George Bush Intercontinental to London Heathrow
4824 miles great-circle distance, typically flown in 10h 06m with 8 airlines operating direct service from George Bush Intercontinental (IAH) to London Heathrow (LHR). Cheapest fares are usually in January (around $449 return), with peak prices in August (around $1347). Departures on a Tuesday tend to undercut weekend prices on this corridor.
Flying from George Bush Intercontinental
Houston George Bush Intercontinental is United Airlines' second-largest hub after Newark, with five terminals and a Skytrain people mover connecting them. METRO's bus 102 runs from the airport to downtown Houston in around 50 minutes; light rail does not extend to IAH. International long-haul through Houston is heaviest to Latin America (over 30 destinations) and Europe, with Lufthansa, KLM, Air France and British Airways all operating daily and growing Middle East service via Qatar, Emirates and Turkish.
Arriving in London
London Heathrow is 24 km west of central London — the deepest transatlantic hub from anywhere on the US East Coast. The Elizabeth Line and Heathrow Express both reach Paddington (15 minutes Express, 30 minutes Elizabeth) for £25 and £13.30 respectively. US carriers (American, Delta, United, JetBlue) and BA dominate the corridor. Cheapest fares from US East Coast: late January and February; peak demand is June–August.
Who flies IAH to LHR?
| Airline | IATA | Flight time | Cabin |
| United Airlines | UA | 10h 06m | Economy |
| British Airways | BA | 10h 06m | Economy |
| Lufthansa | LH | 10h 06m | Economy |
| Air France | AF | 10h 06m | Economy |
| KLM | KL | 10h 06m | Economy |
| Qatar Airways | QR | 10h 06m | Economy |
| Emirates | EK | 10h 06m | Economy |
| Turkish Airlines | TK | 10h 06m | Economy |
8 carriers fly direct on this corridor. Frequencies vary by season — summer and winter holiday peaks see additional flights.
Best time to fly IAH→LHR
Synthesised from 12-month price aggregates. Cheapest months in green, peak in red.
Estimated baseline. Prices update on a 30-day cadence as Travelpayouts data refreshes. Cheapest day-of-week typically Tuesday.
Houston to London FAQs
Direct flights from George Bush Intercontinental (IAH) to London Heathrow (LHR) take approximately 10h 06m for the 4824-mile journey, plus 30–60 minutes of taxi, climb and descent. Total airport-to-airport time depends on cruise winds and air-traffic queueing on approach.
January is typically the cheapest month on this route, with one-way fares from $449. August is the peak — expect prices 2–3× higher. Book 4–8 weeks ahead for best fares; last-minute prices on this corridor rise sharply inside two weeks of departure.
8 carriers operate direct service from George Bush Intercontinental (IAH) to London Heathrow (LHR): United Airlines, British Airways, Lufthansa, Air France, KLM and 3 more. Frequencies vary by season and carrier — United Airlines typically operates the highest weekly count on this corridor.
Electronic Travel Authorisation (ETA) required for US passport holders from 2025 — apply online, £10. Always check travel.state.gov for the latest entry requirements before booking.
London Heathrow (LHR) is the primary international airport for London. Allow 30–60 minutes for the ground transfer by train, express bus, taxi or rideshare depending on traffic and time of day. See the airport's official website for current train and shuttle timetables.