Flight Reliability
AS 174 · Alaska Airlines
Seattle → Fairbanks (SEA–FAI)
79
Usually Fine
WanderNerd Reliability Score
- 75%
- Arrive within 15 minutes
- 8 min
- Average arrival delay
- 0.6%
- Cancelled
- 0 min
- Median arrival delay
Based on 324 historical flights. Data through May 2026.
What the data says
Friday is doing you no favors.
AS 174 arrived on time 84% of the time on Wednesdays and just 64% on Fridays. That gap is worth planning around.
A bit behind the Alaska Airlines network.
AS 174 arrived on time 75% of the time, versus 80% across the Alaska Airlines network.
Trending in the right direction.
AS 174 arrived on time 88% of the time over the last three months in the data, compared with 69% in the three months before that.
The breakdown
- Mon68%(47 flights)
- Tue76%(46 flights)
- Wed84%(45 flights)
- Thu74%(46 flights)
- Fri64%(45 flights)
- Sat78%(46 flights)
- Sun78%(46 flights)
91%
Apr
Jun 67% → Apr 91% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 67% | 30 |
| July 2025 | 58% | 31 |
| August 2025 | 68% | 31 |
| September 2025 | 90% | 30 |
| October 2025 | 77% | 30 |
| November 2025 | 86% | 29 |
| December 2025 | 40% | 30 |
| January 2026 | 81% | 31 |
| February 2026 | 93% | 28 |
| March 2026 | 80% | 30 |
| April 2026 | 91% | 21 |
- Departures on time
- 82%
- Diverted
- 0.3%
- Flights flown
- 321
- Months covered
- 11
Same route, other flights
Keep nerding
Based on 324 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.