Flight Reliability
DL 325 · Delta Air Lines
Atlanta → Washington (ATL–DCA)
42
Bring Snacks
WanderNerd Reliability Score
- 57%
- Arrive within 15 minutes
- 22 min
- Average arrival delay
- 3.0%
- Cancelled
- 9 min
- Median arrival delay
Based on 362 historical flights. Data through May 2026.
What the data says
Thursdays have been rough.
DL 325 arrived on time 71% of the time on Saturdays and just 50% on Thursdays. That gap is worth planning around.
Lagging the ATL–DCA route.
DL 325 arrived on time 57% of the time, versus 70% across the ATL–DCA route.
Well behind the Delta Air Lines network.
DL 325 arrived on time 57% of the time, versus 81% across the Delta Air Lines network.
Keep a backup plan handy.
DL 325 was cancelled 3.0% of the time. Typical for U.S. flights is around 1–2%.
The breakdown
- Mon56%(50 flights)
- Tue56%(52 flights)
- Wed58%(52 flights)
- Thu50%(48 flights)
- Fri54%(46 flights)
- Sat71%(52 flights)
- Sun54%(46 flights)
48%
May
Jun 42% → May 48% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 42% | 24 |
| July 2025 | 42% | 26 |
| August 2025 | 61% | 31 |
| September 2025 | 70% | 30 |
| October 2025 | 74% | 31 |
| November 2025 | 67% | 27 |
| December 2025 | 47% | 30 |
| January 2026 | 48% | 29 |
| February 2026 | 59% | 27 |
| March 2026 | 47% | 30 |
| April 2026 | 77% | 30 |
| May 2026 | 48% | 31 |
- Departures on time
- 71%
- Diverted
- 1.4%
- Flights flown
- 346
- Months covered
- 12
Same route, other flights
Keep nerding
Based on 362 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.