How often do airlines add new routes?

ArielM0123 Question : How often do airlines add new routes
There is only one stop flight from Baltimore to Las Vegas available within a week I cherche.Si I do not book now and fly sooner, airlines do not usually add a new line? Do you know how many times? Best Answer:
Response

redneck_grad
I think they add a new flight to be canceled at midnight of PPL or something like that and look at the weekend or early morning when there are so many ppl arent fighting lookin Late Nite flights is also cheaper B / C is less PPL and fly

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