Delta Air Lines MDW to ATL on-time performance
Delta Air Lines nonstop flights from Chicago to Atlanta · Aug 2025 – Jul 2026
On-time arrivals
87%
arrived < 15 min late
Cancelled
2.8%
38 flights
Avg arrival delay
13 min
96 min when late
Rank on route
#1 of 3
route average 79% on time
Key facts
- Delta Air Lines flights on MDW to ATL arrived on time 87% of the time in Aug 2025 – Jul 2026.
- 2.8% were cancelled, and 5% arrived an hour or more late.
- That ranks #1 of 3 airlines on this route, which averaged 79% on time overall.
- The largest source of delay minutes was airline (crew, maintenance, cleaning, fueling) (60%).
On-time trend by month
Why this airline's flights were late
- Airline (crew, maintenance, cleaning, fueling)60%
- Late-arriving aircraft27%
- Air traffic control & airport congestion11%
- Extreme weather2%
- Security0%
Other airlines on MDW to ATL
- Southwest Airlines76% on time · 15 min avg delay
- Frontier Airlines71% on time · 16 min avg delay
Full MDW to ATL comparison →
Delta Air Lines on-time record across all routes →
1,362 Delta Air Lines flights tracked on this route; 38 cancelled, 8 diverted.
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. How we calculate this.