Delta Air Lines (DAL) on-time performance, October 2026
21,900 scheduled Delta Air Lines departures in US airspace in October 2026, 80.3% of them on time. Measured from FAA departure data, updated every morning.
On time, day by day
Share of Delta Air Lines departures within 15 minutes of schedule, by day. Light bars show each day's departures for context. Worst day: Sunday 4 October at 72.6%. Best: Wednesday 7 October at 87.8%.
Airports, ranked by on-time share
Airports with at least 30 Delta Air Lines departures in the month.
| Airport | Departures | On time | 45+ min late | Avg delay (min) |
|---|---|---|---|---|
| SJC San Jose | 75 | 94.7% | 2.7% | -3.4 |
| BOI Boise | 51 | 94.1% | 3.9% | 5.9 |
| OMA Omaha | 32 | 93.8% | 0.0% | -4.9 |
| GRR Grand Rapids | 47 | 93.6% | 2.1% | -2.2 |
| DEN Denver | 229 | 92.6% | 2.6% | -1.9 |
| SMF Sacramento | 65 | 92.3% | 3.1% | 3.2 |
| PHX Phoenix | 193 | 92.2% | 3.6% | -2.1 |
| ABQ Albuquerque | 38 | 92.1% | 2.6% | -1.3 |
| BWI Baltimore | 107 | 91.6% | 2.8% | -0.6 |
| IND Indianapolis | 94 | 91.5% | 1.1% | 2.2 |
| CVG Cincinnati | 146 | 91.1% | 4.8% | 2.5 |
| MKE Milwaukee | 79 | 91.1% | 3.8% | -1.3 |
| SJU San Juan | 45 | 91.1% | 4.4% | 5.0 |
| MSN Madison | 32 | 90.6% | 3.1% | 1.0 |
| LEX Lexington | 42 | 90.5% | 4.8% | 3.8 |
| BDL Windsor Locks | 92 | 90.2% | 4.3% | 4.2 |
| CMH Columbus | 79 | 89.9% | 3.8% | 2.3 |
| STL St. Louis | 97 | 89.7% | 6.2% | 0.8 |
| GSO Greensboro | 47 | 89.4% | 2.1% | -0.3 |
| GEG Spokane | 55 | 89.1% | 1.8% | 3.0 |
| PIT Pittsburgh (Pennsylva) | 63 | 88.9% | 6.3% | 5.3 |
| FLL Fort Lauderdale | 216 | 88.4% | 5.1% | 0.9 |
| IAD Washington | 76 | 88.2% | 6.6% | 1.4 |
| OKC Oklahoma City | 34 | 88.2% | 2.9% | 0.9 |
| PWM Portland | 34 | 88.2% | 2.9% | 4.3 |
| VPS Valparaiso | 49 | 87.8% | 2.0% | 3.9 |
| CLT Charlotte | 110 | 87.3% | 4.5% | 2.3 |
| RSW Fort Myers | 109 | 87.2% | 0.9% | 1.0 |
| FCO Rome | 53 | 86.8% | 3.8% | 3.9 |
| TYS Knoxville | 38 | 86.8% | 5.3% | 2.6 |
| LHR London | 60 | 86.7% | 8.3% | 1.1 |
| BNA Nashville | 193 | 86.5% | 6.2% | 0.7 |
| EWR Newark | 140 | 86.4% | 4.3% | 3.4 |
| AVL Asheville | 43 | 86.0% | 7.0% | 4.5 |
| SAV Savannah | 70 | 85.7% | 1.4% | 3.2 |
| SDF Louisville | 56 | 85.7% | 8.9% | 6.6 |
| RIC Richmond | 55 | 85.5% | 3.6% | 3.8 |
| MCI Kansas City | 173 | 85.0% | 6.9% | 8.1 |
| MSY New Orleans | 126 | 84.9% | 4.8% | 7.6 |
| GSP Greer | 53 | 84.9% | 1.9% | 3.0 |
| DCA Washington | 191 | 84.8% | 4.7% | 1.5 |
