Airport reliability
Bellingham (BLI) on-time performance
How reliably flights leave Bellingham, WA (BLI) and reach their destinations, by airline, departure hour and month, September 2025 to August 2026.
Bellingham, WA2,210 departures in 12 months
- Departures on time
- 83.2% U.S. average 75.6%
- Cancelled
- 1.4% U.S. average 1.9%
- 60+ minutes late
- 4.8% U.S. average 8.1%
- Scheduled departures
- 2,210 12 months
What this means
BLI departures beat the U.S. average.
- 83.2% of the 2,210 scheduled departures from Bellingham (BLI) arrived at their destination on time, 7.6 points higher than the U.S. average of 75.6%.
- 1.4% of departures were cancelled (U.S. average 1.9%), and 4.8% arrived an hour or more late.
- Flights arriving at BLI were on time 83.0% of the time.
- Among airlines with at least 300 departures, Allegiant Air was the most punctual from BLI (86.8%) and SkyWest Airlines the least (80.8%).
- Over the last 3 years, May was the most reliable month for departures from BLI (88.3% on time) and January the least reliable (79.3%).
- Cancellations peaked in November, when 3.4% of flights were cancelled.
- Flights scheduled to depart 7 am to 8 am were the most punctual (93.4% on time); flights scheduled to depart 4 pm to 5 pm were the least (73.1%).
Airlines at BLI
Ranked by on-time arrival
| Airline | On time | Cancelled | 60+ min late | Avg delay when late | Departures |
|---|---|---|---|---|---|
| Allegiant Air | 86.8% | 0.7% | 5.5% | 123 min | 858 |
| SkyWest AirlinesSold as United Express, Delta Connection, American Eagle, Alaska | 80.8% | 1.9% | 4.3% | 53 min | 1,352 |
Tap a heading to sort.
On-time rate by departure hour
Share of scheduled flights on time BLI average 83.2%
Show as table
| Period | On time | Flights |
|---|---|---|
| Departing before 6 am | 88.7% | 265 |
| Departing 6 am to 7 am | 88.0% | 175 |
| Departing 7 am to 8 am | 93.4% | 152 |
| Departing 8 am to 9 am | 89.5% | 344 |
| Departing 9 am to 10 am | 83.9% | 143 |
| Departing 10 am to 11 am | Insufficient sample | 41 |
| Departing 11 am to noon | 84.4% | 64 |
| Departing noon to 1 pm | 79.1% | 134 |
| Departing 1 pm to 2 pm | 73.3% | 288 |
| Departing 2 pm to 3 pm | 82.2% | 107 |
| Departing 3 pm to 4 pm | 77.0% | 152 |
| Departing 4 pm to 5 pm | 73.1% | 134 |
| Departing 5 pm to 6 pm | 73.3% | 120 |
| Departing 6 pm to 7 pm | Insufficient sample | 37 |
| Departing 7 pm to 8 pm | 92.5% | 53 |
| Departing 8 pm to 9 pm | Insufficient sample | 1 |
Best and worst months at BLI
Share of scheduled flights on time 12-month average 83.2%
Show as table
| Period | On time | Flights |
|---|---|---|
| January | 79.3% | 556 |
| February | 83.7% | 526 |
| March | 83.9% | 660 |
| April | 87.6% | 647 |
| May | 88.3% | 649 |
| June | 83.5% | 654 |
| July | 85.3% | 685 |
| August | 80.5% | 559 |
| September | 80.6% | 558 |
| October | 84.4% | 622 |
| November | 86.2% | 565 |
| December | 81.6% | 629 |
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 | 85.2% | 189 |
| Oct 2025 | 85.6% | 202 |
| Nov 2025 | 85.0% | 173 |
| Dec 2025 | 76.4% | 216 |
| Jan 2026 | 83.4% | 163 |
| Feb 2026 | 89.8% | 147 |
| Mar 2026 | 86.7% | 196 |
| Apr 2026 | 89.0% | 200 |
| May 2026 | 82.9% | 193 |
| Jun 2026 | 81.7% | 175 |
| Jul 2026 | 79.7% | 182 |
| Aug 2026 | 73.6% | 174 |
Busiest routes from BLI
| To | On time | Cancelled | Airlines | Flights |
|---|---|---|---|---|
| Seattle (SEA) | 79.3% | 2.1% | 1 | 1,186 |
| Las Vegas (LAS) | 86.1% | 1.4% | 1 | 431 |
| Portland (PDX) | 91.6% | 0.6% | 1 | 166 |
| Phoenix (AZA) | 87.4% | 0.0% | 1 | 143 |
| Palm Springs (PSP) | 88.7% | 0.0% | 1 | 106 |
| Oakland (OAK) | 88.6% | 0.0% | 1 | 88 |
| Burbank (BUR) | 85.2% | 0.0% | 1 | 54 |
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 Bellingham, WA (BLI) 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.