Cheap flights from Sydney to the United Kingdom from $643

The month of February is, on average, the cheapest month to fly to United Kingdom from Sydney, with most prices found around $1,588. If you don’t want to visit United Kingdom in February, then you should wait until November to fly from Sydney, when ticket prices are also cheap, with an average price of $1,682.

The cheapest day to depart on your flight to United Kingdom is on a Monday when prices can be found for as low as $2,046. This is often the case because there is less demand to fly during this day of the week. When flying out on a Friday, the most expensive travel day of the week, you can expect to see flight prices from Sydney to United Kingdom for around $2,627.

Flying to United Kingdom from Sydney in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $2,225 when looking at flights departing in the afternoon. In the evening is when there is more demand to fly to United Kingdom, so prices are often more expensive at around $3,756 per ticket.

Fly from Sydney Kingsford Smith to London Heathrow for the best Sydney Kingsford Smith - United Kingdom flight prices

You are more likely to see cheaper flights to United Kingdom from Sydney when booking weeks ahead of your departure date. In general, you can expect to find flights to United Kingdom for around $1,939 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to United Kingdom from Sydney for as low as $1,746 on momondo.

There are 4 cabin classes available to choose from on Sydney to United Kingdom flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

China Eastern, AirAsia X, and Etihad Airways are the most popular carriers operating from Sydney Kingsford Smith to United Kingdom

Etihad Airways, Emirates and Qatar Airways are the top three most popular airlines that fly to United Kingdom from Sydney according to our data. Etihad Airways is the first choice among our users, with 36% of people opting to fly with this airline when travelling to United Kingdom. Keep in mind that there are 23 different airlines that fly to United Kingdom on a routine basis, so you have a few additional options to choose from.

The number of flights available between Sydney and United Kingdom is 2 per day as of July 2026. The most frequent departure time is 14:00, with 100% of daily flights leaving in the afternoon.

20 flights are operational weekly from Sydney to United Kingdom as of July 2026. The most popular departure day for this route is Mon, with 15% of flights per week taking off on this day.