| SRQ Sarasota/Bradenton | 46 | 84.8% | 4.3% | 5.8 |
| DUB Dublin | 33 | 84.8% | 0.0% | 2.7 |
| ONT Ontario | 33 | 84.8% | 3.0% | 2.7 |
| RDU Raleigh-Durham | 248 | 84.7% | 7.3% | 5.0 |
| MIA Miami | 201 | 84.1% | 7.0% | 7.5 |
| PDX Portland | 145 | 84.1% | 7.6% | 10.7 |
| SYR Syracuse | 37 | 83.8% | 0.0% | 6.7 |
| DTW Detroit | 1,256 | 83.2% | 6.1% | 7.4 |
| MYR Myrtle Beach | 35 | 82.9% | 2.9% | 3.1 |
| PNS Pensacola | 52 | 82.7% | 1.9% | 4.2 |
| PHL Philadelphia | 131 | 82.4% | 6.9% | 6.1 |
| MCO Orlando | 362 | 82.3% | 9.1% | 7.2 |
| AMS Amsterdam | 110 | 81.8% | 6.4% | 7.8 |
| CHS Charleston | 88 | 81.8% | 9.1% | 7.1 |
| KECP Panama City Beach | 44 | 81.8% | 9.1% | 10.2 |
| GNV Gainesville | 33 | 81.8% | 6.1% | 4.9 |
| SLC Salt Lake City | 1,070 | 81.2% | 7.4% | 10.0 |
| MSP Minneapolis | 1,323 | 80.4% | 8.4% | 11.5 |
| TPA Tampa | 253 | 80.2% | 10.7% | 11.7 |
| HSV Huntsville | 40 | 80.0% | 5.0% | 9.7 |
| SAT San Antonio | 134 | 79.9% | 8.2% | 10.7 |
| LAS Las Vegas | 301 | 79.7% | 7.3% | 8.6 |
| HNL Honolulu | 77 | 79.2% | 6.5% | 9.9 |
| ATL Atlanta | 5,130 | 78.6% | 7.3% | 8.7 |
| ORD Chicago | 247 | 78.5% | 10.1% | 9.5 |
| BHM Birmingham | 74 | 78.4% | 9.5% | 7.4 |
| JAN Jackson | 51 | 78.4% | 3.9% | 2.9 |
| IAH Houston | 158 | 77.8% | 7.0% | 7.4 |
| BZN Bozeman | 36 | 77.8% | 0.0% | 0.9 |
| TLH Tallahassee | 36 | 77.8% | 5.6% | 6.0 |
| SFO San Francisco | 292 | 77.4% | 9.9% | 10.0 |
| JFK New York | 812 | 77.3% | 9.2% | 11.9 |
| ATH Athens | 30 | 76.7% | 6.7% | 2.8 |
| JAX Jacksonville | 94 | 76.6% | 4.3% | 10.9 |
| ORF Norfolk | 64 | 76.6% | 7.8% | 11.1 |
| LAX Los Angeles | 797 | 76.3% | 10.5% | 13.0 |
| LGA New York | 535 | 75.9% | 9.2% | 11.8 |
| LIT Little Rock | 45 | 75.6% | 15.6% | 19.4 |
| YYZ Toronto | 41 | 75.6% | 9.8% | 11.0 |
| SAN San Diego | 190 | 75.3% | 8.9% | 10.0 |
| CLE Cleveland | 77 | 75.3% | 7.8% | 15.8 |
| CHA Chattanooga | 32 | 75.0% | 12.5% | 11.6 |
| DFW Dallas-Fort Worth | 201 | 74.6% | 16.9% | 18.1 |
| BOS Boston | 591 | 73.4% | 13.7% | 17.9 |
| AUS Austin | 250 | 72.8% | 17.2% | 19.8 |
| CDG Paris | 81 | 72.8% | 6.2% | 8.6 |
| SNA Santa Ana | 69 | 72.5% | 17.4% | 16.1 |
| MEM Memphis | 92 | 71.7% | 8.7% | 15.1 |
| CAE Colombia | 42 | 71.4% | 9.5% | 9.5 |
| ANC Anchorage | 35 | 71.4% | 14.3% | 19.5 |
| SEA Seattle | 685 | 70.2% | 13.7% | 14.9 |
| BUF Buffalo | 37 | 64.9% | 16.2% | 26.4 |
Least punctual routes
Routes with at least 20 Delta Air Lines departures, lowest on-time share first.
