My flight from NY to SFO was delayed by over 25 hours, all due to JetBlue's lack of planes and crew. As I awaited the last of my rerouted connections, in Long Beach, all of JetBlues departures were delayed, and no other airline's were. They did not even honor their so-called customer bill-of-rights as far as the credits it says they'd provide.
But that's OK, as I will never make the mistake of flying them again.

How about some specifics? If you want advice, you need to tell us what happened. If you came to FT to do a one-time rant, well -- it's done.

Ditto the above comment.

I'd love to know some circumstances. I have about 250,000 miles logged on JetBlue over the past four or five years.

In my experience, when there's a delay where JetBlue is at-fault, more than half the time I have an e-mail waiting on my phone by the time I land showing the credit they're giving us. In fact there were times where a small credit was given ($25 or $50) where I completely didn't expect it.

My experience has always been the exact opposite of your post.

I travel for business 150,000 miles a year. I AVOID JetBlue whenever I can. Here's why:

1) JetBlue refuses to participate in TSA PreCheck
2) Frequencies between some city pairs are so low that if they cancel a flight you are either stuck overnight, stuck for 10-12 hours or buying a walk-up fare on another airline. A $25 voucher is basically worthless in this situation
3) Getting through security at T5/JFK is the worst in the USA
4) I'm still sore about losing all my frequent flyer credits from True Blue iteration # 1
5) I have had as many poor customer service experiences on JetBlue as on United/AA/Delta
6)Jet Blue is the same price as network carriers but with fewer options

I have no idea why Jet Blue thinks I'm going to pony up for MINT from JFK to LAX when there are perfectly good options on AA/Delta/United on the same routes and I can't/won't use Jet Blue for my other flying. See 2) above

Agree on all fronts, but what does that have to do with OP's premise that the carrier doesn't honor its commitments. It's all disclosed and if you choose to pay for it, knowing all of the downsides, how is that a bad thing?

Sounds like a bad experience. But there's a difference between "B6 doesn't honor its commitments" and "B6 didn't honor its commitment."

As this seems to be a one off for the op, I would say it's the latter.

That's not really at all what happened or is happening, but feel free to believe it if you want.

JetBlue was not invited by the TSA to participate early on. They are now working on the IT systems integration work necessary to make it happen, but they have never "refused" to participate.

MCO and IAD are worse IMO.

I, too, would like to know more about the OP's experience, because I love JetBlue's hard product. But this post seems first to be damning with faint praise ("more than half the time"?) and second to be contradictory within itself -- "more than half the time" vs. "always". Maybe there's more than what you say? Thank you.

Very vague post. What specifically did they no honored?

If you are flying 150K a year, you should not be flying JetBlue as you would be top tier with the legacy carriers.

Do not expect a reply from the OP. They registered, posted, and have never returned to the boards.

That is a somewhat sweeping judgment. It is entirely possible that JetBlue fits well for some needs of a passenger who flies that many miles in a year. I know it does for me.

If you are doing the NYC-FL shuttle then B6 could be a top choice with options from all 3 NYC airports . If you qualify for Mosaic then you get free flight changes would is quite a good benefit . If earning the miles on flights overseas then that is a different situation. Depends on where your travel is. If you are flying to the Midwest then B6 would not be a good choice.

But then what are you going to do with the miles? Jetblue doesn't serve many destinations and limited redemption on partners. A legacy carrier provides more redemption options and higher value especially on premium cabin awards.

They serve a whole bunch of places I'm interested in visiting ex-NYC.

Plus, there can be value in flying just because the experience is better, even if the points are worse. Points are not (and, IMO should not be) the only motivation when booking a flight.

If you are stuck flying over XMAS holiday you more points when flying B6 or UA. For a 400$ fare you get 2400 B6 points which is could pay for 1/4 of an average (100$ fare) flight. On UA you would get a 1000 miles (assuming its NYC-FLA flight) which would pay for 1/10th of a flight . With family pooling it gets much better deal for families . Clearly if B6 does not have the frequency or locations than one should not fly them. If I needed to fly for business on a route B6 only had 1 flight a day, I most likely would not use them. With the new pooling option it may make sense for people to fly B6 for vacation and leave the business flying to a legacy carrier.