Historical on-time performance
Chicago to West Palm Beach
1,144 miData through May 2026Source: US DOT · BTS
Flights on ORD–PBI arrive on time 67% of the time over the last 12 months.
On-time rate67%arrived within 15 min
p90 delay80 min1 in 10 flights is worse (tail risk)
Cancelled1.5%of scheduled flights
based on 1,238 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- United AirlinesbestOn-time72%Medianon timep9060 minCancel0.5%Flights442
- American AirlinesOn-time63%Medianon timep9090 minCancel2.1%Flights796
Why flights run late
Delay causes
- Airline24%
- Weather2%
- Air traffic (NAS)23%
- Late aircraft50%
- Security0%
Most delay minutes here are attributed to Late aircraft.
When flights don't go
Why flights were cancelled
- Airline5%
- Weather74%
- Air traffic (NAS)21%
- Security0%
Most cancellations here are attributed to Weather. Shares are among 19 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 → PBI
All airlines · rolling 36 months (2023-06 .. 2026-05).
Best time of day
On-time rates are fairly even by time of day on this route — ranging from 66% to 78% on time.
- Mornings78% on time · p90 40 min · 979 flights
- Afternoons73% on time · p90 70 min · 161 flights · limited
- Middays71% on time · p90 70 min · 1,774 flights
- Evenings66% on time · p90 80 min · 229 flights
Best day of week
Tuesdays are the most reliable day to fly this route — 84% on time.
- Tuesdays84% on time · p90 35 min · 409 flights
- Wednesdays77% on time · p90 45 min · 424 flights
- Mondays74% on time · p90 65 min · 463 flights
- Fridays72% on time · p90 65 min · 474 flights
- Saturdays71% on time · p90 70 min · 450 flights
- Thursdays71% on time · p90 55 min · 460 flights
- Sundays66% on time · p90 80 min · 464 flights
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