On-Time Report

Airports › Georgia

Airport · 12 months to July 2026

Hartsfield-Jackson Atlanta International: delays and on-time record

Atlanta, Georgia

77.1%departed on time

BTS: A flight is counted as on time if it arrived less than 15 minutes after its scheduled time. Only carriers with at least 0.5 percent of domestic scheduled passenger revenue report. Data through July 2026; this is a monthly history, not live airport status.

Hartsfield-Jackson Atlanta International (ATL) in Atlanta, Georgia had 315,859 scheduled domestic departures by reporting carriers in the 12 months to July 2026, about 865 a day, on 153 routes.

77.1% of those flights left the gate less than 15 minutes late, 1.0 points above the national departure figure of 76.1%. Flights arriving at ATL were on time 80.7% of the time, 4.7 points above the national arrival figure of 76.0%.

1.8% of scheduled departures were cancelled (national: 1.8%), and the average departure delay, counting early and on-time departures as zero, was 15.1 min.

Delta Air Lines is the largest reporting carrier at ATL with 76% of departures. Among carriers with at least 3,159 departures, United Airlines had the highest on-time arrival share for its ATL departures (78.7%) and Frontier Airlines the lowest (62.6%).

On-time departures are about level with the previous 12 months (77.1%).

Of the delay minutes that carriers assigned to a BTS cause category for flights leaving ATL, air carrier 43%, late-arriving aircraft 31% and national aviation system 21%.

77.1%departures on timenational 76.1%
80.7%arrivals on timenational 76.0%
1.8%departures cancellednational 1.8%
865scheduled departures a day315,859 in 12 months
What happened to every scheduled departure from ATL, judged by arrival at the destination, August 2025 to July 2026.

As origin and as destination, against the nation

MeasureDepartures from ATLArrivals at ATLAll reported flightsATL departures, previous 12 months
Departed on time (less than 15 min late)77.1%79.8%76.1%77.1%
Arrived on time76.6%80.7%76.0%76.6%
Cancelled1.8%1.9%1.8%1.2%
Diverted0.3%0.3%0.3%0.3%
Average departure delay (late minutes only)15.1 min15.3 min17.4 min15.5 min
Arrival delay minutes per 100 flights1,4991,4201,6841,563
Scheduled flights315,859315,8417,043,858326,626

12 months to July 2026. The first column follows flights that left ATL; the second follows flights that landed there. Year on year, on-time departures moved 0.0 pts.

Airlines at ATL

Reporting carrierFlightsShareOn timeAvg arrival delayCancelled
DL Delta Air Lines240,72076%78.3%5.6 min1.7%
F9 Frontier Airlines20,2816%62.6%23.4 min2.3%
WN Southwest Airlines17,4796%75.8%8.0 min1.0%
UA United Airlines7,5952%78.7%7.8 min1.5%
OO SkyWest Airlines6,9552%72.6%21.1 min2.4%
AA American Airlines6,8012%74.6%15.6 min2.0%
NK Spirit Airlines4,5131%69.0%14.9 min3.5%
OH PSA Airlines3,3071%74.5%13.8 min4.8%
YX Republic Airline3,0021%71.6%12.1 min4.7%
B6 JetBlue Airways2,6991%66.9%20.1 min3.9%
AS Alaska Airlines1,3950%76.7%3.8 min0.8%
MQ Envoy Air1,1120%70.6%12.2 min2.4%

Departures from ATL by reporting carrier, ordered by flights; on time means the flight reached its destination less than 15 minutes late. Green is at or above the airport's overall share of 76.6%. Carriers fly different routes at different hours, so the rows are not a like-for-like test.

