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Flight Reliability

DL 2861 · Delta Air Lines

Seattle → Los Angeles (SEA–LAX)

88
Pretty Reliable
WanderNerd Reliability Score
80%
Arrive within 15 minutes
8 min
Average arrival delay
0%
Cancelled
7 min early
Median arrival delay

Based on 365 historical flights. Data through May 2026.

What the data says

Sunday scaries are real for this one.

DL 2861 arrived on time 92% of the time on Mondays and just 72% on Sundays. That gap is worth planning around.

A bit behind the SEA–LAX route.

DL 2861 arrived on time 80% of the time, versus 84% across the SEA–LAX route.

It basically never cancels.

Out of 365 scheduled flights, only 0.0% were cancelled.

The breakdown

On-time by weekday
  • Mon92%(52 flights)
  • Tue83%(52 flights)
  • Wed79%(52 flights)
  • Thu79%(52 flights)
  • Fri73%(52 flights)
  • Sat81%(52 flights)
  • Sun72%(53 flights)
On-time by departure window
  • 3–6 PM80%(357 flights)
  • 6–9 PM—(8 flights)
On-time trend by month
71%
May

Jun 83% → May 71% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202583%30
July 202581%31
August 202584%31
September 202593%30
October 202565%31
November 202587%30
December 202571%31
January 202684%31
February 202679%28
March 202684%31
April 202677%30
May 202671%31
Departures on time
81%
Diverted
0%
Flights flown
365
Months covered
12

Same route, other flights

Keep nerding

Based on 365 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.