Washington (Dulles) to Seattle Flight Schedule — Daily Timetable & Departure Times
Washington (Dulles) to Seattle Daily Flight Schedule — Today's Timetable
| Flight | Airline | Departure | Arrival | Duration | Aircraft | Stops |
|---|---|---|---|---|---|---|
| DL-1015 | DL | 7:00 AM | 9:54 AM | 2h 54m | 223 | Direct |
| AS-351 | AS | 7:10 AM | 9:58 AM | 2h 48m | B737 MAX 9 | Direct |
| UA-2101 | UA | 9:00 AM | 11:48 AM | 2h 48m | B737 MAX 8 | Direct |
| AS-375 | AS | 9:00 AM | 11:47 AM | 2h 47m | 73J | Direct |
| UA-788 | UA | 1:01 PM | 3:42 PM | 2h 41m | 739 | Direct |
| UA-326 | UA | 5:55 PM | 8:53 PM | 2h 58m | B737 MAX 9 | Direct |
| AS-737 | AS | 7:20 PM | 10:05 PM | 2h 45m | B737-800 | Direct |
Airlines Flying Washington (Dulles) to Seattle
The following airlines operate direct flights on the Washington (Dulles) (IAD) to Seattle (SEA) route:
UA operates 3 flights daily on this route using B737 MAX 8, 739, B737 MAX 9 aircraft.
AS operates 3 flights daily on this route using 73J, B737-800, B737 MAX 9 aircraft.
DL operates 1 flight daily on this route using 223 aircraft.
Washington (Dulles) to Seattle Flight Time & Route Information
The flight distance from Washington (Dulles) (IAD) to Seattle (SEA) is approximately 3,701 km. The typical non-stop flight time on this route is –, depending on the aircraft and airline.
Flights from Washington (Dulles) to Seattle depart from IAD Airport (IAD) and arrive at SEA Airport (SEA). The first flight of the day departs at 7:00 AM and the last flight departs at 7:20 PM.
Looking for cheap Washington (Dulles) to Seattle flight tickets? Compare live fares and book directly on HappyFares at the lowest airfare.
Frequently Asked Questions — Washington (Dulles) to Seattle Flight Schedule
How many flights operate from Washington (Dulles) to Seattle daily?
7 flights operate from Washington (Dulles) to Seattle daily. Airlines on this route include UA, AS, DL.
What is the first flight from Washington (Dulles) to Seattle?
The first flight from Washington (Dulles) to Seattle is DL-1015 operated by DL, departing at 7:00 AM.
What is the last flight from Washington (Dulles) to Seattle?
The last flight from Washington (Dulles) to Seattle is AS-737 operated by AS, departing at 7:20 PM.
What is the flight time from Washington (Dulles) to Seattle?
The flight distance from Washington (Dulles) to Seattle is 3,701 km. Flight time varies by airline and aircraft type.
Which airlines fly from Washington (Dulles) to Seattle?
UA, AS, DL operate flights on the Washington (Dulles) to Seattle route. Use HappyFares to compare fares across all airlines and book the cheapest ticket.
What is the Washington (Dulles) to Seattle flight schedule today?
Today's Washington (Dulles) to Seattle flight schedule has 7 flights. Departures range from 7:00 AM (DL DL-1015) to 7:20 PM (AS AS-737).
How to check Washington (Dulles) to Seattle live flight status?
For live Washington (Dulles) to Seattle flight status including delays, gate changes, and real-time tracking, visit our dedicated flight status page.
What is the cheapest Washington (Dulles) to Seattle flight ticket?
To find the cheapest Washington (Dulles) to Seattle flight ticket, compare fares across all airlines on HappyFares. Book 3–6 weeks in advance and fly mid-week for the lowest airfare on this route.