Flight profile · Alaska Airlines
AS1421
Houston (IAH) to Portland (PDX) · scheduled 5:50 PM – 8:15 PM
How AS1421 performs
399 operations, 2025-05-15 to 2026-06-30.
Source: US DOT Bureau of Transportation Statistics · 399 operations between 2025-05-15 to 2026-06-30
Against the rest of the route
| On time | Cancelled | Median delay | Severe | Flights | |
|---|---|---|---|---|---|
| AS1421 | 79.2% | 1.00% | -5 min | 6.3% | 399 |
| Alaska Airlines on IAH → PDX | 79.2% | 1.00% | -5 min | 6.3% | 400 |
| All IAH → PDX flights | 79.4% | 0.83% | -6 min | 7.3% | 3,010 |
Source: FlyerIntel analysis of US DOT BTS data · 2025-05-15 to 2026-06-30
Other routes AS1421 has flown
A flight number is a slot in a schedule, and carriers reassign it. These are the other city pairs this number served in the analysis period.
| Route | Operated | Flights | On time |
|---|---|---|---|
| SFO→SEA San Francisco to Seattle | 2024-05-18 – 2024-06-08 | 4 | — |
Because the same number has served different journeys, the statistics above describe only the route AS1421 currently operates. Blending them would produce an average of two different flights.
Data and methodology
Calculated by FlyerIntel from 399 records of AS1421 operating IAH → PDX, published by the US DOT Bureau of Transportation Statistics. A flight counts as delayed when it arrives 15 or more minutes after schedule. Cancelled and diverted flights are excluded from the on-time rate and reported separately. Flight numbers are resolved as carrier plus number plus route, because the same number serves different routes over time.