Busiest routes from ATL

RouteCitiesFlightsOn timeAvg arrival delayCancelled
ATL–LGAAtlanta to New York8,41369.6%13.8 min4.1%
ATL–MCOAtlanta to Orlando8,20869.3%17.7 min1.5%
ATL–FLLAtlanta to Fort Lauderdale7,26569.0%14.4 min2.3%
ATL–DCAAtlanta to Washington6,80067.3%15.9 min3.2%
ATL–DFWAtlanta to Dallas/Fort Worth6,68971.7%15.1 min2.6%
ATL–ORDAtlanta to Chicago6,44068.6%18.3 min2.4%
ATL–MIAAtlanta to Miami6,26870.1%15.1 min1.6%
ATL–EWRAtlanta to Newark6,26569.7%14.6 min3.5%
ATL–TPAAtlanta to Tampa6,14172.6%12.2 min1.3%
ATL–PHLAtlanta to Philadelphia5,74972.6%12.6 min3.2%
ATL–DENAtlanta to Denver5,59577.1%6.3 min1.1%
ATL–BWIAtlanta to Baltimore5,40473.8%10.8 min2.1%
ATL–BOSAtlanta to Boston4,97772.4%10.1 min2.1%
ATL–LAXAtlanta to Los Angeles4,94577.3%5.8 min0.8%
ATL–IAHAtlanta to Houston4,92674.9%7.8 min1.8%
ATL–DTWAtlanta to Detroit4,84876.5%9.1 min0.8%
ATL–LASAtlanta to Las Vegas4,77375.1%8.0 min0.8%
ATL–RDUAtlanta to Raleigh/Durham4,62978.6%6.8 min1.5%
ATL–AUSAtlanta to Austin4,52479.4%1.9 min1.3%
ATL–CLTAtlanta to Charlotte4,38078.7%7.4 min1.7%
ATL–BNAAtlanta to Nashville4,26879.0%6.3 min1.7%
ATL–JFKAtlanta to New York4,24173.2%11.5 min2.6%
ATL–JAXAtlanta to Jacksonville4,04574.7%9.1 min1.5%
ATL–MSYAtlanta to New Orleans4,02579.9%4.5 min1.5%
ATL–IADAtlanta to Washington3,99275.3%12.8 min2.0%
ATL–PBIAtlanta to West Palm Beach/Palm Beach3,79174.5%8.3 min1.5%
ATL–PHXAtlanta to Phoenix3,73274.7%8.7 min0.7%
ATL–STLAtlanta to St. Louis3,68580.7%3.6 min1.5%
ATL–MDWAtlanta to Chicago3,52674.2%10.7 min2.0%
ATL–MSPAtlanta to Minneapolis3,51879.7%4.9 min0.5%
ATL–MEMAtlanta to Memphis3,42179.7%5.2 min1.8%
ATL–CLEAtlanta to Cleveland3,41077.7%6.6 min2.1%
ATL–SFOAtlanta to San Francisco3,35269.3%11.7 min0.7%
ATL–DALAtlanta to Dallas3,35078.9%3.3 min1.8%
ATL–BHMAtlanta to Birmingham3,33482.1%3.0 min1.8%
ATL–SEAAtlanta to Seattle3,27876.1%5.6 min0.6%
ATL–MCIAtlanta to Kansas City3,27281.7%5.2 min1.2%
ATL–CHSAtlanta to Charleston3,22181.6%4.2 min1.7%
ATL–INDAtlanta to Indianapolis3,16381.5%3.4 min1.3%
ATL–CMHAtlanta to Columbus3,15578.9%5.4 min1.5%
ATL–SAVAtlanta to Savannah3,03781.9%3.2 min1.5%
ATL–CVGAtlanta to Cincinnati3,01680.9%4.6 min1.3%
ATL–SATAtlanta to San Antonio3,00079.9%2.5 min1.6%
ATL–SLCAtlanta to Salt Lake City2,96482.3%3.0 min0.5%
ATL–ORFAtlanta to Norfolk2,94177.5%7.1 min1.5%
