B

LIH to SEA flight delays

Lihue, HI (LIH) Seattle, WA (SEA) · 2,700 miles

1,094 flights · January 2025 – August 2026 · US Bureau of Transportation Statistics

84.6%

Arrived on time

Within 15 minutes of schedule

2.19%

Cancelled

Share of scheduled flights

69 min

When late, late by

Average across delayed arrivals

12 min

Delay per flight

Averaged over every flight flown

What the record says about this route

The season swings this route hard. In July it ran 25.4 points more punctual than in December — a difference bigger than the one between the best and worst airlines on most routes. If the date is flexible, it is worth more than the carrier.

The two directions do not behave alike. SEA to LIH arrives on time 11.5 points less often than the outbound. Delay accumulates through the flying day, so whichever direction is scheduled later tends to carry the worse record — which is an argument for booking the morning departure if the choice exists.

Flights from Lihue to Seattle keep to schedule more reliably than most. On a route this punctual the day you fly matters more than the airline you pick.

The 2 airlines here are separated by under 6 points — close enough to call a tie. Choose on price and departure time.

Which airline should you fly on this route?

Over January 2025 – August 2026, Delta Air Lines arrived on time most often on LIH to SEA. Alaska Airlines was late most often. Flights ran closest to schedule in July and worst in December.

Every airline on LIH to SEA

Ranked by how many flights each one operated. A carrier with fewer than 100 flights in the period is listed but not graded.

Airline Flights On time Cancelled Avg delay Grade
Alaska Airlines 729 82.73% 1.37% 66 min B
Delta Air Lines 365 88.47% 3.84% 77 min B

Month by month

Share of flights that arrived within 15 minutes of schedule, by month flown.

Jul 2025 peak 90 Jun 2026
On-time arrival rate, %

Common questions

Are flights from Lihue to Seattle usually delayed?

84.6% of flights on the LIH to SEA route arrived within 15 minutes of schedule, so roughly 2 in every ten arrived late. That is better than the average route in this record.

Which airline is most on time from Lihue to Seattle?

Delta Air Lines, at 88.47% on time across 365 flights. The least punctual on the route was Alaska Airlines at 82.73%.

How often are LIH to SEA flights cancelled?

2.19% of scheduled flights did not operate — about 22 in every thousand. That is in the normal range.

What is the best month to fly Lihue to Seattle?

July, when 90.9% of flights arrived on time. The worst was December at 65.5%.

When LIH to SEA flights are late, how late are they?

About 69 minutes on average across the flights that arrived more than 15 minutes behind schedule.

What these figures do and do not tell you

Everything on this page is counted from the flights that actually operated on LIH to SEA during January 2025 – August 2026, as reported by the airlines to the US Bureau of Transportation Statistics. "On time" is the federal definition: arriving at the gate within 15 minutes of the scheduled time.

A route's record is a description of the past, not a forecast. Weather, air traffic control and the aircraft's earlier flights that day drive most delays, and none of them are predictable from a historical rate. What the record does tell you is whether this route runs late more often than others, and which carrier on it has the better history — which is the part you can actually act on when you book.

Cancellations are counted separately from delays because they are a different problem for a traveller: a late flight still gets you there. How the grade is calculated →