Historical on-time performance
West Palm Beach to Chicago
1,144 miData through Dec 2025Source: US DOT · BTS
Flights on PBI–ORD arrive on time 69% of the time over the last 12 months.
On-time rate69%arrived within 15 min
p90 delay85 min1 in 10 flights is worse (tail risk)
Cancelled1.2%of scheduled flights
based on 1,158 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- American AirlinesOn-time66%Medianon timep9085 minCancel1.8%Flights739
- United AirlinesbestOn-time73%Medianon timep9080 minCancel0.2%Flights419
Why flights run late
Delay causes
- Airline22%
- Weather6%
- Air traffic (NAS)24%
- Late aircraft48%
- Security0%
Most delay minutes here are attributed to Late aircraft.
Over time
On-time trend
By season
On-time rate by month
When to fly
Best time to fly PBI → ORD
All airlines · rolling 36 months (2023-01 .. 2025-12).
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 · 371 flights
- Middays79% on time · p90 40 min · 923 flights
- Afternoons65% on time · p90 90 min · 1,140 flights
- Evenings61% on time · p90 95 min · 442 flights
Best day of week
Tuesdays are the most reliable day to fly this route — 82% on time.
- Tuesdays82% on time · p90 35 min · 373 flights
- Mondays73% on time · p90 80 min · 439 flights
- Saturdays71% on time · p90 85 min · 392 flights
- Wednesdays71% on time · p90 85 min · 379 flights
- Fridays70% on time · p90 80 min · 436 flights
- Sundays67% on time · p90 80 min · 446 flights
- Thursdays67% on time · p90 70 min · 414 flights
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