Flight Reliability
AS 1364 · Alaska Airlines
Seattle → Ontario (SEA–ONT)100% of its flights flew this route. The rest (SEA–LAX) are included in these numbers.
82
Pretty Reliable
WanderNerd Reliability Score
- 89%
- Arrive within 15 minutes
- 4 min early
- Average arrival delay
- 3.9%
- Cancelled
- 10 min early
- Median arrival delay
Based on 203 historical flights. Data through May 2026.
What the data says
Friday is doing you no favors.
AS 1364 arrived on time 94% of the time on Mondays. On Fridays: 79%.
A bit ahead of the SEA–ONT route.
AS 1364 arrived on time 89% of the time, versus 83% across the SEA–ONT route.
Better than the Alaska Airlines network average.
AS 1364 arrived on time 89% of the time, versus 80% across the Alaska Airlines network.
Keep a backup plan handy.
AS 1364 was cancelled 3.9% of the time. Typical for U.S. flights is around 1–2%.
The breakdown
- Mon94%(31 flights)
- Tue92%(26 flights)
- Wed92%(25 flights)
- Thu86%(29 flights)
- Fri79%(28 flights)
- Sat92%(24 flights)
- Sun91%(32 flights)
- 6–9 AM89%(194 flights)
- 12–3 PM—(1 flights)
97%
May
Nov 85% → May 97% on time
| Month | On-time percentage | Flights |
|---|---|---|
| November 2025 | 85% | 26 |
| December 2025 | 77% | 30 |
| January 2026 | 95% | 19 |
| February 2026 | 91% | 23 |
| March 2026 | 87% | 31 |
| April 2026 | 97% | 30 |
| May 2026 | 97% | 29 |
- Departures on time
- 88%
- Diverted
- 0%
- Flights flown
- 195
- Months covered
- 9
Same route, other flights
Keep nerding
Based on 203 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.