By the time I was in my 20s (in the early 2000s), the situation was totally different. The most ridiculous: sometime in 2009, JetBlue had a deal, announced on radio, that you could purchase unlimited flights for 3 months for only $500. As my fiancee had moved to the western US for her medical school residency program, this was a godsend. I visited her every weekend... I don't remember if I took a full 12 trips, but it was more than 10. I would leave Boston immediately after work on Friday and then take a redeye and arrive back in Boston at 7am on a Monday. I haven't seen a deal like that in a long time, and flying has increasingly gotten worse since that experience, but it still is relatively affordable compared to my high school years.