Airports › Seattle (SEA) › January 2024
Airport month · January 2024
Seattle/Tacoma International in January 2024
BTS: A flight is counted as on time if it arrived less than 15 minutes after its scheduled time. Only carriers with at least 0.5 percent of domestic scheduled passenger revenue report.
In January 2024, reporting carriers scheduled 11,751 domestic departures from Seattle/Tacoma International (SEA). 67.9% left less than 15 minutes late and 68.3% reached their destination on time; 8.2% were cancelled.
Nationally that month, 74.0% of flights departed on time and 72.9% arrived on time, so SEA departures were 6.1 points below the national departure figure.
Flights arriving at SEA that month were on time 70.7% of the time (11,757 scheduled arrivals).
Of the delay minutes that carriers assigned to a BTS cause category that month, air carrier 41%, late-arriving aircraft 34% and extreme weather 13%.
- On time 68.3%
- Arrived 15+ minutes late 22.7%
- Cancelled 8.2%
- Diverted 0.8%
January 2024 against a year earlier, the airport's year and the nation
| Measure | Jan 2024 | Year earlier | SEA, 12 months to Jul 2026 | All reported flights, Jan 2024 |
|---|---|---|---|---|
| Departed on time | 67.9% | — | 78.2% | 74.0% |
| Arrived on time | 68.3% | — | 78.6% | 72.9% |
| Cancelled | 8.2% | — | 0.9% | 3.7% |
| Average departure delay (late minutes only) | 19.0 min | — | 13.2 min | 18.7 min |
| Scheduled departures a day | 392 | — | 452 | 18,242 |
| Scheduled departures | 11,751 | — | 164,821 | 547,271 |
Airlines that month
| Reporting carrier | Flights | Share | On time | Avg arrival delay | Cancelled |
|---|---|---|---|---|---|
| AS Alaska Airlines | 5,595 | 48% | 57.6% | 13.2 min | 15.0% |
| DL Delta Air Lines | 2,361 | 20% | 82.9% | 0.9 min | 0.3% |
| OO SkyWest Airlines | 1,986 | 17% | 73.5% | 16.1 min | 2.8% |
| WN Southwest Airlines | 575 | 5% | 80.3% | 4.3 min | 0.5% |
| UA United Airlines | 571 | 5% | 75.3% | 7.5 min | 9.8% |
| AA American Airlines | 384 | 3% | 75.0% | 15.0 min | 0.5% |
| F9 Frontier Airlines | 70 | 1% | 91.4% | -5.8 min | 0.0% |
| B6 JetBlue Airways | 62 | 1% | 61.3% | 21.4 min | 0.0% |
| HA Hawaiian Airlines | 62 | 1% | 59.7% | 16.3 min | 0.0% |
| NK Spirit Airlines | 62 | 1% | 83.9% | -5.5 min | 0.0% |
| MQ Envoy Air | 23 | 0% | 60.9% | 24.9 min | 0.0% |
Busiest routes that month
| Route | Cities | Flights | On time | Avg arrival delay | Cancelled |
|---|---|---|---|---|---|
| SEA–PHX | Seattle to Phoenix | 543 | 70.5% | 9.8 min | 7.9% |
| SEA–LAS | Seattle to Las Vegas | 539 | 70.3% | 9.2 min | 6.3% |
| SEA–LAX | Seattle to Los Angeles | 527 | 78.0% | 1.4 min | 7.8% |
| SEA–ANC | Seattle to Anchorage | 517 | 60.0% | 13.5 min | 7.4% |
| SEA–SFO | Seattle to San Francisco | 487 | 67.1% | 13.3 min | 6.6% |
| SEA–DEN | Seattle to Denver | 482 | 74.3% | 5.7 min | 7.3% |
| SEA–PDX | Seattle to Portland | 478 | 65.7% | 16.5 min | 8.4% |
| SEA–GEG | Seattle to Spokane | 396 | 66.2% | 20.3 min | 5.3% |
| SEA–SAN | Seattle to San Diego | 351 | 67.8% | 6.4 min | 11.4% |
| SEA–SNA | Seattle to Santa Ana | 339 | 82.6% | -1.2 min | 0.9% |
| SEA–SMF | Seattle to Sacramento | 324 | 75.6% | 9.3 min | 3.1% |
| SEA–DFW | Seattle to Dallas/Fort Worth | 320 | 70.3% | 19.4 min | 6.9% |
By scheduled departure hour
Delay causes
Questions and answers
How many flights left SEA on time in January 2024?
67.9% of 11,751 scheduled domestic departures left less than 15 minutes late, and 68.3% reached their destination on time. The national figures that month were 74.0% and 72.9%.
How does that compare with a year earlier?
January 2023 is outside the 36 months on file, or the airport had too few reported flights that month.
Provenance
Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for January 2024; public domain. Domestic scheduled flights by reporting carriers, totals and averages only. The site's data runs through July 2026. Full record for SEA · methodology · corrections.