Direct (nonstop) flights from Calgary to Houston
2 airlines fly nonstop from Calgary International (YYC) to George Bush Intcntl Houston (IAH). It's 1,748 miles (2,813 km), about 4h 10m in the air. Operated by United Airlines, WestJet.
United Airlines
WestJet
Route data last updated: May 30, 2026
Airlines with non-stop flights
UA
United Airlines
Alternative Routes
Other ways to fly from Calgary to Houston with one stop · direct emits 295 kg CO₂ per passenger
Looking for the return flight?
IAH → YYC: Flights from Houston to CalgaryOther direct flights from Calgary
Direct flights from Houston (IAH)
Frequently Asked Questions
How long is the direct flight from Calgary to Houston?
A nonstop flight from Calgary (YYC) to Houston (IAH) takes approximately 4 hours and 10 minutes. The distance is 1,748 miles (2,813 km).
Which airlines fly nonstop from Calgary to Houston?
2 airlines: United Airlines, WestJet.
Is there a nonstop flight from Calgary to Houston?
Yes. 2 airlines: United Airlines, WestJet.
How far is Calgary from Houston?
The flight distance from Calgary to Houston is 1,748 miles (2,813 km), measured as the great-circle (shortest air) distance.
What is the time difference between Calgary and Houston?
Houston is 1 hour ahead of Calgary. (America/Edmonton vs America/Chicago.)
What type of aircraft flies from Calgary to Houston?
At 4h 10m, this route typically uses narrow-body or mid-range jets — Boeing 737 MAX or Airbus A320neo. Varies by airline.
Do I need a visa to travel from Canada to USA?
Depends on your passport. Check with the USA embassy or an official visa portal before booking — requirements change.
What is the carbon footprint of a flight from Calgary to Houston?
Roughly 295 kg CO2 per passenger one-way. That's about the same as driving 1,475 km.
Is the return flight from Houston to Calgary 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 Calgary 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 Calgary International for this flight?
3 hours before departure for international flights. You need time for check-in, security, and immigration.