Sydney (SYD) → London (LHR)
Sydney Kingsford Smith International Airport to London Heathrow Airport · 9,190 nm (17,020 km) · about 20.5 h nonstop
Cheapest economy and business class fares, checked daily · 1 day of history
Booking links are plain searches — none are affiliate links, and the site earns nothing if you book. Prices are the cheapest fares other travellers recently found, not live availability — always confirm the fare before you pay.
Economy
last checked 5m agoHainan Airlines · 1 stop · 32h 30m · travel Oct 20
| Checked | Fare | Airline | Stops | Travel | |
|---|---|---|---|---|---|
| 2026-09-09 | $491 | Hainan Airlines | 1 stop | Oct 20 | Book ↗ |
Business class
last checked 5m agoHainan Airlines · 1 stop · 32h 30m · travel Oct 20
| Checked | Fare | Airline | Stops | Travel | |
|---|---|---|---|---|---|
| 2026-09-09 | $491 | Hainan Airlines | 1 stop | Oct 20 | Book ↗ |
Airlines selling the cheapest fares
Which carrier had the lowest fare on each of our checks over the last 90 days.
- Hainan Airlines ×2
Notable flights on this route
- QF1 Qantas — Qantas's Kangaroo Route flagship, Sydney to London via Singapore.
About this route
Sydney (SYD) to London (LHR) is one of the long-haul trunk routes behind our notable flights, flown daily by competing carriers. Flown by QF1. It links Sydney Kingsford Smith International Airport in Australia with London Heathrow Airport in United Kingdom. The great-circle distance is about 9,190 nautical miles (10,578 statute miles), so expect roughly 20.5 hours in the air nonstop.
Every night we ask our fare provider for the cheapest one-way economy and business class fare other travellers recently found on this route and record it. A fare is flagged as a deal when it falls at least 30% below the route's 90-day typical price. Prices are a research starting point, not live availability — the booking links open the itinerary so you can confirm what's on sale right now.
Fares are approximate, from public sources, and can be stale — always verify before booking.