Southwest and JetBlue might have the cheapest redemptions, but savvy frequent flyers generally still find more value in programs offered by American, Delta, and United.
It makes sense that Southwest is finally realizing what other airlines have known for years — partnering with international airlines makes good business sense.
Airlines like to strike a delicate balance with on-time performance. They want to be reliable, but they don't necessarily want sky-high on-time rates. An always-punctual operation is expensive.
This letter should get Sens. Markey and Blumenthal some attention. But beyond that, it is not likely to have much of an influence on the nation's airlines.