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

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

75.3% of 695 official scheduled BGR-to-ORD flights arrived on time; 16.5% arrived at least 30 minutes late and 1.3% were cancelled during July 2025–June 2026.

Source: U.S. Bureau of Transportation Statistics · Reporting window: July 2025–June 2026 · Updated September 16, 2026

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

Which departure time was most reliable for BGR to ORD?

Among qualifying BGR-to-ORD departure window results, Late morning had the highest on-time rate: 92.1% of 101 flights. Evening was lowest at 53.4% across 146 flights.

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%

Which weekday was most reliable for BGR to ORD?

Among qualifying BGR-to-ORD weekday results, Tuesday had the highest on-time rate: 82.6% of 86 flights. Friday was lowest at 71.4% across 105 flights.

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%

Which airline was most reliable for BGR to ORD?

Among qualifying BGR-to-ORD airline results, Envoy Air had the highest on-time rate: 83.5% of 139 flights. SkyWest Airlines was lowest at 69.9% across 83 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%

Which month was most reliable for BGR to ORD?

Among qualifying BGR-to-ORD month results, May 2026 had the highest on-time rate: 82.5% of 80 flights. July 2025 was lowest at 68.0% across 122 flights.

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%
April 20264376.7%11.6%4.7%
May 20268082.5%11.2%0.0%
June 202612077.5%12.5%3.3%

What drove BGR to ORD delay minutes?

National airspace was the largest recorded BGR-to-ORD delay category, accounting for 39.1% of 15,329 BTS-attributed delay minutes during July 2025–June 2026.

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.