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Tell FlyerIntel where and when you are flying. It will show how that route actually performs at that time of day and on that day of the week, what both airports are doing right now, and when to get to the airport.
DEN → SEA
Denver to Seattle · departing 6:15 AM
DEN → SEA flights departing 5–9 AM arrive on time 87.4% of the time, against 74.7% across the whole day — your departure window is 12.7 points better than average for this route.
Your slot
Add a date above to see how that hour has done on your day of the week, and what a nearby slot would change.
Other times on DEN → SEA
Time of day
5–9 AM is among the most reliable times to leave on DEN → SEA: 87.4% on time.
- 5–9 AM87.4%
- 9 AM–12 PM79.7%
- 12–3 PM77.2%
- 3–6 PM68.6%
- 6–9 PM64.0%
- 9 PM–5 AM62.9%
Day of week
- Monday74.9%
- Tuesday76.4%
- Wednesday75.6%
- Thursday73.6%
- Friday73.6%
- Saturday75.2%
- Sunday73.8%
Bars start below the lowest figure so a real gap is visible; read the percentage, not the bar length. A time with too few flights to score is left unscored rather than guessed at.
Source: FlyerIntel analysis of US DOT BTS data · July 2023 – July 2026 · History describes what has happened on this route. It is not a prediction about your flight. Full route profile →
Which flight
Flights on DEN → SEA, the ones scheduled closest to 6:15 AM first.
Within 90 minutes of 6:15 AM, UA2271 (usually 7:45 AM) has the best record: 90.9% on time and 0.87% cancelled over 345 flights, against 74.7% on time for DEN → SEA as a whole.
| Flight | Usually departs | On time | Cancelled |
|---|---|---|---|
| DL1731Delta Air LinesLive map | 6:15 AM | 90.1% | 0.85% |
| AS643Alaska AirlinesLive map | 6:00 AM15 min away | 88.2% | 0.61% |
| F91175Frontier AirlinesLive map | 6:00 AM15 min away | 80.1% | 1.20% |
| F94545Frontier AirlinesLive map | 7:13 AM58 min away | 79.8% | 0.87% |
| UA2271United AirlinesLive map | 7:45 AM90 min away | 90.9% | 0.87% |
| UA1424United AirlinesLive map | 11:50 AM335 min away | 85.9% | 0.78% |
| UA2651United AirlinesLive map | 8:55 PM560 min away | 69.8% | 1.12% |
| UA2013United AirlinesLive map | 3:58 PM583 min away | 79.8% | 0.77% |
Source: FlyerIntel analysis of US DOT BTS data · July 2023 – July 2026 · “Usually departs” is the scheduled time each flight number most often had over the period; airlines retime flights, so confirm the time on your booking. Flight numbers with fewer than 90 operations on this route are left out. This is history, not a forecast for your flight.
When to get to the airport
A starting point for DEN, not a promise about your day.
1h 45m before your 6:15 AM departure
How this was worked out
- FlyerIntel cannot currently obtain live security wait times for DEN, so this figure does not account for the queue on the day.
- It does not include your journey to the airport, parking, or a shuttle from a remote lot.
- International departures, and travel with children, checked pets or special assistance, need more time.
Both airports right now
Aviation weather is not currently a factor.
Minimal operational impact. Conditions are not a notable factor for operations right now.
UpdatedAviation weather is not currently a factor.
Minimal operational impact. Conditions are not a notable factor for operations right now.
UpdatedSource: NOAA Aviation Weather Center · Conditions describe the airfield, not your flight, and change quickly.
Who flies this route
Performance by the carrier that actually operates the flight.
| Carrier | Flights | On time | Cancelled | Median delay |
|---|---|---|---|---|
| United Airlines | 6,063 | 79.7% | 0.64% | -6 min |
| Alaska Airlines | 4,902 | 75.0% | 0.94% | -4 min |
| Southwest Airlines | 4,527 | 63.7% | 0.27% | 6 min |
| Delta Air Lines | 2,873 | 80.3% | 0.70% | -9 min |
| Frontier Airlines | 1,436 | 74.6% | 1.11% | -5 min |
| SkyWest Airlines | 489 | 80.1% | 0.41% | -5 min |