London (LHR) to Chicago (ORD)
Flight time
≈ 8h 41m
Bearing
298° NW
London (LHR) to Chicago (ORD) is 3,942 miles (6,344 km) as the crow flies — the great-circle baseline most distance-based mileage programs credit.
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What actually flies LHR–ORD
Filed traffic dataIn May 2026, American Airlines operated the most departures, one of 3 carriers flying nonstop LHR–ORD; the Boeing 787-9 was the most common aircraft at 35% of departures; flights ran 84% full.
Departures
555
May 2026
Seats
122,776
both directions
Passengers
102,910
both directions
Load factor
83.8%
RPM ÷ ASM
Who flies LHR–ORD?
American Airlines operated the most nonstop LHR–ORD departures in May 2026 (189), one of 3 carriers on the route.
- AA
189 departures · 46,283 seats
Share of departures34.1%83.4%
Load
- BA
British Airways
185 departures · 46,086 seats
Share of departures33.3%87.6%
Load
- UA
181 departures · 30,407 seats
Share of departures32.6%78.8%
Load
What plane flies LHR–ORD?
In May 2026, the Boeing 787-9 flew 35% of LHR–ORD departures — more than any other aircraft type.
- Boeing 787-9
196 departures · 83.8% load
35.3% - Boeing 767-300
181 departures · 78.8% load
32.6% - Boeing 787-10
99 departures · 87.3% load
17.8% - Boeing 777-200
73 departures · 87.9% load
13.2% - Boeing 777-300ER
5 departures · 77.5% load
0.9% - Airbus A350-1000
1 departures · 90.3% load
0.2%
How has LHR–ORD traffic changed?
Nonstop LHR–ORD departures rose from 509 in June 2025 to 555 in May 2026.
Monthly nonstop LHR–ORD traffic, trailing 12 months through May 2026. Bars scale to the busiest month; months with no filed service show as zero.
June 2025
509 departures · 106,543 passengers
91.7%
Load
July 2025
539 departures · 107,933 passengers
90.7%
Load
August 2025
550 departures · 107,533 passengers
86.4%
Load
September 2025
538 departures · 106,214 passengers
84.6%
Load
October 2025
505 departures · 97,635 passengers
89.0%
Load
November 2025
390 departures · 65,897 passengers
80.8%
Load
December 2025
429 departures · 75,757 passengers
84.1%
Load
January 2026
410 departures · 64,299 passengers
74.2%
Load
February 2026
367 departures · 52,211 passengers
67.6%
Load
March 2026
433 departures · 75,904 passengers
82.3%
Load
April 2026
509 departures · 85,013 passengers
76.4%
Load
May 2026
555 departures · 102,910 passengers
83.8%
Load
By direction
Each direction is filed separately — they rarely match.
LHR → ORD
79.7% full
278 departures · 49,080 passengers
ORD → LHR
88.0% full
277 departures · 53,830 passengers
Nonstop LHR–ORD traffic has been filed since 2025.
Source: US DOT BTS Form 41 T-100 Segment (All Carriers). Data through May 2026; filings from 2025. Public domain (US Government work).
The airports
London
GB
London Heathrow Airport
Coordinates
51.47°N, 0.46°W
Hemisphere
N · W
Frequently asked
How far is London (LHR) from Chicago (ORD)?
LHR to ORD is 3,942 miles (6,344 km / 3,425 nautical miles) measured great-circle — the shortest path over the surface of the Earth.
How long is the flight from LHR to ORD?
A nonstop covers the 3,942-mile great-circle distance in roughly 8h 41m of block time, before winds. Actual schedules vary a few percent by direction and aircraft.
What plane flies LHR–ORD?
In May 2026, the Boeing 787-9 flew the largest share of departures (35.3%), followed by the Boeing 767-300 (32.6%).
What mileage do I earn flying LHR–ORD?
Distance-based programs credit off the 3,942-mile great-circle figure, then apply your fare-class earning rate. Revenue-based programs credit off the fare instead.
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