A flight from London (LHR) to São Paulo (GRU) typically takes about 12 h 25 min. The return, São Paulo to London, takes about 11 h 40 min. The distance is 9,460 km (5,878 miles) along the great-circle path.
The jet stream, a fast river of air at cruising altitude, blows mostly from west to east. Flying São Paulo to London you ride it, about 11 h 40 min; flying London to São Paulo you fly into it, about 12 h 25 min. It is the same distance either way, which is why the westbound leg is usually the longer one.
São Paulo is 3 hours behind London (standard time; the gap shifts by an hour for part of the year when only one of them is on daylight saving). Leave London at 10:00 and you land at about 19:24 São Paulo time, the same day.
São Paulo is 3 hours behind, so your body clock has to run later. That is the easier direction: with no plan, expect about 2 days to feel properly adjusted.
For two or three days before, go to bed and get up an hour later each day, and get bright light in the evening. Even a partial shift helps.
Set your watch to São Paulo time as you board. On a typical morning departure you land around 19:24 São Paulo time, in the evening or at night: try to sleep on the flight, with an eye mask and earplugs, drink water, go easy on alcohol, and go to bed soon after you arrive.
Get outdoor light in the afternoon and evening, and stay up until local bedtime. Keep any nap under 30 minutes, early in the day.
General guidance, not medical advice. If you have a health condition or take medication, ask your doctor before changing your sleep routine.
Range decides what can do this route without a stop. At 9,460 km it is within reach of Boeing 787-9, Airbus A350-900 and Boeing 777-300ER.
| Aircraft | Approx. range | Estimated LHR–GRU |
|---|---|---|
| Airbus A320neo | 6,300 km | needs a stop |
| Boeing 737-800 | 5,400 km | needs a stop |
| Airbus A321LR | 7,400 km | needs a stop |
| Boeing 787-9 | 14,100 km | 11 h 25 min |
| Airbus A350-900 | 15,000 km | 11 h 25 min |
| Boeing 777-300ER | 13,650 km | 11 h 25 min |
Distance is the great-circle distance between London Heathrow and São Paulo Guarulhos. Time is that distance at about 830 km/h cruise, adjusted for the prevailing jet stream, plus roughly 35 minutes for taxi, climb and descent. It is a typical scheduled-time estimate, not a timetable: airlines publish their own, and daily winds, routing and air traffic can move a long flight by half an hour or more. Reviewed October 2026.
About 12 h 25 min from LHR to GRU. The return flight is about 11 h 40 min.
From London to São Paulo it is typically about 12 h 25 min, covering 9,460 km.
9,460 km (5,878 miles, 5,108 nautical miles) in a straight line.
The jet stream blows west to east, so the eastbound flight is shorter than the westbound one. The distance is identical.
São Paulo is 3 hours behind London in standard time.
At 9,460 km it is within the range of long-haul airliners such as the Boeing 777-300ER, so a non-stop flight is possible; check airline schedules for what is actually operated.
Typically about 2 days with no plan, and less if you shift your sleep and light exposure to local time.
Shift your sleep an hour later for two or three days before you fly, switch to destination time on boarding, stay awake until local bedtime on arrival, and get outdoor light in the afternoon and evening.
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