Route · LAS → SEA · 2020–2025 BTS data
Las Vegas to Seattle
According to PlainFlights' route traffic ranking (BTS On-Time Performance total flights), LAS to SEA (Las Vegas to Seattle) ranks #55 of 4927 tracked domestic routes by total flights (most flights = #1).
Data updated 2026-06-13
- 81.5%
- On-time
- +2.5 pts
- vs US avg
- 65 min
- Delay when late
- 36,175
- Flights
- #55 of 4927
- Corpus placement
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 |
LAS–SEA seasonal on-time pattern
Best: November (84.8%) · weakest: June (76.9%)
Strongest calendar month
November
84.8% on-time · ~495 flights/mo
Busiest calendar month
October
~549 flights/mo avg
Weakest calendar month
June
76.9% on-time · ~482 flights/mo
Cancellation Rate
0.9%
118 of 12,493 flights
Diversion Rate
0.1%
7 of 12,493 flights
Explore origin & destination
On-time and delay data for the airports this route connects.
LAS - Las Vegas
Full on-time, delay-cause, and seasonal performance for Las Vegas, NV.
LAS on-time profileSEA - Seattle
Full on-time, delay-cause, and seasonal performance for Seattle, WA.
SEA on-time profileCompare the two airports
See LAS and SEA side by side on delays, cancellations, and reliability.
Compare LAS vs SEAOrigin-hub reliability standing
Mid-pack among LAS departures
From LAS, this corridor sits with 71 other 75–85% on-time routes out of 83 tracked departures, not the hub's reliability leaders (2 at ≥85%) and not the softest ( 10 below 75%). Destination: Seattle · fleet on-time rank #2546 of 4927.
Similar routes
Other BTS-tracked routes with comparable performance or trip length to LAS–SEA.
Routes with a similar on-time rate
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.
On the multi-year calendar, LAS–SEA peaks in November at 84.8% on-time while October carries the heaviest traffic (~549 flights per month) ; the softest month is June at 76.9%, a 7.9-point swing that repeats because the corridor's weather and holiday mix stays stable year to year.
Frequently Asked Questions
Where does LAS to SEA rank among US routes by traffic? ▼
How often are flights delayed from LAS to SEA? ▼
What is the cancellation rate for LAS to SEA? ▼
How far is the flight from LAS to SEA? ▼
When is the best time to fly from LAS to SEA? ▼
Airports on this route
Data source
Data Source: Bureau of Transportation Statistics (BTS), On-Time Performance Data. Statistics reflect cumulative performance across all available reporting periods.
Read our methodology - how this data is sourced, computed, and verified.
Using LAS–SEA data
LAS–SEA is mid-pack at 81.5% on-time; month and carrier mix move more than the corridor headline.
- Compare LAS and SEA airport profiles: delay causes and top routes differ even on the same corridor. LAS airport
- If your dates flex, November (84.8% on-time) beats June (76.9%) on this corridor. Seasonal chart
- 4 other routes post a similar 81.5% on-time rate; compare before you commit to this pairing. Similar routes
On-time rate reflects the BTS historical average across all reporting carriers on this origin–destination pair, not any single flight or booking recommendation.
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.