72% of flights leaving Bangor (BGR) arrived on time over the past 12 months, 3 points worse than the national average of 76%. About 17 flights leave BGR on a typical day; 4.3% were cancelled. 76% pushed back from the gate on time, so most of the lateness is already there when the flight leaves the gate.
At a glance
- Best hour to fly: 7 a.m. (88% on time). Worst: 5 p.m. (60%).
- Best month: November (84%). Worst: July (65%).
- Most reliable airline here: Delta Air Lines (74%), vs United Airlines at 70%.
- Biggest delay cause: late-arriving aircraft (39% of delay minutes).
- Year on year: getting worse (76% → 72%).
How late?
The on-time rate treats a flight 20 minutes late the same as one 5 hours late. Here's the split for flights leaving BGR: when a flight was late, it was under 45 minutes late 45% of the time. About 1 in 10 flights landed an hour or more late, and 1 in 31 three hours or more; 4.3% were cancelled outright.
- On time or early72%
- 15–30 min late6.9%
- 30–60 min late5.9%
- 1–2 hours late5.2%
- 2–3 hours late1.9%
- 3+ hours late3.2%
- Diverted0.2%
- Cancelled4.3%
Share of all 6,386 scheduled flights, past 12 months, by arrival time against schedule.
Best time of day to fly out of BGR
Time of day matters more at BGR than almost anything else you control. Flights scheduled to leave at 7 a.m. arrived on time 88% of the time; at 5 p.m. it was 60%, a 28-point gap. Taken together, early departures (5–9 a.m.) ran 83% on time against 63% for the evening bank (5–10 p.m.). Early planes usually start the day at the airport, so they haven't had a chance to pick up delays elsewhere. By evening a late inbound aircraft, a crew running out of duty hours or an afternoon thunderstorm can push one late flight into the next. Cancellations cluster too: 5 p.m. departures were cancelled 6.2% of the time, against 4.3% overall.
Hour × month
Combine the two and the spread is wider still. The most reliable combination at BGR was a 7 a.m. departure in April (95% on time); the least, 3 p.m. in July (43%). If you can only move one thing, move the hour. Departure hour usually shifts the odds more than the month does.
Each cell: on-time rate for that departure hour in that calendar month, 2023–2026. Find your travel month, then look along the row for the greenest hour.
Best and worst months
July is the hardest month at BGR, with 65% of flights on time across 2023–2026; November is the best at 84%. Summer (June–August) runs 14 points worse than autumn: heavy schedules, peak loads and afternoon thunderstorms. Winter costs 8 points against autumn. Cancellations peak in January (9.4% of flights).
Airlines at BGR
American Airlines runs 52% of departures from BGR, so BGR is effectively its hub. When American Airlines has a bad day, so does the airport. Among airlines with at least 1,000 departures here, Delta Air Lines was the most reliable (74% on time) and United Airlines the least (70%), a 4-point difference. On a route where both fly, that difference is worth more than a small fare gap.
| Airline | Departures | On time | Left on time | Cancelled | Typical arrival |
|---|---|---|---|---|---|
| American Airlines | 3,336 | 73% | 74% | 4.1% | −10 min |
| Delta Air Lines | 1,354 | 74% | 77% | 6.1% | −15 min |
| United Airlines | 1,107 | 70% | 80% | 4.3% | −4 min |
| Allegiant Air | 589 | 71% | 75% | 1.4% | −4 min |
Why flights are late at BGR
Airlines report a cause for every flight that arrives 15 or more minutes late. At BGR, 39% of delay minutes came from late-arriving aircraft: the plane showed up late from its previous flight, so the delay started somewhere else. Next is the airlines themselves at 30%. That's why the first flight of the morning is the safest bet: it has no earlier flight to inherit a delay from. Of the 277 cancellations, 55% were blamed on weather.
The average taxi from gate to takeoff is 20 minutes, longer than at most large U.S. airports. Airlines pad schedules for it, but a long queue on a busy afternoon still eats into the buffer.
Month by month
Over the latest 12 months 72% of BGR departures were on time, against 76% in the 12 months before, a decline of 4 points. The best recent month was April 2026 (85%); the worst, August 2026 (61%).
