8 Hacks for booking cheap flights (infographic): 1. Search "Everywhere" using the best flight search engines 2. Book ahead, 1 month for the domestic flight, 6-8 months for international 3. Subscribe to offers of airlines, via email, social media or WhatsApp 4. Book on Monday and fly on Friday to get cheap flights 5. Catch error fares 6. Book a vacation package and save money on the flight 7. Book a stopover 8. Consider an air pass