BTS DATA COMPLETE THROUGH JUNE 2026HISTORICAL ODDS · NOT LIVE FLIGHT STATUS
DelayOddsKnow the route before you book
RDU→SLC

Raleigh/Durham, NC (RDU) to Salt Lake City, UT (SLC) flight delay odds

81.6% of 412 official scheduled RDU-to-SLC flights arrived on time; 9.5% arrived at least 30 minutes late and 1.2% were cancelled during July 2025–June 2026.

Source: U.S. Bureau of Transportation Statistics · Reporting window: July 2025–June 2026 · Updated September 16, 2026

HISTORICAL ROUTE SIGNALLower disruption
81.6%arrived on time
9.5%30+ min late
1.2%cancelled
412scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late5.3%all scheduled flights
120+ minutes late2.2%all scheduled flights
Diverted0.2%did not reach as scheduled
Average arrival+3.4 mincompleted flights

Which departure time was most reliable for RDU to SLC?

Among qualifying RDU-to-SLC departure window results, Early morning had the highest on-time rate: 84.4% of 231 flights. Evening was lowest at 77.8% across 176 flights.

Departure windowFlightsOn time30+ minCancelled
Early morning23184.4%7.8%2.2%
Evening17677.8%11.9%0.0%

Which weekday was most reliable for RDU to SLC?

Among qualifying RDU-to-SLC weekday results, Thursday had the highest on-time rate: 87.7% of 57 flights. Sunday was lowest at 73.8% across 61 flights.

DayFlightsOn time30+ minCancelled
Monday5981.4%3.4%1.7%
Tuesday6185.2%9.8%0.0%
Wednesday5882.8%8.6%0.0%
Thursday5787.7%5.3%0.0%
Friday5879.3%13.8%1.7%
Saturday5881.0%13.8%0.0%
Sunday6173.8%11.5%4.9%

Which airline was most reliable for RDU to SLC?

Only Delta Air Lines met the RDU-to-SLC airline threshold: 81.6% of 412 scheduled flights arrived on time during July 2025–June 2026.

AirlineFlightsOn time30+ minCancelled
Delta Air Lines41281.6%9.5%1.2%

Which month was most reliable for RDU to SLC?

Among qualifying RDU-to-SLC month results, March 2026 had the highest on-time rate: 93.5% of 31 flights. December 2025 was lowest at 63.2% across 38 flights.

MonthFlightsOn time30+ minCancelled
July 20256076.7%20.0%0.0%
August 20254185.4%9.8%2.4%
September 20253083.3%13.3%0.0%
October 20253086.7%0.0%0.0%
November 20253076.7%6.7%0.0%
December 20253863.2%18.4%0.0%
January 20263381.8%6.1%6.1%
February 20262875.0%10.7%3.6%
March 20263193.5%3.2%3.2%
April 20263093.3%3.3%0.0%
May 20263187.1%3.2%0.0%
June 20263083.3%6.7%0.0%

What drove RDU to SLC delay minutes?

Airline was the largest recorded RDU-to-SLC delay category, accounting for 42.8% of 4,617 BTS-attributed delay minutes during July 2025–June 2026.

Airline42.8%
Late aircraft33.4%
National airspace16.4%
Weather7.3%
Security0.0%
This is historical evidence, not a forecast.

Weather, schedules and operations change. For a trip you have already booked, use the airline or airport for live status.