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WanderNerd

Flight Reliability

DL 3626 · Delta Air Lines

Santa Ana → Las Vegas (SNALAS)86% of its flights flew this route. The rest (MSP–ORD, ORD–MSP) are included in these numbers.

86
Pretty Reliable
WanderNerd Reliability Score
83%
Arrive within 15 minutes
3 min
Average arrival delay
1.4%
Cancelled
11 min early
Median arrival delay

Based on 222 historical flights. Data through May 2026.

What the data says

The 3–6 PM departure wins.

DL 3626 departing between 3–6 PM arrived on time 88% of the time, versus 69% between 9 AM–12 PM.

Friday is doing you no favors.

DL 3626 arrived on time 97% of the time on Saturdays and just 63% on Fridays. That gap is worth planning around.

Trending in the right direction.

DL 3626 arrived on time 88% of the time over the last three months in the data, compared with 80% in the three months before that.

The breakdown

On-time by weekday
  • Mon78%(32 flights)
  • Tue81%(31 flights)
  • Wed91%(32 flights)
  • Thu81%(32 flights)
  • Fri63%(30 flights)
  • Sat97%(29 flights)
  • Sun91%(33 flights)
On-time by departure window
  • 6–9 AM81%(16 flights)
  • 9 AM–12 PM69%(16 flights)
  • 3–6 PM88%(132 flights)
  • 6–9 PM76%(55 flights)
On-time trend by month
79%
Dec

Jun 75% → Dec 79% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202575%20
July 202589%28
August 202577%31
September 202572%29
October 202590%31
November 202593%29
December 202579%43
Departures on time
83%
Diverted
0%
Flights flown
219
Months covered
8

Based on 222 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.