JetBlue has had to navigate a tricky last few months. Reading between the lines, it seems that it's the international routes that are the problem with domestic demand still strong.
Too many airlines fighting over what is essentially a single market has been a familiar complaint within the European airline industry over the last few years. The legacy airlines, in particular, are still working out how best to compete.
Under newish CEO Ben Smith, Air France-KLM has improved its relationship with its unions. This new agreement will make it much easier for its French unit in particular to compete with low-cost rivals.
Lufthansa had it pretty easy in its home market for a long time, but sustained low-cost competition has come at a bad time. It will be hoping a revamped Eurowings is enough to see off EasyJet and Ryanair.
Ryanair's CEO sounds like he is rapidly losing patience with Boeing over the Max delays. Airlines clearly want to start flying it as soon as possible but only when it is declared safe.
Like bigger rivals such as Ryanair and EasyJet, Wizz Air is happy to take advantage of smaller European airlines pulling back capacity or going out of business entirely.
After 17 years, Bjorn Kjos is out as CEO. He is staying on as an advisor and still retains a minority stake, but does his departure make a sale more likely?
Lufthansa Group was terrified it would repeat past mistakes, so it built an airline to compete with Norwegian Air and other low-cost, long-haul carriers. Now that airline, called Eurowings, is kaput, and Lufthansa can chalk up another mistake.