Chicago to London Flights
Flights from Chicago (CHI) to London (LON) connect United States and United Kingdom. The great-circle distance is approximately 6,345 km, and a typical direct flight takes about 9 hours. Airports commonly used for this city pair include CHI, ORD, MDW and LON, LHR, LGW, STN, LTN, LCY. The reverse route is London to Chicago. Use the search tool below to compare live prices and schedules — do not treat any static text on this page as a live fare.
Route facts
- Origin
- Chicago, United States
- Destination
- London, United Kingdom
- Distance
- 6,345 km
- Typical duration
- about 9 hours
- Origin codes
- CHI, ORD, MDW
- Destination codes
- LON, LHR, LGW, STN, LTN, LCY
- Primary keyword
- flights from Chicago to London
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Compare live prices and schedules for this route.
Route overview
Chicago to London is a city-pair air route between United States and United Kingdom. Travelers use this corridor for leisure, business, and connecting itineraries.
Primary search codes are CHI and LON. Related codes: CHI, ORD, MDW → LON, LHR, LGW, STN, LTN, LCY.
Distance
Approximate flight distance: 6,345 km (great-circle). Actual flown distance can be longer depending on airway routing.
Duration
Typical block time for a direct flight is about 9 hours. Connecting itineraries take longer and depend on layover airports.
Airports
Chicago airports and metro codes: CHI, ORD, MDW.
London airports and metro codes: LON, LHR, LGW, STN, LTN, LCY.
Alternative routes
Related searches include the reverse route London to Chicago, other destinations from Chicago, and other origins into London.
Frequently asked questions
How long is the flight from Chicago to London?
Direct flights from Chicago to London typically take about 9 hours, depending on aircraft type, routing, and wind conditions. Connecting itineraries take longer.
What is the distance from Chicago to London?
The great-circle distance between Chicago and London is approximately 6,345 km. Flown distance can be longer depending on airways.
Which airports serve flights from Chicago to London?
Chicago is commonly searched with code CHI (related: CHI, ORD, MDW). London is commonly searched with code LON (related: LON, LHR, LGW, STN, LTN, LCY).
Are there direct flights from Chicago to London?
Direct service availability varies by season and airline. Compare live schedules on Cheap Flights Worldwide for current nonstop and connecting options on this route.
What is the reverse flight route from London to Chicago?
The reverse city pair is London to Chicago. Distance is the same great-circle measure (6,345 km); block time can differ with winds and schedules.
Which countries does the Chicago to London route connect?
This route connects United States (Chicago) with United Kingdom (London).