Cheap Flights from Sydney (SYD) to Madrid (MAD) from HK$3,845~

Within the past 7 days on Expedia, for flights departing within the next year, the lowest price listed for a round-trip journey between Kingsford Smith Intl. Airport (SYD) and Adolfo Suarez Madrid-Barajas Airport (MAD) was HK$6,917. Cheap tickets don't last long, so make sure you book yours ASAP. Prices and availability are subject to change. Additional terms apply.

Most flights can be canceled online, but whether or not you are charged a fee differs between airlines. If you do have to cancel your break, follow the easy instructions in the Customer Service Portal.

Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for Sydney Airport to Madrid Airport flights, you'll see a "no change fees" filter for you to select.

The distance is around 17,700 kilometers, so fill your carry-on bag with all the items you need to make your journey comfortable. Wondering what to take on board your Sydney to Madrid flight? Earplugs, a sleep mask and a neck pillow are a few essentials.

Right now, no airlines offer direct flights from SYD to Madrid Airport. You'll need to book a flight with at least one stop. To get the best price and connections, lock in your fare well ahead of time.

Late planners can sometimes pick up a bargain, with some of the cheapest airfares from SYD to MAD cropping up a few weeks before the date of departure. If you'd rather book ahead, Expedia compares and updates all the best flight deals frequently — as early as 12 months in advance in some cases. It does depend on the carrier though, as not every airline advertises prices so far in advance.