We also make sure we leave plenty of time for transits (eg. many hours) if we travel internationally

Recently we just bought air tickets to Malaysia and Bali; and yes, we've definitely saved on our air tickets! We've saved AUD $700 on the tickets from Melbourne to Kuala Lumpur compared to normal blackpool hotels uk retail ticket price. That's AUD $700 we can spend on shopping and dining while we're at our destination. How did we do it you ask?
Wait for sale or special offer. There are always special offers and sale, budget airlines or retail airlines. Subscribe to their newsletters so that you don't miss out on those great deals! I have bought a domestic blackpool hotels uk $1 ticket + airport tax and service charges one-way ticket few years back during a promotion by one of the budget airlines.
If taking budget airlines, make sure you read the terms and conditions . Some airlines will not replace your ticket if there are last minute cancellation or will not let you board if you check in late (very strict rules). We always check in online and get to the airport early.
We also make sure we leave plenty of time for transits (eg. many hours) if we travel internationally on budget airlines. (Somehow blackpool hotels uk budget airlines are more prone to delays and do not offer luggage transfer for connecting flights - you will need to collect your luggages and recheck in.)
Budget airlines may not be suitable for people with mobility problems as many budget airlines do not hire ramps to the plane and you may have to walk a long distance including walking up stairs to board the plane - always check with the airlines regarding these issues.