IAD KIAD → SEA KSEA

Washington Dulles International Airport → Seattle–Tacoma International Airport

🇺🇸 Dulles, US → 🇺🇸 Seattle, US

Departure Airport

Washington Dulles International Airport

ICAO Code:: KIAD
IATA Code:: IAD
City:: 🇺🇸 Dulles
Country:: US
Elevation:: 312 ft

Destination Airport

Seattle–Tacoma International Airport

ICAO Code:: KSEA
IATA Code:: SEA
City:: 🇺🇸 Seattle
Country:: US
Elevation:: 433 ft

4

Operators

6

Flights Spotted

2336

Miles

5h 2m

Flight Duration

Route Map

Operating Airlines

United Airlines ICAO: UAL • IATA: UA

Alaska Airlines ICAO: ASA • IATA: AS

Horizon Air ICAO: QXE • IATA: QX

Delta Air Lines ICAO: DAL • IATA: DL

Airline	ICAO	IATA
United Airlines	`UAL`	`UA`
Alaska Airlines	`ASA`	`AS`
Horizon Air	`QXE`	`QX`
Delta Air Lines	`DAL`	`DL`

Flight Schedule Pattern

Day	Flights Observed	Frequency
Monday	0	0%
Tuesday	1	17%
Wednesday	0	0%
Thursday	1	17%
Friday	0	0%
Saturday	3	50%
Sunday	1	17%

Pattern Analysis

Based on 6 flight observations across all operators on this route.

Total Flights Observed: 6
Actual flights spotted on this route

Weekdays: 2 flights
Weekend: 4 flights

Leisure Route More active on weekends

All Flight Routes

4 Routes

Note: This table shows aggregated route data by airline. Each airline may operate multiple daily flights at different times. See the "Spotted Departure Times" section below for all observed departure times.

Airline	Aircraft Type	Typical Time	Flight Count	Days Active	Last Seen	Status
Alaska Airlines `ASA` / `AS`	B739	06:30 6:30 AM (Representative)	2	M T W T F S S	Aug 9, 2025	Active
Delta Air Lines `DAL` / `DL`	BCS3	07:30 7:30 AM (Representative)	1	M T W T F S S	Jul 22, 2025	Active
Horizon Air `QXE` / `QX`	B738	18:13 6:13 PM (Representative)	1	M T W T F S S	Aug 10, 2025	Active
United Airlines `UAL` / `UA`	B738	17:55 5:55 PM (Representative)	4	M T W T F S S	Aug 11, 2025	Active

Total Routes: 4

Active Routes: 4

Unique Airlines: 4

Aircraft Types: 4

Spotted Departure Times

Departure Time	Operator	ICAO	IATA
06:30 6:30 AM	Alaska Airlines	`ASA`	`AS`
07:30 7:30 AM	Delta Air Lines	`DAL`	`DL`
17:55 5:55 PM	United Airlines	`UAL`	`UA`
18:13 6:13 PM	Horizon Air	`QXE`	`QX`

Time Information

Times are shown in the departure airport's local timezone (KIAD - America/New_York).

Total Departure Times: 4

Time Range:
06:30 - 18:13

These are typical departure times observed from actual flights. Times may vary by season and schedule changes.