Direct (nonstop) flights from Chicago to Houston
5 airlines fly nonstop from Chicago O Hare International (ORD) to George Bush Intcntl Houston (IAH). It's 925 miles (1,488 km), about 3h 1m in the air. Operated by American Airlines, Aer Lingus, Frontier Airlines and others.
American Airlines
Aer Lingus
Frontier Airlines
Spirit Airlines
United Airlines
Route data last updated: May 30, 2026
Airlines with non-stop flights
AA
American Airlines
F9
Frontier Airlines
Alternative Routes
Other ways to fly from Chicago to Houston with one stop · direct emits 171 kg CO₂ per passenger
Looking for the return flight?
IAH → ORD: Flights from Houston to ChicagoOther direct flights from Chicago
Direct flights from Houston (IAH)
Frequently Asked Questions
How long is the direct flight from Chicago to Houston?
A nonstop flight from Chicago (ORD) to Houston (IAH) takes approximately 3 hours and 1 minutes. The distance is 925 miles (1,488 km).
Which airlines fly nonstop from Chicago to Houston?
5 airlines: American Airlines, Aer Lingus, Frontier Airlines, Spirit Airlines, United Airlines.
Is there a nonstop flight from Chicago to Houston?
Yes. 5 airlines: American Airlines, Aer Lingus, Frontier Airlines, Spirit Airlines, United Airlines.
How far is Chicago from Houston?
The flight distance from Chicago to Houston is 925 miles (1,488 km), measured as the great-circle (shortest air) distance. That's roughly the same distance as London to Madrid.
What type of aircraft flies from Chicago to Houston?
At 3h 1m, this route typically uses narrow-body or mid-range jets — Boeing 737 MAX or Airbus A320neo. Varies by airline.
What is the carbon footprint of a flight from Chicago to Houston?
Roughly 171 kg CO2 per passenger one-way. That's about the same as driving 855 km.
Is the return flight from Houston to Chicago also nonstop?
Yes — nonstop flights run both ways. Flight time may differ slightly due to wind patterns.
When is the cheapest time to fly from Chicago to Houston?
Midweek flights (Tue/Wed) outside holiday peaks are usually cheapest. 3-6 weeks ahead is a good window for this route. Use "Check Prices" above to compare.
How early should I arrive at Chicago O Hare International for this flight?
1.5-2 hours for domestic. Add more time during holidays or busy travel weekends.