AS353
AS353 (Alaska Airlines) is a multi-stop service on 3 routes, busiest Portland to Kahului. Of 581 departures recorded from October 2024 to July 2026, 79.6% left on time, according to the US BTS.
- On-time departures79.6%of 581 flights
- Average delay7.9 min
- July 202631▲ 0.0%vs July 2025
- Cancelled0.3%
- 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 | 24 | 30 | ▲ 25.0% |
| February | 24 | 28 | ▲ 16.7% |
| March | 18 | 31 | ▲ 72.2% |
| April | – | 30 | – |
| May | 14 | 31 | ▲ 121.4% |
| June | 29 | 30 | ▲ 3.4% |
| July | 31 | 31 | 0.0% |
| August | 31 | – | – |
| September | 30 | – | – |
| October | 30 | – | in progress |
| November | 29 | – | – |
| December | 31 | – | – |
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 | 75.0% | 83.3% | ▲ 11.1% |
| February | 58.3% | 78.6% | ▲ 34.7% |
| March | 55.6% | 83.9% | ▲ 51.0% |
| April | – | 100.0% | – |
| May | 64.3% | 80.7% | ▲ 25.4% |
| June | 82.8% | 83.3% | ▲ 0.7% |
| July | 80.0% | 74.2% | ▼ 7.3% |
| August | 80.7% | – | – |
| September | 90.0% | – | – |
| October | 79.3% | – | in progress |
| November | 86.2% | – | – |
| December | 83.9% | – | – |
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 | 0 | 0 | – |
| March | 0 | 0 | – |
| April | – | 0 | – |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | 1 | 0 | ▼ 100.0% |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 1 | – | 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 99.7% 579
- Cancelled 0.3% 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
2| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| PDX OGG Portland International Airport – Kahului International Airport | 4,123 | 5.2 min | 83.2% | 412 |
| ORD SEA Chicago O'Hare International Airport – Seattle–Tacoma International Airport | 2,762 | 15.5 min | 70.3% | 145 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 20 | 20 | 55.0% | 0 |
| November 2024 | 28 | 28 | 82.1% | 0 |
| December 2024 | 31 | 31 | 83.9% | 0 |
| January 2025 | 24 | 24 | 75.0% | 0 |
| February 2025 | 24 | 24 | 58.3% | 0 |
| March 2025 | 18 | 18 | 55.6% | 0 |
| May 2025 | 14 | 14 | 64.3% | 0 |
| June 2025 | 29 | 29 | 82.8% | 0 |
| July 2025 | 31 | 30 | 80.0% | 1 |
| August 2025 | 31 | 31 | 80.7% | 0 |
| September 2025 | 30 | 30 | 90.0% | 0 |
| October 2025 | 30 | 29 | 79.3% | 1 |
| November 2025 | 29 | 29 | 86.2% | 0 |
| December 2025 | 31 | 31 | 83.9% | 0 |
| January 2026 | 30 | 30 | 83.3% | 0 |
| February 2026 | 28 | 28 | 78.6% | 0 |
| March 2026 | 31 | 31 | 83.9% | 0 |
| April 2026 | 30 | 30 | 100.0% | 0 |
| May 2026 | 31 | 31 | 80.7% | 0 |
| June 2026 | 30 | 30 | 83.3% | 0 |
| July 2026 | 31 | 31 | 74.2% | 0 |