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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.
ATL → SEA
Atlanta to Seattle · departing 12:15 PM
ATL → SEA flights departing 12–3 PM arrive on time 85.2% of the time, against 80.0% across the whole day — your departure window is 5.2 points better than average for this route.
There is no day-by-hour view for ATL → SEA: only 29 of its weekday-and-hour slots have 120 or more flights, and a day-by-hour view needs 45.
Other times on ATL → SEA
Time of day
- 5–9 AM86.9%
- 9 AM–12 PM82.6%
- 12–3 PM85.2%
- 3–6 PM77.4%
- 6–9 PM66.2%
- 9 PM–5 AM79.7%
Day of week
- Monday80.6%
- Tuesday81.1%
- Wednesday82.2%
- Thursday79.5%
- Friday78.3%
- Saturday81.7%
- Sunday76.8%
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 ATL → SEA, the ones scheduled closest to 12:15 PM first.
Within 90 minutes of 12:15 PM, DL629 (usually 12:15 PM) has the best record: 86.6% on time and 0.50% cancelled over 1,004 flights, against 80.0% on time for ATL → SEA as a whole.
| Flight | Usually departs | On time | Cancelled |
|---|---|---|---|
| DL629Delta Air LinesLive map | 12:15 PM | 86.6% | 0.50% |
| DL648Delta Air LinesLive map | 11:10 AM65 min away | 84.6% | 0.00% |
| DL481Delta Air LinesLive map | 1:57 PM102 min away | 84.7% | 0.32% |
| DL774Delta Air LinesLive map | 9:40 AM155 min away | 84.3% | 0.27% |
| AS348Alaska AirlinesLive map | 8:54 AM201 min away | 66.9% | 1.55% |
| DL472Delta Air LinesLive map | 4:25 PM250 min away | 75.4% | 0.63% |
| DL444Delta Air LinesLive map | 7:45 AM270 min away | 86.0% | 1.22% |
| AS377Alaska AirlinesLive map | 7:00 AM315 min away | 85.8% | 0.41% |
| DL714Delta Air LinesLive map | 6:20 PM365 min away | 65.8% | 0.29% |
| DL903Delta Air LinesLive map | 9:25 PM550 min away | 78.4% | 1.04% |
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 ATL, not a promise about your day.
2h 0m before your 12:15 PM departure
How this was worked out
- FlyerIntel cannot currently obtain live security wait times for ATL, 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 |
|---|---|---|---|---|
| Delta Air Lines | 7,457 | 81.6% | 0.66% | -8 min |
| Alaska Airlines | 3,138 | 76.2% | 1.18% | -4 min |