Great-circle route ORD → IAH. Faint dots are other airports, for geographic context. Download this map — free to reuse with a link back to this page.
The flight time from Chicago to Houston is approximately 2h 25m nonstop. The distance is 926 miles (1,490 km). There are about 24 nonstop flights from Chicago to Houston per day.
That is a great-circle estimate, not a scheduled block time. An airline's published time will differ by roughly 15 to 45 minutes depending on routing, winds and taxi.
| Route | Est. time | Distance | Frequency | Airlines |
|---|---|---|---|---|
| ORD → IAH Chicago O'Hare International Airport to George Bush Intercontinental Houston Airport |
2h 25m | 926 mi | 125/wk | American Airlines, Frontier Airlines, United Airlines |
| MDW → HOU Chicago Midway International Airport to William P Hobby Airport |
2h 27m | 938 mi | 46/wk | Southwest Airlines |
Frequencies come from our most recent schedule sample. Where a pairing shows “—” we track it as an operating nonstop but hold no schedule sample for it — we would rather show nothing than guess.
4 airlines fly nonstop from Chicago to Houston, including American Airlines, Frontier Airlines, Southwest Airlines, United Airlines.
Recent scheduled departures on this route have used the Boeing 737-900, Airbus A320, Airbus A319, Boeing 737 and 2 other types.
Aircraft assignments change by season and by time of day.
The distance from Chicago to Houston is 926 miles, or 1,490 kilometres.
| Great-circle distance | 926 mi |
| Kilometres | 1,490 km |
| Nautical miles | 805 nmi |
Measured airport to airport. The actual track is longer — aircraft follow airways, avoid restricted airspace and route around weather.
Yes. 4 airlines fly it nonstop, with about 171 departures a week, across 2 airport pairings. The route is in our live nonstop dataset, last seeded 2026-07-07.
About 2h 25m in the air on the ORD–IAH nonstop. That is a great-circle estimate from the 926-mile distance, not a scheduled block time — an airline's published time will differ by roughly 15 to 45 minutes depending on routing, winds and taxi.
926 miles (1,490 km) great-circle between Chicago O'Hare International Airport and George Bush Intercontinental Houston Airport.
American Airlines, Frontier Airlines, Southwest Airlines, United Airlines.
Recent scheduled departures have used the Boeing 737-900, Airbus A320, Airbus A319, Boeing 737. Assignments change by season and by time of day.
ORD to IAH, MDW to HOU. Flight times differ slightly between them because the airports are not in the same place.
