Flight Reliability
AS 237 · Alaska Airlines
Seattle → Lihue (SEA–LIH)94% of its flights flew this route. The rest (JFK–SFO) are included in these numbers.
70
Usually Fine
WanderNerd Reliability Score
- 74%
- Arrive within 15 minutes
- 2 min early
- Average arrival delay
- 0.5%
- Cancelled
- 8 min early
- Median arrival delay
Based on 186 historical flights. Data through May 2026.
What the data says
The late departure is the smart one here.
AS 237 departing between 6–9 PM arrived on time 78% of the time, versus 60% between 12–3 PM.
Mondays have been rough.
AS 237 arrived on time 85% of the time on Wednesdays and just 63% on Mondays. That gap is worth planning around.
A bit behind the Alaska Airlines network.
AS 237 arrived on time 74% of the time, versus 80% across the Alaska Airlines network.
The breakdown
- Mon63%(27 flights)
- Tue79%(24 flights)
- Wed85%(26 flights)
- Thu75%(24 flights)
- Fri65%(26 flights)
- Sat73%(26 flights)
- Sun82%(27 flights)
- 12–3 PM60%(10 flights)
- 3–6 PM73%(80 flights)
- 6–9 PM78%(90 flights)
87%
May
Jun 60% → May 87% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 60% | 10 |
| December 2025 | 64% | 14 |
| January 2026 | 77% | 31 |
| February 2026 | 79% | 28 |
| March 2026 | 54% | 28 |
| April 2026 | 87% | 30 |
| May 2026 | 87% | 31 |
- Departures on time
- 75%
- Diverted
- 2.7%
- Flights flown
- 180
- Months covered
- 8
Same route, other flights
Keep nerding
Based on 186 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.