Route
ATL → ORD
Hartsfield Jackson Atlanta International Airport Chicago O'Hare International Airport
How punctual is this route?
- On-time arrivals
- 69.0%
- Less than 15 minutes late
- Cancelled
- 2.4%
- Of scheduled flights
- Average delay when late
- 87 min
- Flights arriving 15+ minutes late
- Flights tracked
- 6,493
- Scheduled flights in the period
What caused the delays
- Air traffic control & airport 39%
- Late-arriving aircraft 30%
- Airline (crew, maintenance, cleaning) 25%
- Extreme weather 6%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 84.4% | 541 |
| October 2025 | 75.8% | 569 |
| November 2025 | 67.0% | 526 |
| December 2025 | 60.5% | 487 |
| January 2026 | 68.5% | 445 |
| February 2026 | 75.5% | 445 |
| March 2026 | 58.5% | 516 |
| April 2026 | 67.4% | 554 |
| May 2026 | 72.7% | 596 |
| June 2026 | 68.4% | 584 |
| July 2026 | 68.0% | 604 |
| August 2026 | 60.2% | 626 |
Source: U.S. DOT Bureau of Transportation Statistics on-time data, September 2025 – August 2026. Covers flights operated by reporting U.S. carriers. About our data
Airlines on this route
| Airline | Flights | On time | Cancelled | Avg. delay when late |
|---|---|---|---|---|
| Delta Air Lines | 2,631 | 67.6% | 2.2% | 68 min |
| United Airlines | 1,717 | 72.7% | 1.8% | 97 min |
| American Airlines | 754 | 68.3% | 2.5% | 117 min |
| Frontier Airlines | 716 | 64.4% | 3.1% | 110 min |
| Envoy Air | 363 | 71.3% | 2.2% | 86 min |
| Republic Airways | 255 | 66.2% | 6.3% | 82 min |
| SkyWest Airlines | 40 | 84.2% | 5.0% | 92 min |
| NK | 16 | 81.2% | 0.0% | 33 min |
| OH | 1 | 100.0% | 0.0% | — |
Delay odds by flight
How often each flight number arrived 15 or more minutes late over the last year.
-
DL2738
42% late · 365 flights
-
UA516
29% late · 362 flights
-
DL1477
27% late · 356 flights
-
DL1147
21% late · 351 flights
-
DL2879
54% late · 344 flights
-
F91441
27% late · 342 flights
-
DL1199
29% late · 328 flights
-
DL1178
13% late · 325 flights
-
UA1046
39% late · 320 flights
-
F93397
43% late · 239 flights
-
UA745
22% late · 197 flights
-
DL1139
43% late · 194 flights
-
AA616
34% late · 165 flights
-
F91595
44% late · 132 flights
-
DL2894
29% late · 115 flights
-
DL1456
16% late · 110 flights
-
YX4703
35% late · 92 flights
-
DL2486
42% late · 84 flights
-
UA1239
19% late · 82 flights
-
AA1372
58% late · 76 flights
-
MQ3682
20% late · 76 flights
-
AA1363
26% late · 75 flights
-
UA785
48% late · 69 flights
-
YX4759
44% late · 69 flights
In the news
More headlines →-
City Council backs $55 million in new Hartsfield-Jackson funding as construction projects multiply
The Business Journals ATL
-
Over 400 flights cancelled due to severe weather at Hartsfield-Jackson Atlanta International Airport, Georgia
The Watchers - Watching the world evolve and transform ATL
-
Hartsfield-Jackson Atlanta International Airport
The Aviation Hub ATL
Headlines found by Google News; stories open on the publisher's site.
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