Route
SEA → LAX
Seattle–Tacoma International Airport Los Angeles International Airport
How punctual is this route?
- On-time arrivals
- 82.0%
- Less than 15 minutes late
- Cancelled
- 0.8%
- Of scheduled flights
- Average delay when late
- 65 min
- Flights arriving 15+ minutes late
- Flights tracked
- 7,536
- Scheduled flights in the period
What caused the delays
- Airline (crew, maintenance, cleaning) 49%
- Late-arriving aircraft 32%
- Air traffic control & airport 15%
- Extreme weather 3%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 88.7% | 605 |
| October 2025 | 86.1% | 614 |
| November 2025 | 84.8% | 604 |
| December 2025 | 73.8% | 632 |
| January 2026 | 81.4% | 564 |
| February 2026 | 82.6% | 554 |
| March 2026 | 83.6% | 639 |
| April 2026 | 89.5% | 611 |
| May 2026 | 86.8% | 677 |
| June 2026 | 85.0% | 651 |
| July 2026 | 70.2% | 668 |
| August 2026 | 73.4% | 717 |
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 |
|---|---|---|---|---|
| Alaska Airlines | 3,293 | 80.4% | 0.9% | 48 min |
| Delta Air Lines | 2,229 | 81.6% | 0.6% | 65 min |
| SkyWest Airlines | 1,316 | 85.0% | 0.7% | 119 min |
| United Airlines | 375 | 88.8% | 0.0% | 81 min |
| Frontier Airlines | 308 | 79.9% | 2.9% | 64 min |
| American Airlines | 15 | 86.7% | 0.0% | 138 min |
Delay odds by flight
How often each flight number arrived 15 or more minutes late over the last year.
-
DL2769
16% late · 365 flights
-
DL2861
26% late · 365 flights
-
DL1628
9% late · 361 flights
-
DL2830
16% late · 349 flights
-
AS505
17% late · 339 flights
-
DL2914
16% late · 327 flights
-
DL2854
25% late · 320 flights
-
AS1300
25% late · 302 flights
-
AS696
21% late · 277 flights
-
AS524
21% late · 276 flights
-
AS1306
10% late · 261 flights
-
F91178
18% late · 228 flights
-
OO6420
19% late · 183 flights
-
AS1338
28% late · 179 flights
-
AS1411
13% late · 170 flights
-
AS1390
30% late · 165 flights
-
OO4896
12% late · 154 flights
-
OO6413
28% late · 148 flights
-
AS1316
13% late · 136 flights
-
AS63
29% late · 130 flights
-
OO5659
3% late · 130 flights
-
UA1730
16% late · 110 flights
-
OO5657
8% late · 100 flights
-
OO5467
5% late · 89 flights
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Headlines found by Google News; stories open on the publisher's site.
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