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Knoxville (TYS) departure delays

Of 1,734 sampled departures, 27.3% left 15 minutes or more behind schedule. Average lateness was 19.8 minutes. Sample window: Jan 16, 2026 to Mar 27, 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
ChallengAir (1I) 67 77.6% 37.0 min
American Airlines (AA) 259 57.5% 48.0 min
Southwest Airlines Co. (WN) 53 50.9% 24.3 min
United Airlines (UA) 157 45.2% 41.1 min
Delta Air Lines (DL) 149 45.0% 37.6 min

The departures that are late right now

27.3% of this TYS 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=TYS

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": "TYS", "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 TYS departures that are late right now, in the JSON above. After the trial, Starter is $24.99/mo.

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