Houston (IAH) to London (LHR) flights

United Airlines, British Airways fly nonstop from George Bush Intercontinental Airport to London Heathrow Airport, with about 28 flights a week in July 2026. The 4,834-mile flight takes about 4h 58m gate to gate.

From
IAH
Houston
George Bush Intercontinental Airport
To
LHR
London
London Heathrow Airport
Distance
4,834 mi · 7,780 km
Flight time
4h 58m
Airlines
2
Seats filled
77%
Flights a week, July 2026
1,344 flights and 265,766 passengers in 12 months
LHRLHRIAH
Map data: Natural Earth. Lines follow the shortest (great-circle) path.

Airlines flying IAH to LHR

AirlineFlights a weekAircraftPassengers (12 months)Flight time
United Airlines14Boeing 777-200ER/200LR/233LR, Boeing 777-300/300ER/333ER148,0609h 12m
British Airways14Boeing 777-300/300ER/333ER, Boeing 787-9 Dreamliner, Boeing 787-10 Dreamliner117,7060m

Airlines are the operating carrier: regional airlines such as SkyWest or Horizon often fly under a larger airline's brand.

Flights by month

MonthFlightsFlights, relativePassengers
August 2025112
22,115
September 2025115
22,099
October 2025119
20,660
November 2025106
19,024
December 2025110
22,864
January 2026104
17,360
February 202696
13,860
March 2026108
22,884
April 2026111
22,629
May 2026122
28,390
June 2026119
28,602
July 2026122
25,279

Related

Source: US Department of Transportation, T-100 Segment data, August 2025 to July 2026.