Direct (nonstop) flights from Houston to Calgary
2 airlines fly nonstop from George Bush Intcntl Houston (IAH) to Calgary International (YYC). It's 1,748 miles (2,813 km), about 4h 20m in the air. Operated by United Airlines, WestJet.
United Airlines
WestJet
Route data last updated: May 26, 2026
Airlines with non-stop flights
UA
United Airlines
Alternative Routes
Other ways to fly from Houston to Calgary with one stop · direct emits 295 kg CO₂ per passenger
Looking for the return flight?
YYC → IAH: Flights from Calgary to HoustonOther direct flights from Houston
Direct flights from Calgary (YYC)
Frequently Asked Questions
How long is the direct flight from Houston to Calgary?
A nonstop flight from Houston (IAH) to Calgary (YYC) takes approximately 4 hours and 20 minutes. The distance is 1,748 miles (2,813 km).
Which airlines fly nonstop from Houston to Calgary?
2 airlines: United Airlines, WestJet.
Is there a nonstop flight from Houston to Calgary?
Yes. 2 airlines: United Airlines, WestJet.
How far is Houston from Calgary?
The flight distance from Houston to Calgary is 1,748 miles (2,813 km), measured as the great-circle (shortest air) distance.
What is the time difference between Houston and Calgary?
Calgary is 1 hour behind Houston. (America/Chicago vs America/Edmonton.)
What type of aircraft flies from Houston to Calgary?
At 4h 20m, 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 USA to Canada?
Depends on your passport. Check with the Canada embassy or an official visa portal before booking — requirements change.
What is the carbon footprint of a flight from Houston to Calgary?
Roughly 295 kg CO2 per passenger one-way. That's about the same as driving 1,475 km.
Is the return flight from Calgary 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 Calgary?
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?
3 hours before departure for international flights. You need time for check-in, security, and immigration.