ATL–HOUAtlanta to Houston2,87979.3%3.8 min1.3%
ATL–GSPAtlanta to Greer2,81882.4%1.9 min1.6%
ATL–RSWAtlanta to Fort Myers2,81775.6%7.8 min1.6%
ATL–PNSAtlanta to Pensacola2,81281.1%4.9 min1.8%
ATL–GSOAtlanta to Greensboro/High Point2,75482.1%2.4 min2.0%
ATL–PITAtlanta to Pittsburgh2,75482.0%3.2 min2.0%
ATL–SDFAtlanta to Louisville2,71783.0%2.4 min1.5%
ATL–RICAtlanta to Richmond2,67479.7%5.3 min2.0%
ATL–ECPAtlanta to Panama City2,42881.7%2.5 min1.9%
ATL–VPSAtlanta to Valparaiso2,39382.4%1.9 min1.7%
ATL–SANAtlanta to San Diego2,37978.2%2.4 min0.6%
ATL–BDLAtlanta to Hartford2,31877.6%7.2 min2.1%
ATL–LITAtlanta to Little Rock2,29483.5%0.8 min2.0%
ATL–SRQAtlanta to Sarasota/Bradenton2,29479.6%5.7 min1.7%
ATL–MKEAtlanta to Milwaukee2,26480.4%3.1 min1.9%
ATL–HSVAtlanta to Huntsville2,23682.2%2.6 min1.9%
ATL–SJUAtlanta to San Juan2,09969.9%14.0 min1.3%
ATL–LEXAtlanta to Lexington2,05583.0%1.3 min1.9%
ATL–AVLAtlanta to Asheville2,01883.7%2.1 min1.1%
ATL–TLHAtlanta to Tallahassee2,00382.1%3.6 min1.7%
ATL–JANAtlanta to Jackson/Vicksburg1,95683.3%0.8 min1.4%
ATL–OKCAtlanta to Oklahoma City1,82179.7%2.3 min2.6%
ATL–CAEAtlanta to Columbia1,81482.1%3.9 min1.5%
ATL–OMAAtlanta to Omaha1,78879.0%4.8 min1.6%
ATL–TYSAtlanta to Knoxville1,71781.4%2.5 min1.7%
ATL–GNVAtlanta to Gainesville1,59183.2%0.6 min1.9%
ATL–TULAtlanta to Tulsa1,57682.8%1.1 min2.2%
ATL–PDXAtlanta to Portland1,55278.2%5.0 min0.9%
ATL–BUFAtlanta to Buffalo1,52175.6%9.4 min2.0%
ATL–SHVAtlanta to Shreveport1,51773.0%20.9 min2.6%
ATL–MYRAtlanta to Myrtle Beach1,51379.8%3.3 min2.0%
ATL–EYWAtlanta to Key West1,46081.0%4.5 min1.4%
ATL–DABAtlanta to Daytona Beach1,45584.8%1.0 min1.8%
ATL–MLBAtlanta to Melbourne1,44982.6%2.1 min1.3%
ATL–GRRAtlanta to Grand Rapids1,42682.1%4.7 min1.5%
ATL–DAYAtlanta to Dayton1,40283.5%-0.1 min1.9%
ATL–CHAAtlanta to Chattanooga1,33580.4%3.3 min2.3%
ATL–GPTAtlanta to Gulfport/Biloxi1,31781.9%3.1 min1.6%
ATL–DSMAtlanta to Des Moines1,25182.6%0.7 min2.4%
ATL–ICTAtlanta to Wichita1,15084.7%-1.1 min1.3%
ATL–ILMAtlanta to Wilmington1,14983.5%0.2 min1.0%
ATL–PVDAtlanta to Providence1,13475.3%9.1 min2.6%
ATL–SYRAtlanta to Syracuse1,10878.9%5.2 min2.2%
ATL–XNAAtlanta to Fayetteville1,09876.9%15.7 min1.9%
ATL–BTRAtlanta to Baton Rouge1,08081.3%1.3 min1.9%
ATL–ALBAtlanta to Albany1,04476.9%9.7 min2.2%
