Distance From West Houston Airport to London Heathrow Airport, IWS - LHR Distance

The distance from West Houston Airport (IWS) to London Heathrow Airport (LHR) is 4846 miles or 7798 kilometers or 4208 nautical miles.

The distance shown below is direct flight distance between airports. Straight-line distance does not account for the surface between the two points. It is the distance a bird or airplane would travel between the two points when flying above the surface. The straight line distance is the direct route between two points, regardless of whether or not there are roads that connect them.

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How long does it take to travel from Houston ( United States ) to London ( United Kingdom )?

A one-way nonstop (direct) flight between Houston and London takes around 11 hours 8 minutes.

Estimated flight time from West Houston Airport, Houston, United States to London Heathrow Airport, London, United Kingdom is 11 hours 8 minutes under avarage conditions. Your actual flying time may vary depending on wind direction/speed or weather conditions. This calculation does not include the departure and landing times of the aircraft. In addition, it does not cover the person identity check, ticket check-in and baggage collection times at the airport.

Travel Distance Between the Airports • IWS - LHR

Kilometers		7798 km
Statute Miles		4846 miles
Nautical Miles		4208 nm
Avg. Time of Flight		11 hours 8 minutes

West Houston Airport to London Heathrow Airport Flight Route Map - IWS to LHR Flight Path

Location of West Houston Airport & London Heathrow Airport is given below.
Click the map to view Houston to London nonstop flight path and travel direction.

Click to see flight route on Google Map between Houston, United States and London, United Kingdom. .

Nonstop flight route between Houston, United States and London, United Kingdom.

Time Difference Between the Airports • IWS - LHR

Time difference between Houston (United States) and London (United Kingdom) is 5 Hours.
London time is 5 Hours ahead of Houston.

Location	Local Time
Houston (United States)	2026-03-19, 23:13:27 CDT
London (United Kingdom)	2026-03-20, 04:13:27 GMT

Why should you arrive 3 hours before international flight? Flyers who are traveling to an international destination should arrive at the airport earlier than domestic flyers. This is because international flights can have additional check-in requirements, like passport verification, that need to be completed before you receive your boarding pass.

Origin

West Houston Airport (IWS / KIWS) Houston, United States

Destination

London Heathrow Airport (LHR / EGLL) London, United Kingdom