Skip to content
WanderNerd
Check a flight

Flight Reliability

AS 2457 · Alaska Airlines

Seattle → BIL (SEA–BIL)91% of its flights flew this route. The rest (BIL–SEA) are included in these numbers.

90
Nerd Approved
WanderNerd Reliability Score
90%
Arrive within 15 minutes
5 min early
Average arrival delay
1.2%
Cancelled
12 min early
Median arrival delay

Based on 340 historical flights. Data through May 2026.

What the data says

The late departure is the smart one here.

AS 2457 departing between 6–9 PM arrived on time 94% of the time, versus 84% between 6–9 AM.

Skip Saturday if you can.

AS 2457 arrived on time 96% of the time on Wednesdays. On Saturdays: 84%.

Better than the SEA–BIL route average.

AS 2457 arrived on time 90% of the time, versus 82% across the SEA–BIL route.

Better than the Alaska Airlines network average.

AS 2457 arrived on time 90% of the time, versus 80% across the Alaska Airlines network.

The breakdown

On-time by weekday
  • Mon86%(51 flights)
  • Tue91%(46 flights)
  • Wed96%(44 flights)
  • Thu86%(49 flights)
  • Fri94%(47 flights)
  • Sat84%(45 flights)
  • Sun90%(52 flights)
On-time by departure window
  • 6–9 AM84%(19 flights)
  • 6–9 PM94%(98 flights)
  • 9 PM–12 AM88%(217 flights)
On-time trend by month
90%
May

Jun 73% → May 90% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202573%30
July 202579%29
August 202570%27
September 202586%22
October 2025100%25
November 202592%25
December 202593%30
January 2026100%29
February 2026100%27
March 202693%30
April 202697%30
May 202690%30
Departures on time
88%
Diverted
0.6%
Flights flown
334
Months covered
12

Same route, other flights

Keep nerding

Based on 340 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.