Delta says their basic economy fares generated $20 million in incremental revenue during the first quarter.
On the one hand, it’s not that much in the context of $5.5 billion in domestic revenue for the quarter (so far these fares are only in domestic markets). If true, of course, since domestic revenue was up only 1.4% basic economy would account for the entire increase in year-over-year first quarter revenue. However, the figure is likely to be grossly exaggerated based on faulty assumptions.