Direct (nonstop) flights from Houston to London
2 airlines fly nonstop from George Bush Intcntl Houston (IAH) to Heathrow (LHR). It's 4,834 miles (7,780 km), about 9h in the air. Operated by British Airways, United Airlines.
British Airways
United Airlines
Route data last updated: May 29, 2026
Airlines with non-stop flights
Alternative Routes
Other ways to fly from Houston to London with one stop · direct emits 739 kg CO₂ per passenger
Looking for the return flight?
LHR → IAH: Flights from London to HoustonOther direct flights from Houston
Direct flights from London (LHR)
Frequently Asked Questions
How long is the direct flight from Houston to London?
A nonstop flight from Houston (IAH) to London (LHR) takes approximately 9 hours. The distance is 4,834 miles (7,780 km).
Which airlines fly nonstop from Houston to London?
2 airlines: British Airways, United Airlines.
Is there a nonstop flight from Houston to London?
Yes. 2 airlines: British Airways, United Airlines.
How far is Houston from London?
The flight distance from Houston to London is 4,834 miles (7,780 km), measured as the great-circle (shortest air) distance. That's roughly the same distance as New York to Rome.
What is the time difference between Houston and London?
London is 6 hours ahead of Houston. (America/Chicago vs Europe/London.)
Will I experience jet lag flying from Houston to London?
Probably — 6-hour time difference means moderate jet lag. Expect about 1 day of adjustment per hour of shift. Flying eastward is generally harder to adjust to.
What type of aircraft flies from Houston to London?
At 9h, this route typically uses wide-body aircraft — Boeing 777, 787, or Airbus A330/A350. Varies by airline.
Do I need a visa to travel from USA to United Kingdom?
Depends on your passport. Check with the United Kingdom embassy or an official visa portal before booking — requirements change.
What is the carbon footprint of a flight from Houston to London?
Roughly 739 kg CO2 per passenger one-way. That's about the same as driving 3,695 km.
Is the return flight from London to Houston also nonstop?
Yes — nonstop flights run both ways. Flight time may differ slightly due to wind patterns.
When is the cheapest time to fly from Houston to London?
Midweek flights (Tue/Wed) outside holiday peaks are usually cheapest. For long-haul, booking 2-3 months out tends to help. Use "Check Prices" above to compare.
How early should I arrive at George Bush Intcntl Houston for this flight?
3 hours before departure for international flights. You need time for check-in, security, and immigration.