Historical on-time performance
Washington to Chicago
Flights on DCA–ORD arrive on time 71% of the time over the last 12 months.
based on 6,716 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
Too close to call — no single carrier is clearly more on-time here.
- Envoy AirOn-time74%Medianon timep9015 minCancel12.9%Flights31
- American AirlinesOn-time72%Medianon timep9065 minCancel4.0%Flights2,322
- United AirlinesOn-time71%Medianon timep9060 minCancel2.1%Flights3,385
- Republic AirwaysOn-time70%Medianon timep9055 minCancel5.8%Flights978
Why flights run late
Delay causes
- Airline16%
- Weather9%
- Air traffic (NAS)34%
- Late aircraft42%
- Security0%
Most delay minutes here are attributed to Late aircraft.
When flights don't go
Why flights were cancelled
- Airline14%
- Weather73%
- Air traffic (NAS)13%
- Security0%
Most cancellations here are attributed to Weather. Shares are among 226 cancellations with a reported cause (BTS reports causes from June 2003).
Over time
On-time trend
By season
On-time rate by month
When to fly
Best time to fly DCA → ORD
All airlines · rolling 36 months (2023-06 .. 2026-05).
Best time of day
Mornings are the most reliable time of day to fly this route — 86% on time.
- Mornings86% on time · p90 15 min · 6,063 flights
- Middays85% on time · p90 25 min · 4,790 flights
- Afternoons73% on time · p90 70 min · 3,175 flights
- Overnights69% on time · p90 70 min · 1,301 flights
- Evenings61% on time · p90 90 min · 4,068 flights
Best day of week
Saturdays are the most reliable day to fly this route — 81% on time.
- Saturdays81% on time · p90 40 min · 2,095 flights
- Tuesdays79% on time · p90 40 min · 2,887 flights
- Mondays78% on time · p90 45 min · 2,893 flights
- Thursdays77% on time · p90 45 min · 2,877 flights
- Sundays77% on time · p90 50 min · 2,873 flights
- Wednesdays76% on time · p90 45 min · 2,879 flights
- Fridays74% on time · p90 55 min · 2,893 flights
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