Flight Reliability
AS 744 · Alaska Airlines
Seattle → Phoenix (SEA–PHX)94% of its flights flew this route. The rest (SLC–SEA) are included in these numbers.
83
Pretty Reliable
WanderNerd Reliability Score
- 75%
- Arrive within 15 minutes
- 7 min
- Average arrival delay
- 0%
- Cancelled
- 1 min early
- Median arrival delay
Based on 343 historical flights. Data through May 2026.
What the data says
Thursdays have been rough.
AS 744 arrived on time 88% of the time on Saturdays and just 66% on Thursdays. That gap is worth planning around.
A bit behind the SEA–PHX route.
AS 744 arrived on time 75% of the time, versus 80% across the SEA–PHX route.
A bit behind the Alaska Airlines network.
AS 744 arrived on time 75% of the time, versus 80% across the Alaska Airlines network.
It basically never cancels.
Out of 343 scheduled flights, only 0.0% were cancelled.
The breakdown
- Mon70%(50 flights)
- Tue74%(49 flights)
- Wed74%(50 flights)
- Thu66%(50 flights)
- Fri67%(46 flights)
- Sat88%(48 flights)
- Sun84%(50 flights)
87%
May
Jun 68% → May 87% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 68% | 19 |
| July 2025 | 45% | 31 |
| August 2025 | 52% | 31 |
| September 2025 | 87% | 30 |
| October 2025 | 81% | 31 |
| November 2025 | 69% | 29 |
| December 2025 | 69% | 29 |
| January 2026 | 83% | 30 |
| February 2026 | 80% | 25 |
| March 2026 | 89% | 28 |
| April 2026 | 86% | 29 |
| May 2026 | 87% | 31 |
- Departures on time
- 75%
- Diverted
- 0%
- Flights flown
- 343
- Months covered
- 12
Same route, other flights
Keep nerding
Based on 343 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.