George Bush Intercontinental Airport
Houston, United StatesIAH / KIAH
International hub · 159 direct destinations · 5 runways · longest runway 12,001 ft
72 °F · CloudySource: METAR observation via the NOAA Aviation Weather Center
Route
Houston → Liège
IAH
HoustonGeorge Bush Intercontinental Airport
HoustonGeorge Bush Intercontinental AirportLGG
LiègeLiège Airport
LiègeLiège Airport- Distance
- 5,080 mi
- Estimated flight time
- ~10h 45m
Liège is currently 7 hours ahead of Houston.
Observed nonstop
How often does this route fly?
Frequency
Daily at most
On average around 1 flights a day, observed from October 2025 to September 2026.
- 1
- flights per day
- 1
- busiest month · Oct
- 8 hr 46 min
- measured flight time
- 9 / 12
- months seen
Through the year
Per day, month by month
- –Jan2026
- –Feb
- 1Mar
- 1Apr
- 1May
- 1Jun
- 1Jul
- 1Aug
- 1Sep
- 1Oct2025
- –Nov
- 1Dec
Airlines
Who flies it
Qatar Airwaysspring
Challenge Airlines (BE)spring
Atlas Airnow and then
Ethiopian Airlinesnow and then
Through the day
Departure times
Local time in Houston. Most departures between 02:00 and 05:00.
- 00:00
- 01:00
- 02:00
- 03:00
- 04:00
- 05:00
- 06:00
- 07:00
- 08:00
- 09:00
- 10:00
- 11:00
- 12:00
- 13:00
- 14:00
- 15:00
- 16:00
- 17:00
- 18:00
- 19:00
- 20:00
- 21:00
- 22:00
- 23:00
Through the week
By weekday
- 0.7Mon
- 0.3Tue
- 0.5Wed
- 0.4Thu
- 0.5Fri
- 0.4Sat
- 0.1Sun
Fleet
Aircraft observed
- Boeing 777-200LRB77L84%
- Boeing 747-400B74414%
- Boeing 747-8B7482%
All the numbers in a table
| Month | Per day | Seen | Airlines |
|---|---|---|---|
| January 2026 | Not seen in this month. | ||
| February 2026 | Not seen in this month. | ||
| March 2026 | 1 | 9 |
|
| April 2026 | 1 | 20 |
|
| May 2026 | 1 | 11 |
|
| June 2026 | 1 | 20 |
|
| July 2026 | 1 | 22 |
|
| August 2026 | 1 | 31 |
|
| September 2026 | 1 | 30 |
|
| October 2025 | 1 | 3 |
|
| November 2025 | Not seen in this month. | ||
| December 2025 | 1 | 5 |
|
Airlines observed on this route
From observed callsign routes on IAH-LGG - not a booking guarantee.
About this route
- Intercontinental: this route connects two continents.
- The opposite direction has also been observed as a direct connection.
- Direct destinations observed from Houston: 159.
- Direct destinations observed from Liège: 66.
The airports on this route
Liège Airport
Liège, BelgiumLGG / EBLG
Regional airport · 66 direct destinations · 2 runways · longest runway 12,106 ft
63 °F · CloudySource: METAR observation via the NOAA Aviation Weather Center
Alternative airports for this journey
Same journey, a different airport nearby - with an observed direct connection.
About the route from Houston to Liège
The observed direct connection between George Bush Intercontinental Airport (IAH) and Liège Airport (LGG) covers approximately 5,080 mi. The estimated flight time is around 10h 45m. Atlas Air, Challenge Airlines (BE), Ethiopian Airlines and Qatar Airways have been observed on this connection in the available route data.
Frequently asked questions about this route
- How far is Houston from Liège by air?
- The great-circle distance between George Bush Intercontinental Airport and Liège Airport is approximately 5,080 mi.
- How long is the flight from Houston to Liège?
- Based on the distance, the estimated flight time is about 10h 45m. This is an estimate, not a schedule.
- Is there a direct connection from Houston to Liège?
- Yes, a direct connection between IAH and LGG has been observed in our route data.
- Which airlines have been observed on this route?
- In the available route data: Atlas Air, Challenge Airlines (BE), Ethiopian Airlines and Qatar Airways.
- How often is there a flight from Houston to Liège?
- On average around 1 flights a day, measured over twelve months (October 2025 to September 2026) in the flight archive, with 151 observed flights. Mainly Qatar Airways, Challenge Airlines (BE), Atlas Air. That is an observation, not a timetable.
- What is the current time difference between Houston and Liège?
- Liège is currently 7 hours ahead of Houston.
Where this data comes from
The route data comes from the flight archive (ADS-B, adsb.lol): which connections actually flew over the last twelve full months and who flew them, combined with our own airport, runway, and airline datasets. It is reference data about observed routes - not a current timetable and no claim about bookability.
The frequency and aircraft on this page come from the flight archive (ADS-B, 12 months, October 2025 to September 2026), summarized per route per month. We do not see every flight, so it is a floor, not a count.
Route data updated on October 11, 2026.