London to Chicago Flight Time — LHR to ORD

Q: How far is London from Chicago?

The great-circle distance from London to Chicago is approximately 6,343 km (3,942 miles).

Flight Duration

8h 42m

non-stop estimate

Distance

6,343 km

3,942 miles

Time Difference

−5 to −6h

UTC+0/+1 → UTC−6/−5

[ LHR → ORD — Route Info ]

A non-stop flight from London, United Kingdom (LHR) to Chicago, United States (ORD) would cover approximately 6,343 km (3,942 miles) along the great-circle route, with an estimated flight duration of 8 hours and 42 minutes.

Estimate, not a schedule. This is a computed non-stop flying time. Check whether a non-stop service exists for your dates; if you connect, add the flying time of each leg plus the time on the ground at the hub.

Chicago is 5–6 hours behind London, depending on daylight saving. Set your watch back on arrival.

These estimates assume a typical commercial cruising speed of 880 km/h and include standard time for taxi, climb and descent. Actual scheduled times can differ by an hour or more on long routes, depending on airline, routing, aircraft and winds.

→ Calculate exact arrival time for your departure

Common Questions

How long is the flight from London to Chicago?

A non-stop flight from London (LHR) to Chicago (ORD) would take approximately 8 hours and 42 minutes. This estimate includes standard taxi, climb and descent time and covers 6,343 km (3,942 miles).

What is the time difference between London and Chicago?

London uses UTC+0, or UTC+1 during daylight saving; Chicago uses UTC−6, or UTC−5 during daylight saving. Chicago is 5–6 hours behind London, depending on daylight saving. Set your watch back on arrival.

How far is London from Chicago?

The great-circle distance — the shortest path along Earth's surface — from London to Chicago is approximately 6,343 km (3,942 miles). This is the actual distance your aircraft travels through the air.

London to Chicago — Flight Time

Travelling London to Chicago