Jetblue is very clear that they close the door 15 minutes before, no "ifs, ands or buts". I learned the hard way on my Virgin/Jetblue Mileage run. Missed it by a minute because of "Even more Speed" TSA Pre line was slower than regular line. Thats life. You miss a flight you take the next one.
She wanted to travel as a "family", too bad. Its a 2 hour flight for goodness sakes.
Lesson: Dont book the closest flight to shabbos.
Lesson: Leave room for error.
Lesson: ...
I love the last minute $1145 OW tickets from Miami to NYC
...and learn how to book cheaper tickets.