ATL–ROCAtlanta to Rochester1,04175.3%7.6 min2.3%
ATL–SNAAtlanta to Santa Ana1,03374.6%6.9 min0.9%
ATL–MSNAtlanta to Madison1,02982.6%2.5 min2.1%
ATL–SBNAtlanta to South Bend1,02972.4%21.3 min1.9%
ATL–SMFAtlanta to Sacramento1,01081.1%3.1 min1.2%
ATL–MDTAtlanta to Harrisburg1,00279.4%5.2 min2.2%
ATL–ABQAtlanta to Albuquerque99783.0%-0.6 min1.5%
ATL–ONTAtlanta to Ontario93774.0%7.1 min1.7%
ATL–MOBAtlanta to Mobile90577.6%9.2 min2.0%
ATL–SJCAtlanta to San Jose90184.8%-1.3 min1.3%
ATL–TUSAtlanta to Tucson80980.8%3.7 min1.9%
ATL–ELPAtlanta to El Paso72477.8%5.7 min1.9%
ATL–STTAtlanta to Charlotte Amalie71975.2%7.3 min1.1%
ATL–HPNAtlanta to White Plains71774.5%7.7 min2.6%
ATL–PWMAtlanta to Portland64274.6%8.5 min1.1%
ATL–AGSAtlanta to Augusta63678.3%13.7 min2.5%
ATL–OAJAtlanta to Jacksonville/Camp Lejeune62172.3%27.0 min2.7%
ATL–SGFAtlanta to Springfield59178.3%6.5 min1.2%
ATL–COSAtlanta to Colorado Springs58978.6%4.8 min1.5%
ATL–BOIAtlanta to Boise54580.4%3.6 min1.3%
ATL–GEGAtlanta to Spokane53879.6%1.7 min1.1%
ATL–FWAAtlanta to Fort Wayne52279.9%9.8 min3.3%
ATL–TRIAtlanta to Bristol/Johnson City/Kingsport52080.4%9.9 min1.0%
ATL–ASEAtlanta to Aspen45068.0%15.2 min1.6%
ATL–ROAAtlanta to Roanoke43276.9%9.0 min1.9%
ATL–BZNAtlanta to Bozeman42979.0%4.3 min1.4%
ATL–BTVAtlanta to Burlington39173.7%5.4 min1.8%
ATL–HNLAtlanta to Honolulu38377.3%1.1 min0.5%
ATL–CIDAtlanta to Cedar Rapids/Iowa City36773.6%13.1 min1.6%
ATL–ATWAtlanta to Appleton36677.0%7.5 min1.9%
ATL–GRBAtlanta to Green Bay36674.3%5.8 min1.9%
ATL–FSDAtlanta to Sioux Falls36577.0%7.4 min0.8%
ATL–BURAtlanta to Burbank36472.5%9.1 min3.3%
ATL–RNOAtlanta to Reno30869.2%12.0 min1.0%
ATL–ABYAtlanta to Albany30777.5%14.8 min2.0%
ATL–CHOAtlanta to Charlottesville23579.6%5.7 min2.6%
ATL–CRWAtlanta to Charleston/Dunbar23563.8%30.5 min4.7%
ATL–JACAtlanta to Jackson20971.8%8.2 min2.4%
ATL–FARAtlanta to Fargo20954.1%39.3 min1.9%
ATL–HHHAtlanta to Hilton Head19778.7%11.7 min0.0%
ATL–PSPAtlanta to Palm Springs18785.0%-4.7 min1.6%
ATL–MGMAtlanta to Montgomery18682.8%19.0 min0.0%
ATL–EGEAtlanta to Eagle18675.3%6.4 min0.5%
ATL–LFTAtlanta to Lafayette17776.3%16.1 min4.5%
ATL–SBAAtlanta to Santa Barbara17061.2%37.4 min1.8%
ATL–ANCAtlanta to Anchorage15765.0%14.8 min1.3%
ATL–OGGAtlanta to Kahului12884.4%-7.7 min2.3%
ATL–STXAtlanta to Christiansted12665.9%12.5 min0.8%

