AS204
AS204 (Alaska Airlines) is a multi-stop service on 3 routes, busiest Seattle to Kailua-Kona. Of 428 departures recorded from October 2024 to July 2026, 85.0% left on time, according to the US BTS.
- On-time departures85.0%of 428 flights
- Average delay4.7 min
- July 202631
- Cancelled0.5%
- Legs flown under this number3
Recorded departures by month
All legs under this number combined; see the leg table.
Months without data are left blank.
The most recent periods18 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 23 | 20 | ▼ 13.0% |
| February | 21 | 23 | ▲ 9.5% |
| March | 26 | 30 | ▲ 15.4% |
| April | 21 | 19 | ▼ 9.5% |
| May | 17 | 31 | ▲ 82.4% |
| June | 11 | 30 | ▲ 172.7% |
| July | – | 31 | – |
| August | 12 | – | – |
| September | 30 | – | – |
| October | 3 | – | in progress |
| November | 9 | – | – |
| December | 15 | – | – |
according to the US BTS · October 2024 → July 2026
On-time departures by month
Months without data are left blank.
On time = departure within 15 minutes of schedule. Non-cancelled flights with a recorded delay only.
The most recent periods18 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | 100.0% | 75.0% | ▼ 25.0% |
| February | 95.0% | 78.3% | ▼ 17.6% |
| March | 96.0% | 80.0% | ▼ 16.7% |
| April | 95.2% | 73.7% | ▼ 22.6% |
| May | 100.0% | 71.0% | ▼ 29.0% |
| June | 100.0% | 60.0% | ▼ 40.0% |
| July | – | 58.1% | – |
| August | 83.3% | – | – |
| September | 100.0% | – | – |
| October | 100.0% | – | in progress |
| November | 100.0% | – | – |
| December | 93.3% | – | – |
according to the US BTS · October 2024 → July 2026
Average departure delay by month
Months without data are left blank.
according to the US BTS · October 2024 → July 2026
Cancelled departures by month
Months without data are left blank.
The most recent periods18 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 0 | 0 | – |
| February | 1 | 0 | ▼ 100.0% |
| March | 1 | 0 | ▼ 100.0% |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | – | 0 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 0 | – | – |
according to the US BTS · October 2024 → July 2026
This is a historical record of departures already flown, not a forecast for your flight.
Several legs: the headline figure averages all of them. See the leg table.
Cancellation share
- Not cancelled 99.5% 426
- Cancelled 0.5% 2
Share of all recorded flights in the period, all legs. · Oct 12, 2024 → Jul 31, 2026
On time, leg by leg
Departures within 15 minutes of schedule; small figure = departures recorded.
Legs flown under this number
3| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| SEA KOA Seattle–Tacoma International Airport – Ellison Onizuka Kona International Airport at Keāhole | 4,327 | 14.3 min | 73.1% | 208 |
| SMF SEA Sacramento International Airport – Seattle–Tacoma International Airport | 975 | -3.4 min | 96.5% | 175 |
| FAI ANC Fairbanks International Airport – Ted Stevens Anchorage International Airport | 418 | -8.8 min | 95.6% | 45 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 20 | 20 | 100.0% | 0 |
| November 2024 | 21 | 21 | 90.5% | 0 |
| December 2024 | 15 | 15 | 93.3% | 0 |
| January 2025 | 23 | 23 | 100.0% | 0 |
| February 2025 | 21 | 20 | 95.0% | 1 |
| March 2025 | 26 | 25 | 96.0% | 1 |
| April 2025 | 21 | 21 | 95.2% | 0 |
| May 2025 | 17 | 17 | 100.0% | 0 |
| June 2025 | 11 | 11 | 100.0% | 0 |
| August 2025 | 12 | 12 | 83.3% | 0 |
| September 2025 | 30 | 30 | 100.0% | 0 |
| October 2025 | 3 | 3 | 100.0% | 0 |
| November 2025 | 9 | 9 | 100.0% | 0 |
| December 2025 | 15 | 15 | 93.3% | 0 |
| January 2026 | 20 | 20 | 75.0% | 0 |
| February 2026 | 23 | 23 | 78.3% | 0 |
| March 2026 | 30 | 30 | 80.0% | 0 |
| April 2026 | 19 | 19 | 73.7% | 0 |
| May 2026 | 31 | 31 | 71.0% | 0 |
| June 2026 | 30 | 30 | 60.0% | 0 |
| July 2026 | 31 | 31 | 58.1% | 0 |