Cheap Flights from Sydney to London - Heathrow

Do you need to catch a flight to Sydney? Check out our domestic flights to Sydney. If Sydney is not your closest airport, then here are all our flights to London - Heathrow from United States (USA) and flights to United Kingdom. Maybe a different destination? Here are all the flights from Sydney

Cheapest Time of Year to Fly from Sydney to London - Heathrow

Return fares from Sydney to London - Heathrow by month, based on the cheapest return airfares found for each month.

The cheapest month to fly to London - Heathrow is November 2026, with return fares from $887 — 35% cheaper than the most expensive month (September 2026, from $1,369).

When Should You Fly to London - Heathrow?

Based on the fares we've tracked, November is typically the cheapest month to fly to London - Heathrow, with return fares from $887. September is the most expensive month, with the cheapest return fares around $1,369.

Across the year, return fares to London - Heathrow average around $1,166. If you can travel in the off-peak months of November, October and July, you'll generally pay up to 24% less than the yearly average.

Cheapest Sydney to London - Heathrow Return Prices

These are the cheapest prices for Sydney to London - Heathrow return airfares.

How I Want That Flight can help you

What's the benefit of using I Want That Flight for my Sydney to London - Heathrow flight?

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