Spokane (GEG) to Denver (DEN) flights
Southwest Airlines, United Airlines fly nonstop from Spokane International Airport to Denver International Airport, with about 41 flights a week in July 2026. The 836-mile flight takes about 2h 13m gate to gate.
- Distance
- 836 mi · 1,345 km
- Flight time
- 2h 13m
- Airlines
- 2
- Seats filled
- 81%
Airlines flying GEG to DEN
| Airline | Flights a week | Aircraft | Passengers (12 months) | Flight time |
|---|---|---|---|---|
| Southwest Airlines | 21 | Boeing 737 MAX 8, Boeing 737-700 / MAX 7, Boeing 737-800 | 118,585 | 2h 6m |
| United Airlines | 20 | Boeing 737-800, Boeing 737 MAX 9, Boeing 737-900ER | 112,130 | 2h 14m |
| Frontier AirlinesSeasonal or ended | n/a | Airbus A320neo, Airbus A321, Airbus A320-100/200 | 15,410 | 2h 18m |
| SkyWest AirlinesSeasonal or ended | n/a | Embraer E175, Bombardier CRJ700 | 13,203 | 2h 29m |
Airlines are the operating carrier: regional airlines such as SkyWest or Horizon often fly under a larger airline's brand.
GEG to DEN flight schedule
12 flight numbers flew this route in August 2026, 4 of them almost daily. The first usually leaves at 5:00am and the last at 4:18pm. 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 1234United Airlines | 5:00am | 8:22am | 31 | 96% |
| WN 1801Southwest Airlines | 6:30am | 9:45am | 24 | 96% |
| WN 4303Southwest Airlines | 10:35am | 1:50pm | 4 | n/a |
| WN 1703Southwest Airlines | 10:55am | 2:15pm | 12 | 83% |
| WN 1806Southwest Airlines | 11:05am | 2:25pm | 4 | n/a |
| WN 4088Southwest Airlines | 12:45pm | 4:00pm | 4 | n/a |
| UA 1255United Airlines | 1:37pm | 4:56pm | 31 | 79% |
| WN 3718Southwest Airlines | 1:50pm | 5:05pm | 14 | 58% |
| WN 661Southwest Airlines | 1:55pm | 5:10pm | 8 | n/a |
| WN 1543Southwest Airlines | 2:30pm | 5:50pm | 4 | n/a |
| UA 4776United Airlines · operated by SkyWest Airlines | 3:54pm | 7:27pm | 21 | 60% |
| UA 2786United Airlines | 4:18pm | 7:43pm | 10 | 73% |
Is GEG to DEN on time?
From September 2025 to August 2026, 84% of 2,042 flights arrived within 15 minutes of schedule and 0.3% were cancelled. Flights leaving around 5am were the most punctual (97%), those around 2pm the least (59%). Most delay time was caused by late-arriving aircraft (35%).
| Airline | Flights | On time | Average delay | Cancelled |
|---|---|---|---|---|
| United Airlines | 1,084 | 86% | 13 min | 0.6% |
| Southwest Airlines | 859 | 82% | 11 min | 0.1% |
| Frontier Airlines | 99 | 81% | 7 min | 0% |
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 |
|---|---|---|---|
| 5am to 6am | 481 | 97% | |
| 6am to 7am | 230 | 95% | |
| 10am to 11am | 45 | 93% | |
| 11am to 12pm | 85 | 84% | |
| 12pm to 1pm | 154 | 81% | |
| 1pm to 2pm | 433 | 77% | |
| 2pm to 3pm | 142 | 59% | |
| 3pm to 4pm | 53 | 65% | |
| 4pm to 5pm | 360 | 83% |
Flights by month
| Month | Flights | Flights, relative | Passengers |
|---|---|---|---|
| August 2025 | 185 | 25,843 | |
| September 2025 | 183 | 23,856 | |
| October 2025 | 165 | 21,768 | |
| November 2025 | 161 | 19,486 | |
| December 2025 | 172 | 21,187 | |
| January 2026 | 165 | 17,235 | |
| February 2026 | 147 | 16,961 | |
| March 2026 | 153 | 19,154 | |
| April 2026 | 165 | 20,890 | |
| May 2026 | 173 | 21,536 | |
| June 2026 | 187 | 25,464 | |
| July 2026 | 183 | 26,270 |
Related
Source: US Department of Transportation, T-100 Segment data, August 2025 to July 2026.