Great-circle route IAH → ORD. 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 Houston to Chicago is approximately 2h 25m nonstop. The distance is 926 miles (1,490 km). There are about 24 nonstop flights from Houston to Chicago 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 |
|---|---|---|---|---|
| IAH → ORD George Bush Intercontinental Houston Airport to Chicago O'Hare International Airport |
2h 25m | 926 mi | 125/wk | American Airlines, Frontier Airlines, United Airlines |
| HOU → MDW William P Hobby Airport to Chicago Midway International Airport |
2h 27m | 938 mi | 44/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 Houston to Chicago, including American Airlines, Frontier Airlines, Southwest Airlines, United Airlines.
Recent scheduled departures on this route have used the Boeing 737, Airbus A320, Boeing 737-800, Boeing 737-900 and 2 other types.
Aircraft assignments change by season and by time of day.
The distance from Houston to Chicago 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 169 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 IAH–ORD 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 George Bush Intercontinental Houston Airport and Chicago O'Hare International Airport.
American Airlines, Frontier Airlines, Southwest Airlines, United Airlines.
Recent scheduled departures have used the Boeing 737, Airbus A320, Boeing 737-800, Boeing 737-900. Assignments change by season and by time of day.
IAH to ORD, HOU to MDW. Flight times differ slightly between them because the airports are not in the same place.
