Route
LAS → SEA
Harry Reid International Airport Seattle–Tacoma International Airport
How punctual is this route?
- On-time arrivals
- 82.1%
- Less than 15 minutes late
- Cancelled
- 1.0%
- Of scheduled flights
- Average delay when late
- 70 min
- Flights arriving 15+ minutes late
- Flights tracked
- 5,617
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 47%
- Airline (crew, maintenance, cleaning) 36%
- Air traffic control & airport 14%
- Extreme weather 3%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 82.4% | 441 |
| October 2025 | 77.8% | 485 |
| November 2025 | 84.9% | 445 |
| December 2025 | 77.4% | 468 |
| January 2026 | 86.9% | 459 |
| February 2026 | 93.4% | 415 |
| March 2026 | 86.9% | 478 |
| April 2026 | 83.9% | 475 |
| May 2026 | 80.5% | 496 |
| June 2026 | 77.8% | 477 |
| July 2026 | 82.1% | 491 |
| August 2026 | 73.7% | 487 |
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 | 2,610 | 83.2% | 1.2% | 73 min |
| Delta Air Lines | 1,748 | 87.2% | 1.1% | 96 min |
| Southwest Airlines | 978 | 70.9% | 0.3% | 50 min |
| Frontier Airlines | 274 | 80.3% | 1.1% | 49 min |
| SkyWest Airlines | 7 | 85.7% | 0.0% | 65 min |
Delay odds by flight
How often each flight number arrived 15 or more minutes late over the last year.
-
DL2844
5% late · 364 flights
-
AS676
23% late · 355 flights
-
AS629
12% late · 353 flights
-
AS479
16% late · 305 flights
-
DL2880
15% late · 302 flights
-
AS552
19% late · 278 flights
-
AS701
4% late · 271 flights
-
F92407
21% late · 243 flights
-
DL2922
9% late · 239 flights
-
DL2905
14% late · 211 flights
-
AS741
13% late · 194 flights
-
AS785
15% late · 180 flights
-
AS735
10% late · 144 flights
-
AS749
23% late · 143 flights
-
DL1573
6% late · 110 flights
-
DL2956
29% late · 110 flights
-
DL719
14% late · 110 flights
-
DL945
26% late · 86 flights
-
AS599
24% late · 77 flights
-
AS698
36% late · 70 flights
-
WN2312
6% late · 47 flights
-
WN2580
2% late · 47 flights
-
WN3293
32% late · 45 flights
-
AS1681
50% late · 44 flights
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