Here are some tips for booking air tickets online with the best offers:

• Be flexible: Consider being flexible with your travel dates, and compare prices 2–3 days before and after your desired departure. 

• Consider positioning flights: Your local airport might not have the best fares, so you can try positioning flights to save money. 

• Use incognito mode: When you search with your login credentials, you might start getting notifications that can cause prices to increase. Using incognito mode prevents your previous history from being stored. 

• Compare prices: Compare prices with other booking portals. 

• Use flight deal services: Subscribe to flight deal services to receive alerts when there are cheap flights from your preferred departure airports. 

• Use Google Flights: Google Flights uses historical pricing data to tell you if prices are currently low, typical, or high for your selected trip. 

• Book early or at the last moment: Some say you can get discounts by booking early or at the last moment. 

• Avoid long weekends: Try to avoid flying on long weekends.