Prodigy

Saved money on airline tickets.

Prodigy Communications Corporation (Prodigy Services Corp., Prodigy Services Co., Trintex) was an online service founded in 1984 that offered its subscribers access to a broad range of networked services, including news, weather, shopping, bulletin boards, games, polls, expert columns, banking, stocks, travel, and a variety of other features.

wikipedia

1,200 bit/s and then 2,400 bit/s modems.