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Route guide

London Miami

Heathrow (LHR) — Miami International (MIA)

Westbound
Distance
7,100 km
Duration
9.5h
TZ shift
5h west
Best side
right

Overview

London Heathrow to Miami — one of the busiest UK-US leisure corridors. Westbound daytime; the direction is forgiving and the duration is manageable.

Jet lag

5-hour westward delay. Daytime arrival into Miami — stay up until ~10pm local, get afternoon light, expect to feel close to normal by day 2.

Estimated recovery

Without intervention ~3 days
With timed light + melatonin ~2 days

Estimates only — based on ~1 day per time zone west, compressed roughly 40% with a timed protocol. See how long jet lag actually lasts .

Build a LHR→MIA adaptation schedule

Best window side

Westbound daytime — the right (north) side avoids direct sun through the long daylit cruise across the Atlantic.

Typical economy row (3-3-3)

Left

Middle

Best · Right

The right window is the calmer pick on this route. For sleep, the window itself matters more than the side — see how to sleep on a long-haul. For the exact rows and seat letters on this aircraft, use the seat picker.

Cabin atmosphere

BA's 787-9 and Virgin's A350-1000 are the comfort picks here. 777-300ER is workable but dries the cabin faster on a 9-10 hour daytime block.

Expected cabin humidity at cruise

This route's typical aircraft ~15-20%
Indoor air at home ~40-60%

Composite-fuselage aircraft (787, A350) run higher humidity than older aluminum-fuselage types. See what the 787 actually fixes.

What to pack for this route

Read before you fly

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