Uh oh … if you’re a Southwest Airlines frequent flier, some bad news: they’re configuring the new 737-800 with 175 seats, 38 more than the 737-400.

If you’re taller than average, good luck with your knees.

Of course, Southwest is all smiles: “It’s going to make us more profitable from Day One,” COO Van de Ven said to loud applause.

I’ve flown the 737-900 a few times on Lion Air, and it’s sardinesville, with almost 200 passengers.

Welcome to the 787-800!