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Flight Reliability

DL 2998 · Delta Air Lines

Salt Lake City → Seattle (SLC–SEA)

98
Nerd Approved
WanderNerd Reliability Score
90%
Arrive within 15 minutes
5 min early
Average arrival delay
0%
Cancelled
14 min early
Median arrival delay

Based on 277 historical flights. Data through May 2026.

What the data says

The late departure is the smart one here.

DL 2998 departing between 9 PM–12 AM arrived on time 90% of the time, versus 82% between 6–9 PM.

Saturdays have been rough.

DL 2998 arrived on time 96% of the time on Mondays and just 78% on Saturdays. That gap is worth planning around.

Better than the SLC–SEA route average.

DL 2998 arrived on time 90% of the time, versus 80% across the SLC–SEA route.

Better than the Delta Air Lines network average.

DL 2998 arrived on time 90% of the time, versus 81% across the Delta Air Lines network.

The breakdown

On-time by weekday
  • Mon96%(48 flights)
  • Tue85%(34 flights)
  • Wed94%(34 flights)
  • Thu89%(47 flights)
  • Fri87%(47 flights)
  • Sat78%(18 flights)
  • Sun90%(49 flights)
On-time by departure window
  • 6–9 PM82%(17 flights)
  • 9 PM–12 AM90%(260 flights)
On-time trend by month
96%
May

Jun 85% → May 96% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202585%26
July 202565%26
August 202594%16
September 2025100%12
October 202588%16
November 2025100%15
December 202587%23
January 202690%31
February 2026100%28
March 202687%31
April 202693%28
May 202696%25
Departures on time
88%
Diverted
0%
Flights flown
277
Months covered
12

Same route, other flights

Keep nerding

Based on 277 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.