Air Miles Calculator

Distance between Houston, TX (IAH) and London (LHR)

Distance from George Bush Intercontinental Airport to Heathrow Airport is 4834 miles / 7779 kilometers / 4201 nautical miles.

Calculations with different methods

Vincenty's formula (applied above)
  • 4833.949 miles
  • 7779.487 kilometers
  • 4200.587 nautical miles

Vincenty's formula calculates the distance between latitude/longitude points on the earth’s surface, using an ellipsoidal model of the earth.

Haversine formula
  • 4823.699 miles
  • 7762.991 kilometers
  • 4191.680 nautical miles

The haversine formula calculates the distance between latitude/longitude points assuming a spherical earth (great-circle distance).

Flight duration

Estimated flight time from George Bush Intercontinental Airport (IAH) to Heathrow Airport (LHR) is 9 hours 39 minutes.

Time difference and current local times

The time difference between Houston and London is 6 hours. London is 6 hours ahead of Houston.

Time Difference

Houston
London

Houston, TX

 CST

London

 GMT

Airport information


A George Bush Intercontinental Airport
City: Houston, TX
Country: United States Flag of United States
IATA Code: IAH
ICAO Code: KIAH
Coordinates: 29°59′3″N, 95°20′29″W

B Heathrow Airport
City: London
Country: United Kingdom Flag of United Kingdom
IATA Code: LHR
ICAO Code: EGLL
Coordinates: 51°28′14″N, 0°27′42″W

Map

Flight map from Houston to London.

Frequent Flyer Miles Calculator

Houston (IAH) → London (LHR).

Elite level bonus (%):
Booking class bonus (%):
Air miles:
4834
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
4834

Round trip?