Historical on-time performance
Chicago to Fort Lauderdale
1,182 miData through May 2026Source: US DOT · BTS
Flights on ORD–FLL arrive on time 72% of the time over the last 12 months.
On-time rate72%arrived within 15 min
p90 delay60 min1 in 10 flights is worse (tail risk)
Cancelled2.0%of scheduled flights
based on 3,260 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- United AirlinesbestOn-time78%Medianon timep9040 minCancel0.8%Flights1,447
- American AirlinesOn-time70%Medianon timep9065 minCancel1.6%Flights827
- Spirit AirlinesOn-time64%Medianon timep9080 minCancel4.2%Flights986
Why flights run late
Delay causes
- Airline27%
- Weather7%
- Air traffic (NAS)30%
- Late aircraft36%
- Security0%
Most delay minutes here are attributed to Late aircraft.
When flights don't go
Why flights were cancelled
- Airline22%
- Weather62%
- Air traffic (NAS)17%
- Security0%
Most cancellations here are attributed to Weather. Shares are among 65 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 → FLL
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 — 83% on time.
- Mornings83% on time · p90 30 min · 3,668 flights
- Middays72% on time · p90 55 min · 2,470 flights
- Afternoons66% on time · p90 80 min · 881 flights
- Overnights63% on time · p90 90 min · 231 flights
- Evenings62% on time · p90 85 min · 2,004 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 69% to 78% on time.
- Tuesdays78% on time · p90 45 min · 1,208 flights
- Wednesdays77% on time · p90 45 min · 1,205 flights
- Thursdays76% on time · p90 45 min · 1,365 flights
- Mondays72% on time · p90 60 min · 1,348 flights
- Saturdays72% on time · p90 55 min · 1,358 flights
- Fridays71% on time · p90 65 min · 1,372 flights
- Sundays69% on time · p90 65 min · 1,401 flights
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