Historical on-time performance
Chicago to Allentown
655 miData through May 2026Source: US DOT · BTS
Flights on ORD–ABE arrive on time 61% of the time over the last 12 months.
On-time rate61%arrived within 15 min
p90 delay90 min1 in 10 flights is worse (tail risk)
Cancelled3.2%of scheduled flights
based on 186 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- SkyWest AirlinesOn-time61%Medianon timep9090 minCancel3.2%Flights186
Why flights run late
Delay causes
- Airline46%
- Weather5%
- Air traffic (NAS)27%
- Late aircraft22%
- Security0%
Most delay minutes here are attributed to Airline.
When flights don't go
Why flights were cancelled
- Airline0%
- Weather83%
- Air traffic (NAS)17%
- Security0%
Most cancellations here are attributed to Weather. Shares are among 6 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 → ABE
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 62% to 73% on time.
- Middays73% on time · p90 70 min · 371 flights
- Mornings71% on time · p90 65 min · 172 flights · limited
- Evenings62% on time · p90 85 min · 406 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 66% to 73% on time.
- Thursdays73% on time · p90 45 min · 146 flights · limited
- Saturdays71% on time · p90 60 min · 143 flights · limited
- Sundays68% on time · p90 65 min · 143 flights · limited
- Wednesdays68% on time · p90 80 min · 143 flights · limited
- Mondays68% on time · p90 85 min · 146 flights · limited
- Tuesdays66% on time · p90 65 min · 146 flights · limited
- Fridays66% on time · p90 80 min · 151 flights · limited
Keep exploring