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Flight Reliability

DL 2186 · Delta Air Lines

Seattle → Fairbanks (SEA–FAI)

76
Usually Fine
WanderNerd Reliability Score
80%
Arrive within 15 minutes
8 min
Average arrival delay
3.0%
Cancelled
6 min early
Median arrival delay

Based on 365 historical flights. Data through May 2026.

What the data says

Thursdays have been rough.

DL 2186 arrived on time 85% of the time on Tuesdays and just 68% on Thursdays. That gap is worth planning around.

Keep a backup plan handy.

DL 2186 was cancelled 3.0% of the time. Typical for U.S. flights is around 1–2%.

Trending in the right direction.

DL 2186 arrived on time 79% of the time over the last three months in the data, compared with 67% in the three months before that.

The breakdown

On-time by weekday
  • Mon82%(50 flights)
  • Tue85%(52 flights)
  • Wed80%(51 flights)
  • Thu68%(50 flights)
  • Fri76%(49 flights)
  • Sat84%(50 flights)
  • Sun83%(52 flights)
On-time by departure window
  • 6–9 PM—(3 flights)
  • 9 PM–12 AM80%(351 flights)
On-time trend by month
65%
May

Jun 80% → May 65% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202580%30
July 202577%30
August 202584%31
September 202593%30
October 202587%31
November 202593%30
December 202539%28
January 202681%26
February 202682%27
March 202683%30
April 202690%30
May 202665%31
Departures on time
83%
Diverted
0%
Flights flown
354
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.