AS340
AS340 (Alaska Airlines) is a multi-stop service on 9 routes, busiest Portland to Chicago. Of 338 departures recorded from October 2024 to July 2026, 80.7% left on time, according to the US BTS.
- On-time departures80.7%of 338 flights
- Average delay8.3 min
- July 202631▲ 0.0%vs July 2025
- Cancelled0.6%
- Legs flown under this number9
Recorded departures by month
All legs under this number combined; see the leg table.
Months without data are left blank.
The most recent periods15 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 5 | 25 | ▲ 400.0% |
| February | – | 25 | – |
| March | 1 | 28 | ▲ 2,700.0% |
| April | – | 30 | – |
| May | 17 | 12 | ▼ 29.4% |
| June | 30 | 21 | ▼ 30.0% |
| July | 31 | 31 | 0.0% |
| August | 19 | – | – |
| September | – | – | – |
| October | – | – | in progress |
| November | 4 | – | – |
| December | 1 | – | – |
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 periods15 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | 60.0% | 84.0% | ▲ 40.0% |
| February | – | 72.0% | – |
| March | 100.0% | 64.3% | ▼ 35.7% |
| April | – | 80.0% | – |
| May | 88.2% | 100.0% | ▲ 13.3% |
| June | 83.3% | 90.0% | ▲ 8.0% |
| July | 80.0% | 83.9% | ▲ 4.8% |
| August | 68.4% | – | – |
| September | – | – | – |
| October | – | – | in progress |
| November | 0.0% | – | – |
| December | 100.0% | – | – |
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 periods15 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 0 | 0 | – |
| February | – | 0 | – |
| March | 0 | 0 | – |
| April | – | 0 | – |
| May | 0 | 0 | – |
| June | 0 | 1 | – |
| July | 1 | 0 | ▼ 100.0% |
| August | 0 | – | – |
| September | – | – | – |
| October | – | – | 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 99.4% 336
- Cancelled 0.6% 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
5| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| PDX ORD Portland International Airport – Chicago O'Hare International Airport | 2,792 | 6.3 min | 87.9% | 91 |
| SEA PIT Seattle–Tacoma International Airport – Pittsburgh International Airport | 3,411 | 13.5 min | 76.5% | 69 |
| PDX ONT Portland International Airport – Ontario International Airport | 1,351 | 9.9 min | 73.9% | 65 |
| SEA DFW Seattle–Tacoma International Airport – Dallas Fort Worth International Airport | 2,668 | 3.7 min | 86.3% | 52 |
| RDM SEA Roberts Field – Seattle–Tacoma International Airport | 366 | 10.5 min | 70.6% | 34 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 18 | 18 | 100.0% | 0 |
| November 2024 | 25 | 25 | 88.0% | 0 |
| December 2024 | 15 | 15 | 80.0% | 0 |
| January 2025 | 5 | 5 | 60.0% | 0 |
| March 2025 | 1 | 1 | 100.0% | 0 |
| May 2025 | 17 | 17 | 88.2% | 0 |
| June 2025 | 30 | 30 | 83.3% | 0 |
| July 2025 | 31 | 30 | 80.0% | 1 |
| August 2025 | 19 | 19 | 68.4% | 0 |
| November 2025 | 4 | 4 | 0.0% | 0 |
| December 2025 | 1 | 1 | 100.0% | 0 |
| January 2026 | 25 | 25 | 84.0% | 0 |
| February 2026 | 25 | 25 | 72.0% | 0 |
| March 2026 | 28 | 28 | 64.3% | 0 |
| April 2026 | 30 | 30 | 80.0% | 0 |
| May 2026 | 12 | 12 | 100.0% | 0 |
| June 2026 | 21 | 20 | 90.0% | 1 |
| July 2026 | 31 | 31 | 83.9% | 0 |