(The month selection does not apply to on-time data.)Show all airports (by state)
Seattle, WA: Seattle/Tacoma International (SEA)Scheduled Services except Freight/MailBTS Data as of 8/2/2015
Summary Data (U.S. Flights Only)Carrier Shares for May 2014 - April 2015
Passengers*2014**2015**%ChgRank***
Arrival15,087k16,561k9.77%10
Departure15,092k16,547k9.64%10
Scheduled Flights
Departures140,037152,4968.90%15
Freight/Mail (lb.) (Scheduled and Non-Scheduled)
Total459m473m3.03%20
Carriers
Scheduled192110.53%
* Scheduled enplaned revenue passengers.
** 12 months ending April of each year.
*** Among 825 U.S. airports, 12 months ending April 2015
CarrierPassengersShare
Alaska 13,60841.10%
Delta 3,96911.99%
Horizon Air3,86211.67%
Southwest 2,9598.94%
United 2,7518.31%
Other5,95918.00%
Based on enplaned passengers(000) both arriving and departing.
Total Passengers (U.S. Flights, in millions)Top 10 Destination Airports (U.S. Only, Passengers (000))
*  Before October 2002, only carriers operating aircraft with more than 60 seats or 18,000 pounds in payload reported traffic data.
** 2015 represents data for May 2014 - April 2015.
Source: T-100 Domestic Market (US Carriers).
SEA vs. National Departure Delays (Major U.S. Carriers)SEA On-Time Performance Summary (Major U.S. Carriers Only)
A flight is considered delayed when it arrived or departed 15 or more minutes than the schedule. Delayed minutes are calculated from delayed flights only.
Domestic Flights, 2010-2015
% On Time201020112012201320142015*Rank**
Departure88%88%87%85%84%84%3
Arrival85%84%85%83%82%83%3
Avg Delay (min.)
Departure50.9051.0554.6252.4050.3250.672
Arrival48.4348.6651.0348.6749.4850.312
% Cancelled
Total0.49%0.51%0.66%0.41%0.46%0.35%1
Number of Flights (000)
Total98.6100.1100.2103.1108.7113.0
Number of Reporting Carriers
Total121212111111
* June 2014 - May 2015 .
** Ranked only for major U.S. airports, June 2014 - May 2015.