Airport reliability
Duluth (DLH) on-time performance
How reliably flights leave Duluth, MN (DLH) and reach their destinations, by airline, departure hour and month, September 2025 to August 2026.
Duluth, MN2,478 departures in 12 months
- Departures on time
- 72.9% U.S. average 75.6%
- Cancelled
- 3.7% U.S. average 1.9%
- 60+ minutes late
- 11.3% U.S. average 8.1%
- Scheduled departures
- 2,478 12 months
What this means
DLH departures ran below the U.S. average.
- 72.9% of the 2,478 scheduled departures from Duluth (DLH) arrived at their destination on time, 2.7 points lower than the U.S. average of 75.6%.
- 3.7% of departures were cancelled (U.S. average 1.9%), and 11.3% arrived an hour or more late.
- Flights arriving at DLH were on time 69.8% of the time.
- Over the last 3 years, October was the most reliable month for departures from DLH (90.5% on time) and January the least reliable (68.8%).
- Cancellations peaked in December, when 4.7% of flights were cancelled.
- Flights scheduled to depart before 6 am were the most punctual (87.1% on time); flights scheduled to depart 6 pm to 7 pm were the least (51.7%).
Airlines at DLH
Ranked by on-time arrival
| Airline | On time | Cancelled | 60+ min late | Avg delay when late | Departures |
|---|---|---|---|---|---|
| SkyWest AirlinesSold as United Express, Delta Connection, American Eagle, Alaska | 72.9% | 3.7% | 11.3% | 108 min | 2,353 |
| Republic AirwaysSold as American Eagle, Delta Connection, United Express | 71.5% | 4.1% | 12.2% | 89 min | 123 |
| Delta Air Lines | Insufficient sample | 2 | |||
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On-time rate by departure hour
Share of scheduled flights on time DLH average 72.9%
Show as table
| Period | On time | Flights |
|---|---|---|
| Departing before 6 am | 87.1% | 372 |
| Departing 6 am to 7 am | Insufficient sample | 25 |
| Departing 7 am to 8 am | 74.2% | 399 |
| Departing 8 am to 9 am | 81.7% | 246 |
| Departing 9 am to 10 am | 90.9% | 55 |
| Departing 10 am to 11 am | Insufficient sample | 35 |
| Departing 11 am to noon | 68.4% | 412 |
| Departing noon to 1 pm | 78.4% | 153 |
| Departing 2 pm to 3 pm | Insufficient sample | 37 |
| Departing 3 pm to 4 pm | 55.7% | 323 |
| Departing 4 pm to 5 pm | 71.1% | 301 |
| Departing 6 pm to 7 pm | 51.7% | 120 |
Best and worst months at DLH
Share of scheduled flights on time 12-month average 72.9%
Show as table
| Period | On time | Flights |
|---|---|---|
| January | 68.8% | 417 |
| February | 83.1% | 467 |
| March | 74.7% | 554 |
| April | 79.6% | 584 |
| May | 83.6% | 608 |
| June | 74.5% | 595 |
| July | 74.8% | 663 |
| August | 73.8% | 679 |
| September | 84.4% | 641 |
| October | 90.5% | 588 |
| November | 83.1% | 527 |
| December | 70.0% | 494 |
Month by month, last 12 months
Share of scheduled flights on time U.S. average 75.6%
Show as table
| Period | On time | Flights |
|---|---|---|
| Sep 2025 | 78.2% | 216 |
| Oct 2025 | 86.6% | 187 |
| Nov 2025 | 74.9% | 191 |
| Dec 2025 | 61.0% | 172 |
| Jan 2026 | 57.3% | 117 |
| Feb 2026 | 77.1% | 179 |
| Mar 2026 | 61.2% | 209 |
| Apr 2026 | 67.2% | 244 |
| May 2026 | 83.3% | 257 |
| Jun 2026 | 74.1% | 216 |
| Jul 2026 | 71.3% | 244 |
| Aug 2026 | 74.0% | 246 |
Busiest routes from DLH
| To | On time | Cancelled | Airlines | Flights |
|---|---|---|---|---|
| Minneapolis (MSP) | 80.3% | 2.6% | 2 | 1,239 |
| Chicago (ORD) | 65.5% | 4.8% | 2 | 1,239 |
Sources & data dates
- Source
- U.S. DOT Bureau of Transportation Statistics, Reporting Carrier On-Time Performance (1987-present)
- Period
- September 2025 to August 2026 (12 months); month-of-year patterns September 2023 to August 2026
- Data through
- August 2026
- Processed
- 2026-11-03
- Scope
- Scheduled nonstop domestic departures from Duluth, MN (DLH) by airlines that report to the DOT.
- Method
- Rates use all scheduled flights as the denominator; cancelled and diverted flights count as not on time. Figures based on fewer than 50 scheduled flights are suppressed. Full methodology.