Historical on-time performance
Chicago to Bangor
978 miData through Dec 2025Source: US DOT · BTS
Flights on ORD–BGR arrive on time 83% of the time over the last 12 months.
On-time rate83%arrived within 15 min
p90 delay30 min1 in 10 flights is worse (tail risk)
Cancelled0.2%of scheduled flights
based on 478 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
Too close to call — no single carrier is clearly more on-time here.
- Envoy AirOn-time86%Medianon timep9025 minCancel0.0%Flights124
- Republic AirwaysOn-time82%Medianon timep9030 minCancel0.3%Flights324
- American AirlinesOn-time73%Medianon timep90100 minCancel0.0%Flights30
Why flights run late
Delay causes
- Airline39%
- Weather2%
- Air traffic (NAS)11%
- Late aircraft49%
- 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 → BGR
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 — 87% on time.
- Mornings87% on time · p90 15 min · 243 flights
- Middays80% on time · p90 30 min · 823 flights
- Evenings76% on time · p90 45 min · 132 flights · limited
Best day of week
On-time rates are fairly even by day on this route — ranging from 75% to 87% on time.
- Tuesdays87% on time · p90 15 min · 141 flights · limited
- Saturdays85% on time · p90 20 min · 203 flights
- Wednesdays82% on time · p90 30 min · 151 flights · limited
- Sundays81% on time · p90 35 min · 191 flights · limited
- Thursdays81% on time · p90 45 min · 179 flights · limited
- Mondays75% on time · p90 45 min · 155 flights · limited
- Fridays75% on time · p90 35 min · 179 flights · limited
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