Skip to content
WanderNerd
Check a flight

Flight Reliability

DL 2514 · Delta Air Lines

Salt Lake City → Houston (SLC–IAH)

78
Usually Fine
WanderNerd Reliability Score
78%
Arrive within 15 minutes
21 min
Average arrival delay
0.3%
Cancelled
6 min early
Median arrival delay

Based on 365 historical flights. Data through May 2026.

What the data says

6–9 PM has a slight edge.

Departures between 6–9 PM arrived on time 84% of the time, against 77% between 3–6 PM.

Skip Tuesday if you can.

DL 2514 arrived on time 81% of the time on Mondays. On Tuesdays: 73%.

Lagging the SLC–IAH route.

DL 2514 arrived on time 78% of the time, versus 85% across the SLC–IAH route.

A bit behind the Delta Air Lines network.

DL 2514 arrived on time 78% of the time, versus 81% across the Delta Air Lines network.

The breakdown

On-time by weekday
  • Mon81%(52 flights)
  • Tue73%(52 flights)
  • Wed75%(52 flights)
  • Thu81%(52 flights)
  • Fri81%(52 flights)
  • Sat79%(52 flights)
  • Sun75%(51 flights)
On-time by departure window
  • 3–6 PM77%(332 flights)
  • 6–9 PM84%(31 flights)
On-time trend by month
77%
May

Jun 73% → May 77% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202573%30
July 202568%31
August 202574%31
September 202583%30
October 202587%31
November 202583%30
December 202568%31
January 202683%30
February 202686%28
March 202670%30
April 202680%30
May 202677%31
Departures on time
78%
Diverted
0.3%
Flights flown
363
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.