Spirit Airlines: How the Model That Made It Work Became the Condition It Couldn't Survive

Spirit Airlines was the most profitable airline in America in 2014. It ceased operations on May 2, 2026. The coverage blamed a war, a fuel spike, and a blocked merger. The structural story starts a decade earlier.

In this episode, Dawn Porthouse examines how Spirit's ultra-low-cost model depended on a price gap wide enough that passengers would accept every tradeoff — and how that gap closed, slowly and deliberately, long before the final crisis arrived.

Deliberate Drift analyzes how companies change structurally over time. Not through sudden failure, but through slow drift — decisions that appeared rational while constraints accumulated beneath the surface.

Full analysis at deliberatedrift.com

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About the Podcast

Deliberate Drift

How companies change structurally over time — and why it's almost never obvious while it's happening.

Deliberate Drift analyzes how companies change structurally over time — not through sudden crises or obvious mistakes, but through slow, deliberate drift.

Some episodes follow companies whose options narrowed gradually: decisions that looked rational while constraints accumulated beneath the surface. Others follow companies whose structural position strengthened over time: decisions that looked ordinary or even wrong while advantages quietly compounded.

In both cases, the analysis focuses on what was building beneath the surface — and why it was almost impossible to see clearly while it was happening.

No dramatic framing. No hindsight conclusions. Just the structural logic of how businesses actually change.

Full written analysis at deliberatedrift.com

About your host

Dawn Porthouse

Analyst, writer, and entrepreneur — EA, MBA, MPA — with years working as a CFO and tax advisor to small and mid-sized businesses. I've spent that time inside the numbers, watching how they grow, stall, and quietly veer off course long before anyone calls it a problem.

Deliberate Drift is where I examine those moments — the decisions, assumptions, and slow shifts that shape where a business actually ends up, not just where it intended to go. It covers both sides: the drift toward constraint and the drift toward unexpected advantage.

I also publish Design Your Growth, a quieter space for small business owners thinking through what expansion actually means for them before they move.

I'm a full-time RVer, traveling the country with my husband and our dogs. Most of my thinking happens somewhere between the road and the work.