Historical on-time performance
Chicago to Allentown
654 miData through Dec 2025Source: US DOT · BTS
Flights on ORD–ABE arrive on time 83% of the time over the last 12 months.
On-time rate83%arrived within 15 min
p90 delay25 min1 in 10 flights is worse (tail risk)
Cancelled0.0%of scheduled flights
based on 30 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- SkyWest AirlinesOn-time83%Medianon timep9025 minCancel0.0%Flights30
Why flights run late
Delay causes
- Airline25%
- Weather2%
- Air traffic (NAS)25%
- 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 ORD → ABE
All airlines · rolling 36 months (2023-01 .. 2025-12).
Best time of day
Afternoons are the most reliable time of day to fly this route — 92% on time.
- Afternoons92% on time · p90 10 min · 73 flights · limited
- Mornings75% on time · p90 60 min · 83 flights · limited
- Middays74% on time · p90 60 min · 417 flights
- Evenings68% on time · p90 65 min · 459 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 71% to 74% on time.
- Mondays74% on time · p90 55 min · 157 flights · limited
- Wednesdays74% on time · p90 55 min · 153 flights · limited
- Saturdays74% on time · p90 50 min · 151 flights · limited
- Sundays73% on time · p90 55 min · 153 flights · limited
- Tuesdays72% on time · p90 65 min · 154 flights · limited
- Fridays71% on time · p90 65 min · 157 flights · limited
- Thursdays71% on time · p90 60 min · 151 flights · limited
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