Airport reliability
Flagstaff (FLG) on-time performance
How reliably flights leave Flagstaff, AZ (FLG) and reach their destinations, by airline, departure hour and month, September 2025 to August 2026.
Flagstaff, AZ1,651 departures in 12 months
- Departures on time
- 75.6% U.S. average 75.6%
- Cancelled
- 2.8% U.S. average 1.9%
- 60+ minutes late
- 11.7% U.S. average 8.1%
- Scheduled departures
- 1,651 12 months
What this means
FLG departures beat the U.S. average.
- 75.6% of the 1,651 scheduled departures from Flagstaff (FLG) arrived at their destination on time, about the same as the U.S. average of 75.6%.
- 2.8% of departures were cancelled (U.S. average 1.9%), and 11.7% arrived an hour or more late.
- Flights arriving at FLG were on time 74.8% of the time.
- Over the last 3 years, September was the most reliable month for departures from FLG (87.7% on time) and March the least reliable (69.5%).
- Cancellations peaked in July, when 3.3% of flights were cancelled.
- Flights scheduled to depart 6 am to 7 am were the most punctual (85.3% on time); flights scheduled to depart noon to 1 pm were the least (64.9%).
Airlines at FLG
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 | 77.6% | 2.6% | 10.4% | 119 min | 1,548 |
| American Airlines | 45.6% | 5.8% | 31.1% | 169 min | 103 |
Tap a heading to sort.
On-time rate by departure hour
Share of scheduled flights on time FLG average 75.6%
Show as table
| Period | On time | Flights |
|---|---|---|
| Departing 6 am to 7 am | 85.3% | 150 |
| Departing 7 am to 8 am | 82.6% | 218 |
| Departing 8 am to 9 am | Insufficient sample | 48 |
| Departing 9 am to 10 am | Insufficient sample | 8 |
| Departing 10 am to 11 am | 83.2% | 149 |
| Departing 11 am to noon | 77.6% | 241 |
| Departing noon to 1 pm | 64.9% | 302 |
| Departing 1 pm to 2 pm | 70.1% | 231 |
| Departing 4 pm to 5 pm | 80.2% | 91 |
| Departing 5 pm to 6 pm | 72.9% | 96 |
| Departing 6 pm to 7 pm | 57.9% | 57 |
| Departing 7 pm to 8 pm | 78.3% | 60 |
Best and worst months at FLG
Share of scheduled flights on time 12-month average 75.6%
Show as table
| Period | On time | Flights |
|---|---|---|
| January | 79.5% | 347 |
| February | 75.2% | 359 |
| March | 69.5% | 449 |
| April | 80.8% | 468 |
| May | 81.5% | 471 |
| June | 76.6% | 389 |
| July | 76.3% | 396 |
| August | 86.6% | 372 |
| September | 87.7% | 415 |
| October | 81.9% | 540 |
| November | 79.5% | 526 |
| December | 83.7% | 471 |
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 | 82.0% | 139 |
| Oct 2025 | 79.8% | 168 |
| Nov 2025 | 75.0% | 160 |
| Dec 2025 | 85.5% | 152 |
| Jan 2026 | 74.8% | 115 |
| Feb 2026 | 64.8% | 105 |
| Mar 2026 | 69.4% | 124 |
| Apr 2026 | 84.1% | 164 |
| May 2026 | 69.6% | 161 |
| Jun 2026 | 70.0% | 120 |
| Jul 2026 | 59.3% | 123 |
| Aug 2026 | 85.8% | 120 |
Busiest routes from FLG
| To | On time | Cancelled | Airlines | Flights |
|---|---|---|---|---|
| Phoenix (PHX) | 79.6% | 2.7% | 1 | 1,216 |
| Dallas/Fort Worth (DFW) | 64.4% | 3.0% | 2 | 435 |
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 Flagstaff, AZ (FLG) 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.