Chicago, IL

C

Chicago, IL, ILORD

On-Time Rate

77.1%

2019-2025

Avg Delay

16.0 min

when delayed

Cancel Rate

2.4%

flights cancelled

Total Flights

1,845,007

2019-2025

Best Month

Sep

82.4% on-time

Worst Month

Jul

70.6% on-time

Best Departure Time

3:00

100.0% on-time

12-Month On-Time Trend

Delay Causes

Best Time to Fly (By Hour)

Seasonal Pattern

Airlines at ORD

AirlineFlightsOn-TimeAvg Delay
United Airlines489,17178.9%0.0 min
SkyWest Airlines362,98275.6%0.0 min
American Airlines342,24374.0%0.0 min
Envoy Air284,07178.7%0.0 min
Republic Airways136,68882.7%0.0 min
Delta Air Lines69,12480.0%0.0 min
Spirit Airlines51,59875.1%0.0 min
Southwest Airlines37,23171.6%0.0 min
Alaska Airlines19,67976.7%0.0 min
EV17,85370.0%0.0 min

Most Delayed Routes

DestinationOn-Time
ORDMEIMeridian, MS62.1%
ORDMGWMorgantown, WV65.1%
ORDASEAspen, CO66.5%
ORDONTOntario, CA67.2%
ORDOAKOakland, CA68.1%

Most Punctual Routes

DestinationOn-Time
ORDSTTCharlotte Amalie, VI84.1%
ORDKOAKona, HI84.1%
ORDHNLHonolulu, HI84.0%
ORDMSOMissoula, MT83.2%
ORDTTNTrenton, NJ83.0%

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Data source: Bureau of Transportation Statistics (BTS) On-Time Performance dataset. Statistics are based on reported flight data from 2019-2025. See our data methodology for details.