Denver (DEN) to Great Falls (GTF) flights
United Airlines flies nonstop from Denver International Airport to Great Falls International Airport, with about 14 flights a week in July 2026. The 623-mile flight takes about 1h 58m gate to gate.
- Distance
- 623 mi · 1,003 km
- Flight time
- 1h 58m
- Airlines
- 1
- Seats filled
- 82%
Airlines flying DEN to GTF
| Airline | Flights a week | Aircraft | Passengers (12 months) | Flight time |
|---|---|---|---|---|
| United Airlines | 14 | Airbus A319, Airbus A320-100/200, Boeing 737-800 | 57,267 | 1h 54m |
| SkyWest AirlinesSeasonal or ended | n/a | Embraer E175, Bombardier CRJ200 | 12,531 | 2h 8m |
Airlines are the operating carrier: regional airlines such as SkyWest or Horizon often fly under a larger airline's brand.
DEN to GTF flight schedule
4 flight numbers flew this route in August 2026, 2 of them almost daily. The first usually leaves at 11:33am and the last at 7:38pm. Times are local and can change; check with the airline before you book.
| Flight | Departs | Arrives | Days flown in August 2026 | On time (12 months) |
|---|---|---|---|---|
| UA 2390United Airlines | 11:33am | 1:29pm | 21 | 91% |
| UA 2128United Airlines | 11:43am | 1:41pm | 10 | 76% |
| UA 1515United Airlines | 7:15pm | 9:12pm | 21 | 38% |
| UA 1354United Airlines | 7:38pm | 9:34pm | 10 | 41% |
Is DEN to GTF on time?
From September 2025 to August 2026, 77% of 728 flights arrived within 15 minutes of schedule and 0.5% were cancelled. Flights leaving around 8pm were the most punctual (95%), those around 7pm the least (66%). Most delay time was caused by late-arriving aircraft (51%).
| Airline | Flights | On time | Average delay | Cancelled |
|---|---|---|---|---|
| United Airlines | 728 | 77% | 17 min | 0.5% |
Airlines as sold: flights operated by regional partners count under the airline on the ticket. Average delay is across all completed flights, early arrivals counted as zero.
On-time arrivals by departure time
| Scheduled departure | Flights | On time, relative | On time |
|---|---|---|---|
| 11am to 12pm | 365 | 83% | |
| 7pm to 8pm | 307 | 66% | |
| 8pm to 9pm | 56 | 95% |
Flights by month
| Month | Flights | Flights, relative | Passengers |
|---|---|---|---|
| August 2025 | 62 | 6,566 | |
| September 2025 | 61 | 6,193 | |
| October 2025 | 62 | 6,214 | |
| November 2025 | 60 | 4,822 | |
| December 2025 | 64 | 4,641 | |
| January 2026 | 62 | 4,350 | |
| February 2026 | 55 | 3,509 | |
| March 2026 | 61 | 5,661 | |
| April 2026 | 61 | 5,942 | |
| May 2026 | 64 | 6,865 | |
| June 2026 | 60 | 7,270 | |
| July 2026 | 62 | 7,765 |
Related
Source: US Department of Transportation, T-100 Segment data, August 2025 to July 2026.