Direct (nonstop) flights from Denver to Great Falls
1 airline flys nonstop from Denver International (DEN) to Great Falls International (GTF). It's 623 miles (1,003 km), about 2h 2m 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 Denver to Great Falls with one stop · direct emits 115 kg CO₂ per passenger
Looking for the return flight?
GTF → DEN: Flights from Great Falls to DenverOther direct flights from Denver
Direct flights from Great Falls (GTF)
Frequently Asked Questions
How long is the direct flight from Denver to Great Falls?
A nonstop flight from Denver (DEN) to Great Falls (GTF) takes approximately 2 hours and 2 minutes. The distance is 623 miles (1,003 km).
Which airlines fly nonstop from Denver to Great Falls?
Just United Airlines.
Is there a nonstop flight from Denver to Great Falls?
Yes. 1 airline: United Airlines.
How far is Denver from Great Falls?
The flight distance from Denver to Great Falls 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 Denver to Great Falls?
At 2h 2m, 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 Denver to Great Falls?
Roughly 115 kg CO2 per passenger one-way. That's about the same as driving 575 km.
Is the return flight from Great Falls to Denver 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 Denver to Great Falls?
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 Denver International for this flight?
1.5-2 hours for domestic. Add more time during holidays or busy travel weekends.