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Route · SEA → LIH · 2020–2025 BTS data

Seattle to Lihue

According to PlainFlights' route traffic ranking (BTS On-Time Performance total flights), SEA to LIH (Seattle to Lihue) ranks #2383 of 4927 tracked domestic routes by total flights (most flights = #1).

Data updated 2026-06-13

80.5%
On-time
+1.5 pts
vs US avg
58 min
Delay when late
5,275
Flights
#2383 of 4927
Corpus placement

Cancelled

0.6%

Best Month

Nov 2024 91%

Worst Month

Jan 2024 53%

Distance

2,701 mi

Carriers

3

Monthly Performance

Recent 24 months of route data.

Period Flights Delayed Cancelled Diverted Carriers
Dec 2025 93 34 3 2 DL,AS
Nov 2025 89 26 0 1 AS,DL
Oct 2025 93 17 1 0 AS,DL
Sep 2025 90 19 0 1 DL,AS
Aug 2025 93 27 0 0 AS,DL
Jul 2025 93 27 2 0 AS,DL
Jun 2025 90 28 0 0 AS,DL
May 2025 93 16 0 0 AS,DL
Apr 2025 90 9 0 0 AS,DL
Mar 2025 93 25 0 1 AS,DL
Feb 2025 84 19 0 1 AS,DL
Jan 2025 93 10 3 0 AS,DL
Dec 2024 93 23 0 3 AS,DL
Nov 2024 89 8 0 1 AS,DL
Oct 2024 93 17 0 1 AS,DL
Sep 2024 77 24 0 0 AS,DL
Aug 2024 88 8 0 0 AS,DL
Jul 2024 93 20 3 0 AS,DL
Jun 2024 90 17 0 0 AS,DL
May 2024 88 12 0 1 AS,DL
Apr 2024 85 14 0 1 AS,DL
Mar 2024 93 11 0 0 AS,DL
Feb 2024 87 20 0 0 AS,DL
Jan 2024 93 44 1 11 AS,DL

SEA–LIH seasonal on-time pattern

Best: May (86.5%) · weakest: January (74.9%)

70%75%80%85%90% JanFebMarAprMayJunJulAugSepOctNovDec 75.6%

Strongest calendar month

May

86.5% on-time · ~84 flights/mo

Busiest calendar month

March

~90 flights/mo avg

Weakest calendar month

January

74.9% on-time · ~89 flights/mo

Cancellation Rate

0.6%

13 of 2,163 flights

Diversion Rate

1.1%

24 of 2,163 flights

Explore origin & destination

On-time and delay data for the airports this route connects.

SEA - Seattle

Full on-time, delay-cause, and seasonal performance for Seattle, WA.

SEA on-time profile

LIH - Lihue

Full on-time, delay-cause, and seasonal performance for Lihue, HI.

LIH on-time profile

Compare the two airports

See SEA and LIH side by side on delays, cancellations, and reliability.

Compare SEA vs LIH

Origin-hub reliability standing

Mid-pack among SEA departures

From SEA, this corridor sits with 63 other 75–85% on-time routes out of 89 tracked departures, not the hub's reliability leaders (25 at ≥85%) and not the softest ( 1 below 75%). Destination: Lihue · fleet on-time rank #2949 of 4927.

What the Data Says About SEA to LIH

5,275 tracked flights put the SEA to LIH pairing (Seattle to Lihue) at a 80.5% on-time rate, squarely in line with the wider network. Delays that do occur run 57.6 minutes on average. Across the 2,701-mile route and its 3 carriers, the trailing 24 months show 0.6% cancelled and 1.1% diverted (2,163 flights sampled).

The monthly split is wide on this route: Nov 2024 posted the strongest performance at 91% on-time, while Jan 2024 came in at just 53% - a 38-point swing worth factoring into travel timing.

On the multi-year calendar, SEA–LIH peaks in May at 86.5% on-time while March carries the heaviest traffic (~90 flights per month) ; the softest month is January at 74.9%, a 11.6-point swing that repeats because the corridor's weather and holiday mix stays stable year to year.

Frequently Asked Questions

Where does SEA to LIH rank among US routes by traffic? ▼
According to PlainFlights' route traffic ranking, SEA to LIH ranks #2383 of 4927 tracked domestic routes by total flights (most flights = #1). That ordinal matches our busiest-routes listing (total_flights DESC). See /methodology#corpus-placement for the exact sort basis.
How often are flights delayed from SEA to LIH? ▼
Flights from Seattle to Lihue have a 80.5% on-time rate based on 5,275 flights. The average delay is 57.6 minutes. The best recent month was Nov 2024 with 91% on-time.
What is the cancellation rate for SEA to LIH? ▼
Over the last 24 months, 0.6% of flights on this route were cancelled (13 of 2,163 flights) and 1.1% were diverted.
How far is the flight from SEA to LIH? ▼
The flight distance from Seattle (SEA) to Lihue (LIH) is approximately 2,701 miles. This route is served by 3 carriers.
When is the best time to fly from SEA to LIH? ▼
The best recent month for on-time performance was Nov 2024 (91% on-time). The worst was Jan 2024 (53% on-time). Consider booking during months with historically better performance.

Airports on this route

SEA Airport

Seattle
LIH Airport

Lihue
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 SEA–LIH data

SEA–LIH is mid-pack at 80.5% on-time; month and carrier mix move more than the corridor headline.

  • Compare SEA and LIH airport profiles: delay causes and top routes differ even on the same corridor. SEA airport
  • If your dates flex, May (86.5% on-time) beats January (74.9%) on this corridor. Seasonal chart
  • 4 other routes post a similar 80.5% 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.

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

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.