What you need to know from Delta's fourth quarter earnings call

 Delta has a successful fourth quarter. Photo: Delta Air Lines. 

Delta has a successful fourth quarter. Photo: Delta Air Lines. 

Delta Air Lines on Tuesday reported its fourth quarter 2016 earnings, announcing $926 million in adjusted net income.

But now, if you follow the news, you probably know the basics. But here's some stuff announced on the conference call you may not have seen. 

  • On 161 days in 2015, Delta did not cancel a single mainline flight. This is a big deal, even though it does not include Delta Connection operations.

  • Delta plans to retire all of its 747s by the end of 2017. 

  • Delta's Net Promoter Score, which measures customer satisfaction, rose from a score of less than 34 in 2014 to 38 in 2015. The scale, I have just learned, goes from -100 to 100. 

  • Delta paid an average of $1.85 per gallon for jet fuel last year, down 30% from 2014.

  • In the first quarter, Delta expects to pay between $1.20 and $1.25 per gallon of jet fuel. 

  • You will not see a lot of new Delta routes in 2016. The airline expects to grow capacity between 0% and 2% this year.

  • For the first quarter, historically Delta's worst, the airline expects an overall margin between 18% and 20%. This is huge for an airline, especially early in the year, when fewer people travel. 

  • Sales of Delta's Comfort Plus product increased nearly 60% for the fourth quarter, on a year-over-year basis. In the quarter, revenues from the seats totaled $125 million.

  • Delta's is selling a lot more first class seats than in 2014. For the fourth quarter, "First class upsell increased 20% driven by a six point paid load factor improvement," President Ed Bastian said. 

  • Delta's agreement with American Express produced $400 million more incremental revenue in 2015, compared to 2014. 

  • Delta calculates the Paris terrorist attack cost it about $10 million in revenue. Europe is still not performing as well as it was before November.

  • In Latin America, Brazil is not doing well, primarily because of currency issues, but Mexico and the Caribbean are making money. 

  • Delta probably will eventually move terminals at LAX, from Terminal 4 and 5 to Terminals 2 and 3. But it early in the process. At this point, Delta has only signed a non-binding letter of intent. 

Want more on Delta's earnings? Be sure to read the full conference call transcript at Seeking Alpha.