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 → SFO
Seattle to San Francisco · departing 7:55 PM
SEA → SFO flights departing 6–9 PM arrive on time 58.8% of the time, against 68.7% across the whole day — your departure window is 9.9 points worse 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 → SFO
Time of day
On SEA → SFO, flights leaving 12–3 PM arrived on time 74.5% of the time, against 58.8% for those leaving 6–9 PM: 15.7 points more often.
- 5–9 AM70.6%
- 9 AM–12 PM68.1%
- 12–3 PM74.5%
- 3–6 PM70.0%
- 6–9 PM58.8%
- 9 PM–5 AM68.0%
Day of week
- Monday65.1%
- Tuesday74.9%
- Wednesday70.8%
- Thursday65.7%
- Friday65.4%
- Saturday75.9%
- Sunday65.0%
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 SEA → SFO, the ones scheduled closest to 7:55 PM first.
Within 90 minutes of 7:55 PM, DL2635 (usually 9:20 PM) has the best record: 72.3% on time and 1.11% cancelled over 449 flights, against 68.7% on time for SEA → SFO as a whole.
| Flight | Usually departs | On time | Cancelled |
|---|---|---|---|
| UA737United AirlinesLive map | 7:34 PM21 min away | 69.1% | 0.46% |
| DL2635Delta Air LinesLive map | 9:20 PM85 min away | 72.3% | 1.11% |
| AS411Alaska AirlinesLive map | 9:42 PM107 min away | 63.3% | 0.00% |
| AS688Alaska AirlinesLive map | 5:59 PM116 min away | 52.9% | 0.48% |
| OO3991SkyWest AirlinesLive map | 5:50 PM125 min away | 64.0% | 0.46% |
| AS590Alaska AirlinesLive map | 4:42 PM193 min away | 57.3% | 1.59% |
| AS1385Alaska AirlinesLive map | 3:48 PM247 min away | 70.0% | 1.29% |
| AS680Alaska AirlinesLive map | 1:20 PM395 min away | 67.1% | 1.20% |
| AS655Alaska AirlinesLive map | 11:40 AM495 min away | 67.9% | 0.00% |
| OO5676SkyWest AirlinesLive map | 5:00 AM545 min away | 85.5% | 0.65% |
Source: FlyerIntel analysis of US DOT BTS data · July 2023 – July 2026 · Showing 10 of 13 flight numbers. “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.
2h 0m before your 7:55 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
Weather conditions are strongly associated with delays and cancellations.
Severe operational impact. Conditions of this kind are strongly associated with delays and cancellations.
- Visibility 2 statute miles.
- Cloud ceiling 100 feet.
Aviation 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.
Other ways to make this journey
Airport pairings serving Seattle to San Francisco.
Who flies this route
Performance by the carrier that actually operates the flight.
| Carrier | Flights | On time | Cancelled | Median delay |
|---|---|---|---|---|
| Alaska Airlines | 8,634 | 64.5% | 1.40% | 5 min |
| United Airlines | 6,012 | 71.5% | 0.80% | -4 min |
| SkyWest Airlines | 3,377 | 72.2% | 0.41% | -1 min |
| Delta Air Lines | 2,745 | 71.5% | 1.02% | -3 min |