The U.S. aircraft register, updated daily
Routes and flights · the DOT's airline reports, August 2025 to July 2026

London ⇄ Chicago O'Hare International LHR–ORD

Airlines flew 5,748 flights between London, United Kingdom LHR in London, GB and Chicago O'Hare International ORD in Chicago, IL in the twelve months to July 2026, both directions together: 1,036,729 passengers in 1,251,939 seats, 83% of them filled, and 113,421,441 pounds of freight. 3,953 miles, about 336 minutes in the air, on 3 airlines: United Air Lines Inc. (2,151), American Airlines Inc. (1,850), British Airways Plc (1,747).

5,748
flights, twelve months
LHR-ORD: 2,878 · ORD-LHR: 2,870
1,036,729
passengers
83% of seats filled
3,953
miles
about 336 minutes airborne
3
airlines
9 aircraft types

Flights by month both directions

01392784175561/254/257/2510/251/264/265257/26
By month, as a table
flights
1/25353
2/25313
3/25362
4/25534
5/25556
6/25509
7/25539
8/25551
9/25538
10/25505
11/25392
12/25430
1/26410
2/26367
3/26433
4/26509
5/26555
6/26533
7/26525

Passengers by month

027,94855,89683,843111,7911/254/257/2510/251/264/2699,3747/26
By month, as a table
passengers
1/2560,288
2/2544,241
3/2567,771
4/2589,840
5/25111,791
6/25106,543
7/25107,933
8/25107,533
9/25106,214
10/2597,635
11/2565,897
12/2575,757
1/2664,299
2/2652,211
3/2675,904
4/2685,013
5/26102,910
6/26103,982
7/2699,374

The airlines twelve months, both directions

AirlineFlightsPassengersSeats filledService
United Air Lines Inc. UA2,151279,27676%charter cargo service, scheduled passenger service
American Airlines Inc. AA1,850386,32286%scheduled passenger service
British Airways Plc BA1,747371,13186%scheduled passenger service

The aircraft as the airlines report their types

AircraftFlightsSeats a flightPassengers
Boeing 767-300/300ER2,074167265,225
B787-900 Dreamliner1,923243400,183
Boeing 787-10 Dreamliner840261181,559
Boeing 777-200ER/200LR/233LR746239154,610
Boeing 777-300/300ER/333ER13025628,752
B787-800 Dreamliner292175,041
Boeing 747-4004332908
Boeing 767-400/ER1231152
Airbus 350-10001331299

LHR → ORD this direction alone · flown January 2025 to July 2026

2,878 flights of 2,046 scheduled, 513,235 passengers in 626,356 seats, 62,163,713 pounds of freight, 1,198,344 pounds of mail. United Air Lines Inc. 1,077; American Airlines Inc. 925; British Airways Plc 876.

ORD → LHR this direction alone · flown January 2025 to July 2026

2,870 flights of 2,028 scheduled, 523,494 passengers in 625,583 seats, 51,257,728 pounds of freight, 1,618,355 pounds of mail. United Air Lines Inc. 1,074; American Airlines Inc. 925; British Airways Plc 871.

Source: the Bureau of Transportation Statistics' T-100 Segment table (all carriers). A flight is one departure performed on this segment; seats and passengers are the airlines' own monthly reports; "seats filled" is passengers divided by seats. The miles are the DOT's great-circle distance. Both ends: London, United Kingdom LHR and Chicago O'Hare International ORD; all routes.