FlightRecord

Chicago (ORD) to Bangor (BGR): On-Time Performance

Data through July 2026

When you fly ORD to BGR matters as much as anything else about the booking: the route swung from 88% on-time in May 2025 to just 68% in June 2026. Across the full period the route averages 78% on-time against a national 78%. Morning departures also hold up better than evening ones (85% vs 66%), which matters most in the rough months.

On-time
78%
arrived <15 min late
Avg delay
17 min
completed flights
Cancelled
1.0%
Flights/day
1.9
last 12 months
Duration
2h 43m
scheduled
Distance
978 mi

Best airline from ORD to BGR

4 airlines flew this route regularly between 2024-07 and 2026-07.

AirlineOn-timeAvg delayCancelledFlights
Envoy Airmost reliable83%8 min0.0%330
Republic Airways81%13 min0.8%378
SkyWest Airlines75%19 min1.5%260
American Airlines68%37 min2.2%223

Monthly on-time trend

Monthly on-time percentage for ORD to BGR flights50%75%100%July 2024: 73% on-time (74 flights)73Jul 2024August 2024: 76% on-time (92 flights)76September 2024: 86% on-time (79 flights)86October 2024: 80% on-time (35 flights)80Oct 2024May 2025: 88% on-time (25 flights)88June 2025: 78% on-time (72 flights)78July 2025: 80% on-time (122 flights)80Jul 2025August 2025: 84% on-time (109 flights)84September 2025: 87% on-time (108 flights)87October 2025: 80% on-time (109 flights)80Oct 2025November 2025: 100% on-time (2 flights)100April 2026: 69% on-time (44 flights)69May 2026: 77% on-time (81 flights)77May 2026June 2026: 68% on-time (120 flights)68July 2026: 70% on-time (124 flights)70

Best time to fly from ORD to BGR

Aim for departures around 11 a.m. (86% on-time); avoid 7 p.m. departures (53%).

On-time percentage by scheduled departure hour, ORD to BGR8 a.m.: 84% on-time (288 flights)89 a.m.: 91% on-time (21 flights)911 a.m.: 86% on-time (332 flights)111 p.m.: 73% on-time (248 flights)135 p.m.: 68% on-time (118 flights)176 p.m.: 75% on-time (93 flights)187 p.m.: 53% on-time (82 flights)19scheduled departure hour

By day of week

DayOn-timeAvg delay
Monday70%29 min
Tuesdaybest84%10 min
Wednesday80%17 min
Thursday80%12 min
Friday73%22 min
Saturday82%12 min
Sunday78%19 min

What causes delays on this route

Share of total delay minutes by cause, as reported by carriers to the US DOT.

  • Late-arriving aircraft49%
  • Airline operations33%
  • National airspace system16%
  • Weather2%

Frequently asked questions

How often are flights from ORD to BGR delayed?
22% of ORD–BGR flights arrived 15 or more minutes late (the US DOT definition of a delay) between 2024-07 and 2026-07. The average arrival delay across completed flights was 17 minutes.
Which airline is most reliable from ORD to BGR?
Envoy Air has the best on-time record on this route at 83%, based on 330 flights. 4 airlines flew ORD–BGR frequently enough to compare in this period.
What is the best time of day to fly from ORD to BGR?
Departures around 11 a.m. have the best record (86% on-time), while departures around 7 p.m. have the worst (53%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
How long is the flight from ORD to BGR?
The scheduled ORD–BGR flight time averages 2h 43m over 978 miles. Actual arrival times vary — flights on this route land 15+ minutes late 22% of the time.
How often are ORD to BGR flights cancelled?
1% of scheduled flights on this route were cancelled between 2024-07 and 2026-07, at or below the national rate of 1.6%.
What is the worst month to fly from ORD to BGR?
June 2026 was the roughest month in this dataset, with only 68% of arrivals on time. The best was May 2025 at 88%. If your dates are flexible, that 20-point gap is worth planning around.

Based on 1,196 flights, 2024-07–2026-07. Source: US DOT Bureau of Transportation Statistics. Updated 2026-09-28.