Travel·Posted on 29 Nov 201612 Expert Tips That Will Help You Get The Cheapest Flights PossibleWe asked an airline, a travel agent, and an online booking service to give us their best advice.by Gyan YankovichLifestyle Editor, AustraliaLinkFacebookPinterestTwitterMail Booking flights can be really, really stressful, particularly when you're on a tight budget. Here's what they had to say: 1. According to online research, it's best to book your international flight 17 weeks in advance. 2. If you're travelling domestically, it's best to book between four and 12 weeks in advance. View this photo on Instagram 3. If you don't have a set date in mind, try searching for the cheapest month to fly. View this photo on Instagram 4. Also research the peak season for the location you're travelling to and book a few days or weeks before or after that period. View this photo on Instagram 5. If your destination has more than one airport, be sure to check every route from your departure city. View this photo on Instagram 6. Follow airlines on social media, as they always post when they're having a sale. 7. And make sure you sign up to their newsletters too. 8. If you're planning a trip to Europe or the UK, keep your eye out for early-bird specials. View this photo on Instagram 9. Set up online price alerts for the route you want to take. Tap to play GIF Tap to play GIF 10. Flying Monday through to Thursday will always be cheaper than flying on a Friday night or weekend. View this photo on Instagram 11. Frequent flyer points are best used for flight upgrades, but can also be used to pay for flights if you collect enough. View this photo on Instagram 12. And when booking budget airlines, always check what's included in the fare before you finalise your payment. View this photo on Instagram