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Route Reliability

Miami → Atlanta

MIA–ATL · 594 miles · Miami International Airport to Hartsfield–Jackson Atlanta International Airport

71
Usually Fine
WanderNerd Reliability Score
73%
Arrive within 15 minutes
16 min
Average arrival delay
1.5%
Cancelled
6,240
Flights in the data

Data through May 2026.

Who flies it best

Ranked by on-time arrivals. Historical results, not predictions.

  1. 1.Delta Air Lines76%3,313 flights
  2. 2.Spirit Airlines74%287 flights
  3. 3.Frontier Airlines72%823 flights
  4. 4.American Airlines69%1,817 flights

What the data says

Morning-you made the right choice.

MIA–ATL flights departing between 3–6 AM arrived on time 91% of the time, versus 59% between 6–9 PM.

Sunday scaries are real for this one.

MIA–ATL flights arrived on time 79% of the time on Wednesdays and just 63% on Sundays. That gap is worth planning around.

Delta Air Lines has a slight edge here.

Delta Air Lines arrived on time 76% of the time on this route; American Airlines managed 69%.

Best historical flights

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

Top flights by on-time rate

More flights on this route

The breakdown

On-time by weekday
  • Mon72%(900 flights)
  • Tue79%(817 flights)
  • Wed79%(805 flights)
  • Thu78%(916 flights)
  • Fri74%(911 flights)
  • Sat69%(844 flights)
  • Sun63%(938 flights)
On-time by departure window
  • 3–6 AM91%(285 flights)
  • 6–9 AM89%(1437 flights)
  • 9 AM–12 PM81%(591 flights)
  • 12–3 PM74%(1059 flights)
  • 3–6 PM62%(1200 flights)
  • 6–9 PM59%(1067 flights)
  • 9 PM–12 AM63%(492 flights)
On-time trend by month
74%
May

Jun 65% → May 74% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202565%490
July 202562%508
August 202565%492
September 202579%419
October 202579%481
November 202576%485
December 202576%570
January 202676%533
February 202678%488
March 202671%546
April 202677%571
May 202674%548

Same trip, other airports

Keep nerding

Based on 6,240 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.