AS453
AS453 (Alaska Airlines) flies Houston to Seattle. Of 636 departures recorded from October 2024 to July 2026, 89.0% left on time, according to the US BTS.
according to the US BTS · Oct 12, 2024 → Jul 31, 2026 domestic flights only
Recorded departures by month
Partial coverage: domestic flights only · 22 of 22 periods have data
The most recent periods19 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 31 | 31 | 0.0% |
| February | 28 | 28 | 0.0% |
| March | 31 | 31 | 0.0% |
| April | 30 | 30 | 0.0% |
| May | 30 | 26 | ▼ 13.3% |
| June | 30 | 27 | ▼ 10.0% |
| July | 31 | 31 | 0.0% |
| August | 28 | – | – |
| September | 21 | – | – |
| October | 30 | – | in progress |
| November | 30 | – | – |
| December | 31 | – | – |
| Year to date (Jan–Jul) | 211 | 204 | ▼ 3.3% |
according to the US BTS · October 2024 → July 2026
On-time departures by month
Partial coverage: domestic flights only · 22 of 22 periods have data
On time = departure within 15 minutes of schedule. Non-cancelled flights with a recorded delay only.
The most recent periods19 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | 89.7% | 73.3% | ▼ 18.2% |
| February | 85.7% | 92.9% | ▲ 8.3% |
| March | 93.6% | 80.7% | ▼ 13.8% |
| April | 96.4% | 90.0% | ▼ 6.7% |
| May | 89.7% | 84.6% | ▼ 5.6% |
| June | 76.7% | 100.0% | ▲ 30.4% |
| July | 83.3% | 93.3% | ▲ 12.0% |
| August | 96.4% | – | – |
| September | 100.0% | – | – |
| October | 93.1% | – | in progress |
| November | 90.0% | – | – |
| December | 77.4% | – | – |
| Year-to-date average (Jan–Jul) | 87.9% | 87.8% | 0.0% |
according to the US BTS · October 2024 → July 2026
Average departure delay by month
Partial coverage: domestic flights only · 22 of 22 periods have data
according to the US BTS · October 2024 → July 2026
Cancelled departures by month
Partial coverage: domestic flights only · 22 of 22 periods have data
The most recent periods19 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 2 | 1 | ▼ 50.0% |
| February | 0 | 0 | – |
| March | 0 | 0 | – |
| April | 2 | 0 | ▼ 100.0% |
| May | 1 | 0 | ▼ 100.0% |
| June | 0 | 0 | – |
| July | 1 | 1 | 0.0% |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 1 | – | in progress |
| November | 0 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 6 | 2 | ▼ 66.7% |
according to the US BTS · October 2024 → July 2026
This is not a forecast
This is a historical record of departures already flown, not a forecast for your flight.
Cancellation share
- Not cancelled 98.6% 627
- Cancelled 1.4% 9
Share of all recorded flights in the period, all legs. · Oct 12, 2024 → Jul 31, 2026
Legs flown under this number
1| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| IAH SEA George Bush Intercontinental Airport – Seattle–Tacoma International Airport | 3,013 | 3.5 min | 89.0% | 636 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 20 | 20 | 90.0% | 0 |
| November 2024 | 30 | 30 | 100.0% | 0 |
| December 2024 | 31 | 31 | 87.1% | 0 |
| January 2025 | 31 | 29 | 89.7% | 2 |
| February 2025 | 28 | 28 | 85.7% | 0 |
| March 2025 | 31 | 31 | 93.6% | 0 |
| April 2025 | 30 | 28 | 96.4% | 2 |
| May 2025 | 30 | 29 | 89.7% | 1 |
| June 2025 | 30 | 30 | 76.7% | 0 |
| July 2025 | 31 | 30 | 83.3% | 1 |
| August 2025 | 28 | 28 | 96.4% | 0 |
| September 2025 | 21 | 21 | 100.0% | 0 |
| October 2025 | 30 | 29 | 93.1% | 1 |
| November 2025 | 30 | 30 | 90.0% | 0 |
| December 2025 | 31 | 31 | 77.4% | 0 |
| January 2026 | 31 | 30 | 73.3% | 1 |
| February 2026 | 28 | 28 | 92.9% | 0 |
| March 2026 | 31 | 31 | 80.7% | 0 |
| April 2026 | 30 | 30 | 90.0% | 0 |
| May 2026 | 26 | 26 | 84.6% | 0 |
| June 2026 | 27 | 27 | 100.0% | 0 |
| July 2026 | 31 | 30 | 93.3% | 1 |