IAH to ORD Route Guide
Houston, United States → Chicago, United States
Quick answer
KIAH (Houston, United States) to KORD (Chicago, United States) is a 804 NM (1,489 km / 925 mi) great-circle route with an initial bearing of 25° (NNE). Typical cruise altitude FL350, expected flight time 2h 12m, common aircraft: Boeing 737-800, Airbus A320neo, Airbus A321neo.
Distance
804 NM
1,489 km / 925 mi
Initial Bearing
25° (NNE)
True heading at departure
Typical Cruise
FL350
35,000 ft
Block Time
2h 12m
Typical jet, no wind correction
Fuel Estimate
3,912 kg
Single-aisle equivalent + reserve
Departure Elevation
97 ft
KIAH
Arrival Elevation
672 ft
KORD
What aircraft fly this route?
For a 804 NM mission, operators typically deploy:
- Boeing 737-800
- Airbus A320neo
- Airbus A321neo
- Boeing 737 MAX 8
Weather considerations
Pilots flying IAH-ORD should brief METARs and TAFs at both ends, plus any en-route SIGMETs.
Frequently asked questions
What is the distance between IAH and ORD?
804 nautical miles (1,489 km / 925 statute miles) great-circle.
How long is the flight from Houston to Chicago?
Approximately 2h 12m block-to-block for a typical commercial jet, depending on aircraft type and winds.
What aircraft typically fly IAH-ORD?
Common types include Boeing 737-800, Airbus A320neo, Airbus A321neo, Boeing 737 MAX 8 depending on operator and demand.
What altitude do flights cruise at?
Most flights at this distance cruise around FL350 (35,000 ft), though winds and traffic affect filed altitude.
What initial heading is the route?
25° true (NNE). Track varies along the route due to great-circle curvature.
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