Spirit Airlines (NYSE:SAVE) posted an all-time bottom-line high for the fiscal year in its just-released fiscal Q4 and 2012 results. For the quarter, the company's operating revenue totaled $328 million, up nearly 20% from the same period the previous year. Net profit came in at $19.6 million ($0.27 per diluted share), against Q4 2011's bottom line of just under $24 million ($0.33).

For the full year, operating revenue advanced by 23% to $1.3 billion from 2011's $1.1 billion. Net profit notched an all-time record for the company at $108 million ($1.49 diluted EPS) for the year, which was a 42% improvement over the prior year's $76 million ($1.43).

In addition to posting that all-time-high bottom line, Spirit Airlines pointed out that 2012 represented its fourth consecutive year of profitability.