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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.
DTW → SEA
Detroit to Seattle · departing 12:15 PM
DTW → SEA flights departing 12–3 PM arrive on time 84.8% of the time, against 80.4% across the whole day — your departure window is 4.4 points better than average for this route.
There is no day-by-hour view for DTW → SEA: only 25 of its weekday-and-hour slots have 120 or more flights, and a day-by-hour view needs 45.
Other times on DTW → SEA
Time of day
12–3 PM is among the most reliable times to leave on DTW → SEA: 84.8% on time.
- 5–9 AM85.6%
- 9 AM–12 PMToo few flights to score
- 12–3 PM84.8%
- 3–6 PM79.4%
- 6–9 PM72.1%
- 9 PM–5 AMToo few flights to score
Day of week
- Monday80.3%
- Tuesday84.1%
- Wednesday80.8%
- Thursday79.2%
- Friday77.4%
- Saturday82.3%
- Sunday79.0%
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 DTW → SEA, the ones scheduled closest to 12:15 PM first.
| Flight | Usually departs | On time | Cancelled |
|---|---|---|---|
| DL728Delta Air LinesLive map | 12:15 PM | 84.8% | 0.38% |
| DL944Delta Air LinesLive map | 3:55 PM220 min away | 77.8% | 0.33% |
| DL734Delta Air LinesLive map | 8:30 AM225 min away | 84.0% | 0.95% |
| DL814Delta Air LinesLive map | 6:00 AM375 min away | 91.5% | 0.84% |
| DL565Delta Air LinesLive map | 8:20 PM485 min away | 69.0% | 0.94% |
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 DTW, not a promise about your day.
2h 0m before your 12:15 PM departure
How this was worked out
- 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 |
|---|---|---|---|---|
| Delta Air Lines | 4,795 | 81.1% | 0.63% | -8 min |
| Alaska Airlines | 1,627 | 78.1% | 0.74% | -3 min |