My trip
Plan a trip
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.
SEA → SLC
Seattle to Salt Lake City · departing 5:30 AM
SEA → SLC flights departing 5–9 AM arrive on time 92.5% of the time, against 83.4% across the whole day — your departure window is 9.1 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 SEA → SLC
Time of day
5–9 AM is among the most reliable times to leave on SEA → SLC: 92.5% on time.
- 5–9 AM92.5%
- 9 AM–12 PM82.6%
- 12–3 PM82.7%
- 3–6 PM76.6%
- 6–9 PM80.1%
- 9 PM–5 AM89.0%
Day of week
- Monday83.7%
- Tuesday86.1%
- Wednesday86.1%
- Thursday81.5%
- Friday81.5%
- Saturday84.0%
- Sunday81.7%
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 SEA → SLC, the ones scheduled closest to 5:30 AM first.
| Flight | Usually departs | On time | Cancelled |
|---|---|---|---|
| DL1128Delta Air LinesLive map | 5:30 AM | 93.0% | 0.59% |
| DL1016Delta Air LinesLive map | 9:30 AM240 min away | 90.7% | 0.53% |
| DL1265Delta Air LinesLive map | 11:15 AM345 min away | 86.9% | 0.78% |
| AS733Alaska AirlinesLive map | 11:38 AM368 min away | 65.5% | 0.62% |
| DL1120Delta Air LinesLive map | 1:30 PM480 min away | 84.9% | 0.51% |
| DL1239Delta Air LinesLive map | 7:30 PM600 min away | 82.5% | 0.17% |
| OO3298SkyWest AirlinesLive map | 7:16 PM614 min away | 78.8% | 0.00% |
| DL1165Delta Air LinesLive map | 5:10 PM700 min away | 80.2% | 0.42% |
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 SEA, not a promise about your day.
1h 45m before your 5:30 AM 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 | 6,823 | 87.7% | 0.38% | -9 min |
| Alaska Airlines | 3,890 | 78.3% | 1.29% | -3 min |
| SkyWest Airlines | 1,441 | 78.1% | 0.07% | -2 min |