Southwest Confirms Boeing 737 Retirements

Southwest confirmed its continuing with ongoing fleet renewal efforts, retiring 14 aircraft from the 737 family in Q1 of 2025.

The major U.S. airline reports that of its aircraft retired, 12 were for the 737-700s and two were for the 737-800s.

Away from the fleet retirements, the airline confirmed it was also able to take delivery of 11 new aircraft. All of these newly delivered aircraft were for the Boeing 737-8, the middle-of-the-range variant of the broader MAX series.

Southwest confirmed that it will also not make any further updates to its fleet assumptions, given the uncertainties surrounding the acquisition of next-generation planes.

Those forecasts also centre back to fleet retirements, which play an essential role in the ongoing renewal unfolding at the U.S. carrier.

According to the latest fleet data published on April 23, 2025, the U.S. carrier has 782 active Boeing 737 jets, with 20 units listed as parked, totalling 802.

The split includes a reliance on 323 active 737-700s, the largest variant of the fleet in terms of operational numbers, followed by 257 737-8s, and lastly 202 737-800s.

Capacity Cuts Announced At Southwest

The retirements also align with Southwest’s current forecast, with capacity reductions expected to occur in the second half of 2025 as lower demand is anticipated.

Moreover, Southwest says it’s making necessary changes to its network in the coming months, also to cut costs and retain the more profitable segments currently forming part of the network.

One and a half percentage points of capacity are now expected to be cut; this is a basic estimate according to the airline and may be subject to change depending on how the following months unfold across the business.

Overall, full-year capacity is expected to increase by 1% year-over-year. However, this projection is based on forecasts and represents a slight downward revision from initial predictions made before the turn of the calendar year.

Much of the increase isn’t driven by the stellar demand being seen across the network, but rather by initiatives being implemented by the U.S. carrier related to asset utilisation, with aircraft now flying 24/7.

Flying during the night is one of the many endeavours that have been or are being launched by Southwest in a bid to increase profitability and align with what customers are requesting in the mid-2020s, rather than sticking traditionally with what was known and loved but may now be outdated.

Whether Southwest will be able to turn around its fortunes remains the multi-billion-dollar question in an ever-evolving but competitive industry as well.

Analysts who have long studied Southwest believe that there is much more revenue that can be generated from the company, hence why there has been such a push to make bold changes to its operations.