Route
SEA → SMF
Seattle–Tacoma International Airport Sacramento International Airport
How punctual is this route?
- On-time arrivals
- 82.1%
- Less than 15 minutes late
- Cancelled
- 0.4%
- Of scheduled flights
- Average delay when late
- 57 min
- Flights arriving 15+ minutes late
- Flights tracked
- 4,387
- Scheduled flights in the period
What caused the delays
- Airline (crew, maintenance, cleaning) 42%
- Late-arriving aircraft 40%
- Extreme weather 9%
- Air traffic control & airport 9%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 84.1% | 398 |
| October 2025 | 84.9% | 375 |
| November 2025 | 84.1% | 350 |
| December 2025 | 73.4% | 294 |
| January 2026 | 84.2% | 311 |
| February 2026 | 85.0% | 281 |
| March 2026 | 81.0% | 350 |
| April 2026 | 87.5% | 369 |
| May 2026 | 85.3% | 389 |
| June 2026 | 83.8% | 408 |
| July 2026 | 74.3% | 429 |
| August 2026 | 78.4% | 433 |
Source: U.S. DOT Bureau of Transportation Statistics on-time data, September 2025 – August 2026. Covers flights operated by reporting U.S. carriers. About our data
Airlines on this route
| Airline | Flights | On time | Cancelled | Avg. delay when late |
|---|---|---|---|---|
| SkyWest Airlines | 1,839 | 89.1% | 0.3% | 70 min |
| Alaska Airlines | 1,409 | 80.2% | 0.6% | 51 min |
| Southwest Airlines | 1,139 | 73.3% | 0.4% | 53 min |
Delay odds by flight
How often each flight number arrived 15 or more minutes late over the last year.
-
OO3881
9% late · 359 flights
-
OO4125
9% late · 349 flights
-
OO4131
12% late · 328 flights
-
OO4043
11% late · 316 flights
-
AS681
18% late · 278 flights
-
OO4153
13% late · 141 flights
-
OO3505
6% late · 126 flights
-
AS763
26% late · 98 flights
-
AS1380
33% late · 70 flights
-
AS1428
26% late · 70 flights
-
AS682
4% late · 70 flights
-
AS638
29% late · 69 flights
-
OO3329
15% late · 66 flights
-
AS321
32% late · 60 flights
-
WN3375
12% late · 60 flights
-
WN3629
2% late · 60 flights
-
WN2862
4% late · 58 flights
-
WN3494
11% late · 58 flights
-
AS1194
19% late · 55 flights
-
AS672
19% late · 53 flights
-
WN1601
28% late · 53 flights
-
AS619
12% late · 52 flights
-
WN4204
43% late · 51 flights
-
AS1540
8% late · 49 flights
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