Air Miles Calculator

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

Flight distance from Houston to London (Houston George Bush Intercontinental Airport – London Heathrow Airport) is 4834 miles / 7779 kilometers / 4201 nautical miles. Estimated flight time is 9 hours 39 minutes.

Map of flight path from Houston to London.

Shortest flight path between Houston George Bush Intercontinental Airport (IAH) and London Heathrow Airport (LHR).

How far is London from Houston?

There are several ways to calculate distances between Houston and London. Here are two common 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 – the shortest distance between two points).

Airport information


A Houston 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 London 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

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, TX

 CDT

London

 BST

Carbon dioxide emissions

Estimated CO2 emissions per passenger is 562 kg (1 240 pounds).

Frequent Flyer Miles Calculator

Houston (IAH) → London (LHR).

Distance:
4834
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
4834

Round trip?