✈ ORD → LHR
8H 18M FLIGHT. TWO MOVIES, NO SLEEP, ONE EXISTENTIAL CRISIS.
Flight from Chicago to London
From O'Hare (ORD), USA North America → Heathrow (LHR), United Kingdom Europe
↔ Flying the other way? London → Chicago
How long is the flight from Chicago to London?
A nonstop flight from Chicago (ORD) to London (LHR) takes about 8 hours 18 minutes, covering a great-circle distance of 3,943 miles (6,345 km). Actual scheduled time varies by airline, routing, and wind — expect ±15 to 30 minutes from this estimate.
Avg flight time
8h 18m
Nonstop, scheduled
Distance
3,943 mi
6,345 km · great-circle
Avg speed
764 km/h
Door-to-door including taxi
Time zones & jet lag
Chicago timezone
UTC-5
America/Chicago
London timezone
UTC+1
Europe/London
Time difference
+6h
6 hours ahead
Jet lag (rough)
~6d
Eastward — worse
CO₂ footprint per passenger
Economy class, single passenger. Source: DEFRA 2024 averages.
This flight emits roughly 3.6× the CO₂ of an equivalent train trip and 0.9× a car driven alone over the same distance.
Flights from Chicago
Nearest destinations
- Chicago → Toronto
- Chicago → Atlanta
- Chicago → New York
- Chicago → Dallas
- Chicago → Boston
- Chicago → Miami
- Chicago → Cancun
- Chicago → Las Vegas
- Chicago → Mexico City
- Chicago → Seattle
Long-haul from Chicago
- Chicago → Bali (Denpasar)
- Chicago → Melbourne
- Chicago → Singapore
- Chicago → Kuala Lumpur
- Chicago → Sydney
- Chicago → Johannesburg
- Chicago → Bangkok
- Chicago → Cape Town
- Chicago → Auckland
- Chicago → Manila
More flights to Europe
Flights to London
Nearest origins
- Manchester → London
- Paris → London
- Brussels → London
- Amsterdam → London
- Dublin → London
- Edinburgh → London
- Frankfurt → London
- Zurich → London
- Milan → London
- Munich → London
Long-haul to London
- Auckland → London
- Sydney → London
- Melbourne → London
- Bali (Denpasar) → London
- Santiago → London
- Buenos Aires → London
- Singapore → London
- Manila → London
- Kuala Lumpur → London
- Taipei → London