Flight Reliability
AS 7 · Alaska Airlines
Washington → San Francisco (DCA–SFO)
70
Usually Fine
WanderNerd Reliability Score
- 70%
- Arrive within 15 minutes
- 12 min
- Average arrival delay
- 1.1%
- Cancelled
- 4 min early
- Median arrival delay
Based on 363 historical flights. Data through May 2026.
What the data says
Sunday scaries are real for this one.
AS 7 arrived on time 86% of the time on Saturdays and just 62% on Sundays. That gap is worth planning around.
A bit behind the DCA–SFO route.
AS 7 arrived on time 70% of the time, versus 76% across the DCA–SFO route.
Lagging the Alaska Airlines network.
AS 7 arrived on time 70% of the time, versus 80% across the Alaska Airlines network.
Slipping a little lately.
AS 7 arrived on time 65% of the time over the last three months in the data, compared with 71% in the three months before that.
The breakdown
- Mon70%(50 flights)
- Tue79%(52 flights)
- Wed62%(52 flights)
- Thu66%(50 flights)
- Fri65%(51 flights)
- Sat86%(50 flights)
- Sun62%(52 flights)
52%
May
Jun 57% → May 52% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 57% | 28 |
| July 2025 | 50% | 30 |
| August 2025 | 81% | 31 |
| September 2025 | 83% | 30 |
| October 2025 | 74% | 31 |
| November 2025 | 86% | 29 |
| December 2025 | 65% | 31 |
| January 2026 | 83% | 29 |
| February 2026 | 64% | 28 |
| March 2026 | 71% | 31 |
| April 2026 | 71% | 28 |
| May 2026 | 52% | 31 |
- Departures on time
- 69%
- Diverted
- 0.6%
- Flights flown
- 357
- Months covered
- 12
Same route, other flights
Keep nerding
Based on 363 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.