BTS DATA COMPLETE THROUGH JUNE 2026HISTORICAL ODDS · NOT LIVE FLIGHT STATUS
DelayOddsKnow the route before you book
DCA→TYS

Washington, DC (DCA) to Knoxville, TN (TYS) flight delay odds

65.7% of 1,023 official scheduled DCA-to-TYS flights arrived on time; 23.1% arrived at least 30 minutes late and 3.8% were cancelled during July 2025–June 2026.

Source: U.S. Bureau of Transportation Statistics · Reporting window: July 2025–June 2026 · Updated September 16, 2026

HISTORICAL ROUTE SIGNALVariable
65.7%arrived on time
23.1%30+ min late
3.8%cancelled
1,023scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late16.1%all scheduled flights
120+ minutes late7.3%all scheduled flights
Diverted0.1%did not reach as scheduled
Average arrival+23.4 mincompleted flights

Which departure time was most reliable for DCA to TYS?

Among qualifying DCA-to-TYS departure window results, Early morning had the highest on-time rate: 85.2% of 183 flights. Evening was lowest at 55.6% across 313 flights.

Departure windowFlightsOn time30+ minCancelled
Early morning18385.2%7.1%2.7%
Late morning16379.8%14.1%1.8%
Afternoon36458.2%28.6%3.3%
Evening31355.6%30.7%6.1%

Which weekday was most reliable for DCA to TYS?

Among qualifying DCA-to-TYS weekday results, Saturday had the highest on-time rate: 75.6% of 119 flights. Thursday was lowest at 59.5% across 148 flights.

DayFlightsOn time30+ minCancelled
Monday15063.3%23.3%4.7%
Tuesday15567.7%21.9%3.9%
Wednesday15265.1%24.3%2.6%
Thursday14859.5%26.4%3.4%
Friday14965.1%22.8%4.0%
Saturday11975.6%16.8%3.4%
Sunday15065.3%24.7%4.7%

Which airline was most reliable for DCA to TYS?

Among qualifying DCA-to-TYS airline results, Republic Airways had the highest on-time rate: 82.1% of 39 flights. PSA Airlines was lowest at 65.0% across 982 flights.

AirlineFlightsOn time30+ minCancelled
PSA Airlines98265.0%23.5%3.9%
Republic Airways3982.1%12.8%2.6%
Envoy Air2100.0%0.0%0.0%

Which month was most reliable for DCA to TYS?

Among qualifying DCA-to-TYS month results, September 2025 had the highest on-time rate: 80.2% of 86 flights. December 2025 was lowest at 47.6% across 63 flights.

MonthFlightsOn time30+ minCancelled
July 20259252.2%34.8%7.6%
August 20258970.8%14.6%7.9%
September 20258680.2%9.3%0.0%
October 20258968.5%23.6%0.0%
November 20258466.7%23.8%2.4%
December 20256347.6%38.1%3.2%
January 20267962.0%16.5%12.7%
February 20268071.2%18.8%2.5%
March 20268956.2%34.8%4.5%
April 20268974.2%22.5%0.0%
May 20269367.7%20.4%0.0%
June 20269066.7%22.2%5.6%

What drove DCA to TYS delay minutes?

Late aircraft was the largest recorded DCA-to-TYS delay category, accounting for 59.3% of 30,958 BTS-attributed delay minutes during July 2025–June 2026.

Airline21.0%
Late aircraft59.3%
National airspace12.2%
Weather7.1%
Security0.4%
This is historical evidence, not a forecast.

Weather, schedules and operations change. For a trip you have already booked, use the airline or airport for live status.