AS640
AS640 (Alaska Airlines) is a multi-stop service on 4 routes, busiest Tampa to Seattle. Of 350 departures recorded from October 2024 to July 2026, 81.1% left on time, according to the US BTS.
- On-time departures81.1%of 350 flights
- Average delay10.1 min
- July 202631
- Cancelled0.3%
- Legs flown under this number4
Recorded departures by month
All legs under this number combined; see the leg table.
Months without data are left blank.
The most recent periods13 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 5 | 31 | ▲ 520.0% |
| February | 10 | 28 | ▲ 180.0% |
| March | 10 | 29 | ▲ 190.0% |
| April | – | 27 | – |
| May | – | 31 | – |
| June | 1 | 30 | ▲ 2,900.0% |
| July | – | 31 | – |
| August | – | – | – |
| September | – | – | – |
| October | – | – | in progress |
| November | 9 | – | – |
| December | 30 | – | – |
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 periods13 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | 100.0% | 83.9% | ▼ 16.1% |
| February | 80.0% | 92.9% | ▲ 16.1% |
| March | 50.0% | 79.3% | ▲ 58.6% |
| April | – | 81.5% | – |
| May | – | 80.7% | – |
| June | 100.0% | 80.0% | ▼ 20.0% |
| July | – | 77.4% | – |
| August | – | – | – |
| September | – | – | – |
| October | – | – | in progress |
| November | 100.0% | – | – |
| December | 75.9% | – | – |
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 periods13 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 0 | 0 | – |
| February | 0 | 0 | – |
| March | 0 | 0 | – |
| April | – | 0 | – |
| May | – | 0 | – |
| June | 0 | 0 | – |
| July | – | 0 | – |
| August | – | – | – |
| September | – | – | – |
| October | – | – | in progress |
| November | 0 | – | – |
| December | 1 | – | – |
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% 349
- Cancelled 0.3% 1
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 |
|---|---|---|---|---|
| TPA SEA Tampa International Airport – Seattle–Tacoma International Airport | 4,051 | 9.4 min | 82.0% | 246 |
| SEA PHX Seattle–Tacoma International Airport – Phoenix Sky Harbor International Airport | 1,782 | 10.4 min | 81.9% | 83 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 20 | 20 | 90.0% | 0 |
| November 2024 | 29 | 29 | 86.2% | 0 |
| December 2024 | 29 | 29 | 69.0% | 0 |
| January 2025 | 5 | 5 | 100.0% | 0 |
| February 2025 | 10 | 10 | 80.0% | 0 |
| March 2025 | 10 | 10 | 50.0% | 0 |
| June 2025 | 1 | 1 | 100.0% | 0 |
| November 2025 | 9 | 9 | 100.0% | 0 |
| December 2025 | 30 | 29 | 75.9% | 1 |
| January 2026 | 31 | 31 | 83.9% | 0 |
| February 2026 | 28 | 28 | 92.9% | 0 |
| March 2026 | 29 | 29 | 79.3% | 0 |
| April 2026 | 27 | 27 | 81.5% | 0 |
| May 2026 | 31 | 31 | 80.7% | 0 |
| June 2026 | 30 | 30 | 80.0% | 0 |
| July 2026 | 31 | 31 | 77.4% | 0 |