Duluth International (DLH) Delays and On-Time Departures
Duluth, MN · ranked 196th of 333 airports for on-time departures
Data through July 2026 · Last updated October 18, 2026
79.8% of the 2,429 flights scheduled to depart Duluth (DLH) in the last 12 months left on time, 2.3 points above the US average of 77.4%.
That ranks 196th of 333 US airports tracked on this site, with 3.6% of departures cancelled.
Among airlines at Duluth (DLH), Republic Airways left on time most often (86.2%).
Over 24 months, Thursday was the most reliable day (83% on time) and December the worst month (68%).
Best time of day to fly out of Duluth (DLH)
On-time departure % by scheduled departure hour (local time), last 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 5am–6am | 91.0% | 1.8% | 728 |
| 6am–7am | Limited data | 25 | |
| 7am–8am | 85.0% | 3.0% | 501 |
| 8am–9am | 87.7% | 2.1% | 481 |
| 9am–10am | 92.7% | 0.0% | 68 |
| 10am–11am | 87.0% | 0.3% | 316 |
| 11am–12pm | 76.4% | 2.5% | 721 |
| 12pm–1pm | 84.8% | 3.8% | 185 |
| 2pm–3pm | 78.7% | 1.1% | 176 |
| 3pm–4pm | 75.8% | 2.7% | 772 |
| 4pm–5pm | 77.8% | 1.0% | 383 |
| 5pm–6pm | 72.9% | 0.0% | 48 |
| 6pm–7pm | 75.5% | 3.9% | 331 |
| 7pm–8pm | Limited data | 2 | |
Airlines at DLH ranked by on-time departures
Last 12 months. Airlines with fewer than 30 departures are marked “limited data”.
| Airline | On-time departures | On-time arrivals | Cancelled | Departures |
|---|---|---|---|---|
| Republic Airways | 86.2% | 73.8% | 3.6% | 83 |
| SkyWest Airlines | 79.5% | 75.6% | 3.6% | 2,342 |
| Delta Air Lines | Limited data | 4 | ||
80%+ good 70–79.9% fair <70% poor
Best day to fly out of DLH
On-time departures by day, 24 months.
Best month to fly out of DLH
On-time departures by month, 24 months.
Holiday travel at Duluth (DLH)
On-time departures during holiday periods compared with all other days, last 24 months.
| Period | On-time departures | vs other days | Cancelled | Flights |
|---|---|---|---|---|
| Thanksgiving week (Tue before to Mon after) | 65.4% | -18.1 pts | 9.0% | 89 |
| Christmas & New Year (Dec 20 - Jan 3) | 71.8% | -11.7 pts | 3.6% | 140 |
| Summer peak (Jun 15 - Aug 15) | 79.3% | -4.2 pts | 2.4% | 890 |
| All other days | 83.5% | — | 2.0% | 3,618 |
Monthly on-time departure trend at DLH
On-time departure % each month, with the 12-month US average for reference.
Routes from Duluth (DLH)
Every route from DLH with its own page, by number of flights (last 12 months, on-time arrivals).
| To | On time | Cancelled | Flights |
|---|---|---|---|
| DLH → Chicago (ORD) | 68.8% | 4.5% | 1,223 |
| DLH → Minneapolis (MSP) | 82.3% | 2.6% | 1,206 |