Houston (IAH) to Chicago (ORD) is about 930 miles and typically takes 2 h 25 min by air. Some carriers have hubs at both ends, which makes frequent nonstops more likely. Call (800) 490-3234 for live fares.
IAH to ORD at a glance
| Route | Houston (IAH) to Chicago (ORD) |
|---|---|
| Distance | about 930 miles / 1,490 km |
| Typical flight time | 2 h 25 min (estimate) |
| Time difference | None |
| Route type | Domestic (U.S.) |
| Airlines with hubs here | American Airlines and United Airlines |
About the Houston to Chicago route
With roughly 930 miles between IAH and ORD, this route sits in the middle range where both nonstop and one-stop options can be competitive.
Flight time and distance
A typical flight takes about 2 h 25 min gate to gate, with a realistic range of 2 h 05 min to 2 h 50 min depending on wind, routing and aircraft. That is an estimate based on the distance of roughly 930 miles (1,490 km), not a published schedule.
Among the 200 routes in our guides, IAH to ORD is longer than about 29% of them.
For comparison, Houston to Denver (IAH to DEN) is about 860 miles, so Chicago is a bit farther out from IAH.
The airports
George Bush Intercontinental Airport (IAH)
Bush Intercontinental is United's gateway to Latin America and Texas. Full IAH guide.
O'Hare International Airport (ORD)
O'Hare is a dual hub for United and American and one of the busiest airports in the world by flight volume, with nonstops to most major U.S. cities and a long list of international destinations. Full ORD guide.
Do not stop at IAH and ORD. Also compare around Houston, Houston Hobby (HOU); and around Chicago, Midway (MDW), because a different airport can change both the fare and your ground travel.
Airlines on this route
United Airlines has a hub at both ends, so it is the most likely to offer frequent nonstop service and easy rebooking on this route.
American Airlines also has a major presence at one of the two airports.
Nonstop availability on any route can shift from one season to the next, so treat this as a guide to who is likely to serve the market, not a timetable.
Common connection points
Connecting itineraries on this route often look like American Airlines via Dallas (DFW), which adds about 100 miles (11% beyond the direct distance) or United Airlines via Denver (DEN), which adds about 820 miles (89% beyond the direct distance). Choose the connection with the best weather odds for your travel month and leave a comfortable layover; our layover guide explains how much time is realistic.
Best time to fly
Seasonal factors to weigh: at ORD, winter storms and summer thunderstorms are the main triggers for delays; connecting through O'Hare in January deserves extra buffer. At IAH, hurricane season from June to November can bring weather-related disruptions.
Ground transport
Getting to and from IAH
Metro buses and a flat-rate airport shuttle serve downtown; most visitors use rideshare or rental cars.
Getting to and from ORD
The CTA Blue Line runs 24 hours into downtown Chicago in about 45 minutes.
Booking tips
Many travelers on Houston to Chicago fly midweek for work, which can make Tuesday and Wednesday busier than you might expect. Compare departures across the day on our cheap-flights checklist.
Frequently asked questions
How long is the flight from Houston to Chicago?
A typical IAH to ORD flight takes about 2 h 25 min, with a likely range of 2 h 05 min to 2 h 50 min. Actual time depends on wind, routing, aircraft and whether you connect.
How far is Chicago from Houston by air?
The great-circle distance between IAH and ORD is about 930 miles (1,490 km).
Which airlines fly from Houston to Chicago?
American Airlines and United Airlines have a major presence at IAH or ORD, and service varies by season. Ask us to check current nonstop and connecting options.
Are there other airports near Houston?
Yes. Nearby alternatives include Houston Hobby (HOU). Comparing them can change both fare and travel time.
When is the best time to book IAH to ORD?
Domestic fares are often competitive one to three months ahead, while international trips benefit from more lead time. Compare several dates, since fares are priced flight by flight.
Explore related routes
More flights involving Houston (IAH)
- Delhi to HoustonDEL to IAH
- Houston to DenverIAH to DEN
- Houston to Los AngelesIAH to LAX
- Houston to NewarkIAH to EWR
- Houston to San FranciscoIAH to SFO
- Houston to SeattleIAH to SEA
More flights involving Chicago (ORD)
- Anchorage to ChicagoANC to ORD
- Austin to ChicagoAUS to ORD
- Chicago to AtlantaORD to ATL
- Chicago to BostonORD to BOS
- Chicago to ClevelandORD to CLE
- Chicago to DallasORD to DFW
Last reviewed October 22, 2026. FlighTicketHub provides general information; confirm details with the airline before you travel.