Bolstered by continued traffic growth and lower fuel prices, Southwest Airlines announced a record first-quarter profit of $511 million on Thursday, a 13 percent increase compared to last year that exceeded analysts’ expectations.

The Dallas-based company also said it plans to accelerate the retirement of its “Classic” Boeing 737-300 fleet to be complete by third quarter of 2017, compared to the previously announced target of 2018.
“It is absolutely the best start we’ve had to a year in over two decades, so I’m very pleased,” Southwest CEO Gary Kelly said during a Thursday earnings call. “Of course a big driver… is a lower jet fuel price, but the revenue performance was also superb. This year is essentially the follow-through to a healthy expansion that began back in 2014, with the repeal of the Wright Amendment and then the aggressive expansion out of Dallas Love Field.”
The $511 million profit translates to $0.79 in earnings per diluted share and an operating margin of 19.7 percent, excluding special items.
Southwest shares rose 68 cents, or 1.45 percent, on Thursday to close at $47.73.
Southwest saw its fuel bill drop by $25 million, which helped temper an overall increase in operating expenses of 6.8 percent to $3.9 billion, largely driven by increasing employee costs that included new collective bargaining agreements with two of its unions. Total operating revenues were $4.8 billion, a 9.3 percent increase and a first-quarter record for Southwest.
Operating revenues kept pace with the continued growth of the airline, which increased its capacity by nearly 10 percent year-over-year. Southwest was able to match that with more passenger traffic, leading to a record first-quarter load factor — a measure of how full a plane flies — of 80.5 percent.
But like other airlines, Southwest saw a slight deterioration in a key measure of how much passengers pay per mile flown, which fell 3.6 percent, in part reflecting a drop in fares amid increased competition in some areas of the U.S.
That drop was partially offset by $125 million the company brought in through changes to its co-branded credit card agreement with Chase Bank, leading to a slight increase in overall unit revenues.
Company executives told analysts they expect positive unit revenue growth in the second quarter due to strong demand amid an increasingly competitive aviation landscape.
While fuel costs have been a major factor in airlines’ recent record profits, Logan Pulk, an analyst with Edward Jones, said Southwest’s growth in overall revenues made for a “very solid report.”
“I think Southwest benefits from a pretty solid branding that a lot of travelers recognize and like. That is flowing through into overall passenger demand, which was pretty strong in the quarter,” Pulk said. “At the end of the day, they’re still shrewd managers that are very good at controlling costs and they continue to do that quarter after quarter.”
Southwest’s decision to accelerate the retirement schedule for 50 of its its 737-300s poses a slight speed bump that could slow capacity growth toward the end of 2017, but executives don’t expect it to have a long-term negative affect.