Cheap flights from Sydney to the United Kingdom from $390

The month of February is, on average, the cheapest month to fly to United Kingdom from Sydney, with most prices found around $1,476. If you don’t want to visit United Kingdom in February, then you should wait until May to fly from Sydney, when ticket prices are also cheap, with an average price of $1,492.

The cheapest day to depart on your flight to United Kingdom is on a Tuesday when prices can be found for as low as $2,021. 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 $2,453.

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 $1,999 when looking at flights departing in the afternoon. At midday is when there is more demand to fly to United Kingdom, so prices are often more expensive at around $2,242 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 $1,821 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 $1,677 on momondo.

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

Beijing Capital Airlines, AirAsia X, and Malaysia Airlines are the most popular carriers operating from Sydney Kingsford Smith to United Kingdom

Emirates, Etihad Airways and Qantas Airways are the top three most popular airlines that fly to United Kingdom from Sydney according to our data. Emirates is the first choice among our users, with 30% of people opting to fly with this airline when travelling to United Kingdom. Keep in mind that there are 25 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 3 per day as of March 2026. The most frequent departure time is 16:00, with 100% of daily flights leaving in the afternoon.

21 flights are operational weekly from Sydney to United Kingdom as of March 2026. The most popular departure day for this route is Mon, with 14% of flights per week taking off on this day.