Direct (nonstop) flights from Houston to Chicago
4 airlines fly nonstop from George Bush Intcntl Houston (IAH) to Chicago O Hare International (ORD). It's 925 miles (1,488 km), about 2h 46m in the air. Operated by American Airlines, Frontier Airlines, Spirit Airlines and others.
American Airlines
Frontier Airlines
Spirit Airlines
United Airlines
Route data last updated: May 28, 2026
Airlines with non-stop flights
AA
American Airlines
F9
Frontier Airlines
NK
Spirit Airlines
UA
United Airlines
Alternative Routes
Other ways to fly from Houston to Chicago with one stop · direct emits 171 kg CO₂ per passenger
Looking for the return flight?
ORD → IAH: Flights from Chicago to HoustonOther direct flights from Houston
Direct flights from Chicago (ORD)
Frequently Asked Questions
How long is the direct flight from Houston to Chicago?
A nonstop flight from Houston (IAH) to Chicago (ORD) takes approximately 2 hours and 46 minutes. The distance is 925 miles (1,488 km).
Which airlines fly nonstop from Houston to Chicago?
4 airlines: American Airlines, Frontier Airlines, Spirit Airlines, United Airlines.
Is there a nonstop flight from Houston to Chicago?
Yes. 4 airlines: American Airlines, Frontier Airlines, Spirit Airlines, United Airlines.
How far is Houston from Chicago?
The flight distance from Houston to Chicago 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 Houston to Chicago?
At 2h 46m, 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 Houston to Chicago?
Roughly 171 kg CO2 per passenger one-way. That's about the same as driving 855 km.
Is the return flight from Chicago to Houston 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 Houston to Chicago?
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 George Bush Intcntl Houston for this flight?
1.5-2 hours for domestic. Add more time during holidays or busy travel weekends.