Informational Guide to Seattle–Tacoma Airport - Seatac (SEA) - NON OFFICIAL

National Airlines - Seattle Tacoma Airport - SEATAC (SEA)

National Airlines
On Time performance:
40
We have calculated the percentage of flights that arrived within 15 minutes of their scheduled time, or earlier, based on real flight data from the last 3 months. More about punctuality and delays

Terminal

Seattle - Tacoma Airport has a main terminal building (with Concourses A, B, C, D), along with two satellite terminal buildings (North Satellite and South Satellite). This two satellite terminal buildings, are connected with the main terminal building by an underground people mover system.

Check your arriving flight here
Check your departing flight here

Arrivals and Departures

Follow the links below in order to see all the flights scheduled for National Airlines

- National Airlines Arrivals
- National Airlines Departures

Check-in

In order to check in for your flight at Seattle Tacoma Airport - SEATAC (SEA), go to departures hall in the main building terminal, or follow the instructions provided in your ticket.

General Information and contact

- IATA Code: N8
- Website: www.nationalairlines.com/

Punctuality and delays

We have gathered data from recent months and present below an analysis of how timely the flights have been.

In terms of On-Time Performance, by analyzing the flight data from the last three months, spanning from December 05, 2025 to February 27, 2026, we have obtained these figures.
Total number of flights: 5
On Time: 2 ( 40 % )
Moderate Delay: 0 ( 0 % )
Significant Delay: 0 ( 0 % )
Major Delay: 3 ( 60 % )
Canceled: 0 ( 0 % )
Diverted: 0 ( 0 % )

Average Delay: 314 minutes.
Delays analyzed by Week: It is not possible to calculate the On-Time Performance for this flight accurately by weekday due to insufficient or non-representative data, as doing so could lead to misleading conclusions
Delays analyzed by Month: It is not possible to calculate the On-Time Performance for this flight accurately by month due to insufficient or non-representative data, as doing so could lead to misleading conclusions