David Zalubowski

Low-cost airline Frontier today filed for an initial public offering, which means it likely plans to go public sometime in May. The Denver-based company last year flew 14.9 million passengers through 59 airports in the U.S., Mexico and the Caribbean.

Top line: The Denver-based carrier's income statement reflects its budget sensibilities, with $200 million in net income on $1.7 billion in revenue. This is up from $146 million of earnings on $1.37 billion in revenue in 2015.

Why the improvement? Three factors jump out. First, the average cost of fuel fell from $1.90 per gallon to $1.59 per gallon. Second, the average number of passengers per departure climbed from 154 to 173. then there is "non-ticket revenue" (i.e., booking fees, baggage fees, on-flight purchases), which jumped from $401 million to $726 million.

Market: Airline stocks have been major beneficiaries of the "Trump Bump," judging by the most popular airline ETFs. Budget airline rival Southwest recently hit an all-time high, while Spirit Air remains well below its 2004 highs (but still is up for the past year).

Go deeper

How Trump's push to reopen schools could backfire

Illustration: Aïda Amer/Axios

The Trump administration’s full-steam-ahead push to fully reopen schools this fall is on a collision course with the U.S.' skyrocketing coronavirus caseload and its decades-long neglect of public education.

Why it matters: Getting kids back to school is of paramount importance for children and families, especially low-income ones. But the administration isn’t doing much to make this safer or more feasible.

Coronavirus squeezes the "sandwich generation"

Illustration: Eniola Odetunde/Axios

As the coronavirus poses risks and concerns for the youngest and oldest Americans, the generations in the middle are buckling under the increasing strain of having to take care of both.

Why it matters: People that make up the so-called sandwich generations are typically in their 30s, 40s and 50s, and in their prime working years. The increasing family and financial pressures on these workers means complications for employers, too.

Why Scranton matters again in 2020

Biden and Clinton visit Biden's childhood home in Scranton in 2016. Photo: Melina Mara/The Washington Post via Getty Images

The hometown of Joe Biden and "The Office" is polishing its perennial status as a guidepost for the nation's political mood.

Driving the news: Biden returns to Scranton, Pa., today with a campaign stop just outside the city limits at a metalworking plant, where he'll deliver remarks on a plan to create jobs and "help America build back better."