Flights Washington → Knoxville
IAD → TYS
How long is the flight from Washington to Knoxville?
The flight from Washington (IAD) to Knoxville (TYS) takes 1h 13m on average. That is the median time recorded across 4 scheduled flights on this leg; the actual time varies by a few minutes with wind, routing and take-off queues.
Route overview
The flight route from Washington to Knoxville has an on-time performance rate of 88%, with an average delay of 5.7 minutes per flight. Over the course of a year, this route sees approximately 292 flights, serving the popular destination airport in Knoxville that handles nearly 1.83 million passengers annually.
Your rights on this US flight (DOT)
US flights have no statutory cash compensation for delays. Under the US DOT rules, if your flight is cancelled or significantly changed and you decline rebooking, you're owed an automatic refund of the unused ticket. The tarmac-delay limit is 3 hours (domestic) / 4 hours (international). Amenities for controllable delays depend on each airline's contract of carriage.
US flight refund rules & checker →General information, not legal advice.
The Washington (IAD) → Knoxville (TYS) route is operated by United Airlines. Across 780 flights monitored in recent months, 80% arrived on time (within 15 min of schedule), with an average delay of 25 minutes. The cancellation rate is 0.77%. FlightGuard's average computed risk is 25.3/100 (medium), updated in real time from weather, ATC delays, strikes, NOTAMs, fuel and flight history. At Knoxville the average ATFM delay is 5.5 minutes (main cause: atfm). Departing from Washington the average ATFM delay is 5.5 minutes.
Heading to Knoxville: what to expect in this direction
Flying from Washington (IAD) to Knoxville (TYS) heads south-west for about 674 km, a flight time of roughly 1h 13m.
Departures from Washington on this leg cluster in the midday window: about 30% of IAD-TYS flights take off then.
Air-traffic congestion: departing Washington the average ATFM delay is 5.5 min (atfm); arriving into Knoxville it is 5.5 min (atfm).
Across 780 tracked IAD-TYS flights, 80% left on time with an average delay of 25 min and a 0.8% cancellation rate.
Route facts
Flights on this route
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Airline punctuality on this route
| Airline | On-time | Average delay | Cancellations |
|---|---|---|---|
| United Airlines (UA) | 83% | 5 min | 1.3% |
Airlines operating IAD-TYS
Airports
Frequently asked questions about IAD-TYS
The flight from Washington (IAD) to Knoxville (TYS) takes 1h 13m on average. That is the median time recorded across 4 scheduled flights on this leg; the actual time varies by a few minutes with wind, routing and take-off queues.
On the Washington (IAD) -> Knoxville (TYS) route, on-time performance is 80% with an average delay of 25 minutes, based on 780 tracked flights.
The cancellation rate on Washington-Knoxville is 0.77% across 780 monitored flights.
The route is operated by 1 airline: United Airlines.
Enter your flight number on FlightGuard for a real-time analysis based on 9 factors: weather at Knoxville, ATC delays, strikes, NOTAMs, fuel, airline punctuality and recent trends.
US flights have no statutory cash compensation for delays. Under US DOT rules, if the airline cancels or significantly changes your flight and you decline rebooking, you're owed an automatic refund of the unused ticket. The tarmac-delay limit is 3 hours (domestic) / 4 hours (international). Meals or hotels for controllable delays depend on each airline's contract of carriage.
