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Route Reliability

Washington → Knoxville

DCA–TYS · 437 miles · Ronald Reagan Washington National Airport to McGhee Tyson Airport

53
A Little Dicey
WanderNerd Reliability Score
68%
Arrive within 15 minutes
24 min
Average arrival delay
3.9%
Cancelled
1,022
Flights in the data

Data through May 2026.

American Airlines is the only airline in this data on this route, arriving on time 68% of the time across 1,022 flights. No comparison to make.

What the data says

Morning-you made the right choice.

DCA–TYS flights departing between 6–9 AM arrived on time 89% of the time, versus 54% between 3–6 PM.

Thursdays have been rough.

DCA–TYS flights arrived on time 78% of the time on Saturdays and just 61% on Thursdays. That gap is worth planning around.

Keep a backup plan handy.

This route was cancelled 3.9% of the time. Typical for U.S. flights is around 1–2%.

Best historical flights

Ranked by on-time arrivals, minimum 100 flights. Past performance, not a promise.

Top flights by on-time rate

More flights on this route

The breakdown

On-time by weekday
  • Mon66%(143 flights)
  • Tue71%(145 flights)
  • Wed66%(148 flights)
  • Thu61%(142 flights)
  • Fri67%(143 flights)
  • Sat78%(114 flights)
  • Sun69%(146 flights)
On-time by departure window
  • 6–9 AM89%(203 flights)
  • 9 AM–12 PM83%(136 flights)
  • 12–3 PM63%(233 flights)
  • 3–6 PM54%(118 flights)
  • 6–9 PM57%(291 flights)
On-time trend by month
70%
May

Jun 59% → May 70% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202559%82
July 202557%85
August 202577%83
September 202582%85
October 202569%89
November 202570%82
December 202553%61
January 202671%69
February 202674%78
March 202660%85
April 202674%89
May 202670%93

Same trip, other airports

Keep nerding

Based on 1,022 historical flights, because apparently we checked. Historical flight data: U.S. Bureau of Transportation Statistics, June 2025 – May 2026. Data through May 2026. How we calculate this.