Cairns to London
19h 15m The flight from Cairns International Airport (CNS) to London Heathrow Airport (LHR) covers 15,152 km (9,415 miles) and takes approximately 19h 15m gate to gate for a typical jet.
The route heads north-west on an initial great-circle bearing of 330°, passing near 41.3° N, 107.5° E at its midpoint.
The route
The great-circle path — the shortest line between the two airports across the curve of the earth. On a flat map it looks bent; on a globe it is straight.
Flight time at different cruise speeds
Aircraft type, winds and routing all move the real number. This is the same distance flown at different speeds, plus the 25-minute ground and climb allowance.
| Typical of | Cruise speed | Airborne | Gate to gate |
|---|---|---|---|
| Turboprop / regional | 550 km/h | 27h 33m | 27h 58m |
| Narrowbody jet (A320, 737) | 780 km/h | 19h 26m | 19h 51m |
| Widebody jet (777, 787, A350) | 900 km/h | 16h 50m | 17h 15m |
| Private jet (Gulfstream) | 850 km/h | 17h 50m | 18h 15m |
Headwinds on an eastbound long-haul routinely add 30–60 minutes; the same route westbound can be quicker. Airlines publish schedules with padding built in.
Both airports
| CNS | LHR | |
|---|---|---|
| Airport | Cairns International Airport | London Heathrow Airport |
| City | Cairns | London |
| Country | Australia | United Kingdom |
| ICAO | YBCS | EGLL |
| Coordinates | -16.8789, 145.7495 | 51.4707, -0.4599 |
| Elevation | 10 ft | 83 ft |
Questions
How long is the flight from Cairns to London?
A non-stop flight from Cairns (CNS) to London (LHR) takes about 19h 15m. The great-circle distance is 15,152 km (9,415 miles, 8,181 nautical miles), flying north-west on an initial bearing of 330°.
How far is Cairns from London?
15,152 kilometres in a straight line over the earth's surface — 9,415 miles or 8,181 nautical miles. Actual flown distance is usually 2–5% longer because aircraft follow airways, avoid weather and route around restricted airspace.
Is there a non-stop flight between CNS and LHR?
This page calculates the direct-line time and distance; it does not track airline schedules. At 15,152 km the route is at the extreme end of what any airliner can fly non-stop, so a connection is likely. Check an airline or booking site for what is actually scheduled.
What should I expect on a 19h 15m flight?
Anything past six hours is a long-haul flight: expect at least one meal service, a significant time-zone shift, and enough sitting that circulation and hydration start to matter. Cabin altitude, dry air and disrupted sleep do more damage to a training routine than the flight itself.
Airport coordinates from OurAirports (public domain). Distance is a great-circle calculation; flight time uses the model described on the method page. Flight times are great-circle estimates for planning only — always check the airline's published schedule.