JetBlue.com, the airline's website, was apparently operational again today by 3 p.m. EST.
The airline, which is transitioning this weekend to SabreSonic as the host of the airline's reservations system, had planned to take down the website at around noon on Friday and to bring it back up this afternoon.
Such reservations systems transitions are massive in scope, and from outward appearances, JetBlue was doing everything right -- at least in terms of transparency to the customer.
There was a link at the top of the JetBlue.com homepage this afternoon for customers who may have been experiencing lingering website issues.
At about 2:15 p.m. EST today, JetBlue tweeted: "Track our Sabre cutover progress on our blog http://bit.ly/b9UCT2 How was your travel experience today? Let us know."
On JetBlue's B6 Blog, the airline says it started planning the switch around two years ago, and pointed to some of the actions it took to keep disruptions to a minimum.
"We have proactively pulled down 56 flights and capped the remaining flights at 40% load factors in the morning on Jan. 30 up to 60% load factors on Jan. 31. If a Customer misses his/her flight due to long check-in times, we are well positioned to get them on the next flight."
A video on the blog had officials discussing the effort and precautions that went into the transition, with officials noting that the changeover is not a one- or two-day affair, and that it will probably take until around Presidents' Day, Feb. 15, before the kinks are worked out.
I haven't seem any immediate press reports about major disruptions.