Flight Reliability
DL 2041 · Delta Air Lines
Chicago → Seattle (ORD–SEA)
76
Usually Fine
WanderNerd Reliability Score
- 76%
- Arrive within 15 minutes
- 9 min
- Average arrival delay
- 1.4%
- Cancelled
- 2 min early
- Median arrival delay
Based on 365 historical flights. Data through May 2026.
What the data says
Thursday comes out ahead.
A small edge: 78% on time on Thursdays against 73% on Sundays.
A bit ahead of the ORD–SEA route.
DL 2041 arrived on time 76% of the time, versus 70% across the ORD–SEA route.
A bit behind the Delta Air Lines network.
DL 2041 arrived on time 76% of the time, versus 81% across the Delta Air Lines network.
Trending in the right direction.
DL 2041 arrived on time 76% of the time over the last three months in the data, compared with 59% in the three months before that.
The breakdown
- Mon75%(51 flights)
- Tue75%(51 flights)
- Wed75%(52 flights)
- Thu78%(51 flights)
- Fri77%(51 flights)
- Sat78%(51 flights)
- Sun73%(51 flights)
87%
May
Jun 83% → May 87% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 83% | 30 |
| July 2025 | 94% | 31 |
| August 2025 | 84% | 31 |
| September 2025 | 90% | 30 |
| October 2025 | 84% | 31 |
| November 2025 | 66% | 29 |
| December 2025 | 55% | 31 |
| January 2026 | 58% | 31 |
| February 2026 | 63% | 27 |
| March 2026 | 52% | 27 |
| April 2026 | 90% | 29 |
| May 2026 | 87% | 31 |
- Departures on time
- 87%
- Diverted
- 0.5%
- Flights flown
- 358
- Months covered
- 12
Same route, other flights
Keep nerding
Based on 365 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.