BTS DATA COMPLETE THROUGH JUNE 2026HISTORICAL ODDS · NOT LIVE FLIGHT STATUS
DelayOddsKnow the route before you book
BGRORD

Bangor, ME (BGR) to Chicago, IL (ORD) flight delay odds

Historically, 75.3% of scheduled reportable flights on this direction arrived on time in July 2025–June 2026. The sample includes 695 flights.

HISTORICAL ROUTE SIGNALGenerally reliable
75.3%arrived on time
16.5%30+ min late
1.3%cancelled
695scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late10.5%all scheduled flights
120+ minutes late4.6%all scheduled flights
Diverted0.0%did not reach as scheduled
Average arrival+11.9 mincompleted flights

When is this route most reliable?

The same route can behave differently through the day. These are scheduled departure windows, not actual departure times. Small time windows with fewer than 40 flights are withheld.

Departure windowFlightsOn time30+ minCancelled
Early morning13489.6%5.2%0.7%
Late morning10192.1%7.9%0.0%
Afternoon31473.9%16.6%1.3%
Evening14653.4%32.9%2.7%

Weekday comparison

Day-of-week results use at least 30 scheduled flights per row. Look for broad patterns, not tiny percentage differences.

DayFlightsOn time30+ minCancelled
Monday10476.0%17.3%2.9%
Tuesday8682.6%11.6%0.0%
Wednesday8974.2%14.6%1.1%
Thursday10672.6%16.0%2.8%
Friday10571.4%18.1%1.9%
Saturday10577.1%17.1%0.0%
Sunday10074.0%20.0%0.0%

Airline comparison

Marketing-carrier results make codeshare flights easier to compare as travelers buy them. Dedicated route-airline reports require at least 160 flights.

AirlineFlightsOn time30+ minCancelled
Republic Airways31074.5%17.7%1.3%
American Airlines16272.2%19.1%1.9%
Envoy Air13983.5%10.8%0.0%
SkyWest Airlines8369.9%16.9%2.4%
United Airlines1100.0%0.0%0.0%

Monthly trend

Month-by-month results show whether a twelve-month average hides an unusual period.

MonthFlightsOn time30+ minCancelled
July 202512268.0%24.6%0.8%
August 202510973.4%19.3%1.8%
September 202510974.3%18.3%0.0%
October 202511077.3%13.6%0.0%
November 20252100.0%0.0%0.0%
April 20264376.7%11.6%4.7%
May 20268082.5%11.2%0.0%
June 202612077.5%12.5%3.3%

What drove reported delay minutes?

BTS cause minutes are reported for qualifying delayed flights. These shares describe recorded delay minutes—not the chance that a particular cause will affect your next flight.

Airline19.2%
Late aircraft34.5%
National airspace39.1%
Weather7.3%
Security0.0%
This is historical evidence, not a forecast.

Weather, schedules and operations change. For a trip you have already booked, use the airline or airport for live status.