Worst cancellation days
The worst single day in the past year was Monday, Jan 26, 2026, when 100% of 10 scheduled departures were cancelled. Days like that are usually a major storm, a system outage or a holiday peak hitting bad weather. No average predicts them, so on a stormy forecast, check your airline's travel waivers.
| Date | Departures | Cancelled | On time |
|---|---|---|---|
| Jan 26, 2026 | 10 | 100% | 0% |
| Jan 28, 2026 | 11 | 100% | 0% |
| Jan 25, 2026 | 11 | 91% | 0% |
| Feb 23, 2026 | 13 | 62% | 15% |
| Jul 21, 2026 | 22 | 41% | 23% |
| Feb 22, 2026 | 13 | 38% | 54% |
| Aug 27, 2026 | 24 | 38% | 46% |
| Jul 18, 2026 | 27 | 37% | 19% |
| Jan 29, 2026 | 11 | 36% | 18% |
| Jul 28, 2026 | 22 | 36% | 45% |
Last flights of the day
The last flight of the day is a different bet. Across routes from BGR, each airline's final departure was cancelled 6.5% of the time, against 3.8% for its earlier flights (1.7× as often). Late in the day crews run short on duty hours, aircraft arrive late from elsewhere, and with no later flight to fold passengers into, cancelling is easier for the airline. 4.3% of last flights landed 3+ hours late. The riskiest last flight out was Delta Air Lines to New York (10.1% cancelled).
| Last flight to | Airline | Leaves | Cancelled | 3h+ late | On time |
|---|---|---|---|---|---|
| LGA New York | Delta Air Lines | 5:00 p.m. | 10.1% | 3.0% | 65% |
| EWR Newark | United Airlines | 7:17 p.m. | 7.5% | 5.4% | 54% |
| DCA Washington | American Airlines | 4:31 p.m. | 6.9% | 3.9% | 55% |
| ORD Chicago | United Airlines | 4:35 p.m. | 3.6% | 6.5% | 59% |
| PHL Philadelphia | American Airlines | 4:49 p.m. | 5.5% | 3.6% | 71% |
| ORD Chicago | American Airlines | 12:59 p.m. | 3.0% | 4.6% | 60% |
Each airline's last scheduled departure of the day on a route, on days it flies the route at least twice; past 12 months. Riskiest first.
Tips for flying out of BGR
- Book the earliest departure you can live with. At BGR the 7 a.m. flights do best.
- Traveling in July? Leave extra slack for anything that can't move: cruises, weddings, the last connection of the day.
- Choosing between airlines? Delta Air Lines has the better record here.
- Need to arrive tonight? Don't book the last flight out of BGR; the one before it leaves you a backup.
- Delayed already? Most delays at BGR come from late-arriving aircraft. If your inbound plane is late, your flight will be too, whatever the board says.
Routes from BGR
Where you're going matters too. From BGR, the most reliable busy route was to Philadelphia (PHL, 79% on time) and the least reliable to Washington (DCA, 65%). Flights into congested airports inherit their delays: an air traffic program at the destination holds planes on the ground here.
Least reliable first. Routes with at least 365 flights a year.
| To | Flights | On time | Cancelled | Typical arrival |
|---|---|---|---|---|
| DCA Washington | 1,123 | 65% | 6.4% | −4 min |
| EWR Newark | 800 | 69% | 5.3% | −5 min |
| JFK New York | 372 | 72% | 4.8% | −15 min |
| ORD Chicago | 712 | 73% | 1.7% | −6 min |
| LGA New York | 1,167 | 74% | 6.6% | −14 min |
| PHL Philadelphia | 1,242 | 79% | 3.5% | −14 min |
Flights into BGR
Arriving rather than leaving? These are the routes into Bangor, least reliable first. The weakest is from Washington (62% on time).
| From | Flights | On time | Cancelled |
|---|---|---|---|
| DCA Washington | 1,122 | 62% | 7.1% |
| LGA New York | 1,166 | 70% | 6.3% |
| EWR Newark | 801 | 70% | 5.9% |
| ORD Chicago | 711 | 73% | 1.7% |
| PHL Philadelphia | 1,244 | 76% | 3.8% |
| JFK New York | 372 | 78% | 4.3% |
Questions about BGR delays
What is the best time to fly out of BGR?
Flights scheduled at 7 a.m.: over the past year 88% of BGR departures at that hour arrived on time, against 60% at 5 p.m., the worst hour.
What month has the most flight delays at BGR?
July (65% on time). November is the best month (84%).
Which airline is most on time at BGR?
Delta Air Lines: 74% of its BGR departures arrived on time over the past year. United Airlines had the weakest record at 70%.
Why are flights delayed at BGR?
The biggest cause was late-arriving aircraft (39% of delay minutes): the plane showed up late from its previous flight, so the delay started somewhere else. Then the airlines themselves (30%).
How often are flights cancelled at BGR?
4.3% of scheduled departures over the past 12 months, peaking in January at 9.4%.
Hours are scheduled local departure times. "On time" means arriving less than 15 minutes late at the destination; cancelled and diverted flights count as not on time. Method.