Hartsfield Jackson Atlanta International Airport
Atlanta, United StatesATL / KATL
International hub · 203 direct destinations · 5 runways · longest runway 12,388 ft
82 °F · Partly cloudySource: METAR observation via the NOAA Aviation Weather Center
Route
Atlanta → Houston
ATL
AtlantaHartsfield Jackson Atlanta International Airport
AtlantaHartsfield Jackson Atlanta International AirportIAHHoustonGeorge Bush Intercontinental Airport
HoustonGeorge Bush Intercontinental Airport- Distance
- 688 mi
- Estimated flight time
- ~1h 55m
Houston is currently 1 hour behind Atlanta.
Observed nonstop
How often does this route fly?
Frequency
Throughout the day
On average around 13.5 flights a day, observed from October 2025 to September 2026.
- 13.5
- flights per day
- 15
- busiest month · Oct
- 12
- quietest month · Jan
- 1 hr 43 min
- measured flight time
- 12 / 12
- months seen
Through the year
Per day, month by month
- 12Jan2026
- 12.5Feb
- 13Mar
- 14Apr
- 14May
- 14Jun
- 14Jul
- 13Aug
- 13Sep
- 15Oct2025
- 14Nov
- 13Dec
Airlines
Who flies it
Delta Air Linesall year
United Airlinesall year
Frontier Airlinesall year
Mesa Airlinesall year
Spirit Airlineswinter
Air Transport Internationalwinter
Silk Way West Airlinesnow and then
SkyWest Airlinesnow and then
Through the day
Departure times
Local time in Atlanta. Most departures between 14:00 and 17:00.
- 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
- 13Mon
- 12.5Tue
- 12.6Wed
- 13.7Thu
- 14.3Fri
- 12.4Sat
- 12.5Sun
Fleet
Aircraft observed
- Airbus A321A32136%
- Airbus A320A32020%
- Airbus A321neoA21N9%
- Airbus A319A3196%
- Embraer 175E75L4%
All the numbers in a table
| Month | Per day | Seen | Airlines |
|---|---|---|---|
| January 2026 | 12 | 326 |
|
| February 2026 | 12.5 | 324 |
|
| March 2026 | 13 | 372 |
|
| April 2026 | 14 | 397 |
|
| May 2026 | 14 | 407 |
|
| June 2026 | 14 | 395 |
|
| July 2026 | 14 | 422 |
|
| August 2026 | 13 | 404 |
|
| September 2026 | 13 | 390 |
|
| October 2025 | 15 | 470 |
|
| November 2025 | 14 | 406 |
|
| December 2025 | 13 | 367 |
|
Airlines observed on this route
From observed callsign routes on ATL-IAH - not a booking guarantee.
Air Transport International
8C · ATNHub: CVG Hebron
Delta Air Lines
DL · DALHub: ATL Atlanta
Frontier Airlines
F9 · FFTHub: DEN Denver
Mesa Airlines
YV · ASHHub: IAH Houston
Silk Way West Airlines
7L · AZGHub: HHN Hahn
SkyWest Airlines
OO · SKWHub: ORD Chicago
Spirit Airlines
NK · NKSHub: FLL Fort Lauderdale
United Airlines
UA · UALHub: ORD Chicago
About this route
- Domestic route: both airports are in the same country.
- The opposite direction has also been observed as a direct connection.
- Direct destinations observed from Atlanta: 203.
- Direct destinations observed from Houston: 159.
The airports on this route
George Bush Intercontinental Airport
Houston, United StatesIAH / KIAH
International hub · 159 direct destinations · 5 runways · longest runway 12,001 ft
74 °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 Atlanta to Houston
The observed direct connection between Hartsfield Jackson Atlanta International Airport (ATL) and George Bush Intercontinental Airport (IAH) covers approximately 688 mi. The estimated flight time is around 1h 55m. Air Transport International, Delta Air Lines, Frontier Airlines, Mesa Airlines, Silk Way West Airlines, SkyWest Airlines, Spirit Airlines and United Airlines have been observed on this connection in the available route data.
Frequently asked questions about this route
- How far is Atlanta from Houston by air?
- The great-circle distance between Hartsfield Jackson Atlanta International Airport and George Bush Intercontinental Airport is approximately 688 mi.
- How long is the flight from Atlanta to Houston?
- Based on the distance, the estimated flight time is about 1h 55m. This is an estimate, not a schedule.
- Is there a direct connection from Atlanta to Houston?
- Yes, a direct connection between ATL and IAH has been observed in our route data.
- Which airlines have been observed on this route?
- In the available route data: Air Transport International, Delta Air Lines, Frontier Airlines, Mesa Airlines, Silk Way West Airlines, SkyWest Airlines, Spirit Airlines and United Airlines.
- How often is there a flight from Atlanta to Houston?
- On average around 13.5 flights a day, measured over twelve months (October 2025 to September 2026) in the flight archive, with 4,680 observed flights. Mainly Delta Air Lines, United Airlines, Frontier Airlines. That is an observation, not a timetable.
- What is the current time difference between Atlanta and Houston?
- Houston is currently 1 hour behind Atlanta.
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.