Singapore to LondonWSSS → EGLL
Singapore Changi Airport (WSSS / SIN) in Singapore, Singapore to London Heathrow Airport (EGLL / LHR) in London, United Kingdom is 5,876 nautical miles — 10,882 kilometres, or 6,762 statute miles — on the great circle, on an initial bearing of 322°. A business jet at Mach 0.85 and FL410 takes about 12h 35m block time in still air.
Published by Overfly · Airport data: OurAirports, · Last updated
Can the aeroplane make it?
Range here is usable range — book range at long-range cruise, less a reserve allowance. It is the figure that decides whether the leg closes, and it is the question most mappers do not answer.
Where the others would stop
For each type that cannot fly the 5,876 nm non-stop, the airport on or near the great circle that splits it into two legs that both clear, for the least extra distance. Types that would need more than one stop are marked.
| TYPE | BEST SINGLE STOP | LEGS | EXTRA |
|---|---|---|---|
| Falcon 7X | Kunduz (OAUZ), Afghanistan | 2,877 + 3,000 nm | 0 nm |
| Challenger 350 | Dushanbe (UTDD), Tajikistan | 2,952 + 2,925 nm | 0 nm |
| A320neo | Kunduz (OAUZ), Afghanistan | 2,877 + 3,000 nm | 0 nm |
| A320 | Kunduz (OAUZ), Afghanistan | 2,877 + 3,000 nm | 0 nm |
| B737 MAX 8 | Kunduz (OAUZ), Afghanistan | 2,877 + 3,000 nm | 0 nm |
| B737-800 | more than one stop | ||
| An-124 | Mazar-i-Sharif (OAMS), Afghanistan | 2,942 + 2,936 nm | 2 nm |
| Concorde | Kunduz (OAUZ), Afghanistan | 2,877 + 3,000 nm | 0 nm |
| King Air 200 | more than one stop | ||
| ATR 72 | more than one stop | ||
| Dash 8 Q400 | more than one stop | ||
Candidates are airports with a runway of 6,000 ft or more within 400 nm of the great circle, neither leg shorter than 15% of the whole, in still air. More in tech stops: where long flights stop and why.
Wind, month by month
The same business jet at Mach 0.85 and FL410, in each month’s average upper wind. WSSS to EGLL is quickest in May (13h 00m) and slowest in January (13h 20m); EGLL to WSSS is quickest in January (11h 55m) and slowest in June (12h 15m). The wind column is the average along-track component: plus is a tailwind.
| MONTH | WSSS → EGLL | WIND | EGLL → WSSS | WIND |
|---|---|---|---|---|
| January | 13h 20m | −30 kt | 11h 55m | +26 kt |
| February | 13h 20m | −29 kt | 12h 00m | +25 kt |
| March | 13h 15m | −26 kt | 12h 00m | +22 kt |
| April | 13h 05m | −19 kt | 12h 10m | +17 kt |
| May | 13h 00m | −16 kt | 12h 10m | +15 kt |
| June | 13h 00m | −17 kt | 12h 15m | +14 kt |
| July | 13h 00m | −16 kt | 12h 15m | +14 kt |
| August | 13h 00m | −17 kt | 12h 15m | +14 kt |
| September | 13h 00m | −16 kt | 12h 15m | +14 kt |
| October | 13h 05m | −21 kt | 12h 05m | +19 kt |
| November | 13h 10m | −25 kt | 12h 00m | +22 kt |
| December | 13h 15m | −28 kt | 12h 00m | +24 kt |
Monthly means for 1991–2020 from NOAA’s NCEP/NCAR Reanalysis, at the pressure level nearest the cruise (about FL387), along the great circle. An average is smoother than any one day’s jet stream, so a given flight can see much more or much less; airlines also move the track to use the wind, which this does not. More in how wind changes block time.
How far from an airport?
The worst point on the great circle is 2h 20m from the nearest suitable airport, Pokhara (NP-0003), at the one-engine diversion speed Overfly uses (430 kt in still air). A twin flying this track needs ETOPS 180 approval or more: ETOPS 180 allows up to 180 minutes from an alternate.
| EQUAL-TIME POINT | BETWEEN | TO EACH |
|---|---|---|
| 33.5°N 74.5°E | Siddharthanagar (Bhairahawa) (VNBW) and Pokhara (NP-0003) | 1h 22m |
| 38.2°N 67.9°E | Pokhara (NP-0003) and Astrakhan (URWA) | 2h 20m |
A suitable airport here is one OurAirports classes as large with a runway of 8,000 ft or more. An operator’s real alternates also depend on weather, fire cover and approval, and its diversion speed on the type. More in equal-time points and ETOPS, explained.
The two fields
Questions people ask about this route
How far is it from Singapore (WSSS) to London (EGLL)?
5,876 nautical miles. That is 10,882 kilometres or 6,762 statute miles, measured as a great circle between Singapore Changi Airport and London Heathrow Airport.
How long is the flight from Singapore to London?
About 12h 35m block time for a business jet cruising at Mach 0.85 at FL410 in still air, including 30 minutes of taxi, climb and descent. Wind moves that figure in either direction — eastbound across the North Atlantic or the Pacific it can be an hour or more. This page is deliberately still-air so the figure is stable and citable; to apply the month's average upper winds from NOAA, open the route in the mapper and switch on seasonal winds.
How much does wind change the flight time between Singapore and London?
In the average upper wind, Singapore to London at Mach 0.85 runs from 13h 00m in May to 13h 20m in January, and the return from 11h 55m in January to 12h 15m in June. Those are 1991–2020 monthly means from NOAA's reanalysis; on a given day the jet stream can make the difference larger or smaller.
What is the initial bearing from Singapore (WSSS) to London (EGLL)?
322° true at the departure point. A great circle changes heading continuously, so this is the initial bearing, not a constant one.
Which aircraft can fly Singapore to London non-stop?
Of the types Overfly carries, G650ER, G550, Global 7500, Falcon 8X, A350-900, B777-300ER clear it on usable range — that is book range less a reserve allowance. Falcon 7X, Challenger 350, A320neo, A320, B737 MAX 8, B737-800, An-124, Concorde, King Air 200, ATR 72, Dash 8 Q400 would need a tech stop.
For reference and planning interest. Not for operational flight planning. Distances are great circle on a sphere from WGS-84 coordinates; block times assume still air. © 2026 Overfly.Flights