Chicago O'Hare International Airport
Chicago, United StatesORD / KORD
International hub · 259 direct destinations · 8 runways · longest runway 12,999 ft
54 °F · CloudySource: METAR observation via the NOAA Aviation Weather Center
Route
Chicago → Houston
ORD
ChicagoChicago O'Hare International Airport
ChicagoChicago O'Hare International AirportIAHHoustonGeorge Bush Intercontinental Airport
HoustonGeorge Bush Intercontinental Airport- Distance
- 926 mi
- Estimated flight time
- ~2h 20m
Same local time in Chicago and Houston.
Observed nonstop
How often does this route fly?
Frequency
Throughout the day
On average around 17 flights a day, observed from October 2025 to September 2026.
- 17
- flights per day
- 18
- busiest month · May
- 14
- quietest month · Dec
- 2 hr 10 min
- measured flight time
- 12 / 12
- months seen
Through the year
Per day, month by month
- 14Jan2026
- 15.5Feb
- 15Mar
- 17Apr
- 18May
- 17Jun
- 18Jul
- 18Aug
- 18Sep
- 17Oct2025
- 15Nov
- 14Dec
Airlines
Who flies it
United Airlinesall year
American Airlinesall year
Republic Airwaysall year
Envoy Airwinter
Frontier Airlinesall year
Spirit Airlineswinter
Qatar Airwaysspring
Turkish Airlinessummer
Silk Way West Airlinesnow and then
Through the day
Departure times
Local time in Chicago. Most departures between 13:00 and 16:00.
- 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
- 15.1Mon
- 14.6Tue
- 14.7Wed
- 15.4Thu
- 17.3Fri
- 16.2Sat
- 15.2Sun
Fleet
Aircraft observed
- Airbus A321neoA21N37%
- Boeing 737-900B73914%
- Boeing 737 MAX 9B39M14%
- Embraer 175E75L7%
- Boeing 737-800B7387%
All the numbers in a table
| Month | Per day | Seen | Airlines |
|---|---|---|---|
| January 2026 | 14 | 354 |
|
| February 2026 | 15.5 | 373 |
|
| March 2026 | 15 | 433 |
|
| April 2026 | 17 | 466 |
|
| May 2026 | 18 | 504 |
|
| June 2026 | 17 | 501 |
|
| July 2026 | 18 | 549 |
|
| August 2026 | 18 | 529 |
|
| September 2026 | 18 | 549 |
|
| October 2025 | 17 | 517 |
|
| November 2025 | 15 | 406 |
|
| December 2025 | 14 | 399 |
|
Airlines observed on this route
From observed callsign routes on ORD-IAH - not a booking guarantee.
American Airlines
AA · AALHub: DFW Dallas-Fort Worth
Envoy Air
MQ · ENYHub: DFW Dallas-Fort Worth
Frontier Airlines
F9 · FFTHub: DEN Denver
Qatar Airways
QR · QTRHub: DOH Doha
Republic Airways
YX · RPAHub: ORD Chicago
Silk Way West Airlines
7L · AZGHub: HHN Hahn
Spirit Airlines
NK · NKSHub: FLL Fort Lauderdale
Turkish Airlines
TK · THYHub: IST Istanbul
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 Chicago: 259.
- 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.
MDW IAHChicago Midway International AirportChicago is about 16 mi from Chicago.View route →ORD HOUWilliam P. Hobby AirportHouston is about 24 mi from Houston.View route →RFD IAHChicago Rockford International AirportChicago is about 63 mi from Chicago.View route →MKE IAHGeneral Mitchell International AirportMilwaukee is about 67 mi from Chicago.View route →
About the route from Chicago to Houston
The observed direct connection between Chicago O'Hare International Airport (ORD) and George Bush Intercontinental Airport (IAH) covers approximately 926 mi. The estimated flight time is around 2h 20m. American Airlines, Envoy Air, Frontier Airlines, Qatar Airways, Republic Airways, Silk Way West Airlines, Spirit Airlines, Turkish Airlines and United Airlines have been observed on this connection in the available route data.
Frequently asked questions about this route
- How far is Chicago from Houston by air?
- The great-circle distance between Chicago O'Hare International Airport and George Bush Intercontinental Airport is approximately 926 mi.
- How long is the flight from Chicago to Houston?
- Based on the distance, the estimated flight time is about 2h 20m. This is an estimate, not a schedule.
- Is there a direct connection from Chicago to Houston?
- Yes, a direct connection between ORD and IAH has been observed in our route data.
- Which airlines have been observed on this route?
- In the available route data: American Airlines, Envoy Air, Frontier Airlines, Qatar Airways, Republic Airways, Silk Way West Airlines, Spirit Airlines, Turkish Airlines and United Airlines.
- How often is there a flight from Chicago to Houston?
- On average around 17 flights a day, measured over twelve months (October 2025 to September 2026) in the flight archive, with 5,580 observed flights. Mainly United Airlines, American Airlines, Republic Airways. That is an observation, not a timetable.
- What is the current time difference between Chicago and Houston?
- Same local time in Chicago and 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.