Southwest Airlines could have its first passengers on the long-delayed Boeing 737 MAX 7 by March 2027, according to an internal rollout plan reported by View from the Wing. The FAA certified the jet on August 3 after years of holdups, and Southwest now has to clear its own hurdle: training, inspections, documentation and FAA-observed validation flights.

The timeline, as laid out in the document, runs like this. Around 27 aircraft are already built and deliveries start mid-to-late December 2026, with newly manufactured planes following in February. Prep work — configuration and maintenance — happens at Paine Field, Phoenix and Kansas City, and each prebuilt jet must fly at least five times before carrying passengers, including a simulated extended-overwater flight of more than 3.5 hours. The airline wants the MAX 7 in published schedules by the end of 2026, with service flagged as subject to change.

So what will you actually get onboard? A 150-seat cabin with Recaro seats, extra legroom rows marked with indicators, Starlink wifi, in-seat power, larger overhead bins and a refreshed interior. There are two exit rows and three lavatories — two at the back — which beats the two bathrooms on Southwest's ageing 737-700s. The 150-seat figure is deliberate: US rules require one flight attendant per 50 seats, so a 151st seat would mean hiring an extra crew member on every flight.

Starlink is arguably the biggest win here. Southwest has committed to fleet-wide installation by autumn 2027, which would fix one of its weakest points — spotty, slow wifi that made working in the air a gamble. The MAX 7 also takes over extended overwater routes currently flown by older 737-800s, with COO Andrew Watterson naming Burbank–Honolulu, hot-weather Hawaii departures from Phoenix and Las Vegas, and interisland flying as likely assignments.

Fleet-wise, this is mostly about replacement. Southwest still operated 271 Boeing 737-700s averaging 20 years old at the end of September, and expects roughly 67 deliveries against about 60 retirements this year. The MAX 7's 150 seats add 13 per plane — about 9.5% — versus the 137-seat -700, giving the airline more capacity on thinner routes where the bigger MAX 8 would be too much plane.

One notable gap: no first class. When these jets enter service, Southwest will be the only major US airline without a premium cabin — even Frontier and Allegiant are adding one, with Frontier's debuting on March 5, 2027, the very month Southwest hopes to fly the MAX 7. Still, for travellers, the practical takeaway is simple: from spring 2027, if you're booking Southwest, you may find yourself on a noticeably newer plane with wifi that actually works, power at your seat and bins that fit your roller bag. Worth checking the equipment type when fares open up.