Flight Reliability
AS 299 · Alaska Airlines
Newark → Seattle (EWR–SEA)86% of its flights flew this route. The rest (BOS–SEA, SFO–EWR) are included in these numbers.
- 73%
- Arrive within 15 minutes
- 6 min
- Average arrival delay
- 1.5%
- Cancelled
- 2 min early
- Median arrival delay
Based on 327 historical flights. Data through May 2026.
What the data says
Morning-you made the right choice.
AS 299 departing between 9 AM–12 PM arrived on time 82% of the time, versus 67% between 6–9 PM.
Friday is doing you no favors.
AS 299 arrived on time 82% of the time on Wednesdays and just 63% on Fridays. That gap is worth planning around.
Lagging the Alaska Airlines network.
AS 299 arrived on time 73% of the time, versus 80% across the Alaska Airlines network.
Trending in the right direction.
AS 299 arrived on time 77% of the time over the last three months in the data, compared with 58% in the three months before that.
The breakdown
- Mon67%(45 flights)
- Tue72%(47 flights)
- Wed82%(45 flights)
- Thu79%(47 flights)
- Fri63%(46 flights)
- Sat74%(46 flights)
- Sun74%(46 flights)
- 6–9 AM73%(278 flights)
- 9 AM–12 PM82%(11 flights)
- 6–9 PM67%(33 flights)
Jun 83% → May 87% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 83% | 30 |
| July 2025 | 80% | 30 |
| August 2025 | 77% | 30 |
| September 2025 | 90% | 29 |
| October 2025 | 73% | 30 |
| November 2025 | 70% | 30 |
| December 2025 | 30% | 30 |
| February 2026 | 75% | 16 |
| March 2026 | 50% | 30 |
| April 2026 | 93% | 30 |
| May 2026 | 87% | 31 |
- Departures on time
- 86%
- Diverted
- 0%
- Flights flown
- 322
- Months covered
- 12
Same route, other flights
Keep nerding
Based on 327 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.