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Flight Reliability

AS 3344 · Alaska Airlines

Salt Lake City → Seattle (SLC–SEA)83% of its flights flew this route. The rest (SEA–PDX, PDX–SJC) are included in these numbers.

89
Pretty Reliable
WanderNerd Reliability Score
87%
Arrive within 15 minutes
1 min early
Average arrival delay
0%
Cancelled
7 min early
Median arrival delay

Based on 266 historical flights. Data through May 2026.

What the data says

The 6–9 AM departure wins.

AS 3344 departing between 6–9 AM arrived on time 94% of the time, versus 27% between 9 AM–12 PM.

Skip Thursday if you can.

AS 3344 arrived on time 93% of the time on Mondays. On Thursdays: 82%.

Better than the SLC–SEA route average.

AS 3344 arrived on time 87% of the time, versus 80% across the SLC–SEA route.

Better than the Alaska Airlines network average.

AS 3344 arrived on time 87% of the time, versus 80% across the Alaska Airlines network.

The breakdown

On-time by weekday
  • Mon93%(40 flights)
  • Tue89%(37 flights)
  • Wed89%(35 flights)
  • Thu82%(38 flights)
  • Fri87%(38 flights)
  • Sat86%(35 flights)
  • Sun87%(39 flights)
On-time by departure window
  • 6–9 AM94%(203 flights)
  • 9 AM–12 PM27%(15 flights)
  • 3–6 PM75%(32 flights)
  • 9 PM–12 AM92%(12 flights)
On-time trend by month
100%
Apr

Jun 79% → Apr 100% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202579%29
July 202597%31
August 202597%31
September 2025100%29
October 202584%31
November 202586%29
December 202555%29
March 202693%14
April 2026100%26
Departures on time
93%
Diverted
1.5%
Flights flown
262
Months covered
11

Same route, other flights

Keep nerding

Based on 266 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.