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Route Reliability

Atlanta → Sacramento

ATL–SMF · 2,092 miles · Hartsfield–Jackson Atlanta International Airport to Sacramento International Airport

84
Pretty Reliable
WanderNerd Reliability Score
82%
Arrive within 15 minutes
3 min
Average arrival delay
1.5%
Cancelled
1,009
Flights in the data

Data through May 2026.

Delta Air Lines is the only airline in this data on this route, arriving on time 82% of the time across 1,009 flights. No comparison to make.

What the data says

Morning flights do better here.

ATL–SMF flights departing between 9 AM–12 PM arrived on time 89% of the time, versus 73% between 3–6 PM.

Sunday scaries are real for this one.

ATL–SMF flights arrived on time 88% of the time on Wednesdays. On Sundays: 79%.

Best historical flights

Ranked by on-time arrivals, minimum 100 flights. Past performance, not a promise.

Top flights by on-time rate

The breakdown

On-time by weekday
  • Mon80%(147 flights)
  • Tue81%(151 flights)
  • Wed88%(149 flights)
  • Thu82%(147 flights)
  • Fri85%(149 flights)
  • Sat84%(105 flights)
  • Sun79%(145 flights)
On-time by departure window
  • 6–9 AM—(4 flights)
  • 9 AM–12 PM89%(353 flights)
  • 3–6 PM73%(198 flights)
  • 6–9 PM81%(412 flights)
  • 9 PM–12 AM89%(26 flights)
On-time trend by month
81%
May

Jun 71% → May 81% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202571%84
July 202578%87
August 202579%82
September 202591%76
October 202586%85
November 202584%74
December 202579%86
January 202691%84
February 202682%78
March 202682%85
April 202686%85
May 202681%87

Keep nerding

Based on 1,009 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.