Direct (nonstop) flights from Great Falls to Denver
1 airline flys nonstop from Great Falls International (GTF) to Denver International (DEN). It's 623 miles (1,003 km), about 2h 3m in the air. Operated by United Airlines.
United Airlines
Route data last updated: May 31, 2026
Airlines with non-stop flights
Alternative Routes
Other ways to fly from Great Falls to Denver with one stop · direct emits 115 kg CO₂ per passenger
Looking for the return flight?
DEN → GTF: Flights from Denver to Great FallsOther direct flights from Great Falls
Direct flights from Denver (DEN)
Frequently Asked Questions
How long is the direct flight from Great Falls to Denver?
A nonstop flight from Great Falls (GTF) to Denver (DEN) takes approximately 2 hours and 3 minutes. The distance is 623 miles (1,003 km).
Which airlines fly nonstop from Great Falls to Denver?
Just United Airlines.
Is there a nonstop flight from Great Falls to Denver?
Yes. 1 airline: United Airlines.
How far is Great Falls from Denver?
The flight distance from Great Falls to Denver is 623 miles (1,003 km), measured as the great-circle (shortest air) distance. That's roughly the same distance as the length of Italy.
What type of aircraft flies from Great Falls to Denver?
At 2h 3m, 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 Great Falls to Denver?
Roughly 115 kg CO2 per passenger one-way. That's about the same as driving 575 km.
Is the return flight from Denver to Great Falls 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 Great Falls to Denver?
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 Great Falls International for this flight?
1.5-2 hours for domestic. Add more time during holidays or busy travel weekends.