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Flight Reliability

DL 1022 · Delta Air Lines

Raleigh–Durham → Boston (RDU–BOS)89% of its flights flew this route. The rest (ATL–HDN, HDN–ATL) are included in these numbers.

83
Pretty Reliable
WanderNerd Reliability Score
88%
Arrive within 15 minutes
3 min early
Average arrival delay
3.0%
Cancelled
15 min early
Median arrival delay

Based on 338 historical flights. Data through May 2026.

What the data says

Morning flights do better here.

DL 1022 departing between 9 AM–12 PM arrived on time 89% of the time, versus 82% between 12–3 PM.

Thursday is the weak spot.

DL 1022 arrived on time 95% of the time on Saturdays. On Thursdays: 82%.

Better than the RDU–BOS route average.

DL 1022 arrived on time 88% of the time, versus 79% across the RDU–BOS route.

Better than the Delta Air Lines network average.

DL 1022 arrived on time 88% of the time, versus 81% across the Delta Air Lines network.

The breakdown

On-time by weekday
  • Mon90%(50 flights)
  • Tue86%(51 flights)
  • Wed93%(53 flights)
  • Thu82%(51 flights)
  • Fri90%(51 flights)
  • Sat95%(20 flights)
  • Sun86%(51 flights)
On-time by departure window
  • 9 AM–12 PM89%(293 flights)
  • 12–3 PM82%(33 flights)
  • 9 PM–12 AM—(1 flights)
On-time trend by month
96%
May

Jun 96% → May 96% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202596%24
July 202592%24
August 202596%23
September 202579%28
October 202584%31
November 202585%27
December 202587%39
January 202681%31
February 202686%22
March 202689%27
April 202696%26
May 202696%25
Departures on time
88%
Diverted
0.3%
Flights flown
327
Months covered
12

Same route, other flights

Keep nerding

Based on 338 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.