This hasn't been my experience at all. I've been seeing higher prices every year for the past several years. In 1982 I flew roundtrip Ohio to Europe for $198. I can't even get from Reno to San Francisco for that, now. Maybe dollarwise, flying is lower when adjusted for inflation, but it sure isn't the same value for your money. Anyway, it doesn't matter. Tickets are paid for. We're going. Have a good trip.
You cannot claim that airfares have gone up based on ONE fare you paid in 1982, which was probably due to some major seat sale and/or on a charter airline.