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Route · LAS → SEA · 2020–2025 BTS data

Las Vegas to Seattle

The LAS–SEA corridor (Las Vegas, NV → Seattle, WA) runs ahead of the national average, served by 33 carriers across roughly 867 miles.

Data updated 2026-06-13

81.5%
On-time
+2.5 pts
vs US avg
65 min
Delay when late
36,175
Flights

Cancelled

0.9%

Best Month

Feb 2024 86%

Worst Month

Jul 2024 69%

Distance

867 mi

Carriers

33

Monthly Performance

Recent 24 months of route data.

Period Flights Delayed Cancelled Diverted Carriers
Dec 2025 468 105 3 0 DL,WN,F9,AS
Nov 2025 445 66 8 0 DL,F9,AS,WN
Oct 2025 485 105 12 0 AS,DL,WN,F9
Sep 2025 441 77 1 2 WN,DL,F9,AS
Aug 2025 489 115 0 0 WN,F9,NK,AS,DL
Jul 2025 521 99 5 1 AS,DL,NK,WN,F9
Jun 2025 527 130 6 0 AS,DL,NK,WN,F9
May 2025 565 130 1 0 AS,DL,NK,WN,F9
Apr 2025 507 96 1 0 DL,F9,NK,WN,AS
Mar 2025 504 75 1 1 AS,OO,WN,DL,F9,NK
Feb 2025 438 67 7 0 AS,OO,WN,DL,F9,NK
Jan 2025 483 85 0 1 AS,OO,WN,DL,F9,NK
Dec 2024 494 85 2 0 AS,DL,F9,NK,WN
Nov 2024 509 74 4 1 NK,WN,AS,DL,F9
Oct 2024 593 93 0 0 AS,OO,WN,DL,NK,F9
Sep 2024 579 135 5 0 WN,NK,AS,DL,F9
Aug 2024 618 177 9 1 AS,DL,F9,NK,WN
Jul 2024 590 184 12 0 AS,DL,F9,NK,WN
Jun 2024 554 149 4 0 AS,DL,F9,NK,WN
May 2024 558 128 0 0 AS,DL,F9,NK,OO,WN
Apr 2024 537 106 0 0 AS,DL,F9,NK,OO,WN
Mar 2024 549 125 4 0 AS,DL,F9,NK,OO,WN
Feb 2024 498 72 5 0 AS,DL,F9,NK,OO,WN
Jan 2024 541 114 28 0 AS,DL,F9,NK,WN

Cancellation Rate

0.9%

118 of 12,493 flights

Diversion Rate

0.1%

7 of 12,493 flights

What the Data Says About LAS to SEA

36,175 tracked flights put the LAS to SEA pairing (Las Vegas to Seattle) at a 81.5% on-time rate, squarely in line with the wider network. Delays that do occur run 64.5 minutes on average. Across the 867-mile route and its 33 carriers, the trailing 24 months show 0.9% cancelled and 0.1% diverted (12,493 flights sampled).

The monthly split is wide on this route: Feb 2024 posted the strongest performance at 86% on-time, while Jul 2024 came in at just 69% - a 17-point swing worth factoring into travel timing.

Frequently Asked Questions

How often are flights delayed from LAS to SEA?
Flights from Las Vegas to Seattle have a 81.5% on-time rate based on 36,175 flights. The average delay is 64.5 minutes. The best recent month was Feb 2024 with 86% on-time.
What is the cancellation rate for LAS to SEA?
Over the last 24 months, 0.9% of flights on this route were cancelled (118 of 12,493 flights) and 0.1% were diverted.
How far is the flight from LAS to SEA?
The flight distance from Las Vegas (LAS) to Seattle (SEA) is approximately 867 miles. This route is served by 33 carriers.
When is the best time to fly from LAS to SEA?
The best recent month for on-time performance was Feb 2024 (86% on-time). The worst was Jul 2024 (69% on-time). Consider booking during months with historically better performance.

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Data source

Data Source: Bureau of Transportation Statistics (BTS), On-Time Performance Data. Statistics reflect cumulative performance across all available reporting periods.

Data sourced from U.S. Department of Transportation Bureau of Transportation Statistics (BTS) On-Time Performance data. See our methodology for details. Retrieved and formatted by PlainFlights Editorial

Every figure on PlainFlights is rendered directly from BTS On-Time Performance data, no number is typed in by an editor. This page aggregates this specific route's on-time performance and monthly trend, live from the dataset. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.