Direct (nonstop) flights from Kalispell to Houston
1 airline flys nonstop from Glacier Park Intl (FCA) to George Bush Intcntl Houston (IAH). It's 1,612 miles (2,594 km), about 3h 52m in the air. Operated by United Airlines.
United Airlines
Route data last updated: May 29, 2026
Airlines with non-stop flights
UA
United Airlines
Alternative Routes
Other ways to fly from Kalispell to Houston with one stop · direct emits 272 kg CO₂ per passenger
Looking for the return flight?
IAH → FCA: Flights from Houston to KalispellOther direct flights from Kalispell
Direct flights from Houston (IAH)
Frequently Asked Questions
How long is the direct flight from Kalispell to Houston?
A nonstop flight from Kalispell (FCA) to Houston (IAH) takes approximately 3 hours and 52 minutes. The distance is 1,612 miles (2,594 km).
Which airlines fly nonstop from Kalispell to Houston?
Just United Airlines.
Is there a nonstop flight from Kalispell to Houston?
Yes. 1 airline: United Airlines.
How far is Kalispell from Houston?
The flight distance from Kalispell to Houston is 1,612 miles (2,594 km), measured as the great-circle (shortest air) distance.
What type of aircraft flies from Kalispell to Houston?
At 3h 52m, 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 Kalispell to Houston?
Roughly 272 kg CO2 per passenger one-way. That's about the same as driving 1,360 km.
Is the return flight from Houston to Kalispell 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 Kalispell 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 Glacier Park Intl for this flight?
1.5-2 hours for domestic. Add more time during holidays or busy travel weekends.