Historical on-time performance
Chicago to Newark
719 miData through May 2026Source: US DOT · BTS
Flights on ORD–EWR arrive on time 68% of the time over the last 12 months.
On-time rate68%arrived within 15 min
p90 delay80 min1 in 10 flights is worse (tail risk)
Cancelled2.8%of scheduled flights
based on 5,704 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- Envoy AirbestOn-time76%Medianon timep9040 minCancel4.7%Flights721
- United AirlinesOn-time69%Medianon timep9080 minCancel2.2%Flights4,335
- American AirlinesOn-time50%Median10 minp90115 minCancel4.1%Flights587
- Spirit AirlinesOn-time38%Median15 minp9085 minCancel11.5%Flights61
Why flights run late
Delay causes
- Airline19%
- Weather8%
- Air traffic (NAS)39%
- Late aircraft33%
- Security0%
Most delay minutes here are attributed to Air traffic (NAS).
When flights don't go
Why flights were cancelled
- Airline4%
- Weather82%
- Air traffic (NAS)14%
- Security0%
Most cancellations here are attributed to Weather. Shares are among 160 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 ORD → EWR
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 — 85% on time.
- Mornings85% on time · p90 20 min · 4,832 flights
- Middays70% on time · p90 75 min · 4,342 flights
- Afternoons63% on time · p90 100 min · 3,370 flights
- Overnights62% on time · p90 90 min · 1,723 flights
- Evenings58% on time · p90 115 min · 3,592 flights
Best day of week
Tuesdays are the most reliable day to fly this route — 75% on time.
- Tuesdays75% on time · p90 55 min · 2,539 flights
- Wednesdays71% on time · p90 70 min · 2,569 flights
- Saturdays71% on time · p90 75 min · 2,305 flights
- Mondays69% on time · p90 80 min · 2,611 flights
- Fridays67% on time · p90 80 min · 2,639 flights
- Thursdays67% on time · p90 85 min · 2,594 flights
- Sundays67% on time · p90 85 min · 2,603 flights
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