| Route | Flights | On time | Avg delay |
|---|---|---|---|
| ORD to BOS Chicago to Boston | 25 | 40.0% | 45.2 |
| SEA to DEN Seattle to Denver | 21 | 42.9% | 24.2 |
| LAX to BOS Los Angeles to Boston | 25 | 44.0% | 45.6 |
| MSP to BOS Minneapolis to Boston | 38 | 44.7% | 37.9 |
| ATL to BOS Atlanta to Boston | 75 | 46.7% | 22.9 |
| SFO to BOS San Francisco to Boston | 25 | 48.0% | 33.2 |
| RDU to BOS Raleigh-Durham to Boston | 28 | 50.0% | 28.1 |
| ATL to MOB Atlanta to Mobile | 25 | 52.0% | 22.5 |
| SEA to BOS Seattle to Boston | 25 | 52.0% | 25.6 |
| ATL to SAN Atlanta to San Diego | 42 | 52.4% | 25.0 |
Busiest routes
The ten routes Delta Air Lines flew most this month.
| Route | Flights | On time | Avg delay |
|---|---|---|---|
| ATL to MCO Atlanta to Orlando | 101 | 79.2% | 10.2 |
| MCO to ATL Orlando to Atlanta | 98 | 89.8% | 3.3 |
| ATL to LGA Atlanta to New York | 96 | 82.3% | 7.2 |
| LGA to ATL New York to Atlanta | 92 | 77.2% | 8.1 |
| ATL to DTW Atlanta to Detroit | 84 | 75.0% | 9.1 |
| FLL to ATL Fort Lauderdale to Atlanta | 84 | 88.1% | 0.0 |
| DTW to ATL Detroit to Atlanta | 83 | 83.1% | 11.8 |
| TPA to ATL Tampa to Atlanta | 83 | 78.3% | 21.1 |
| ATL to FLL Atlanta to Fort Lauderdale | 81 | 70.4% | 12.6 |
| ATL to TPA Atlanta to Tampa | 81 | 69.1% | 18.9 |
Other months for Delta Air Lines
Airport pages for October 2026
How we measure
On time means the aircraft took off within 15 minutes of its scheduled departure, after subtracting the departure airport's normal taxi time (FAA SWIM reports wheels-off, not push-back, so the median taxi time of the last 30 days is taken off every flight first). Average delay is the mean of that taxi-adjusted delay over all departures; early departures count as negative minutes, so an operator that routinely leaves early can show a negative average. 45+ min late is the share of departures that left 45 minutes or more behind schedule, the point at which most connections are at risk.
Scope: scheduled airlines only, the same set as the monthly State of the Sky report (operators with published routes; private, fractional and charter operators are left out), so the two publications give the same numbers for the same month. Departures are counted by scheduled day (UTC). Each day's flights are rolled up overnight and published the next morning; the newest day keeps filling in for a day or two and is only shown once it is substantially complete. Figures can differ by a few tenths of a point from the State of the Sky report for the same month: that report is frozen on the 2nd of the following month, while these pages are rebuilt from the live rollup, which recomputes each airport's taxi baseline nightly and re-rolls the last week of the month as late departure times arrive (September 2026 at SFO: 16,398 departures in both, 69.2% on time here against 69.5% in the report).
Source: FAA System Wide Information Management (SWIM) flight plans and departure times, processed by PlaneTrack. Free to quote with credit to PlaneTrack (CC BY 4.0).
Data note: 3 October 2026 - FAA schedule rollup ran short after a database stall (about 17% of departures missing).