ORD to LHR Route Guide
Chicago, United States → London, United Kingdom
Quick answer
KORD (Chicago, United States) to EGLL (London, United Kingdom) is a 3,425 NM (6,343 km / 3,941 mi) great-circle route with an initial bearing of 48° (NE). Typical cruise altitude FL380, expected flight time 7h 42m, common aircraft: Boeing 757-200, Boeing 737 MAX 8, Airbus A321XLR.
Distance
3,425 NM
6,343 km / 3,941 mi
Initial Bearing
48° (NE)
True heading at departure
Typical Cruise
FL380
38,000 ft
Block Time
7h 42m
Typical jet, no wind correction
Fuel Estimate
11,775 kg
Single-aisle equivalent + reserve
Departure Elevation
672 ft
KORD
Arrival Elevation
83 ft
EGLL
What aircraft fly this route?
For a 3,425 NM mission, operators typically deploy:
- Boeing 757-200
- Boeing 737 MAX 8
- Airbus A321XLR
- Airbus A330-300
Weather considerations
Pilots flying ORD-LHR should brief METARs and TAFs at both ends, plus any en-route SIGMETs. On this long-range mission, plan for an alternate within fuel reserves and review oceanic / NAT track procedures if applicable.
Frequently asked questions
What is the distance between ORD and LHR?
3,425 nautical miles (6,343 km / 3,941 statute miles) great-circle.
How long is the flight from Chicago to London?
Approximately 7h 42m block-to-block for a typical commercial jet, depending on aircraft type and winds.
What aircraft typically fly ORD-LHR?
Common types include Boeing 757-200, Boeing 737 MAX 8, Airbus A321XLR, Airbus A330-300 depending on operator and demand.
What altitude do flights cruise at?
Most flights at this distance cruise around FL380 (38,000 ft), though winds and traffic affect filed altitude.
What initial heading is the route?
48° true (NE). Track varies along the route due to great-circle curvature.
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