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Route · LIH → SEA · 2020–2025 BTS data

Lihue to Seattle

According to PlainFlights' route traffic ranking (BTS On-Time Performance total flights), LIH to SEA (Lihue to Seattle) ranks #2384 of 4927 tracked domestic routes by total flights (most flights = #1).

Data updated 2026-06-13

84.8%
On-time
+5.8 pts
vs US avg
63 min
Delay when late
5,273
Flights
#2384 of 4927
Corpus placement

Cancelled

1.8%

Best Month

Jul 2025 91%

Worst Month

Jan 2024 67%

Distance

2,701 mi

Carriers

3

Monthly Performance

Recent 24 months of route data.

Period Flights Delayed Cancelled Diverted Carriers
Dec 2025 93 30 6 0 DL,AS
Nov 2025 89 15 2 1 AS,DL
Oct 2025 93 11 3 0 AS,DL
Sep 2025 90 11 1 0 DL,AS
Aug 2025 93 9 0 0 AS,DL
Jul 2025 93 8 5 0 AS,DL
Jun 2025 90 17 1 1 AS,DL
May 2025 93 12 0 0 AS,DL
Apr 2025 90 10 2 0 AS,DL
Mar 2025 93 15 0 0 AS,DL
Feb 2025 84 14 0 0 AS,DL
Jan 2025 93 10 4 0 AS,DL
Dec 2024 93 14 1 0 AS,DL
Nov 2024 89 10 0 0 AS,DL
Oct 2024 93 14 0 0 AS,DL
Sep 2024 77 23 1 1 AS,DL
Aug 2024 88 10 0 0 AS,DL
Jul 2024 93 10 4 0 AS,DL
Jun 2024 90 8 1 0 AS,DL
May 2024 88 20 0 0 AS,DL
Apr 2024 85 14 1 0 AS,DL
Mar 2024 93 11 4 0 AS,DL
Feb 2024 87 8 1 0 AS,DL
Jan 2024 93 31 2 0 AS,DL

LIH–SEA seasonal on-time pattern

Best: July (91.3%) · weakest: December (79.5%)

75%80%85%90%95% JanFebMarAprMayJunJulAugSepOctNovDec 79.5%

Strongest calendar month

July

91.3% on-time · ~87 flights/mo

Busiest calendar month

March

~90 flights/mo avg

Weakest calendar month

December

79.5% on-time · ~83 flights/mo

Cancellation Rate

1.8%

39 of 2,163 flights

Diversion Rate

0.1%

3 of 2,163 flights

Explore origin & destination

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

LIH - Lihue

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

LIH on-time profile

SEA - Seattle

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

SEA on-time profile

Compare the two airports

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

Compare LIH vs SEA

Origin-hub reliability standing

Mid-pack among LIH departures

From LIH, this corridor sits with 4 other 75–85% on-time routes out of 12 tracked departures, not the hub's reliability leaders (8 at ≥85%) and not the softest ( 0 below 75%). Destination: Seattle · fleet on-time rank #1301 of 4927.

What the Data Says About LIH to SEA

Bureau of Transportation Statistics records show Lihue to Seattle (LIH to SEA) running a 84.8% on-time rate over 5,273 tracked flights, on the stronger end of a typical domestic pairing. When flights do run late, the average delay is 62.8 minutes. The 2,701-mile corridor is served by 3 carriers, and over the last 24 months 1.8% of 2,163 flights were cancelled, 0.1% diverted.

The monthly split is wide on this route: Jul 2025 posted the strongest performance at 91% on-time, while Jan 2024 came in at just 67% - a 25-point swing worth factoring into travel timing.

On the multi-year calendar, LIH–SEA peaks in July at 91.3% on-time while March carries the heaviest traffic (~90 flights per month) ; the softest month is December at 79.5%, a 11.8-point swing that repeats because the corridor's weather and holiday mix stays stable year to year.

Frequently Asked Questions

Where does LIH to SEA rank among US routes by traffic? ▼
According to PlainFlights' route traffic ranking, LIH to SEA ranks #2384 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 LIH to SEA? ▼
Flights from Lihue to Seattle have a 84.8% on-time rate based on 5,273 flights. The average delay is 62.8 minutes. The best recent month was Jul 2025 with 91% on-time.
What is the cancellation rate for LIH to SEA? ▼
Over the last 24 months, 1.8% of flights on this route were cancelled (39 of 2,163 flights) and 0.1% were diverted.
How far is the flight from LIH to SEA? ▼
The flight distance from Lihue (LIH) to Seattle (SEA) is approximately 2,701 miles. This route is served by 3 carriers.
When is the best time to fly from LIH to SEA? ▼
The best recent month for on-time performance was Jul 2025 (91% on-time). The worst was Jan 2024 (67% on-time). Consider booking during months with historically better performance.

Airports on this route

LIH Airport

Lihue
SEA Airport

Seattle
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 LIH–SEA data

LIH–SEA runs 5.8 pts above the national 79% average; the remaining risk is month-to-month swing and carrier mix, not a weak headline rate.

  • Compare LIH and SEA airport profiles: delay causes and top routes differ even on the same corridor. LIH airport
  • If your dates flex, July (91.3% on-time) beats December (79.5%) on this corridor. Seasonal chart
  • 4 other routes post a similar 84.8% 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.