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Flight Reliability

DL 888 · Delta Air Lines

Portland → Atlanta (PDX–ATL)

95
Nerd Approved
WanderNerd Reliability Score
92%
Arrive within 15 minutes
7 min early
Average arrival delay
0.6%
Cancelled
11 min early
Median arrival delay

Based on 333 historical flights. Data through May 2026.

What the data says

Friday has been the better bet.

A small edge: 96% on time on Fridays against 89% on Saturdays.

A bit ahead of the PDX–ATL route.

DL 888 arrived on time 92% of the time, versus 88% across the PDX–ATL route.

Better than the Delta Air Lines network average.

DL 888 arrived on time 92% of the time, versus 81% across the Delta Air Lines network.

Ticking up lately.

DL 888 arrived on time 97% of the time over the last three months in the data, compared with 94% in the three months before that.

The breakdown

On-time by weekday
  • Mon90%(51 flights)
  • Tue94%(49 flights)
  • Wed92%(47 flights)
  • Thu90%(49 flights)
  • Fri96%(48 flights)
  • Sat89%(37 flights)
  • Sun92%(48 flights)
On-time by departure window
  • 12–3 PM—(2 flights)
  • 9 PM–12 AM92%(327 flights)
On-time trend by month
94%
May

Jun 76% → May 94% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202576%25
July 202574%23
August 202597%29
September 202597%30
October 202597%30
November 202586%29
December 202586%28
January 202695%21
February 2026100%24
March 2026100%29
April 202697%30
May 202694%31
Departures on time
88%
Diverted
0.6%
Flights flown
329
Months covered
12

Same route, other flights

Keep nerding

Based on 333 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.