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Route Reliability

Washington → LEX

DCA–LEX · 414 miles · Ronald Reagan Washington National Airport to LEX Airport

66
Usually Fine
WanderNerd Reliability Score
75%
Arrive within 15 minutes
13 min
Average arrival delay
3.6%
Cancelled
303
Flights in the data

Data through May 2026.

Delta Air Lines is the only airline in this data on this route, arriving on time 75% of the time across 303 flights. No comparison to make.

What the data says

Friday is doing you no favors.

DCA–LEX flights arrived on time 84% of the time on Sundays and just 66% on Fridays. That gap is worth planning around.

Keep a backup plan handy.

This route was cancelled 3.6% of the time. Typical for U.S. flights is around 1–2%.

Slipping a little lately.

DCA–LEX flights arrived on time 76% of the time over the last three months in the data, compared with 82% in the three months before that.

The breakdown

On-time by weekday
  • Mon83%(47 flights)
  • Tue78%(50 flights)
  • Wed68%(47 flights)
  • Thu72%(47 flights)
  • Fri66%(47 flights)
  • Sat—(2 flights)
  • Sun84%(51 flights)
On-time by departure window
  • 6–9 PM—(1 flights)
  • 9 PM–12 AM75%(290 flights)
On-time trend by month
88%
May

Jun 64% → May 88% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202564%25
July 202564%22
August 202573%26
September 202577%26
October 202582%27
November 202570%23
December 202586%21
January 202686%22
February 202675%24
March 202662%26
April 202679%24
May 202688%25

Keep nerding

Based on 303 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.