FlightLabs
bolt Start Free Trial

San Francisco International Airport (SFO) departure delays

Of 14,318 sampled departures, 63.6% left 15 minutes or more behind schedule. Average lateness was 32.1 minutes. Sample window: Nov 8, 2025 to Oct 26, 2026.

These are historical aggregates, not live status. A departure is late at 15 minutes past schedule.

When departures are on time

Airlines with the most late departures

Airline Flights sampled Late Average lateness
All Nippon Airways (NH) 29 100.0% 57.6 min
Qatar Airways (QR) 20 100.0% 101.6 min
Zipair Tokyo (ZG) 42 97.6% 46.9 min
Korean Air (KE) 35 97.1% 35.4 min
Air New Zealand (NZ) 28 96.4% 27.0 min

The departures that are late right now

63.6% of this SFO sample left 15 minutes late or more. GET /flight_delays returns the ones that are late at this moment: airline, flight number, scheduled time, actual time and minutes of delay.

https://www.goflightlabs.com/flight_delays?access_key=YOUR_ACCESS_KEY&delay=15&type=departures&dep_iata=SFO

Example response

Field names match the live API. This flight only shows the shape. It is not a live result.

{ "success": true, "data": [ { "airline_iata": "AA", "flight_iata": "AA100", "flight_number": "100", "dep_iata": "SFO", "dep_time": "2024-03-15 08:00", "dep_actual": "2024-03-15 08:22", "dep_delayed": 22, "status": "active" } ] }

That URL still says YOUR_ACCESS_KEY. A 7-day trial replaces it with a real key and returns the SFO departures that are late right now, in the JSON above. After the trial, Starter is $24.99/mo.

Start free trial Delay API docs