alaska the airline, yes, but also of Alaska, the state. To explore Alaska even in this reduced, practical context, resonates with echoes of an extraordinary space, the largest among US states, yet the third least populated. A place where the moose population outnumbers the human populace. This intriguing fact adds further depth to the unique character embodied in the journeys through Alaska's skies.

Weaving through details and nuances, embracing the analytical while simultaneously experiencing the reflective, we journey together through this expedition of flying from General Wayne A. Downing Peoria International Airport to San Francisco via Alaska. Each traveler's journey is unique, informed by their personal experiences, perspectives, and also importantly, the details that define their chosen path. The combined essence of analysis and reflection is perhaps the true traveler’s perspective - an outlook that cherishes the factual while savoring the experiential, the tangible, and the introspective.