The 139 busiest of 153 routes with reported flights. Routes with at least 10 flights a month have their own page.

Month by month

100%columns start at 40%
Share of scheduled departures from ATL that left less than 15 minutes late, Aug 2023 to Jul 2026. Green columns are at or above the national figure for that month (the dark tick), amber below it, red more than eight points below.
Aug 2023Sep 2023Oct 2023Nov 2023Dec 2023Jan 2024Feb 2024Mar 2024Apr 2024May 2024Jun 2024Jul 2024Aug 2024Sep 2024Oct 2024Nov 2024Dec 2024Jan 2025Feb 2025Mar 2025Apr 2025May 2025Jun 2025Jul 2025Aug 2025Sep 2025Oct 2025Nov 2025Dec 2025Jan 2026Feb 2026Mar 2026Apr 2026May 2026Jun 2026Jul 2026

By scheduled departure hour

On-time share:under 62%6270768288% and over
Share of departures that left less than 15 minutes late, by scheduled hour (local time at ATL), 12 months to July 2026.

Among hours with at least 6,317 departures, 8 am to 9 am had the highest on-time share (87.8% of 24,098 flights) and 8 pm to 9 pm the lowest (67.6% of 16,247).

Delay causes

BTS cause categoryShare of delay minutesNationalMinutes
Air carrier42.5%33.3%1,878,384
Late-arriving aircraft30.5%39.7%1,348,499
National Aviation System21.3%20.7%943,161
Extreme weather5.5%6.1%240,900
Security0.2%0.1%7,572
4,418,516 delay minutes on 67,331 flights that arrived 15 or more minutes late and carried a cause report. Carriers assign the categories; see what each category means.

Cancellations by reported reason (5,697 in the period): air carrier 53%, weather 41%, national aviation system 5%, security 0%.

Checkpoint volumes

TSA publishes daily checkpoint passenger counts for the country as a whole, not for ATL on its own. The national series through September 2026 is on the checkpoint volumes page.

Questions and answers

How often do flights leave ATL on time?

77.1% of the 315,859 scheduled domestic departures in the 12 months to July 2026 left less than 15 minutes late; the national figure was 76.1%. 1.8% were cancelled.

How often do flights arrive at ATL on time?

80.7% of 315,841 scheduled arrivals were on time by the BTS definition, against 76.0% nationally.

Which airline has the highest on-time share at ATL?

Counting departures from ATL and whether they reached their destination on time, United Airlines had the highest share (78.7% of 7,595 flights), then Delta Air Lines (78.3%) and Southwest Airlines (75.8%). Carriers fly different routes at different hours, so the figures are not a like-for-like test.

What causes delays at ATL?

For departures from ATL that reached their destination 15 or more minutes late, carriers attributed the delay minutes as follows: air carrier 43%, late-arriving aircraft 31%, national aviation system 21%, extreme weather 6%, security 0%.

What time of day has the highest on-time share at ATL?

Departures scheduled from 8 am to 9 am local time left on time 87.8% of the time, the highest of any hour with enough flights to compare; 8 pm to 9 pm was lowest at 67.6%.

Is it getting better?

On-time departures for the 12 months to July 2026 were 77.1%, about level with the previous 12 months (77.1%). The monthly chart shows each of the last 36 months, and each month has its own page.

Does this page show today's delays at ATL?

No. BTS publishes on-time records about two months after the month ends, so this page is a monthly history through July 2026. For live conditions use the FAA airport status service or your airline.

Provenance

Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance (1987 to present), monthly files August 2023 to July 2026; airport name from the BTS airport lookup table. US government works in the public domain. Domestic scheduled flights by reporting carriers only: international flights, charters and smaller carriers are not in the source. Totals and averages only; no individual flight or aircraft is identified. See the methodology; report processing errors through corrections.