A friend of mine who is an EL AL frequent flyer sent them an email explaining that after his upcoming trip (for which he had already purchased tickets) he will be unable to fly on their airline again due to their new policy of violating shabbat.
He got back a nice letter explaining that the reason they flew on shabbat on that one occassion was not for financial considerations but rather because they wished to prevent suffering and distress to their passengers. They also stressed that they are the only airline in the world that plans its flight schedule without flights on shabbat.
If the chareidi community goes ahead with its ban, EL AL will most likely start scheduling regular flights on shabbat. They will change the status of the airline from shabbat oberservant with exceptions to not shabbat observant at all.
Instead of threatening not to ride their planes anymore because of a violation in a special circumstance, they could have done much better by praising EL AL and asking them to continue being shabbat observance and to try and find ways to not violate shabbat during times of crisis.