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London Heathrow Airport LHR · EGLL
to
St Louis Lambert International Airport STL · KSTL

LHR to STL — nonstop flight time & airlines

London to St. Louis · both directions on this page
Open LHR in the interactive map →
The nonstop flight between London (LHR) and St. Louis (STL) takes approximately 8h 36m, covering 4,189 miles (6,742 km) great-circle. British Airways is the only airline flying it nonstop.
LHRLondon STLSt. Louis 4,189 mi · 8h 36m estimated onlynonstop.com

Great-circle route LHR ↔ STL. Faint dots are other airports, for geographic context. Download this map — free to reuse with a link back to this page.

Estimated flight time
8h 36m
Distance
4,189 mi
Nonstop airlines
1
Flights per week
4
Long haul International Schedule-verified ~0.6 flights a day

Both directions

Frequencies below are per direction, from our most recent schedule sample.

DirectionFrequencyDaysAirlines
LHR → STL
London to St. Louis
4/wk Mon Wed Thu Sat British Airways
STL → LHR
St. Louis to London
British Airways

Where a direction shows “—” we track it as an operating nonstop but hold no schedule sample for it — we would rather show nothing than guess.

What airlines fly between LHR and STL?

British Airways is the only airline flying the LHR–STL nonstop.

British Airways

What aircraft flies LHR to STL?

Recent scheduled departures on this route have used the Boeing 787-8.

Boeing 787-8

Aircraft assignments change by season and by time of day.

Why is the return flight a different length?

On a long east–west route like this one the two directions do not take the same time. Aircraft flying eastbound ride the mid-latitude jet stream and typically arrive earlier than the westbound leg, which flies into it. The difference is commonly 30 to 90 minutes on transatlantic and transpacific flights, and it varies by season. The estimate above does not model wind — treat it as a midpoint and check the airline's own timetable for the block time on your date.

How far is LHR from STL?

The distance between London Heathrow Airport and St Louis Lambert International Airport is 4,189 miles, or 6,742 kilometres.

Great-circle distance4,189 mi
Kilometres6,742 km
Nautical miles3,640 nmi

Measured airport to airport. The actual track is longer — aircraft follow airways, avoid restricted airspace and route around weather.

Common questions

Is there a nonstop flight between London (LHR) and St. Louis (STL)?

Yes. British Airways flies the route nonstop, with about 4 departures a week across both directions. The route is in our live nonstop dataset, last seeded 2026-07-07.

How long is the flight from LHR to STL?

About 8h 36m in the air. That is a great-circle estimate from the 4,189-mile distance, not a scheduled block time — an airline's published time will differ by roughly 15 to 45 minutes depending on routing, winds and taxi.

Which airlines fly nonstop between LHR and STL?

British Airways.

What aircraft flies the LHR–STL route?

Recent scheduled departures have used the Boeing 787-8. Assignments change by season and by time of day.

Related

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