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Route Reliability

Washington → Atlanta

DCA–ATL · 547 miles · Ronald Reagan Washington National Airport to Hartsfield–Jackson Atlanta International Airport

72
Usually Fine
WanderNerd Reliability Score
78%
Arrive within 15 minutes
8 min
Average arrival delay
3.5%
Cancelled
6,819
Flights in the data

Data through May 2026.

Who flies it best

Ranked by on-time arrivals. Historical results, not predictions.

  1. 1.Delta Air Lines81%3,830 flights
  2. 2.Southwest Airlines78%1,169 flights
  3. 3.American Airlines74%1,820 flights

What the data says

Morning flights do better here.

DCA–ATL flights departing between 6–9 AM arrived on time 88% of the time, versus 55% between 9 PM–12 AM.

Sunday scaries are real for this one.

DCA–ATL flights arrived on time 86% of the time on Saturdays. On Sundays: 75%.

Delta Air Lines has a slight edge here.

Delta Air Lines arrived on time 81% of the time on this route; American Airlines managed 74%.

Keep a backup plan handy.

This route was cancelled 3.5% 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
  • Mon77%(980 flights)
  • Tue80%(1003 flights)
  • Wed79%(955 flights)
  • Thu78%(1001 flights)
  • Fri76%(975 flights)
  • Sat86%(719 flights)
  • Sun75%(933 flights)
On-time by departure window
  • 6–9 AM88%(2096 flights)
  • 9 AM–12 PM86%(1039 flights)
  • 12–3 PM77%(1202 flights)
  • 3–6 PM67%(747 flights)
  • 6–9 PM67%(1364 flights)
  • 9 PM–12 AM55%(118 flights)
On-time trend by month
77%
May

Jun 67% → May 77% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202567%543
July 202567%529
August 202581%569
September 202586%593
October 202585%580
November 202578%524
December 202574%524
January 202682%518
February 202682%506
March 202678%558
April 202683%561
May 202677%561

Same trip, other airports

Keep nerding

Based on 6,819 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.