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DelayAtlas

Airport month record

MEMAUG

Memphis International in August 2026

Departures
2,105
Month
August 2026
National, same month
73.1%
Carriers
8
BGRADE

Historical statistics for August 2026, not live status or a forecast for this year’s August. For today’s conditions at MEM, see live FAA status.

MEM in August lands a B, 6 points better than the national rate of 73.1%. About one flight in five arrives 15 minutes late or worse, and those flights are late by an hour and a half on average. That rests on 2,105 flights, with a median arrival 10 minutes early.

Set against the rest of the country, MEM's August record is 6 points better than the US average of 73.1%. That gap is worth roughly 56 fewer late arrivals for every thousand flights.

Key figures

On time

78.7%

Arrivals under 15 minutes late, of 2,054 completed departures

Avg delay

89 min

Across delayed arrivals only, not all flights

Cancelled

2.14%

Nationally in August: 1.86%

Whole year

80.0%

MEM across all twelve months

These figures cover 2,105 departures from Memphis International in August 2026. On time means an arrival less than 15 minutes after the scheduled gate time, the DOT's threshold, and the national comparison uses every US departure in the same month rather than the whole year.

Against the year

August next to MEM's other months

Against MEM's own year, August ran about a point worse than the twelve-month rate of 80.0%, which makes it number eight of twelve months, best first.

MEM month by month
MonthFlightsOn timeAvg delayCancelledGrade
September 20252,05987.5%68 min0.19%A+
October 20252,28382.8%64 min0.48%B+
November 20251,99180.0%74 min1.96%B
December 20251,95677.7%83 min1.48%B
January 20261,72779.7%97 min9.50%B−
February 20261,60985.3%73 min1.74%A
March 20262,05377.1%100 min3.60%B−
April 20262,14682.1%84 min0.98%B+
May 20262,22879.8%85 min1.08%B
June 20262,22176.4%88 min2.34%B
July 20262,25974.1%74 min3.01%C−
August 2026 (this page)2,10578.7%89 min2.14%B

Departure window

The best time of day to leave MEM in August

Departure time matters more here than the choice of carrier. The gap between the best and worst window is 29 points, against half a point between the best and worst carrier.

  • 5am–8am651 flights90.9%
  • 8am–11am377 flights83.6%
  • 11am–2pm290 flights81.1%
  • 2pm–5pm354 flights70.1%
  • 5pm–8pm421 flights61.6%
  • 8pm–5am12 flights—

Scale runs 55% to 95%. Rows with fewer than 30 flights show a dash.

The 5pm–8pm window is where this operation falls apart: 61.6% on time, against 90.9% for the 5am–8am slot. By evening the aircraft flying these rotations have absorbed a full day of small delays and there is no slack left to recover in. The 5am–8am window is the busiest, with 651 flights scheduled in it.

Across the week, Monday is the strongest day at 81.5% on time and Friday the weakest at 73.3%, a spread of 8 points.

On-time rate by day of the week81.5Mon80.4Tue80.2Wed78.0Thu73.3Fri80.1Sat77.1Sun
Monday: 81.5 percent on time. Tuesday: 80.4 percent on time. Wednesday: 80.2 percent on time. Thursday: 78.0 percent on time. Friday: 73.3 percent on time. Saturday: 80.1 percent on time. Sunday: 77.1 percent on time

Carrier by carrier

Which airlines ran best at MEM in August

Only one carrier clears this site's 365-flight floor here, so there is no comparison to draw. The table below is the full picture.

Carriers at MEM in August 2026
AirlineFlightsOn timeAvg delayCancelledGrade
Delta Air Lines40186.7%84 min0.50%A+
Southwest Airlinesthin sample36177.5%57 min0.00%B+
Republic Airwaysthin sample29677.2%85 min7.77%B−
SkyWest Airlinesthin sample29178.7%100 min1.03%B
American Airlinesthin sample25682.7%107 min0.78%B+
Envoy Airthin sample17480.9%134 min0.57%B+
PSA Airlinesthin sample16364.5%103 min6.13%D−
United Airlinesthin sample11272.7%88 min0.89%C+

Route by route

Busiest routes out of MEM in August

Routes from MEM in August 2026
RouteFlightsOn timeAvg delayCancelledGrade
MEM to ATL · Atlantathin sample29286.9%94 min0.68%A+
MEM to ORD · Chicagothin sample24165.7%110 min3.32%C−
MEM to DFW · Dallas-Fort Worththin sample20681.6%108 min0.00%B+
MEM to CLT · Charlottethin sample15272.0%81 min1.32%C
MEM to DEN · Denverthin sample13462.1%80 min0.00%D+
MEM to LGA · New Yorkthin sample11981.7%79 min8.40%B−
MEM to MSP · Minneapolisthin sample8787.4%83 min0.00%A+
MEM to DTW · Detroitthin sample8783.9%103 min0.00%B+
MEM to DCA · Washingtonthin sample8367.6%112 min10.84%C−
MEM to IAH · Houstonthin sample7989.7%88 min0.00%A+
MEM to HOU · Houstonthin sample7878.2%79 min0.00%B+
MEM to PHL · Philadelphiathin sample6573.8%156 min4.62%C−
MEM to BNA · Nashvillethin sample6280.6%30 min0.00%B+
MEM to MDW · Chicagothin sample6283.9%40 min0.00%B+
MEM to EWR · Newarkthin sample5978.8%52 min11.86%B−
MEM to DAL · Dallasthin sample3775.7%37 min0.00%B+
MEM to MCO · Orlandothin sample3678.8%53 min8.33%B−
MEM to SLC · Salt Lake Citythin sample3193.5%28 min0.00%A+
MEM to BOS · Bostonthin sample3196.7%174 min0.00%A+
MEM to MIA · Miamithin sample3196.7%23 min3.23%A−

Delay causes

What held MEM up in August

Carriers report a reason for every delay minute they cause, in five DOT categories. The split below is by minutes, not by number of flights, so a handful of very long weather delays weighs as much as many short ones. It covers 39,000 reported delay minutes.

  • Late-arriving aircraft
    34%
  • Carrier
    34%
  • National Airspace System
    27%
  • Extreme weather
    5%
  • Security
    0%

34% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 39,000 reported delay minutes here, that single category outweighs weather by 6 to one. The split is drawn from 38,874 reported delay minutes.

Cancellations sit at 2.14% against a national 1.86%, which is ordinary. Diversions add another 0.29%.

9.2% of arrivals land a full hour or more behind schedule, against 10.9% nationally. Ninety minutes is the honest minimum for a connection here, and two hours if the onward flight is on a separate ticket.

What to do with this

Flying from MEM in August

For a August trip through MEM: expect 78.7% on time and 2.14% cancelled, going by August 2026. The 5am–8am window was the strongest part of the day.

Related

Where to go next

Source: US DOT Bureau of Transportation Statistics, on-time performance data, September 2025 to August 2026. Last updated ; recomputed monthly. How this data is collected.