Flight Reliability
AS 407 · Alaska Airlines
Chicago → Seattle (ORD–SEA)
71
Usually Fine
WanderNerd Reliability Score
- 70%
- Arrive within 15 minutes
- 13 min
- Average arrival delay
- 1.1%
- Cancelled
- 1 min
- Median arrival delay
Based on 358 historical flights. Data through May 2026.
What the data says
Friday is doing you no favors.
AS 407 arrived on time 76% of the time on Thursdays and just 61% on Fridays. That gap is worth planning around.
Lagging the Alaska Airlines network.
AS 407 arrived on time 70% of the time, versus 80% across the Alaska Airlines network.
The breakdown
- Mon74%(50 flights)
- Tue69%(52 flights)
- Wed67%(52 flights)
- Thu76%(50 flights)
- Fri61%(51 flights)
- Sat72%(50 flights)
- Sun71%(48 flights)
81%
May
Jun 70% → May 81% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 70% | 30 |
| July 2025 | 65% | 31 |
| August 2025 | 68% | 31 |
| September 2025 | 86% | 29 |
| October 2025 | 48% | 29 |
| November 2025 | 58% | 24 |
| December 2025 | 63% | 30 |
| January 2026 | 70% | 30 |
| February 2026 | 93% | 28 |
| March 2026 | 57% | 30 |
| April 2026 | 80% | 30 |
| May 2026 | 81% | 31 |
- Departures on time
- 72%
- Diverted
- 0.3%
- Flights flown
- 353
- Months covered
- 12
Same route, other flights
Keep nerding
Based on 358 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.